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Vestnik MGSU 2013/12

DOI : 10.22227/1997-0935.2013.12

Articles count - 22

Pages - 183

ARCHITECTURE AND URBAN DEVELOPMENT. RESTRUCTURING AND RESTORATION

Anatomy of architectural critiсism: modern accents

  • Tkachev Valentin Nikitovich - Moscow State University of Civil Engineering (MGSU) Doctor of Architecture, Professor, Department of Design of Buildings and Town Planning, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 7-13

The emphasis of modern critics shifts from discussions on formal issues (stylistics, decorative components, imagery) to the content issues of environment organization, materialized by town-planning actions. The prospects of the destruction of the existing town structure by spontaneous infill construction are quite realistic, which requires not only critical discussion, but also strong opposition to antisocial forces. A city stopped to be a comfortable environment for a human.A number of estimations is put forward, which characterize negative trends in modern city architecture. They represent the object of technical analysis and positive recommendations, which should be regarded a creative mechanism of influence on the practice through the theory.The intensity of social and economic transformations as givenness of modern reality radically changes the mentality, esthetic and space perception of the living environment, opinions on the value interrelation of new and old in building. All these requires heightened positive reasoning and constructive, maybe even tough actions.The danger of losing the face of Russian architecture is also essential. The reason for this is in epidemic copying by native architects, who are fascinated by foreign masterpieces eccentricity.

DOI: 10.22227/1997-0935.2013.12.7-13

References
  1. Mastera sovetskoy arkhitektury ob arkhitekture [Adepts of Soviet Architecture about the Architecture]. T. I. M. Iskusstvo Publ., 1975, 544 p.
  2. Tasalov V.I. Ocherk esteticheskikh idey arkhitektury kapitalisticheskogo obshchestva [Essay on aesthetic ideas of the Architecture of Capitalist Society]. Moscow, Nauka Publ., 1979, 335 p.
  3. Sovremennye problemy formirovaniya gorodskoy sredy: Vsesoyuznaya nauchnaya konferentsiya [All-Union Scientific Conference "Modern Problems of Urban Environment Formation]. Suzdal, 1989, VNIITAG Publ., part II, 151 p.
  4. Taut B. Die neue Baukunst in Europa und Amerika. Stuttgart, J. Hoffmann Verlag, 1979, 226 p.
  5. Tange Kendzo. Arkhitektura Yaponii. Traditsiya i sovremennost' [Architecture of Japan. Tradition and Modernity]. Moscow, Progress Publ., 1975, 240 p.
  6. Niemeyer O. La forme en architecture. Rio de Janeiro, 1978, 180 p.
  7. Ivanova E.K., Katsnel'son R.A. Pier Luigi Nervi. Moscow, Stroyizdat Publ., 1986, 126 p.
  8. Bykov V.V. Rol' promyshlennoy zastroyki v formirovanii gumanizirovannoy gorodskoy sredy [Role of Industrial Development in the Formation of Humanized Urban Environment]. Gorodskaya sreda: sbornik materialov Vsesyuznoy nauchnoy konferentsii [City Environment: Collection of Materials of All-Union Scientific Conference]. Moscow, VNIITAG Publ., 1989, 153 p.
  9. Maloyan G.A. K problemam planirovki i zastroyki suburbanizatsionnogo rasseleniya v gorodskikh aglomeratsiyakh [On the Problems of Planning and Development of Suburban Settlement in Urban Agglomerations]. Vestnik Volgogradskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. Seriya «Stroitel'stvo i arkhitektura» [Proceedings of Volgograd State University of Architecture and Civil Engineering]. 2013, no. 31(50), pp. 142—147.
  10. Maloyan G.A. Moskva. Strategiya detsentralizatsii («stenokardiya» megapolisa nachinaetsya v rasselenii) [Moscow. Decentralization Strategy («Breast-pang» of Metropolis begins in the Process of Resettlement)]. ACADEMIA Publ., 2013, no. 2, 76—79 p.
  11. Pivoeva V.M., editor. «Svoe» i «chuzhoe» v kul'ture: sbornik nauchnykh statey ["Our Own" and "Alien" in the Culture: Collection of Scientific Articles]. Petrozavodsk, PetrGU Publ., 1998, 107 p.

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DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

Determiningthe dynamic load caused by accidental explosions affecting buildingsand structures of hazardous areas

  • Komarov Aleksandr Andreevich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Department of Hydraulics and Water Resources, Moscow State University of Civil Engineering (MGSU), ; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Bazhina Elena Vital'evna - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Associate Professor, Department of Hydraulics and Water Resources, Moscow State University of Civil Engineering (MGSU), ; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 14-19

When designing buildings and structures located on the territory of explosive plants, it is necessary to calculate the maximum load that can occur during emergency explosions. The buildings should be designed with regard to the obtained values of explosive load. When performing such calculations designers face the following problem. The calculations based on simple formulas and simplified physical ideas about the process of explosion, lead to a considerable overestimation of the parameters of explosive load. This leads to unjustified increase of the price of construction. Performing precise numerical calculations is not essentially possible due to the fact that we don’t know the initial and boundary conditions for the development of accidental explosion.This publication is an attempt to find a compromise in respect of this issue. Calculation scheme should be simple enough, but should accurately describe the physical processes related to the formation and distribution of explosive load in the enterprise territory.The article considers a methodology of calculating the propagation of shock waves and waves of compression, which are formed by accidental explosions in the atmosphere. The wave flows propagation is considered on the territories adjacent to the explosive objects. The method is based on the conservation laws written in the integral form, which allows carrying out calculations for discontinuous boundary and initial conditions.The calculations take into account the actual location of buildings and constructions in the territory under consideration. This allows determining the influence of buildings and structures on the distribution of the blast wave. The article presents the results of calculating the propagation of blast waves on the territory of a real explosive object. The article provides the basic data, which designers need for designing buildings in explosion version.

DOI: 10.22227/1997-0935.2013.12.14-19

References
  1. Komarov A.A. Raschet gazodinamicheskikh kharakteristik potokov pri avariynykh deflagratsionnykh vzryvakh na naruzhnykh ustanovkakh [Calculation of Gas-dynamic Characteristics of the Flows in Case of Emergency Explosions at Outdoor Installations]. Pozharovzryvobezopasnost' [Fire-Explosion Safety]. 2002, vol. 11, no. 5, pp.15—18.
  2. Abrosimov A.A., Komarov A.A. Mekhanizmy formirovaniya vzryvnykh nagruzok na territorii neftepererabatyvayushchikh kompleksov [The Formation Mechanisms of Explosive Loads in Oil Refineries Territories]. Neft', gaz i biznes [Oil, Gas and Business]. 2002, no. 6 (50), pp. 58—61.
  3. Godunov S.K., editor. Chislennoe reshenie mnogomernykh zadach gazovoy dinamiki [Numerical Solutions of Multi-dimensional Problems of Gas Dynamics]. Moscow, Nauka Publ., 1976, 400 p.
  4. Landau L.D., Lifishts U.M. Mekhanika sploshnykh sred [Continuum Mechanics]. Moscow, Izd-vo tekhniko-teoreticheskoy literatury Publ., 1953, 788 p.
  5. Clavin P., Williams F.A. Analytical Studies of the Dynamics of Gaseous Detonations. Philosophical Transactions of the Royal Society. A 370, 2012.
  6. Poludnenko A.Y., Gardiner T.A., Oran E.S. Spontaneous Transition of Turbulent Flames to Detonations in Unconfined Media. Phys. Rey. Lett. 2011, 107, 054 501—054 514.

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Calculation of the path lengthin the pursuit problem

  • Kuzmina Lyudmila Ivanovna - National Research Institute “Higher School of Economics” Candidate of Physico-Mathematical Sciences, Professor Assistant, Department of Higher Mathematics of Moscow Institute of Electronics and Mathematics, National Research Institute “Higher School of Economics”, 20 ulitsa Myasnitskaya, Moscow, 101000, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Osipov Yuriy Viktorovich - Moscow State University of Civil Engineering (MGSU) Candidate of Physico-Mathematical Sciences, Professor, Department of Information Sciences and Applied Mathematics, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 20-26

Classic pursuit problem is studied with two material points — a Pursuer and an Evader, who move in plane at constant speeds. The velocity vector of the Evader does not change its direction and the velocity vector of the Pursuer turns and is always aimed at the Evader. If the Pursuer moves at a higher speed, he will overtake the Pursued for any initial angle between velocity vectors.The mechanical path geometry is established. The path line rotates around the origin of coordinates so that at the final meeting point the line tangent to the motion trajectory always coincides with the velocity vector of the Evader. The two-parameter integral for the length of the pursuit curve is considered, its asymptotics up to quartic is calculated on the assumption that the speed of the Pursuer is much higher than the speed of the Evader. Rapid convergence of the asymptotics to the integral for the path length is provided by the absence of the first and third members of the asymptotic expansion. Numerical computation of the path length is compared to the asymptotic formulas. Calculations show that the resulting asymptotics is a good approximation of the integral for the path length, and the quartic in the asymptotic formulas significantly improves the approximation.

DOI: 10.22227/1997-0935.2013.12.20-26

References
  1. Simoson A.J. Pursuit Curves for the Man in the Moone. The College Mathematics Journal. Washington, 2007, vol. 38, no. 5, pp. 330—338.
  2. Nahin P.J. Chases and Escapes: The Mathematics of Pursuit and Evasion. Princeton University Press, 2007, 270 p.
  3. Krasovskiy N.N. Igrovye zadachi o vstreche dvizheniy [Game Problems on the Meeting of Movements]. Moscow, Nauka Publ., 1970, 420 p.
  4. Rikhsiev B.B. Differentsial'nye igry s prostym dvizheniem [Differential Games with Simple Motion]. Tashkent, Fan Publ., 1989, 232 p.
  5. Azamov A.A., Kuchkarov A.Sh., Samatov B.O. O svyazi mezhdu zadachami presledovaniya, upravlyaemosti i ustoychivosti v tselom v lineynykh sistemakh s raznotipnymi ogranicheniyami [The Relation between the Pursuit, Handling and Overall Stability Problems in Linear Systems with Heterogeneous Constraints]. Prikladnaya matematika i mekhanika [Applied Mathematics and Mechanics]. 2007, vol. 71, no. 2, pp. 259—263.
  6. Sigaladze Z.K., Chashchina O.I. Zadacha presledovaniya zaytsa volkom kak uprazhnenie elementarnoy kinematiki [The Dog-and-rabbit Chase Problem as an Exercise in Introductory Kinematics]. Vestnik NGU. Seriya Fizika [Bulletin of the Novosibirsk State University. Physics Series]. 2010, vol. 5, no. 2, pp. 111—115.
  7. Bernhart A. Curves of Pursuit. Scripta Mathematica. 1954, vol. 20, pp. 125—141.
  8. Barton J.C., Eliezer C.J. On Pursuit Curves. The Journal of the Australian Mathematical Society, ser. B41. 2000, pp. 358—371.
  9. Petrosyan L.A. Differential Games of Pursuit. World Scientific. Singapore, 1993, 326 p.
  10. Alekseev E.R., Chesnokova O.V. Reshenie zadach vychislitel'noy matematiki v paketakh Mathcad 12, MATLAB 7, Maple 9 [Solving Computational Mathematics Problems Using Packages Mathcad 12, MATLAB 7, Maple 9. Moscow, NT Press Publ., 2006, 492 p.
  11. Kuzmina L.I., Osipov Yu.V. Calculation of the Pursuit Curve Length. Journal for Computational Civil and Structural Engineering. Moscow, ASV Publ., 2013, vol. 9, no. 3, pp. 31—39.
  12. Kuz'mina L.I., Osipov Yu.V. Asimptotika dliny traektorii v zadache presledovaniya [Asymptotics of the PathLength in the Pursuit Problem]. Voprosy prikladnoy matematiki i vychislitel'noy mekhaniki [Problems of Applied Mathematics and Computational Mechanics]. 2013, ¹ 16, pp. 238—249.
  13. Maslov V.P. Asimptoticheskie metody i teoriya vozmushcheniy [Asymptotic Methods and Perturbation Theory]. Moscow, Nauka Publ., 1988, 310 p.
  14. Olver F. Introduction to Asymptotics and Special Functions. New York, Academic Press, 1974, 375 pp.

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Bifurcation points of a rotating and oscillatingmechanical system depending on one parameter

  • Lenev Vlamidir Stepanovich - Moscow State University of Civil Engineering (MGSU) Candidate of Physical and Mathematical Sciences, Associate Professor, Department of Higher Mathematics, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 27-33

This work is dedicated to finding bifurcation points for a special mechanical system comprised of a pendulum hanging on a spherical joint. Its motion and positions depend on one parameter: the angular velocity around the axis. When the parameter grows uninterruptedly, the system passes through a discrete sequence of bifurcation points: when the parameter has a small value, the mass of pendulum meanwhile has special configuration, it makes the simple rotation near its balance position. The increase of the parameter up to the first point of bifurcation deviates the pendulum from balance: now it is a conic pendulum. The consequent increase of the parameter the friction in the hinge causes the precession and then the vertical gyroscope motion. Their parameters are calculated and there are mechanical interpretations for them. For example, at the first point of bifurcation we have congruence of rotary motion and oscillation of the pendulum. At the second point there is a change in the configuration of the conic pendulum. Physical interpretations are given at the third, the fourth, the fifth and the sixth points of bifurcation where the masses reach the first, the second, the third and the forth cosmic velocities respectively. Also the article demonstrates a new method of accelerating masses to cosmic velocities.The article is of theoretical character and the ideas of G.M.T. Tompson, V.I. Arnold, A.A. Andronov, V.S. Lenev are used in it.

DOI: 10.22227/1997-0935.2013.12.27-33

References
  1. Arnol'd V.I. Teoriya katastrof [Catastrophe Theory]. Moscow, Nauka Publ., 1990.
  2. Throm R. Catastrophe Theory. Lecture Notes Math. 1960, vol. 468.
  3. Lenev V.S. Tochki bifurkatsiy nekotorykh vrashchayushchikhsya i koleblyushchikhsya sistem [Points of Bifurcation of Some Rotating and Oscillating Systems]. Teoriya i praktika rascheta zdaniy, sooruzheniy i elementov konstruktsiy. Analiticheskie i chislennye metody: sbornik trudov vtoroy Mezhdunarodnoy nauchno-prakticheskoy konferentsii [Theory and Practice of Calculating Buildings, Structures and Elements of Structures. Analytical and Numerical Methods: Collection of Works of the 2nd International Scientific and Practical Conference]. Russia, Moscow, MGSU Publ., 2009, pp. 209—214.
  4. Babakov I.M. Teoriya kolebaniy [Oscillation theory]. Moscow, Nauka Publ., 1968.
  5. Dzh. M.T. Tompson. Neustoychivost' i katastrofy v nauke i tekhnike [Instability and Catastrophes in Science and Technology]. Moscow, Mir Publ., 1985.
  6. Strelkov P.S. Mekhanika [Mechanics]. Moscow, Nauka Publ., 1975.
  7. Andronov A.A. Matematicheskie problemy teorii avtokolebaniy [Mathematical Problem of Auto Oscillations]. I Vsesoyuznaya konferentsiya po kolebaniyam [First All-Union Conference on Oscillations]. Moscow-Leningrad, GTTI Publ., pp. 32—72.

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Simulation of structure interaction with the base in caseof earthquake

  • Mkrtychev Oleg Vartanovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, head, Scientific Laboratory of Reliability and Seismic Resistance of Structures, Professor, Department of Strength of Materials, Moscow State University of Civil Engineering (National Research University) (MGSU), ; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Dzhinchvelashvili Guram Avtandilovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Professor, Department of Strength of Materials, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Busalova Marina Sergeevna - Moscow State University of Civil Engineering (MGSU) postgraduate student, Department of Strength of Materials, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 34-40

The article focuses on the problem of calculating seismic impact on structures. The article studies the impact of structures on the changes in seismic load parameters. Studies are conducted with the use of direct dynamic calculation methods implementing explicit integration schemes equations of motion. Two computational models of monolithic reinforced concrete buildings on elastic half-space are considered: 9 and 16 storeys. The solution of the problem is found in time domain by direct integration of the equations of motion for the explicit scheme using software package LS-DYNA. The foundation simulation is performed using solid finite elements, and the bearing structures of buildings — using solid shell finite elements. The external action applied in the horizontal direction X is shown by accelerogram. Synthesized accelerogram is obtained by the Institute of Physics of the Earth of the Russian Academy of Sciences for Imereti lowland region, city of Sochi. In the study the authors used a specially developed method of calculation based on the algorithm of the base-structure interaction (interface soil-structure interaction). This algorithm can effectively simulate the interaction with linear and nonlinear deformable half-space in the form of a limited array with "transparent" borders. The results show that neglecting the change in external seismic impact parameters caused by the influence of the structures leads to errors in calculation results, which in turn can lead to deficiency of the bearing capacity and seismic resistance of building structures designed in seismic regions. When using the accepted methods of earthquake calculation based on existing regulations, the original design accelerograms should be set considering the dynamic characteristics of the designed buildings.

DOI: 10.22227/1997-0935.2013.12.34-40

References
  1. Mkrtychev O.V., Dzhinchvelashvili G.A. Raschet zhelezobetonnogo monolitnogo zdaniya na zemletryasenie v nelineynoy postanovke [Calculation of Reinforced Concrete Monolithic Building in Case of Earthquake in Nonlinear Formulation]. Sbornik dokladov Mezhdunarodnoy nauchno-metodicheskoy konferentsii, posvyashchennoy 100-letiyu so dnya rozhdeniya V.N. Baykova. Moskva, 4-5 aprelya 2012 goda [Collected Reports of the International Scientific Conference Dedicated to the 100th Anniversary of V.N. Baykov. Moscow, 4-5 April, 2012]. Moscow, 2012, pp. 283—289.
  2. Mkrtychev O.V., Dzhinchvelashvili G.A. Otsenka nelineynoy raboty zdaniy i sooruzheniy pri avariynykh vozdeystviyakh [Evaluation of Nonlinear Operation of Buildings and Structures in Emergency Exposures]. Problemy bezopasnosti rossiyskogo obshchestva [Security Problems of the Russian Society]. 2012, no. 3, pp. 17—31.
  3. Mkrtychev O.V. Otsenka nadezhnosti mnogoetazhnogo zdaniya pri seysmicheskom vozdeystvii na osnove resheniya dinamicheskoy zadachi [Evaluation of a Multi-storey Building Reliability under Seismic Impacts Basing on Dynamic Problem Solution]. Seysmostoykoe stroitel'stvo [Antiseismic Construction]. 2001, no. 2, pp. 33—35.
  4. Mkrtychev O.V. Raschet bol'sheproletnykh i vysotnykh sooruzheniy na ustoychivost' k progressiruyushchemu obrusheniyu pri seysmicheskikh i avariynykh vozdeystviyakh v nelineynoy dinamicheskoy postanovke [Calculation of Long-span and High-rise Buildings for Resistance to Progressive Collapse under Seismic and Emergency Impacts in Nonlinear Dynamic Formulation]. Sbornik dokladov nauchnogo seminara «Aktual'nye problemy rascheta zdaniy i sooruzheniy na osobye vozdeystviya (vklyuchaya seysmicheskie i avariynye)». 21 maya 2009 goda [Current Issues of the Analysis of Buildings and Structures in Case of Emergency Effects (Including Seismic and Accidental). Scientific Workshop. May 21, 2009]. Moscow, MGSU Publ., 2009, pp. 1—9.
  5. Herrera I., Bielak J. Soil-structure Interaction as a Diffraction Problem. Proceedings of the 6th World Conference on Earthquake Engineering. New Delhi, India, 1977, vol. 2, pp. 1467—1472.
  6. Bielak J., Loukakis K., Hisada Y., Yoshimura C. Domain Reduction Method for Threedimensional Earthquake Modeling in Localized Regions, Part I: Theory. Bulletin of the Seismological Society of America. 2003, vol. 93, no. 2, pp. 817—824.
  7. Yoshimura C., Bielak J., Hisada Y., Fernandez A. Domain Reduction Method for Threedimensional Earthquake Modeling in Localized Regions, Part II: Verification and Applications. Bulletin of the Seismological Society of America. 2003, vol. 93, no. 2, pp. 825—841.

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Strength of the expandedstretching profile: tests and mathematical modeling

  • Sinelnikov Aleksey Sergeevich - Saint Petersburg State Polytechnical University (SPbGPU) postgraduate student, Department of Unique Buildings and Structures Engineering, Saint Petersburg State Polytechnical University (SPbGPU), 29 Polytechnicheskaya, st., St.Petersburg, 195251, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Orlova Anna Vladimirovna - Saint Petersburg State Polytechnical University (SPbGPU) student, Department of Unique Buildings and Structures Engineering, Saint Petersburg State Polytechnical University (SPbGPU), 29 Polytechnicheskaya, st., St.Petersburg, 195251, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 41-54

This summary report is based on the experimental and numerical research of thin-walled cross-section’s compression resistance carried out in St. Petersburg State Polytechnical University. Current situation on the Russian market concerning the usage of cold-formed thin walled cross-sections is aimed at finding out a base foundation to start up a stipulation of the elements under discussion in the building industry. Some questions about the compression resistance of such cross-sections were raised at different conferences by scientific community and such companies as Arsenal ST, Baltprofile (Russia) and Rautaruukki Oyj (Finland). In this field a number of Doctoral theses have been defended during recent years in Russia (A.R. Tusnin, G.I. Belyy, I.V. Astakhov, D.V. Kuz'menko). Steel galvanized Cand U-profiles and thermo-profiles are the types of thin-walled cross-sections are normally used in small houses construction. Thermo-profiles have slots in webs that decrease the thermal flow through the web, but have negative effect on strength of the profiles. Reticular-stretched thermo-profile is a new type of thin-walled cross-sections that found its place on Russian market. These profiles were an object of the research. The carried out investigations included tests to prove the compression resistance of the thin-walled cross-sections. The compression tests as a result showed the behavior of stud’s profile under critical load. The specimen was compressed under various loads and deformation was recorded. In order to get buckling force a load-deformation diagram was plotted and analyzed. Analytical modeling of thin-walled cross-sections was done with contemporary analysis software (SCAD Office) using finite element method (FEM). During the modeling process the thin-walled profile based on shelland bar-elements were created and buckling analysis task showed good results.

DOI: 10.22227/1997-0935.2013.12.41-54

References
  1. Shatov D.S. Konechnoelementnoe modelirovanie perforirovannykh stoek otkrytogo secheniya iz kholodnognutykh profiley [Finite Element Modelling of Perforated Stays of Open Section Made of Cold-bent sections]. Inzhenerno stroitel'nyy zhurnal [Engineering Construction Journal]. 2011, no. 3, pp. 32—34.
  2. Gordeeva A.O., Vatin N.I. Raschetnaya konechno-elementnaya model' kholodnognutogo perforirovannogo tonkostennogo sterzhnya v programmno-vychislitel'nom komplekse SCADOffice. Inzhenerno stroitel'nyy zhurnal [Calculation Finite Element Model of a Cold-formed Perforated Thin-wall Shank in Programming and Computing Suite SCADOffice]. 2011, no. 3, pp. 36—46.
  3. Zhmarin E.N. Mezhdunarodnaya assotsiatsiya legkogo stal'nogo stroitel'stva [International Assosiation of Light Steel Engineering]. Stroitel'stvo unikal'nykh zdaniy i sooruzheniy [Construction of Unique Buildings and Structures]. 2012, no. 2, pp. 27—30.
  4. Yurchenko V.V. Proektirovanie karkasov zdaniy iz tonkostennykh kholodnognutykh profiley v srede «SCADOffice» [Buildings Framework Modellng Made of Thin-wall Cold-formed Profiles in SCADOffice]. Inzhenerno stroitel'nyy zhurnal [Engineering Construction Journal]. 2010, no. 8, pp. 38—46.
  5. Vatin N.I., Popova E.N. Termoprofil' v legkikh stal'nykh stroitel'nykh konstruktsiyakh [Thermal Profile in Light Steel Building Structures]. Saint Petersburg, SPbGPU Publ., 2006, 63 p.
  6. Kolesov A.I., Lapshin A.A., Valov A.V. Sovremennye metody issledovaniya tonkostennykh stal'nykh konstruktsiy [Modern Methods of Examining Thin-Wall Steel Structures]. Privolzhskiy nauchnyy zhurnal [Volga Scientific Journal]. 2007, no. 1, pp. 28—33.
  7. Kretinin A.N., Krylov I.I. Osobennosti raboty tonkostennoy balki iz gnutykh otsinkovannykh profiley [Operation Features of Thin-wall Beam Made of Roll-Formed Zink-Coated Sections]. Izvestiya vysshikh uchebnykh zavedeniy. Stroitel'stvo [News of Institutions of Higher Education. Engineering]. 2008, no. 6, pp. 1—11.
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  10. Markku Heinisuo. Comparative Study of Multiple Criteria Decision Making Methods for Building Design. Advanced Engineering Informatics. October 2012, vol. 26, no. 4, pp. 716—726.
  11. Tusnin A.R. Chislennyy raschet konstruktsiy iz tonkostennykh sterzhney otkrytogo profilya [Numerical Calculations of the Structures Made of Thin-Wall Shanks of Open Profile]. Moscow, ASV Publ., 2009, 143 p.
  12. Tusnin A.R. Osobennosti chislennogo rascheta konstruktsiy iz tonkostennykh sterzhney otkrytogo profilya [Features of Numerical Calculations of the Structures Made of Thin-Wall Shanks of Open Profile]. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering]. 2010, no. 11, pp. 60—63.
  13. Perel'muter A.V., Slivker V.I. Raschetnye modeli sooruzheniy i vozmozhnost' ikh analiza [Calculation Models of Structures and Possibilities of Their Analysis]. Moscow, DMK Press Publ., 2002, 618 p.
  14. Slivker V.I. Stroitel'naya mekhanika [Structural Mechanics]. Moscow, ASV Publ., 2005, 736 p.
  15. Perel'muter A.V., Kriksunov E.Z., Karpilovskiy V.S., Malyarenko A.A. Integrirovannaya sistema dlya rascheta i proektirovaniya nesushchikh konstruktsiy zdaniy i sooruzheniy SCAD Office [Integrated System for Calculation and Design of the Bearing Structuresnof Buildings in SCAD Office]. Novaya versiya, novye vozmozhnosti. Inzhenerno stroitel'nyy zhurnal [New Version, New Possibilities. Engineering Construction Journal]. 2009, no. 2, pp. 10—12.
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  19. Hancock G.J. Light Gauge Construction. Progress in Structural Engineering and Materials. 1997, pp. 25—26.
  20. Gioncu V. General theory of coupled instabilities. Thin-Walled Structures, 1994, p. 19(2—4).
  21. Belyy G.I., Astakhov I.V. Issledovanie vliyaniya razlichnykh faktorov na prostranstvennuyu ustoychivost' sterzhnevykh elementov iz kholodnognutykh profiley [Research on the Influence of Various Factors on Spatial Stability of Axial Elements Made of Cold-Formed Profiles]. Aktual'nye problemy sovremennogo stroitel'stva: Doklady 68-y nauchnoy konferentsii professorov, prepodavateley, nauchnykh rabotnikov, inzhenerov i aspirantov universiteta [Current Issues of Contemporary Engineering: Reports of the 68th Scientific Conference of the Professors, Lecturers, Research Workers, Engineers and Postgraduate Students of the University]. Saint Petersburg, SPbGASU Publ., 2011, p. 27.
  22. Belyy G.I. Raschet uprugoplasticheskikh tonkostennykh sterzhney v poprostranstvenno-deformiruemoy skheme [Calculation of Thin-Wall Elastic-Plastic Shank in Spatial Deformable Scheme] Stroitel'naya mekhanika sooruzheniy: mezhvuzovskiy tematicheskiy sbornik trudov [Structural Mechanics of Buildings: Interuniversity Thematical Collection of Works]. LISI. 1983, no. 42, pp. 40—48.
  23. Cheng Y., Schafer B.W. Simulation of Cold-formed Steel Beams in Local and Distortional Buckling with Applications to the Direct Strength Method. Journal of Constructional Steel Research. 2007, vol. 63, no. 5, pp. 581—590.
  24. Rasmussen K.J.R. Experimental Investigation of Local-overall Interaction Buckling of Stainless Steel Lipped Channel Columns. Journal of Constructional Steel Research. 2009, vol. 65, no. 8—9, pp. 1677—1684.
  25. Smaznov D.N. Ustoychivost' pri szhatii sostavnykh kolonn, vypolnennykh iz profiley iz vysokoprochnoy stali [Stability in Compression of Composite Columns Made of High-tension Steel Profiles]. Inzhenerno stroitel'nyy zhurnal [Engineering Construction Journal]. 2009, no. 3, pp. 42—49.
  26. Smaznov D.N. Konechno-elementnoe modelirovanie stoek zamknutogo secheniya iz kholodnognutykh profiley [Finite Element Modeling of the Stands of Closed Section Made of Cold-formed Profiles]. Nauchno-tekhnicheskie vedomosti Sankt-Peterburgskogo gosudarstvennogo politekhnicheskogo universiteta [Scientific and Research News of Saint Petersburg State Polytechnic University]. 2011, no. 123, pp. 334—337.

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Strength calculation of supportareas in reinforced concrete beam structures

  • Dorofeev Vitaliy Stepanovich - Odessa State Academy of Civil Engineering and Architecture (OGASA) Doctor of Technical Sciences, Professor, Rector, Head, Department of Reinforced Concrete and Masonry Structures, Odessa State Academy of Civil Engineering and Architecture (OGASA), 4 Didrikhsona st., Odessa, 65029, Ukraine; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Karpyuk Vasiliy Mikhaylovich - Odessa State Academy of Civil Engineering and Architecture (OGASA) Doctor of Technical Sciences, Professor, Vice-rector for Research and Education, International Relations and Eurointegration, Department of Reinforced Concrete end Masonry Structures, Odessa State Academy of Civil Engineering and Architecture (OGASA), 4 Didrikhsona st., Odessa, 65029, Ukraine; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Krantovskaya Elena Nikolaevna - Odessa State Academy of Civil Engineering and Architecture (OGASA) Candidate of Technical Sciences, Associate Professor, Professor, Department of Strength of Materials, Odessa State Academy of Civil Engineering and Architecture (OGASA), 4 Didrikhsona st., Odessa, 65029, Ukraine; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Petrov Nikolay Nikolaevich - Odessa State Academy of Civil Engineering and Architecture (OGASA) Candidate of Technical Sciences, Associate Professor, Department of Strength of Materials, Odessa State Academy of Civil Engineering and Architecture (OGASA), 4 Didrikhsona st., Odessa, 65029, Ukraine; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Petrov Aleksey Nikolaevich - Odessa State Academy of Civil Engineering and Architecture (OGASA) Chief of Laboratory, Department of Strength of Materials, Odessa State Academy of Civil Engineering and Architecture (OGASA), 4 Didrikhsona st., Odessa, 65029, Ukraine; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 55-67

The co-authors present the main results of experiments dealing with the study of strength properties of the support areas of common, whole, pre-stressed, eccentrically tensioned and compressed reinforced concrete beams. New destruction patterns of support areas of said structures are identified and their dependence on the appropriate relationship of the studied factors was established. A new general engineering method to calculate the strength of support areas of such elements which is based upon a selection and sequential analysis of possible destruction patterns was developed.

DOI: 10.22227/1997-0935.2013.12.55-67

References
  1. Tur V.V., Molosh V.V. Novye podkhody k raschetu soprotivleniya mestnomu srezu (prodavlivaniyu) ploskikh plit [New Approaches to the Calculation of Reinforced Concrete Structures under the Action of Shearing Forces]. Vestnik BrGTU. Stroitel’stvo i arkhitektura [Proceedings of Belgorod State Technological University Named after V.G. Shukhov. Construction and Architecture]. 2011, no. 2, pp. 18—31.
  2. Gol’shev A.B., Kolchunov V.I., Smolyago G.A. Eksperimental’noe issledovanie zhelezobetonnykh elementov pri sovmestnom deystvii izgibayushchego momenta i poperechnykh sil [Experimental Research of Reinforced Concrete Elements under the Action of Flexion Moment and Transverse Force]. Issledovanie stroitel’nykh konstruktsiy i sooruzheniy [Research of Building Constructions and Structures]. Moscow, 1980, pp. 26—42.
  3. Bambura A.N. K otsenke prochnosti zhelezobetonnykh konstruktsiy na osnove deformatsionnogo podkhoda i real’nykh diagramm deformirovaniya betona i armatury [Estimating the Durability of Reinforced Concrete Structures Basing on Deformational Approach and Real Diagrams of Concrete and Reinforcement]. Beton na rubezhe tret’ego tysyacheletiya: Materialy 1-y Vserossiyskoy konferentsii po problemam betona i zhelezobetona: v 3 kn. [Concrete at the Turn of the Third Millennium: Works of the 1st Russian Conference on the Problems of Concrete and Reinforced Concrete: book 3]. Moscow, MI Publ., 2001, vol. 2, pp. 750—757.
  4. Davydenko A.I., Bambura A.N., Belyaeva S.Yu., Prisyazhnyuk N.N. K raschetu prochnosti secheniy, naklonnykh k prodol’noy osi elementa s ispol’zovaniem polnoy programmy deformirovaniya betona [Estimating Cross Section Durability Oblique to Long Axis of the Element Using Overall Program of Concrete Deformation]. Zb. nauk. prats’ f³zmekh. ³n-tu ³m. G.V. Karpenka NAN Ukra¿ni “Mekhan³ka ³ f³zika ruynuvannya bud³vel’nikh mater³al³v ta konstrukts³y” [Collection of Scientific Papers of the G.V. Karpenko Physical & Mechanical Institute, NASU “Mechanics and Physics of Construction Materials and Structure Destruction]. Lv³v, Kamenyar Publ., 2007, no. 7, pp. 209—216.
  5. V.S. Dorofeev, V.M. Karpyuk, F.R. Karpyuk, O.M. Krantovska, N.M. Yaroshevich Vdoskonaleniy deformats³yniy metod rozrakhunku m³tsnost³ priopornikh d³lyanok neperearmovanikh prog³nnikh zal³zobetonnikh konstrukts³y [Improved Deformation Method of Calculating Strength of Support Areas in not Overreinforced Spanned Reinforced Concrete Structures]. M³zhv³domchiy naukovo-tekhn. zb. nauk. prats’ (bud³vnitstvo) Derzh. nauk. dosl. ³n-t bud. kon-ts³y M³n-va reg³on. rozv. ta bud-va Ukra¿ni [Interdepartmental scientific and technical collection of sc. papers (construction), State scientific research institute of building structures, Ministry of regional development and construction of Ukraine]. Kiev, ND²BK Publ., 2008, no. 70, pp. 103—116.
  6. Dorofeev V.S., Karpyuk V.M., Karp’yuk F.R., Yaroshevich N.M. Deformats³yniy metod rozrakhunku m³tsnost³ priopornikh d³lyanok zal³zobetonnikh konstrukts³y [Deformation Method of Calculating Strength of Support Areas in Reinforced Concrete Structures]. V³snik Odes’ko¿ derzhavno¿ akadem³¿ bud³vnitstva ta arkh³tekturi [Proceedings of Odessa State Academy of Civil Engineering and Architecture]. Odessa, LLC “Zovnishreklamservice” Publ., 2008, no. 31, pp. 141—150.
  7. Doroshkevich L.O., Demchina B.G., Maksimovich S.B., Maksimovich B.Yu. Propozits³¿ do rozrakhunku m³tsnost³ pokhilikh perer³z³v zginal’nikh zal³zobetonnikh element³v (do rozd³lu 4.11.2. DBN V. 2.6.) [Proposals for Strength Calculation of Inclined Shears in Bending Reinforced Concrete Elements (to section 4.11.2. DBN Â.2.6.)]. M³zhv³domchiy naukovo-tekhn. zb. nauk. prats’ Derzh. nauk. dosl. ³n-t bud. kon-ts³y [Interdepartmental Scientific and Technical Collection of Sc. Papers, State Scientific Research Institute of Building Structures]. Kiev, ND²BK Publ., 2007, no. 67, pp. 601—612.
  8. Doroshkevich L.A., Demchina B.G., Maksimovich S.B., Maksimovich B.Yu. Nestandartnyy metod rascheta poperechnoy armatury zhelezobetonnykh izgibaemykh elementov [Non-standard Method of Calculating Transverse Reinforcement of Reinforced Concrete Elements at Bending]. Problemy sovremennogo betona i zhelezobetona: sbornik nauchnykh trudov [Problems of Contemporary Concrete and Reinforced Concrete: Collection of sc. papers]. Minsk, NP OOO “Strikon” Publ., 2007, pp. 164—177.
  9. Zalesov A.S., Klimov Yu.A. Prochnost’ zhelezobetonnykh konstruktsiy pri deystvii poperechnykh sil [Strength of Reinforced Concrete Structures under the Impact of Transverse Forces]. Kiev, Bud³vel’nik Publ., 1989, 105 p.
  10. Klovanich S.F. Mekhanika zhelezobetona v raschetakh konstruktsiy [Method of finite Elements in Mechanics of Reinforced Concrete]. Bud³vel’n³ konstrukts³¿: Zb. nauk. prats’ [Building Structures: Collection of Research Works]. Kiev, ND²BK Publ., 2000, no. 52, pp. 107—115.

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BEDDINGS AND FOUNDATIONS, SUBTERRANEAN STRUCTURES. SOIL MECHANICS

Justification and some features of model development and techniques of monitoring to determine the heat and moisture transfer in soilsin urban areas

  • Kashperyuk Aleksandra Aleksandrovna - Moscow State University of Civil Engineering (MGSU) student, Department of Soils, Foundation Soils and Foundations; +7 (499) 129-18-72, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Potapov Aleksandr Dmitrievich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Head, Department of Engineering Geology and Geoecology, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 68-76

Urban conditions are characterized by geographical and climatic features, geotechnical and hydrogeological conditions. But the main features are architecture, urban planning and engineering infrastructure solutions. This includes roads, water mains, electrical networks, sewage, heating system. Saturation of urban areas by engineering services depends on the size of the city, its population and climatic conditions. Metropoles and cities with long heating season are of particular importance in terms of this issue.The article discusses the need for full-scale investigation of the distribution of temperature field in the soil and underlying sediments during the engineering and environmental surveys in urban environment. In order to study the transfer of heat and moisture in clay soils and to assess its influence on their physical and mechanical properties the authors propose the principles of interaction simulation of the soil and the thermal field. We propose a preliminary methodology for monitoring the temperature and humidity of the soil mass under the influence of heat-conveying communications. Among these communications there are heating, water mains, hot water supply and sewerage.The location of the communications in the near-surface soil mass and the presence of sufficiently high temperature loads from mains are taken into account. To date there is no information on the monitoring of the nature of the distribution of the soils temperature field in urban areas and, accordingly, the spatial variability of the physical and mechanical properties of soils under natural conditions.The reason for it is in short term of geotechnical investigations for specified objects on the stage of project documentation development. Also in the conditions of a city it's almost impossible to place an experimental site with expensive facilities — wells and equipment and provide its safety for a long time (at last 1 year or more).The paper describes the laboratory setup and principles of equipment monitoring systems in field conditions, the basic principles of the experimental work techniques. The theoretical generalization of the results of methodological experiments and conduct large-scale field experiments is a challenge for further research.

DOI: 10.22227/1997-0935.2013.12.68-76

References
  1. Sergeev E.M., Golodkovskaya G.A., Ziangirov R.S., Osipov V.I., Trofimov V.T. Gruntovedenie [Soil Science]. 3rd edition. Moscow, Moscow State University Publ., 1971, 595 p.
  2. SNiP 11-02—96. Inzhenernye izyskaniya dlya stroitel'stva. Osnovnye polozheniya [Engineering Surveys for Construction. Fundamental Principles]. Moscow, Gosstroy Rossii Publ., 1997, 44 p.
  3. Korolev V.A., Fadeeva E.A. Sravnitel'nyy analiz termovlagoperenosa v dispersnykh gruntakh raznogo granulometricheskogo sostava [Comparative Analysis of Heat and Moisture Transfer in Disperse Soils of Different Particle Size Distribution]. Inzhenernaya geologiya [Engineering Geology]. 2012, no. 6, pp. 18—31.
  4. Korolev V.A., Fadeeva E.A., Akhromeeva T.Ya. Zakonomernosti termovlagoperenosa v nenasyshchennykh dispernykh gruntakh [Laws of Heat and Moisture Transfer in Unsaturated Disperse Soils]. Inzhenernaya geologiya [Engineering Geology]. 1990, no. 3, pp. 16—29.
  5. Grifoll J., Gastor J.M., Cohel Y. Non-isothermal Soil Water Transport and Evaporation. Advances in Water Resources. 2005, no. 28, pp. 1254—1266.
  6. Sklovskiy S.A., Pirueva T.G., Kashcheev V.P. Ekonomicheskaya effektivnost' teplovoy infrakrasnoy aeros"emki pri otsenke sostoyaniya podzemnykh teplovykh setey [Cost-effectiveness of the Thermal Infrared Aerial Photography in the Process of Assessment of Underground Heating Systems]. Available at: www.aerogeophysica.com. Date of access: 12.09.2013.
  7. Abramets A.M., Lishtvan I.I., Churaev N.V. Massoperenos v prirodnykh dispersnykh sistemakh [Mass Transfer in Natural Disperse Systems]. Minsk, Navuka i tekhnika Publ., 1992, 288 p.
  8. Lykov A.V. Teplomassoobmen [Heat and Mass Transfer]. Moscow, Energiya Publ., 1972, 562 p.
  9. Kobranova V.N. Petrofizika [Petrophysics]. Moscow, Nedra Publ., 1986, 392 p.
  10. Zlochevskaya R., Korolev V., Divisilova V. Temperaturnye deformatsii v slabykh vodonasyshchennykh glinistykh gruntakh [Temperature Deformations in Weak Water-saturated Clay Soils]. Stroitel'stvo na slabykh vodonasyshchennykh gruntakh [Construction on Weak Water-saturated Soils]. OGU Odessa Publ., 1975, pp. 88—91.
  11. Pashkin E.M., Kagan A.A., Krivonogova N.F. Terminologicheskiy slovar'-spravochnik po inzhenernoy geologii [Terminological Dictionary of Engineering Geology]. Moscow, Universitet Publ., 2011, 950 p.
  12. Trofimov V.T., Korolev V.A., Voznesenskiy E.A., Golodkovskaya G.A., Vasil'chuk Yu.K., Ziangirov R.S.; Trofimova V.T., editor. Gruntovedenie [Soil Science]. 6th edition. Moscow, Nauka Publ., 2005, 1023 p.
  13. Voronkevich S.D., editor. Tekhnicheskaya melioratsiya gruntov [Technical Reclamation of Soils]. Moscow, MGU Publ., 1981, 342 p.
  14. Yurdanov A.P. Termicheskoe uprochnenie gruntov v stroitel'stve [Curing Soils in Construction]. Moscow, Stroyizdat Publ., 1990, 128 p.
  15. Kashperyuk A.A., Kashperyuk P.I., Potapov A.D., Potapov I.A Osobennosti temperaturnogo rezhima gruntov v gorode Moskve i ego vliyanie na inzhenerno-geologicheskie svoystva aktivnoy zony osnovaniy sooruzheniy [Features of Soil Temperature in Moscow and its Impact on the Geotechnical Properties of the Core Ground Structures]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2013, no. 3, pp. 88—97.

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ENGINEERING RESEARCH AND EXAMINATIONOF BUILDINGS. SPECIAL-PURPOSE CONSTRUCTION

Healthmonitoring of building constructions with crack-like defects

  • Korgin Andrey Valentinovich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Supervisor, Scientific and Educational Center of Constructions Investigations and Examinations, Department of Test of Structures, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499) 183-54-29; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Zeyd Kilani Leys Zeydovich - Moscow State University of Civil Engineering (MGSU) Junior Research Worker, Scientific and Research Center of Engineering Investigations and Monitoring of Building Structures, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Ermakov Valentine Alekseevich - Moscow State University of Civil Engineering (MGSU) Junior Research Worker, Scientific and Research Center of Engineering Investigations and Monitoring of Building Structures, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 77-83

This article deals with structural inspection of the flaws caused by such factors as overloading, differential settlements of construction’s foundation, etc. In order to detect them and define their type and size, modern non destructive equipment such as ultrasonic tomography mira1040 and ultrasonic flaw detector A 1212 MASTER are used. Since cracks increase the stress, they are one of most dangerous defects, so some calculation for analyzing stresses distributions near the crack tip and the whole construction stress redistribution caused by cracking are required. Such calculations are rather complicated, that's why the most suitable methods are computational methods.Practical application of FEM is known as finite element analysis (FEA). FEA is applied in engineering as a computational tool for performing engineering analysis. In this research Finite Element Method is used for defining danger level caused by cracking in a construction, whether it is a through crack or a surface crack. Two types of meshing near the crack tip were considered. The first is refined mesh near the crack tip, it is done using finite elements of smaller size therefore increasing the number of elements and calculation time. The second mesh is done by skewing mid side nodes of the first row of elements to the 1/4 point for crack tip, so the elements number does not increase, the same as calculation time, while accuracy of calculating stresses near the crack tip matches the accuracy in case of refined mesh.As a research result this article describes the methods of detecting and analyzing the structures that have been flawed during the building operation.

DOI: 10.22227/1997-0935.2013.12.77-83

References
  1. Posobie po obsledovaniyu stroitel'nykh konstruktsiy zdaniy [Guidebook on Structural Inspection]. AO «TsNIIPROMZDANIY» Publ., Moscow, 2004.
  2. Andrianov A.A. Vliyanie poverkhnostnykh treshchin na prochnost' betonnykh elementov [Influence of Surface Cracks on the Strength of Concrete Elements]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2011, no. 3, pp. 140—142.
  3. Hoegh K., Khazanovich L., Yu H.T. Ultrasonic Tomography Technique for Evaluation of Concrete Pavements. Transportation Research Record: Journal of the Transportation Research Board. 2011, no. 2232, pp. 85—94.
  4. Hoegh K., Khazanovich L., Worel B.J., Yu T. Subsurface Joint Deterioration Detection: A MnROAD Blind Test Comparison of Ultrasound Array Technology with Conventional Nondestructive Methods. Transportation Research Board Annual Meeting 2013. Available at: http://docs.trb.org/prp/13-2048.pdf. Date of access 10.10.2013.
  5. Michaux C., Grill M. NDT 3D Tomographic Testing Cases on Concrete and National Heritage Buildings. Available at: http://www.germann.org/Publications/Sevilla/NDT%203D%20Tomography,%20Michaux%20and%20Grill.pdf. Date of access: 10.10.2013.
  6. Korgin A.V., Ermakov V.A. Avtomatizirovannaya aktualizatsiya MKE-modeli sooruzheniya v khode monitoringa [Automated Updating of a FEM-model of a Structure in the Process of Monitoring]. Mekhanizatsiya stroitel'stva [Mechanization of Construction]. 2011, no. 7, pp. 2—4.
  7. Korgin A.V., Zakharchenko M.A., Ermakov V.A. Metodika aktualizatsii raschetnoy skhemy sooruzheniya, podvergaemogo protsedure monitoringa [Methods of Updating the Calculation Model of a Construction under Monitoring]. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering]. 2011, no. 3, pp. 28—31.
  8. Basko E.M., Afonin A.S. O kriteriyakh otsenki soprotivleniya khrupkomu razrusheniyu elementov stal'nykh konstruktsiy s uchetom treshchinopodobnykh defektov [On the Evaluation Criteria of Brittle Fracture Resistance of the Elements of Steel Structures with Account for Crack-like Defects]. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering]. 2010, ¹ 9, pp. 41—43.
  9. Silant'ev A.S. Raschet prochnosti naklonnykh secheniy izgibaemykh zhelezobetonnykh elementov metodom konechnykh elementov v KE-kompleksakh Ansys i Abaqus [Strength Calculation of Oblique Sections of Bending Reinforced Concrete Elements by the FEM in Ansys i Abaqus ]. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering]. 2012, no. 2, pp. 71—74.
  10. Robert Ravi S., Prince Arulraj G. Finite Element Modeling on Behavior of Reinforced Concrete Beam Column Joints Retrofitted with Carbon Fiber Reinforced Polymer Sheets. International Journal of Civil and Structural Engineering. 2010, vol. 1, no. 3, pp. 576—582. Available at: http://www.ipublishing.co.in/ijcserarticles/ten/articles/volone/EIJCSE2027.pdf. Date of Access: 10.10.2013.

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Modern state of Shukhov's translucent structures

  • Koryakov Aleksandr Sergeevich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Department of Metal Structures, senior research worker, Scientific and Research Laboratory on Investigating the Actual Operation of Building Structures and Constructions, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Evstaf'eva Elizaveta Borisovna - Moscow State University of Civil Engineering (MGSU) Researcher worker, Scientific and Research Laboratory on Investigating the Actual Operation of Building Structures and Constructions, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 84-92

The article focuses on such buildings as Moscow Central Post Office, State Museum of Fine Arts and GUM. All these buildings were constructed by famous Russian engineer Shukhov V.G. His 160th anniversary is celebrated in 2013.The skylight rectangular in the plan is a covering of General hall in Moscow Central Post Office. It has 3 tiers of glazing. The framework of this tier is a frame structure, which is based on the circumference on the cantilever trusses and, in addition, is hanging on the main trusses of the marquise. The bearing construction of the external lantern consists of ordinary, diagonal and bracing riveted trusses.The covering construction of State Museum of Fine Arts is a combined system, which consists of 2 types of metal trusses. The trusses located under the lamp are of polygonal shape and are bearing constructions for the attic floor, lower and middle glazing contours, as well as for lantern trusses. Lantern trusses of triangular shape serve for attachment of the external glazing contour and areas of metal roofing on the ridge, in the support zones and in the valley.Trading house of GUM has arch translucent covering. Bearing constructions of these coverings are roof arches of circular shape with cross shaped tie beams. Roof boarding was set on the booms made of rolled tees for glazing attachment. Lantern trusses have triangular shape and serve for attachment of an external contour glazing and plots metal roofing on the ridge, in the support zones and in the valley.The article presents the results of examinations, which have been performed by different organizations for the last 30 years.All these buildings are monuments of cultural heritage and they need constant supervision. The covering construction of Moscow Central Post Office needs repair and reconstruction.

DOI: 10.22227/1997-0935.2013.12.84-92

References
  1. Kovel'man G.M. Tvorchestvo pochetnogo akademika inzhenera V.G. Shukhova [Creative Work of Honorable Member of the Academy, an Engineer V.G. Shukhov]. Moscow, Gosstroyizdat Publ., 1961, 363 p.
  2. Shukhov V.G. Izbrannye trudy. Stroitel'naya mekhanika [Selected Works. Structural Mechanics]. Editor A.Yu. Ishlinskogo. Moscow, Nauka Publ., 1977, 193 p.
  3. Otsenochnoe obsledovanie i tekhnicheskoe zaklyuchenie o vozmozhnosti sokhraneniya i ekspluatatsii nesushchikh metallicheskikh konstruktsiy svetovykh pokrytiy liniy GUMa [Evaluative Examination and Technical Estimation on the Possibility of Maintaining and Operation of the Bearing Metallic Structures of GUM Translucent Coverings]. TsNIIPSK Publ. D 227-91, Moscow, 1991.
  4. Mikhalev N.Ya. O sokhranenii unikal'nykh stal'nykh konstruktsiy svetoprozrachnogo pokrytiya Glavpochtamta v gorode Moskve [On Preserving Unique Steel Structures of Translucent Covering of the Moscow Central Post Office]. Nauchno-tekhnicheskiy vestnik Povolzh'ya [Scientific and Technical Proceedings of the Volga Region]. 2012, no. 6, pp. 315—318.
  5. Zaklyuchenie o tekhnicheskom sostoyanii metallokonstruktsiy shatrovogo fonarya zdaniya Mospochtamta [Report on the Technical State of the Metal Structures of Tent Lantern of Moscow Central Post Office]. GUP TsNIISK Publ., Moscow, 2001.
  6. Tekhnicheskiy otchet po teme: «Inzhenernoe obsledovanie stroitel'nykh konstruktsiy svetovogo fonarya zdaniya «Moskovskogo pochtamta» po adresu: ul. Myasnitskaya, d. 26a, str. 1» [Technical Report on the Topic: "Engineering Examination of Building Structures of the Skylight of Moscow Central Post Office Located at 26a-1 Myasnitskaya st.]. Pressmark ¹ 281/03. MGSU Publ., 2003.
  7. Obsledovanie metallokonstruktsiy shatrovogo fonarya Moskovskogo pochtamta i vydacha zaklyucheniya o vozmozhnosti ikh dal'neyshey ekspluatatsii [Examination of the Metal Structures of the Tent Lantern of Moscow Central Post Office and Approval of their Further Operation]. D 11-627, ZAO TsNIIPSK Publ., 2007.
  8. Tekhnicheskiy otchet «Naturnoe vizual'noe obsledovanie Glavpochtamta» [Technical Report "On-site Visual Inspection of Moscow Central Post Office"]. D M10-09-34, Kompaniya MAKOM Publ., Moscow, 2010.
  9. Rezul'taty inzhenerno-tekhnicheskogo obsledovaniya stroitel'nykh konstruktsiy pamyatnika arkhitektury zdaniya GMII im. A.S. Pushkina po adresu: ul. Volkhonka, 12. «Metallokonstruktsii krovli» [The Results of Engineering and Technical Examination of the Building Structures of a Monument of Architecture, the Building of Pushkin State Museum of Fine Arts Located at 12 Volkhonka st. "Steelwork of Roofing"]. Moscow State Mining University, ZAO «Triada — Kholding» Publ., 2004, vol. 1, book 1.
  10. Arkhitekturno-arkheologicheskie obmery zdaniya Muzeya izobrazitel'nykh iskusstv im. A.S. Pushkina [Architectural and Archeological Surveys of the Building of Pushkin State Museum of Fine Arts]. Tsentral'nye nauchno-restavratsionnye masterskie. Arkhitekturno-planirovochnaya masterskaya no. 2 [Central Scientific and Reconstruction Workrooms. Architectural Planning Workroom no. 2]. Vol. 1—4, 2004.
  11. Tekhnicheskiy otchet. Opredelenie tekhnicheskogo sostoyaniya nesushchikh i ograzhdayushchikh konstruktsiy, kategorii tekhnicheskogo sostoyaniya i velichin predel'nykh dopolnitel'nykh deformatsiy zdaniy, popadayushchikh v zonu vliyaniya stroitel'stva ob"ekta ¹ 4 «Kompleksnaya rekonstruktsiya, restavratsiya i prisposoblenie domovladeniya 3/5 (g. Moskva, M. Znamenskiy per.) pod Kartinnuyu galereyu iskusstva starykh masterov». Kn. 3. Zdanie po adresu: Moskva, ul. Volkhonka, d. 12, str. 1. D. m 10-11-48 [Technical Report. Determining the Technical State of Bearing and Enclosing Strictures, Categories of Technical State and Critical Redundant Deformation Values that Fall within the Influence of the Construction of Object # 4 'Complex Reconstruction, Restoring and Adjustment of the Housing Estate 3/5 (Moscow, Znamenskiy pereulok) for an Art Gallery of the Old Masters Art". Book 3. Building Located at 12-1, Volkhonka st., Moscow. D. m 10-11-48]. Moscow, Kompaniya MAKOM Publ., 2011.

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TECHNOLOGY OF CONSTRUCTION PROCEDURES. MECHANISMS AND EQUIPMENT

Threading in heat resistant cast stainless steel DIN 1.4848for turbocharger housings

  • Heiler Roland - Hochschule für Technik und Wirtschaft (HTW-Berlin) Doctor of Engineering, Professor, Hochschule für Technik und Wirtschaft (HTW-Berlin), Treskowallee 810318, Berlin, Germany; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Zeilmann Rodrigo Panosso - Universidade de Caxias do Sul (UCS) Doctor of Engineering, Professor, Universidade de Caxias do Sul (UCS), Rua Francisco Getúlio Vargas, 1130, 95070-560, Caxias do Sul, RS, Brazil.
  • Estel Göran - Hochschule fürTechnik und Wirtschaft (HTW-Berlin) Master of Engineering, Hochschule fürTechnik und Wirtschaft (HTW-Berlin), Treskowallee 810318, Berlin, Germany; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Cordes Oliver - Hochschule für Technik und Wirtschaft (HTW-Berlin) Master of Engineering, Hochschule für Technik und Wirtschaft (HTW-Berlin), Treskowallee 810318, Berlin, Germany; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 93-100

Urbochargers are important components to minimize the petrol consumption of modern gasoline engines. The temperature in the turbocharger housings can reach until1.050 °C. Due to this reason, high heat resistant stainless steel, like the material DIN1.4848 with a high quantity of nickel (up to 25 %) and chrome (up to 20 %) is used in this application. During metal cutting operations the temperature at the cutting edge will increase due to the high quantity of nickel and the abrasive wear will be created by the chrome carbides within the cast material. The material hardness can increase by the machining process. Drilling and threading are one of the most critical machining operations in this material, because a huge frication area exists between the material and the tool. This provokes a high friction and the possibility of built-up-edge at the cutting edge which provides the rapid wear of the tool. In this part of the development project the tool life of different threading tools was analyzed. Taps in HSS-Co-PM and solid carbide were available for the tool life tests. The possibility to use the cold forming technology for threading was also analyzed. The strength of the internal threads was tested with pull out tests according DIN 898-2.

DOI: 10.22227/1997-0935.2013.12.93-100

References
  1. Albrecht B. Abgasturbolader von Bosch Mahle Turbo Systems. Pressemitteilung der Bosch Mahle Turbo Systems. Frankfurt a. M., September 2009.
  2. Cordes Oliver. Untersuchungen zur Innengewindefertigung in hitzebe-st?ndigem Edelstahlguss f?r Turboladergeh?use. Master-thesis, HTW-Berlin 2012. Zentrale f?r Gussverwendung-ZGV, Hrsg. Feingie?en, Herstellung, Eigenschaften, Anwendungen. Konstruieren + Gie?en. D?sseldorf, Deutscher Gie?ereiverband, 2008, no. 33, H.1.
  3. DIN898-2. Mechanische Eigenschaften von Verbindungselementen aus Kohlenstoffstahl und legiertem Stahl — Teil 2: Muttern mit festgelegten Pr?fkr?ften — Regelgewinde (ISO/DIS 898-2:2009). Berlin, Deutsches Institut f?r Normung e.V., 2010.
  4. Schmier M. Randzonenver?nderungen beim Bohren und ihre Auswirkungen auf Folgebearbeitungsverfahren. Dissertation Universit?t Kassel, 2004.

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Influence of ambient light on slopeson the performance properties of geosynthetic gridsbased on polyamide-6

  • Darchiya Valentina Ivanovna - Moscow State University of Civil Engineering (MGSU) Senior Lecturer, Department of General Chemistry, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Pashkevich Stanislav Aleksandrovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, head, Laboratory of Climatic Tests, Scientific and Research Institute of Construction Materials and Technologies, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (495) 656-14-66; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Pulyaev Ivan Sergeevich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, associate Professor, Department of construction materials, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Pustovgar Andrey Petrovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Director, Research and Scientific Institute for Construction Materials and Technologies, Professor, Department of Construction of Nuclear Installations, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Chernyshev Sergey Nikolaevich - Moscow State University of Civil Engineering (MGSU) Doctor of Geological and Mineralogical Sciences, Professor, Department of Engineering Geology and Geoecology, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499) 183-83-47; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 101-108

In the article the authors present the data of laboratory researches of geosynthetic grid samples based on polyamide-6, taken from the embankment slopes constructions of different light after 9 years of operation. The samples of geosynthetic grid EnkamatS20 were selected from the ground constructions of Svyataya Kanavka (Holy Groove) in the South of the Nizhny Novgorod region, the village of Diveevo, constructed in 2003 for the erosion preventive fixing of the slopes of the ditch and a shaft. The village of Diveevo is situated in a zone of clearly expressed continental climate, characterized by hot summers and cold winters. In the process of exploitation of ground structures in the period from 2003 to 2012, there was a decline in the protective properties of the lawn and turf, which was reflected in violation of the integrity of cover, including on the slopes of the ditch and of a shaft of a southern exposure, which are not sheltered from the direct streams of the sun. The similar situation was observed on deeply shaded slopes of a Northern exposure covered with trees and shrubs, as well as on the slopes of the bottom of the ditch, where the sun streams didn’t reach. From these mostly unprotected places in 2012 samples of geosynthetic grid Enkamat-S20 were selected in order to define the influence of the lighting conditions of slopes on the operational properties of Enkamat-S20 for 9 years of operation. According to the obtained data the residual tensile strength for each series of samples of geosynthetic grid Enkamat-S20 was identified. The influence of light intensity on the operational properties was evaluated by the highest residual tensile strength of the investigated samples compared to the passport strength value of geosynthetic grid Enkamat-S20. As a result of the research it was established, that the deeply shaded areas for 9 years of operation the reduction of tensile strength for samples of geosynthetic grid Enkamat-S20 amounted to 4.5 % and 6 % respectively. In the intensively lighted area the strength loss amounted to 39.5 % due to destruction of synthetic fiber. In the conditions of partial shadow the strength loss amounted to 25 %. As a result of the studies the authors offer the data on the lighting conditions impact on the operational properties of geosynthetic grid on the example of Enkamat-S20 upon condition disturbing the integrity of the lawn and turf, which are a natural protective shield.

DOI: 10.22227/1997-0935.2013.12.101-108

References
  1. Afonina O.V. Opyt primeneniya geotekstil'nykh poloten geokom proizvodstva OAO «KOMITEKS» pri stroitel'stve dorog [Experience of the Application of Geotextile Paintings GEOKOMKOMITEX JSC in the Construction of Roads]. Primenenie geomaterialov pri stroitel'stve i rekonstruktsii transportnykh ob"ektov: Materialy II Mezhdunarodnoy nauchno-tekhnicheskoy konferentsii [Proceedings of 2nd International Scientific and Technical Conference «Application of Geomaterials in the Process of Construction and Reconstruction of Transport Facilities»]. Saint-Petersburg, S-Print Publ., 2002, p. 84—87.
  2. Ganchits V.V. Vliyanie ekspluatatsionnykh i tekhnologicheskikh vozdeystviy na sostoyanie georeshetok, ulozhennykh v put' [Influence of Operational and Technological Impacts on the State of Geogrids, Layed in a Path]. Primenenie geomaterialov pri stroitel'stve i rekonstruktsii transportnykh ob"ektov: Materialy II Mezhdunarodnoy nauchno-tekhnicheskoy konferentsii [Proceedings of 2nd International Scientific and Technical Conference «Application of Geomaterials in the Process of Construction and Reconstruction of Transport Facilities»]. Saint-Petersburg, S-Print Publ., 2002, pp. 23—25.
  3. Gritsyk V.I. Geomaterialy, geokonstruktsii v ob"ektakh zemlyanogo polotna [Geomaterials, Geoconstruction in the Objects of the Roadbed]. Primenenie geomaterialov pri stroitel'stve i rekonstruktsii transportnykh ob"ektov: Materialy II Mezhdunarodnoy nauchno-tekhnicheskoy konferentsii [Proceedings of 2nd International Scientific and Technical Conference «Application of Geomaterials in the Process of Construction and Reconstruction of Transport Facilities»]. Saint-Petersburg, S-Print Publ., 2002, p. 26—28.
  4. Shcherbina E.V., Telichenko V.I., Alekseev A.A., Smutchuk B.V., Slepnev P.A Geosinteticheskie materialy: klassifikatsiya, svoystva, oblast' primeneniya [Geosynthetic materials: classification, properties, application]. Izvestiya vuzov. Stroitel'stvo [News of the Institutions of Higher Education. Construction]. 2004, no. 5, pp. 97—102.
  5. Shcherbina E.V. Geosinteticheskie materialy v stroitel'stve [Geosynthetic Materials in the Construction]. Moscow, ASV Publ., 2004, 111 p.
  6. Gartung E., Zanziger H., Robert M. Koerner. Clay Geosynthetic Barriers. A.A. Balkema Pablishers, Lisse, Abingdon, Exton, Tokyo, 2002, 399 p.
  7. Estermann U., Blaesing P., Oester R. Bewernung von Eisenbahndammen mit Geokunst stiffen auf der ABS Berlin. Hamburg. 4. Informations- und Vortragsveranstaltung uber “Kunststoffe in Geotechnik”. Muenchen, 1995, pp. 160—166.
  8. Schade H.W., Fischer S. Gruendungen von Strassendaemen auf einem Moor mit Hilfe von Geotextilien. 6. Informations- und Vortragsveranstaltung uber “Kunststoffe in Geotechnik”. Muenchen, 1999, pp. 59—64.
  9. Scherbina E. Bruekenrampe aus bewehrter Erde in Moskau. 6. Informations- und Vortragsveranstaltung uber “Kunststoffe in Geotechnik”. Muenchen, 1999, pp. 65—70.
  10. Zanzinger H., Aleksiew N. Long-term Internal Shear on Clay Geosynthetic Barriers. Clay geosynthetic Barriers. A.A. Balkema Pablishers, Lisse, Abingdon, Exton, Tokyo, 2002, pp. 111—117.
  11. Emanuel' N.M., Dukachenko A.L. Khimicheskaya fizika stareniya i stabilizatsii polimerov [Chemical Physics of Aging and Stabilization of Polymetric Compounds]. Ìoscow, Nauka Publ., 1982, 360 p.
  12. Chernyshev S.N. Svyataya Bogorodichnaya Kanavka v Diveeve. Istoriya i vossozdanie [The Holy Virgin Groove in Diveevo. History and Recreation]. Mir Bozhiy [World of God]. 2009, no. 13, pp. 108—112.
  13. Chernyshev S.N., Shcherbina E.V. Svyataya Bogorodichnaya Kanavka: prirodnye usloviya i tekhnicheskie resheniya po vossozdaniyu [The Holy Virgin Groove: Natural Environment and Technical Decisions on Recreation]. Prirodnye usloviya stroitel'stva i sokhraneniya khramov Pravoslavnoy Rusi: Trudy 2-go Mezhdunarodnogo nauchno-prakticheskogo simpoziuma [Proceedings of the 2nd International Scientific and Practical Symposium «Natural Environment of Construction and Reconstruction of the Churches of Orthodox Russia”]. Sergiev Posad, 2005, pp. 247—253.

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Composition and structure of the stone composite gypsumbinder with additives of lime and the ground haydite dust

  • Khaliullin Marat Il'surovich - Kazan State University of Architecture and Engineering (KGASU) Candidate of Technical Sciences, Associate Professor, Director, Department is Scientific and Research Activity, Kazan State University of Architecture and Engineering (KGASU), 1 Zelenaya St., Kazan, 420043, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Rakhimov Ravil' Zufarovich - Kazan State University of Architecture and Engineering (KGASU) Doctor of Technical Sciences, Professor, Corresponding Member, Kazan State University of Architecture and Engineering (KGASU), 1 Zelenaya St., Kazan, 420043, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Gaifullin Al'bert Rinatovich - Kazan State University of Architecture and Engineering (KGASU) Candidate of Technical Sciences, Assistant, Department of Building Materials, Kazan State University of Architecture and Engineering (KGASU), 1 Zelenaya St., Kazan, 420043, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 109-117

In the last decades in a number of countries burned clays have been used as a pozzolanic additives to the concrete, which is connected with their universal distribution and cost savings due to reduction of long-distance transportation of the additives. The haydite dust is the co-product of the haydite gravel. At every enterprise of haydite gravel about 7-8 tons of haydite dust are daily formed. The haydite dust represents thermally activated clay. Its structure includes a certain amount of non-dehydrated clay and dehydrated clay minerals with crystal lattices of different levels of defects. Previously the authors described the compositions of cost-effective composite gypsum binding materials produced with complex mineral additive, including lime, a ground haudite dust and the superplasticizer possessing the durability at compression up to 27 MPa and coefficient of softening up to 0,78. In this paper the authors investigated the composition and structure of artificial stone on the basis of the developed composite gypsum binder. As a basic binder building plaster is used. In the research work the X-ray phase analysis, the differential thermal analysis, electron microscopy and the standard methods of research of concrete porosity were used. The introduction in composition of gypsum binder with a complex mineral additive allows to receive an artificial stone with more dense and finegrained structure, durability and water resistance in comparison with original binder without any additive. The content of ettringite in the course of hardening does not increase. The formation of low based low-main hydrosilicates of the calcium filling steam structure of a gypsum stone, forming additional contacts between the gypsum crystals, raising stone water resistance is established.

DOI: 10.22227/1997-0935.2013.12.109-117

References
  1. Vitruviy M. Desyat' knig ob arkhitekture [Ten Books on Architecture]. Moscow, Academia Arhitektury Publ., 1936, 331 p.
  2. Ramachandran V.S., Fel'dman R.F., Kollepardi M., Mal'khotra V.M., Dolch V.L., Mekhta P.K., Okhama I., Ratinov V.B., Rozenberg T.I., Meylvaganam N.P., Ramachandran V. Dobavki k betonam: spravochnoe posobie [Additives to the Concrete: Handbook]. Moscow, Stroyizdat Publ., 1988, 575 p.
  3. Habert G., Choupay N., Escadeillas G., Guillaume D., Montel J.M. Clay Content of Argillites: Influence on Cement Based Mortars. Applied Clay Science. 2009, vol. 43, no. 3—4, pp. 322—330.
  4. Fernandez R., Martirena F., Scrivener K.L. The Origin of the Pozzolanic Activity of Calcined Clay Minerals: A Comparison between Kaolinite, Illite and Montmorillonite. Cement and Concrete Research. 2011, vol., 41, no. 1, pp. 113—122.
  5. Tironi A., Tpecca M., Sian A., Irassar E.F. Termicheskaya aktivatsiya kaolinitovykh glin [Thermal Activation of Kaolinite Clays]. Tsement i ego primenenie [Cement and its Applications]. 2012, no 12, pp. 145—148.
  6. Gorin V.M., Tokareva S.A., Sukhov V.Yu., Nekhaev P.F., Avakova V.D., Romanov N.M. Rasshirenie oblastey primeneniya keramzitovogo graviya [Extension of the Scope of Expanded Haudite Gravel]. Stroitel'nye materialy [Building materials]. 2003, no. 11, pp. 19—21.
  7. Bazhenov Yu.M., Korovyakov V.F. Universal'nye organomineral'nye modifikatory gipsovykh vyazhushchikh veshchestv [Universal Organic-mineral Modifiers for Gypsum Binding Agents]. Stroitelnye materialy, oborudovanie, tehnologii XXI veka [Construction Materials, Equipment, Technologies of 21st Century]. 1999, no. 7—8, pp. 18—19.
  8. Pogorelov S.A. Ekologicheskie i tekhnologicheskie aspekty kompleksnogo ispol'zovaniya tekhnogennogo syr'ya [Environmental and Technological Aspects of the Use of Technogenic Raw Materials]. Stroitelnye materialy, oborudovanie, tehnologii XXI veka [Construction Materials, Equipment, Technologies of 21st Century]. 2004, no. 10, pp. 10—11.
  9. Khaliullin M.I., Rakhimov R.Z., Gayfullin A.R. Composite Gypsum Bindings with Increased Water Resistance, Containing Claydite Dust as an Active Mineral Additive. Weimarer Gipstagung, Tagungsbericht. F.A. Figner — Institut fur Baustoffkunde, Bauhaus — Universitat Weimar, Weimar, 2011, pp. 445—450.
  10. Khaliullin M.I., Rakhimov R.Z., Gayfullin A.R. Composite Gypsum Binders of Higher Water Resistance with an Active Mineral Additive-claydite Dust. Non-Traditional Cement and Concrete, IV Proceedings of the International Conference. Brno University of Technology & ?PSV, a.s., Uhersk? Ostroh, Brno, June 27—30, 2011, pp. 331—337.

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SAFETY OF BUILDING SYSTEMS. ECOLOGICAL PROBLEMS OF CONSTRUCTION PROJECTS.GEOECOLOGY

Evaluation system of ecological safety on life cycle of inorganic fibrousheat-insulating materials

  • Zhuk Petr Mikhaylovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Associate Professor, Department of Engineering Geology and Geoecology, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 118-122

In the article the author develops uniform integrated criterion of fibrous heat-insulating materials assessment, which reflects all the aspects of their life cycle. When developing such criterion both computational and expert methods of assessment are used. The uniform ecological safety assessment system will allow to carry out assessment of materials of heat-insulating application adequately beginning with the scientific point of view at all levels and stages of the life cycle from specifying competitive strength of the uppliers in the market and to an ecological situation in the given area.When developing the uniform criterion the author uses the approach offered by Charles A.S. Hall (State University of New York) for efficiency assessment of fuel production (energy return on investment — EROI). The offered criterion provides the analysis of thermal energy quantity, which allows to keep a heat-insulating material throughout the year, the energy referred to expenses on life cycle of a considered heater. As a methodical base for calculations the methods of the theory of risks can be used (Elmeri, Fine-Kinney methods, etc.), an important role is played by quality management methods (for example, creation of charts of Walter Andrew Shewhart). Besides, there already exist acknowledged methods of building materials assessment: methods of parameters grid generation, ecological sieves, ecological trace, backpacks with impacts on environment, etc. The most important factor of the analysis of an offered indicator is discounting of the indicators connected with economy or expenses of energy resources as it allows to increase objectivity of an assessment. Besides, the article offers the way of analyzing emissions of greenhouse gases throughout life cycle of heat-insulating materials. In particular, it is offered to count the decrease of greenhouse gases emissions by reducingenergy consumption taking account for the number of emissions of COlife cycle.on the whole

DOI: 10.22227/1997-0935.2013.12.118-122

References
  1. Buschmann R. Umweltvertr?glichkeit von Geb?uded?mmstoffen. Schleswig-Holstein, Ministerium f?r Umwelt, Natur und Forsten, Kiel, 2003.
  2. Luenser H. Auswahl und Bewertung von D?mmstoffen. Wirtschaftsministerium Baden-W?rttemberg, Referat 64, Stuttgart.
  3. Ovcharenko E.G. Tendentsii v razvitii proizvodstva utepliteley v Rossii [Tendencies of the Development of Heaters Production in Russia]. Uralstroyinfo Publ., Moscow, 2002. Available at: www.uralstroyinfo.ru. Date of access: 31.08.13.
  4. Rumyantsev B.M., Zhukov A.D. Printsipy sozdaniya novykh stroitel'nykh materialov [Principles New Building Materials Development] Internet-vestnik VolgGASU. Seriya Politematicheskaya [Internet Bulletin of Volgograd State University of Architecture and Civil Engineering. Series: Polythematic]. 2012, vol. 3 (23). Available at: http://www.vestnik.vgasu.ru.
  5. Buyantuev S.L., Damdinova D.R., Sul'timova V.D. Tekhnologiya polucheniya effektivnoy bazal'tovoy teploizolyatsii s pomoshch'yu nizkotemperaturnoy plazmy [Technology of Producing Effective Basalt Thermal Insulation by Means of Low-temperature Plasma]. Stroitel'nye materialy, oborudovanie, tekhnologii XXI veka [Construction Materials, Equipment, Technologies of the 21st Century]. 2006, no. 12, pp. 30—31.
  6. Hall C.A. Introduction to Special Issue on New Studies in EROI (Energy Return on Investment). Sustainability 2011, 3 (10), pp. 1773—1777. Available at: www.mdpi.com/2071-1050/3/10/1773.
  7. Inmen M. Istinnaya tsena iskopaemogo topliva [True Price of Fossil Fuel]. V mire nauki [The World of Science]. I.E. Satsevich, Translator. 2013, no. 6, pp. 68—71.

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Culture in ecology — a part of the noosphere theory, the ideological base in reconstruction

  • Chernyshev Sergey Nikolaevich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Geologo-Mineralogical Sciences, Professor, Department of Engineering Geology and Geoecology, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 123-130

Culture in ecology is a research area founded in Russia by Dmitry Sergeevich Likhachev in 1979. Like any science, it has its target of research (World Culture), its purpose — the preservation of national cultures, its own generalization method related to the method of ecology. Culture in ecology is a scientific discipline. It is not a part of the environment, as it has a separate subject of study. It can be considered a part of the noosphere theory. Culture as a whole is vast human creation, which includes creative, handicraft and other skills related to agriculture, development of the planet's resources, education and training of children, the highest ideals of human being, engineering, arts, protecting the environment and cultural heritage.Culture is a means of managing material noospheric objects. Culture ecology studies the creativity, engineering, and economic interactions in the society and their impact on the human environment, because it is closely connected to ecology. Culture ecology should be developed in order to manage the biosphere or even the noosphere as rationally constructed megasystem consisting of natural and man-made objects. Noosphere as an ideal state of the environment does not exist in reality. It is far from predation and barbarism in terms of using natural resources. Today the principles of culture ecology are based on the development of projects of recreating historic landscapes, historic buildings and structures for the purposes of modern society. In the report the author focuses on two examples of such work: the Cathedral of Christ the Savior in Moscow and the Frauenkirche in Dresden. They are the examples of constructions corresponding to the requirements for ecological facilities and cultural experience. They should be considered the islands of noosphere in the modern imperfect world and science. The combination of old and new is a tricky thing. It is easy to destroy the balance between old guardian of the spirit, and new functioning elements of the statutes for the modern society needs. It is easy to upset the balance and thus give rise for objections from one side or another. The debates on inclusion old and new parts should be going in the process of rebuilding objects in new social environment.

DOI: 10.22227/1997-0935.2013.12.123-130

References
  1. Vernadskiy V.I. Neskol'ko slov o noosfere [A Few Words on the Noosphere]. Uspekhi biologii [Progress of Biology]. 1944, vol. 18, no. 2, pp. 113—120.
  2. Potapov A.D., Ryabova S.S. Sovremennyy podkhod k kontseptsii noosfery i ee teoreticheskomu razvitiyu [A Modern Approach to the Concept of the Noosphere and Development of its Theory]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2013, no. 6, pp. 139—148.
  3. Trofimov V.T., Korolev V.A. Geologicheskaya sreda kak noosfernaya kategoriya [Geological Environment as a Noospheric Category]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2013, no. 11, pp. 188—193.
  4. Izbornik (Sbornik proizvedeniy literatury Drevney Rusi) [Collected Works of Ancient Russian Literature]. Content by Dmitrieva L.A., Likhacheva D.S. Moscow, Hudozhestvennaya Literatura Publ., 1969, pp. 326—327, 738—739.
  5. Chernyshev S.N. Istoricheskiy vzglyad na otechestvennuyu ekologicheskuyu kul'turu [A Historical Look at the Domestic Ecological Culture]. Velikoross Publ., 2013, no. 1 (7), pp. 15—31.
  6. Likhachev D.S. Ekologiya kul'tury [Cultural Ecology]. Moscow, 1979, no. 7, pp. 173—179.
  7. Chernyshev S.N. Ekologiya kul'tury i sovremennye zadachi sokhraneniya arkhitekturnykh kompleksov [Ecology of Culture and Modern Problems of Preservation of Architectural Complexes]. Prirodnye usloviya stroitel'stva i sokhraneniya khramov pravoslavnoy Rusi: trudy 4-go Mezhdunarodnogo nauchno-prakticheskogo. simpoziuma [Proceedings of the 4th International Scientific and Practical Symposium "Natural Conditions for the Construction and Preservation of the Orthodox Churches of Russia" ]. Sergiev Posad, 2012, pp. 406—413.
  8. Vedenin Yu.A. Formirovanie novogo kul'turno-ekologicheskogo podkhoda k sokhraneniyu naslediya [Formation of a New Cultural and Ecological Approach to the Heritage Conservation]. Ekologiya kul'tury: al'manakh [Almanac "Ecology of Culture"]. Russian Research Institute of Cultural Heritage named after D.S. Likhachev, Moscow, 2000, pp. 76—84.
  9. Volker Stoll, Carsten Leibenart. Geotechnische und Hydrogeologische Arbeiten fur den Wiederaufbau der Frauenkirche Dresden und deren Umfeld. Prirodnye usloviya stroitel'stva i sokhraneniya khramov pravoslavnoy Rusi: sbornik tezisov 5-go Mezhdunarodnogo nauchno-prakticheskogo simpoziuma [Collection of Abstracts of the 5th International Scientific and Practical Symposium "Natural Conditions for the Construction and Preservation of the Orthodox Churches of Russia"]. Nizhniy Novgorod, 2013, pp. 41—49.

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Russian energy infrastructure: present stateand prospects of development

  • Shilova Lyubov’ Andreevna - Russian Energy Agency of the Ministry of Energy of the Russian Federation Chief Specialist, Agency of Energy Security Analysis of the Department of Energy Security and Special Programs, Russian Energy Agency of the Ministry of Energy of the Russian Federation, 40/2 Shchepkina street, Moscow, 129110, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Zhukovskiy Oleg Evgen’evich - Russian Energy Agency of the Ministry of Energy of the Russian Federation Candidate of Military Sciences, Professor, Russian Energy Agency of the Ministry of Energy of the Russian Federation, 40-1 Shchepkina st., 129110, Moscow; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 131-138

The authors analyzed energy infrastructure in Russia in 2012 and main directions of its development. They collected information about planning documents, which helped to develop the energy system and its capacity. They show the basic principles of construction, commissioning, operation and decommissioning of the network infrastructure and the changes in the installed capacity.At the same time, the development of energy infrastructure in Russia is carried out with the aim of improving the Unified Energy System of Russia.The main objectives of the Unified Energy System of Russia in 2012 were to ensure safe operation, coordinated, planned construction and commissioning, decommissioning of network infrastructure and generation capacity.Construction, commissioning and decommissioning of network infrastructure and generation capacity were carried out based on the following principles:optimization of the structure of electric power facilities; advanced growth of network infrastructure compared to the development of generation, taking into account the principle of reasonable redundancy;synchronous development of large strategic power plants, including electrical networks and distributed generation;preservation of slight advance in the rate of development of coal generation as compared with the gas generation;«forced» modernization;transition from the separate production of electricity, heat and cold to their predominantly cogeneration and trigeneration;innovative development. Identifying promising technologies and creating demonstration facilities. Development of the domestic power.At the same time, the principle of "forced" modernization obviously showed that the former model of "energy superpower", which was created using raw Soviet legacy in terms of the price boom has exhausted itself. Therefore forced modernization is inevitable. The most obvious is the transition from separate production of electricity, heat and cold to their predominantly cogeneration and trigeneration

DOI: 10.22227/1997-0935.2013.12.131-138

References
  1. Ivanter V.V. V.V., Ksenofontov M.Yu. Kontseptsiya konstruktivnogo prognoza rosta rossiyskoy ekonomiki v dolgosrochnoy perspektive [The Concept of Constructive Forecast of the Russian Economy Growth in the Long-term Perspective]. Problemy prognozirovaniya [Problems of Forecasting]. 2012, no. 6, pp. 4—13.
  2. Sinyak Yu.V., Nekrasov A.S., Voronina S.A., Semikashev V.V., Kolpakov A.Yu. Toplivno-energeticheskiy kompleks Rossii: vozmozhnosti i perspektivy [Fuel and Energy Complex of Russia: Opportunities and Prospects]. Problemy prognozirovaniya [Problems of Forecasting]. 2013, no. 1, pp. 4—21.
  3. Seletskis Ya.Yu. Gidroenergeticheskiy kompleks kak odin iz osnovnykh sostavlyayushchikh TEK Rossii [Hydropower Complex as One of the Main Components of the Fuel and Energy Complex Russia]. Aktual'nye problemy global'noy ekonomiki: Materialy VIII nauchnoy konferentsii molodykh uchenykh (25 maya 2006 g.) [Current Issues of the Global Economy: Proceedings of the VIIIth Scientific Conference of Young Scientists (May, 25, 2006)]. Moscow, RUDN Publ., 2006, pp. 239—242.
  4. Shkoller R.A. Energeticheskaya bezopasnost', energoeffektivnost' i razvitie otrasley TEK [Energy Security, Energy Efficiency and Development of the Fuel and Energy Complex]. Doklad RSPP o vzaimodeystvii biznesa i vlasti v 2008 godu [Report of the Russian Union of Industrialists and Entrepreneurs on Cooperation of Business and Government in 2008]. Moscow, ART Lyudvig Publ., 2008, pp.17—19
  5. Shmarygo L.V. Osnovnye problemy formirovaniya klasterov v TEK Rossii [The Main Problems of the Cluster Formation in the Energy Industry of Russia]. Teoriya i praktika funktsionirovaniya finansovoy i denezhno-kreditnoy sistemy Rossii: Materialy Mezhdunarodnoy nauchno-prakticheskoy konferentsii [Theory and Practice of the Financial and Monetary System Functioning in Russia. Proceedings of the International Scientific and Practical Conference]. Voronezh, 2008, pp. 81—92.
  6. Official site of OAO «RusGidro». Available at: http://www.rushydro.ru. Date of access: 01.08.2013.
  7. Online community portal of Fuel and Energy Complex. Available at: http://www.energyland.info/news-show-tek-electro-107180. Date of access: 01.08.2013.
  8. Illarionov E.M. Praktika provedeniya energeticheskikh obsledovaniy [The Practice of Conducting Energy Inspections]. Energosvet Publ., 2013, no. 4 (29). Available at: http://www.energosovet.ru/bul_stat.php?idd=407.

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HYDRAULICS. ENGINEERING HYDROLOGY. HYDRAULIC ENGINEERING

Hydroturbine for mini hydropower plants

  • Bal'zannikov Mikhail Ivanovich - Samara State University of Architecture and Civil Engineering (SGASU) Doctor of Technical Sciences, Professor, Chair, Department of Environmental Protection and Hydraulic Engineering Structures, Rector, Samara State University of Architecture and Civil Engineering (SGASU), 194 Molodogvardeyskaya St., Samara, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Ivanov Mikhail Vladimirovich - Samara State University of Architecture and Civil Engineering (SGASU) Engineer, Department of Environmental Protection and Hydraulic Engineering Structures, Rector, Samara State University of Architecture and Civil Engineering (SGASU), 194 Molodogvardeyskaya St., Samara, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 139-147

In the article it is stated that hydraulic turbines of low pressure mini power plants are not subject to great loads from water flow. Because of that in such hydropower plants it is possible to use the turbines that are cheaper and simpler from a design point of view. The authors offer the description of a developed simplified orthogonal hydraulic turbine using the energy of the water flow. It is suggested to make the blades hollow. It is also suggested to use curved sheet surfaces for the forcing and backside surfaces of blades. Such a design would reduce the consumption of materials and manufacturing costs for a hydraulic turbine.The research is aimed at studying the water flow conditions in the blade area of the proposed hydraulic turbine design. Research methods include mathematical simulation using the software package ANSYS.The results of investigation of water low bypass for such a hydroturbine design obtained with a mathematical model are given.It is proved that the existing design features, and in particular the slits have no detrimental effect on the parameters of the water flow in the immediate vicinity of an orthogonal hydraulic turbine blade. Basing on the research it has been concluded that the use of a designed simplified orthogonal hydraulic turbine is expedient for low pressure mini and micro hydropower plants.

DOI: 10.22227/1997-0935.2013.12.139-147

References
  1. Bal'zannikov M.I., Elistratov V.V. Vozobnovlyaemye istochniki energii. Aspekty kompleksnogo ispol'zovaniya [Renewable Energy Sources. Aspects of Complex Use]. Samara, Ofort Publ., 2008, 331 p.
  2. Bal'zannikov M.I. Aktualnye napravleniya razvitiya vozobnovlyaemoy energetiki v Srednem Povolzh'e [Priority Fields of Developing Renewable Power in the Middle Volga Region]. Vestnik Volzhskogo regional'nogo otdeleniya Rossiyskoy akademii arkhitektury i stroitelnykh nauk [Proceedings of Volga Regional Section of the Russian Academy of Architecture and Construction Sciences]. 2005, no. 8, pp. 173—185.
  3. Bal'zannikov M.I. 50 let kafedre prirodookhrannogo i gidrotekhnicheskogo stroitel'stva Samarskoy gosudarstvennoy arkhitekturno-stroitelnoy akademii [50th Anniversary of Environmental and Hydrotechnical Engineering Department of Samara State Academy of Architecture and Civil Engineering]. Gidrotekhnicheskoe stroitel'stvo [Hydrotechnical Engineering]. 2003, no. 2, pp. 55—57.
  4. Bal'zannikov M.I. Sovershenstvovanie konstruktsiy vodopriemno-vodovypusknykh ustroystv gidroenergeticheskikh ustanovok [Improving the Design of Water Intakes and Out-takes at Hydrotechnical Plants]. Gidrotekhnicheskoe stroitel'stvo [Hydrotechnical Engineering]. 1994, no. 9, pp. 30—35.
  5. Bal'zannikov M.I., Piyavskiy S.A., Rodionov M.V. Sovershenstvovanie konstruktsiy nizkonapornykh gruntovykh perelivnykh plotin [Improving the Design of Low-head Earth Overflow Dams]. Izvestiya vuzov. Stroitel'stvo [News of the Institutions of Higher Education. Construction]. 2012, no 5, pp. 52—59.
  6. Bal'zannikov M.I. Napravleniya sovershenstvovaniya konstruktsiy vetroenergeticheskikh agregatov [Ways of Improving the Design of Wind Power Generating Units]. Energeticheskoe stroitel'stvo. 1994, no. 10, pp. 14—24.
  7. Bal'zannikov M.I., Evdokimov S.V. Otsasyvayushchaya truba gidroagregata. Patent RF 2140486 [Outlet Pipe of the Hydraulic Unit. Russian Federation Patent no. 2140486]. 1999, Bulletin 30.
  8. Bal'zannikov M.I., Evdokimov S.V., Galitskova Yu.M. Vodopriyemnik-vodovypusk. Patent RF 2169229 [Water Intake – Water Outtake. Russian Federation Patent no. 2169229]. 2001, Bulletin 17.
  9. Bal'zannikov M.I., Seliverstov V.A. Vodopriyemnik. Patent RF 2389846 [Water Intake. Russian Federation Patent no. 2389846]. 2009, Bulletin 14.
  10. Bal'zannikov M.I., Seliverstov V.A. Vodopriyemnik-vodovypusk. Patent RF 2389847 [Water Intake– Water Outtake. Russian Federation Patent no. 2389847]. 2010, Bulletin 14.
  11. Bal'zannikov M.I., Shabanov V.A., Belyaev S.G., Kuklin D.E. Osevoy nasos. Avtorskoe svidetel'stvo 1756647 [Axial Pump. Copyright certificate 1756647]. 1992, Bulletin 31.
  12. Bal'zannikov M.I., Shabanov V.A., Oliner I.M. Osevoy nasos. Patent RF 2031252 [Axial Pump. Russian Federation Patent no. 2031252]. 1995, Bulletin 8.
  13. Bal'zannikov M.I., Alekseev E.I., Evdokimov S.V. Gidrogenerator morskikh techeniy. Patent RF 2372518 [Hydro-generator of Sea Currents. Russian Federation Patent no. 2372518]. 2009, Bulletin 31.
  14. Bal'zannikov M.I., Evdokimov S.V., Ivanov M.V. Gidravlicheskaya turbina. Patent RF 2369770 [Hydraulic Turbine. Russian Federation Patent no. 2369770]. 2009, Bulletin 28.
  15. Bal'zannikov M.I., Evdokimov S.V., Galitskova Yu.M. Vliyanie potokonapravlyayushchikh ustroystv na kharakteristiki ustanovki, ispol'zuyushchey energiyu techeniya [Influence of Flow Control Devices on the Characteristics of a Current Energy Unit]. Trudy NGASU [Works of the Novosibirsk State University of Architecture and Civil Engineering]. Novosibirsk, NGASU Publ., 2000, no. 2, pp. 68—77.
  16. Balzannikov M., Rodionov M. Improvement of Reliability of Earth Dams. Geotechnics for Sustainable Development: Proceedings of the Second International Conference GEOTEC. Hanoi, 2013, pp. 421—423.
  17. Balzannikov M.I., Seliverstov V.A. Issledovaniya vliyaniya razdeliteley potoka dlya primeneniya v vodopriemnykh ustroystvakh gidroenergeticheskikh ustanovok [Researching the Influence of Flow Splitters for Application in Water Intakes of Hydropower Units]. Vestnik SAMGTU. Seriya «Tekhnicheskie nauki» [Proceedings of Samara State Technical University. Series: Technical Sciences]. 2009, no. 3 (25), pp. 199—205.
  18. Popov V.P., Mikhasek A.A., Seliverstov V.A. Vliyanie geometricheskikh kharakteristik vkhodnogo uchastka vodopropusknogo ustroystva gidrotekhnicheskogo sooruzheniya na gidravlicheskie parametry potoka [The Influence of the Geometric Properties of Culvert Device Entrance of Hydraulic Structure on the Hydraulic Characteristics of a Flow]. Vestnik KGUSTA [Proceedings of Kyrgyz State University of Construction]. 2013, no. 1 (39), pp. 73—80.
  19. Seliverstov V.A. Rezultaty issledovaniy vodopriemnogo ustroystva gidroenergeticheskoy ustanovki s ispol'zovaniem programmy «Ansys» [Results of Investigating Water Intake of a Hydrotechnical Plant Using the Program «Ansys»]. Nauchno-tekhnicheskie vedomosti SPbGPU [Scientific and Technical Journal of Saint Petersburg State Polytechnical University]. 2009, no. 4-2 (89), pp. 149—153.
  20. Bal'zannikov M.I., Seliverstov V.A. Investigation of Water-intake Unit at Pumped-storage Power Plant. Power Technology and Engineering. 2012, vol. 46, no. 3, pp. 210—214.

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Features of modelling the head losses on regulating locks in the processof calculating the transients of pump stations

  • Golubev Andrey Vyacheslavovich - Moscow State University of Civil Engineering (MGSU) assistant, Department of Hydraulic Engineering, Moscow State University of Civil Engineering (MGSU), ; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 148-155

It is common in design practice to install check valves and regulating valves at penstocks of pumping stations.The peculiarity of the valves characteristics is essential increase in the coefficient of resistance with a decreasing rotary disc angle. In order to describe the flow characteristic around zero opening of the valve, this characteristic can be presented as the connection of flow coefficient and the angle of the disc rotation. At small angles the disc flow coefficient tends to zero.In case of transient calculations, the work of the gate can be modeled by one of three algorithms. In algorithm 1 the loss at the gate is determined by solving the chain equations of water hammer on the areas adjacent to the gate using the flow characteristics of the valve as boundary conditions.The distinguishing feature is that the boundary condition has to be written in two forms: with the positive flow direction for turbine mode and with negative — for pump mode. For the solution adequacy the radical expression in the flow formula is required to remain positive with the opposite directions of flow. This is achieved by changing the dependencies used to drop the gate.In both cases, the solution will be a quadratic equation with opposite signs of the coefficients. One of the roots gives the correct value of the head loss. The second root is parasitic, it shows significantly overestimated values of pressure loss, and should be ignored.The disadvantage of the algorithm 1 is its buildup in the transition flow through zero due to the delay in switching algorithm from one branch to another, and taking into account parasitic square equation root.The algorithms 2 and 3 are devoid of this disadvantage. Substitution of water hammer of head losses in them is made in the chain equation. The losses are calculated with the help of variable resistance coefficient, which depends on the position of the valve disc and the velocity head.In the algorithm 2 the velocity head is calculated with the help of the known data of flow at the previous step. In the algorithm 3 the losses are calculated more precisely with the flow through the gate and the known flow at the previous step.The analysis of the calculation conditions of pressure loss in the process of simulating water hammer in pressure control valve systems showed that the most stable and consistent result is provided by the method for calculating losses according to the algorithm 3. The system of partial differential equations is reduced to a linear form, providing stability of the solution at high values of the resistance coefficient, as well as during the flow transition through zero.

DOI: 10.22227/1997-0935.2013.12.148-155

References
  1. Klingert N.V., Khokharin A.Kh., Freynshist A.R. Stal'nye truboprovody gidroelektrostantsiy [Steel Pipes of Hydroelectric Power Plants]. Moscow, Energiya Publ., 1973.
  2. Novoderezhkin R.A. Nasosnye stantsii sistem tekhnicheskogo vodosnabzheniya teplovykh i atomnykh elektrostantsiy [Pumping Stations of Water Supply Systems for Thermal and Nuclear Power Plants]. Moscow, Energoatomizdat Publ., 1989, 264 p.
  3. Kiselev P.G., editor. Spravochnik po gidravlicheskim raschetam [Directory on Hydraulic Calculations]. Moscow, Energiya Publ., 1972.
  4. Idel'chik I.E. Spravochnik po gidravlicheskim soprotivleniyam [Directory on Hydraulic Resistances]. Moscow, Mashinostroenie Publ., 1975.
  5. Berlin V.V., Murav'ev O.A. Osobennosti puska nasosnykh agregatov sistem TVS TES i AES pri dlinnykh vodovodakh i bol'shikh kolebaniyakh nizhnego b'efa [Features of the Pumping Units Start of the Water Supply Systems of Thermal and Nuclear Power Plants with Long Conduits and Large Fluctuations in the Tail Race]. Gidrotekhnicheskoe stroitel'stvo [Hydraulic Engineering]. 2000, no. 11.
  6. Arshenevskiy N.N. Pospelov B.B. Perekhodnye protsessy krupnykh nasosnykh stantsiy [Transients of Large Pumping Stations]. Moscow, Energiya Publ., 1980.
  7. Fox J.A. Hydraulic Analysis of Unsteady Flow in Pipe Networks. London, 1977.
  8. Fox J.A. An Introduction to Engineering Fluid Mechanics. Macmillan, London, 1974.
  9. Streeter V.L. Transient Pressure in Centrifugal Pump Systems. Chem. Eng. Progr. 1970, vol. 66, no. 5, pp. 60—64.
  10. Vishnevskiy K.P. Perekhodnye protsessy v napornykh sistemakh vodopodachi [Transients in the Pressure of Water Supply Systems]. Moscow, Agropromizdat Publ., 1986.

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ECONOMICS, MANAGEMENT AND ORGANIZATION OF CONSTRUCTION PROCESSES

The development of small-scale power generation using leasing technologies

  • Alekseeva Tat'yana Romanovna - Moscow State University of Civil Engineering (MGSU) Candidate of Economic Sciences, Associate Professor, Department of Economics and Management in Construction, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 156-162

The article shows the prospects of the development of small-scale power engineering in Russia. Today, the development of small-scale power engineering faces many problems in our country. The legislative support required for the development is insufficient. Another great problem is financing. The article describes such a form of financing as leasing.The essence of leasing contract is presented.Leasing is a form of financing when the owner of an asset (the lessor) temporarily transfers the right to use an asset (and sometimes other ownership rights and obligations) to another party (the lessee). The lessor typically makes the lease for a specified time in return for a lump sum or periodic rental payments from the lessee.The chief advantage of leasing is that it provides an alternative to ownership. Lessees also benefit from a number of tax advantages.The article shows the advantages of leasing for the small-scale power generation and its functions.

DOI: 10.22227/1997-0935.2013.12.156-162

References
  1. Filippov S.P. Malaya energetika v Rossii [Small-scale Power Generation in Russia]. Teploenergetika [Heat Power Engineering]. 2009, no. 8, pp. 38—44.
  2. Zhuravlev M.V. Energeticheskaya konstitutsiya, ili Ob aktual'nosti stroitel'stva mini-TES [Power Constitution, or on the Relevance of Construction of Mini-Thermal Power Stations]. Seti i sistemy svyazi [Networks and Communication Systems]. Moscow, 2007, no. 13, pp. 27—29.
  3. Pahomov A.N., Streltsov S.A., Bitiev A.V., Hamidov M.G. Mini-TES na biogaze: opyt MGUP «Mosvodokanal» [Mini-Thermal Power Station on Biogas: Experience of Mosvodokanal]. Energobezopasnost i energosberegenie [Power Safety and Energy Saving]. 2009, no. 3, p. 22—24.
  4. Osnovnye napravleniya povysheniya energeticheskoy effektivnosti regionalnykh energeticheskikh sistem putem vnedreniya ob’’ektov raspredelitel’noy energetiki, v tom chisle funktsioniruyushchikh v rezhime kombinirovannoy vyrabotki tepla i elektricheskoy energii // Materials of the Round table, State Duma of the Russian Federation, March 24, 2011. Available at: http://minenergo.gov.ru/press/min_news/7014.html?sphrase_id=276419. Date of access: 22.01.2013.
  5. Filosofova T.G. Effektivnost' ispol'zovaniya lizinga v skhemakh modernizatsii [Leasing Effectiveness in the Process of Russian Economy Modernization]. Lizing. Tekhnologii biznesa [Leasing. Technologies of Business]. 2011, no. 9, pp. 6—21.
  6. Syrtsova O.N. Lizing kak instrument modernizatsii ekonomiki Rossii [Leasing as a Tool for Russian Economy Modernization]. Lizing. Tekhnologii biznesa [Leasing. Technologies of Business]. 2012, no. 8, pp. 14—29.
  7. Ibraeva A.A. Sushchnost' i funktsii lizinga v sisteme ekonomicheskikh otnosheniy khozyaystvuyushchikh sub"ektov [Leasing Essence and Functions in the System of Economic Relations of Managing Subjects]. Problemy sovremennoy ekonomiki [Problems of Modern Economy]. 2010, no. 4 (36), pp. 196—199.
  8. Scott Miller, Levon Goukasian. The Performance of Equipment Lease-Backed Securities During the Financial Crisis. Journal of Equipment Lease Financing. 2012, vol. 30, no. 1. Available at: http://www.leasefoundation.org. Date of access: 1.10.2013.

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Optimization of evaluation criteria choice in case of public procurement on construction design in the form of open competition

  • Malykha Galina Gennad’evna - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Department of Construction of Thermal and Nuclear Power Plants, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Chernykh Victoria Nikolaevna - Giprokon L-D Bachelor, head, Development Department, Giprokon L-D, 7 Gilyarovskogo St., Moscow, 129090, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Reshetova Anna Yur’evna - Giprokon L-D Deputy Director, Development Department, Giprokon L-D, 7 Gilyarovskogo str., Moscow, 129090, Russian Federation; +7 (495) 933-87-21; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Alabin Aleksandr Vyacheslavovich - Moscow State University of Civil Engineering (MGSU) Senior Lecturer, Department of Construction of Thermal and Nuclear Power Plants, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 163-170

The possibility of placing orders in the form of public competition is confirmed in law clarification published jointly by Russian Ministry of Economic Development and Federal Anti-Monopoly Service of Russia. Moreover, the analyses and official letters of the Federal Antimonopoly Service recommend to place the orders for construction design in a form of public competition, considering the design work more as creative activity, when initially it is impossible to establish an objective and comprehensive requirements to the quality of work. And, thus, the main advantage of electronic auction is not achieved — that is determining the winner basing on minimum price offer among the bidders who meet pre-set quality requirements.The practice of already conducted design auctions shows that the price offer of the bidder is directly proportional to the quality that he is willing to offer. Moreover, the price reduction is often unreasonable, which can result in either very low quality or work collapse. At this point, placing orders for construction designing and research works in a form of public competition has a number of advantages over the electronic auction system. They are: high-quality and timely work performance due to the establishment of the most important for customer evaluation criteria of the bidders. However, there are also drawbacks. The public competition is the most difficult and the most time-consuming procedure of public procurement methods. Notification of placing an order has to be published on the official website for at least 30 days prior to the closing date and the date of disclosing the bids.In order to prevent corruption the bidders file their applications in sealed envelopes so that the information about the bid remains confidential until the opening of the envelopes. Moreover, the procedure of opening the envelopes is public, it is held at predetermined time and location specified in tender documents, so that each bidder had the right to attend it, make sure that all the envelopes with applications were sealed before the opening, listen and evaluate the content of applications and proposals of other bidders. Then, in a period of no more than 20 days, the tender committee of the customer privately carries out the procedure of applications processing for compliance with the requirements established in accordance with the Law 94FZ, and makes decisions about admission or denial for further tender in respect of each bidder who has filed an application.

DOI: 10.22227/1997-0935.2013.12.163-170

References
  1. Rasporyazhenie Pravitel'stva RF ot 27 fevralya 2008 g. ¹ 236-r [Decree of the Government of the Russian Federation No. 236-r, February 27, 2008].
  2. Pis'mo ot 27 marta 2008 g. ¹ 3663-AP/D05 Ministerstva ekonomicheskogo razvitiya i torgovli RF, ot 25 marta 2008 g. ¹ IA/6294 Federal'noy antimonopol'noy sluzhby «O sposobakh razmeshcheniya zakazov na vypolnenie rabot, otnosyashchikhsya k arkhitekturno-planirovochnym rabotam, razrabotke proektnoy dokumentatsii i tekhniko-ekonomicheskogo obosnovaniya» [Letter No. 3663-AP/D05 as of March 27, 2008 of the Ministry of Economic Development and Trade of the Russian Federation, Letter No. IÀ/6294 as of March 25, 2008 of the Federal Antimonopoly Service “On the Methods for Placing Work Orders Related to Architectural and Planning Works, Development of Design Documentation and Feasibility study”].
  3. Federal'nyy zakon Rossiyskoy Federatsii ot 21 iyulya 2005 g. ¹ 94-FZ «O razmeshchenii zakazov na postavki tovarov, vypolnenie rabot, okazanie uslug dlya gosudarstvennykh i munitsipal'nykh nuzhd» [Federal Law ¹ 94-FZ of July 21, 2005 "On Placement of Orders to Supply Goods, Carry out Works and Render Services for Meeting State and Municipal Needs”].
  4. Postanovlenie Pravitel'stva RF ot 10 sentyabrya 2009 g. ¹ 722 «Ob utverzhdenii Pravil otsenki zayavok na uchastie v konkurse na pravo zaklyuchit' gosudarstvennyy ili munitsipal'nyy kontrakt na postavki tovarov, vypolnenie rabot, okazanie uslug dlya gosudarstvennykh ili munitsipal'nykh nuzhd» [Resolution of the Government of the Russian Federation No. 722 as of September 10, 2009 “On Approval of Rules of Bid Evaluation for Participation in a Tender to Conclude State or Municipal Contract (Civil Contract of Budgetary Institution) on Supply of Goods, Carrying out Works and Rendering Services for Public Needs”].

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PROBLEMS OF HIGHER EDUCATION IN CIVIL ENGINEERING

Lectures features as a type of training in graphic disciplines with extra-mural students

  • Tel’noy Victor Ivanovich - Moscow State University of Civil Engineering (MSUCE) Candidate of Military Sciences, Associated Professor, Associate Professor of Descriptive Geometry and Engineering Graphics; 8499183-24-83., Moscow State University of Civil Engineering (MSUCE), 26, Jaroslavskoe shosse, Moscow, 129337, Russia; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 171-179

The educational process organization on extra-mural courses in a university is generally developed and corresponds to the requirements of the state educational standards and curricula. It provides a small share of in-class work with teaching staff (25–30 %), and most of the time is devoted to independent work of students in intersessional period.Due to the limited time the methodical aspects of lecturing in the course of full-time education can't be used with part-time students. The author describes the importance and opportunities of the most effective types of lectures: orientation, overview and summarizing lectures for the organization of students' independent work.Depending on the nature, complexity and importance of the issues and their role and place in the structure of graphic disciplines and training process it is proposed to use a combination of explanatory-illustrative and problem methods of narration in the lectures. This form of presentation significantly increases the effectiveness of learning.The proposed approaches to the application of information technology in the process of lecturing is designed to assist the lecturer in disclosing educational topics and facilitates understanding and mastering the lectures content by students. This technology of training and lecturing for graphic disciplines allows us to significantly increase the amount of material presented, making it more vivid and understandable. It is aimed at improving the training level of a modern civil engineer after part-time education.

DOI: 10.22227/1997-0935.2013.12.171-179

References
  1. Martynov V.A., Tel'noy V.I. Metodika provedeniya ustanovochnykh zanyatiy s zaochnikami po operativno-takticheskim distsiplinam [The Methodology of the Orientation Sessions with External Students for Operational and Tactical Subjects]. Nauchno-metodicheskiye materialy akademii [Scientific-methodical Materials of the Academy]. Moscow, Military Academy named after F.E. Dzerzhinsky Publ., 1992, vol. XXXIII., pp. 83—88.
  2. Ivanov S.A. Osobennosti lektsii-press-konferentsii kak formy provedeniya zanyatiy so studentami zaochnoy formy obucheniya [Features of Lectures-Press Conferences as a Form of Education with Extra-mural Students]. Available at: http://do.gendocs.ru/docs/index-62687.html. Date of access: 09.11.2012.
  3. Antipova M.V. Formy organizatsii obucheniya: metodicheskoe posobie [Forms of Training Organization. Teacher Edition]. Yoshkar-Ola, Mari State Technical University, MarGTU Publ., 2011, 16 p. Available at: mpfmargtu.ucoz.ru›metod/metodicheskoe_posobie. Date of access: 09.11.2012.
  4. Aronova G.A. Metodika obucheniya vzroslykh: osobennosti lektsionnoy formy podachi materiala po gumanitarnym distsiplinam [Methods of Teaching Adults: Features of Lecture Presentation on the Humane Disciplines]. Available at: http://festival.1september.ru/articles/513950/. Date of access: 09.11.2012.
  5. Osnovnye vidy lektsiy, ispol'zuemye pri zaochnoy forme obucheniya [Main Types of Lectures Used in Extra-mural Education]. Available at: http://www.zipsupc.ru/dzf/pr_metrek2.html. Date of access: 15.11.2012.
  6. Annenkova O.S. Lektsiya kak metod obucheniya v professional'nom obrazovanii [Lection as a Method of Training in Professional Education]. Garantii kachestva professional'nogo obrazovaniya: Mezhdunarodnaya nauchno-prakticheskaya konferentsiya [Guarantees of Quality of Professional Education: International Scientific and Practical Conference]. Barnaul, 2010, pp. 170—172. Available at: http://elib.altstu.ru/elib/disser/conferenc/2010/01/pdf/170annenkova.pdf. Date of access: 06.12.2013.
  7. Politsinskiy E.V., Rumbeshta E.A. Aktivizatsiya poznavatel'noy deyatel'nosti studentov na lektsionnykh zanyatiyakh [Activation of Cognitive Work of Students on the Lectures]. Vestnik TGPU [Proceedings of Tomsk State Pedagogical University]. 2011, no. 6, pp. 37—40. Available at: http://cyberleninka.ru/article/n/aktivizatsiya-poznavatelnoy-deyatelnosti-studentov-na-lektsionnyh-zanyatiyah. Date of access: 10.12.2013.
  8. Morozova L.Yu. Podgotovka i chtenie lektsiy vzrosloy auditorii [Preparing and Presenting Lectures to Adult Audience]. Sotsial'naya set' rabotnikov obrazovaniya [Social Network of Education Workers]. Available at: http://nsportal.ru/shkola/raznoe/library/chtenie-lekciy-vzrosloy-auditorii. Date of access: 06.12.2013.
  9. Polezhaev Yu.O., Tel'noy V.I. Metodika izucheniya distsipliny «Nachertatel'naya geometriya» [Learning Methods of the Discipline "Perspective Geometry"]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2007, no. 1, pp. 82—83.
  10. Tel'noy V.I. Primenenie novykh informatsionnykh tekhnologiy pri izuchenii distsipliny «Inzhenernaya grafika» [Application of New Informational Technologies in the Process of Learning the Discipline "Engineering Graphics]. Integratsiya, partnerstvo i innovatsii v stroi-tel'noy nauke i obrazovanii: nauchnoe izdanie [Integration, Partnership and Innovations in Engineering Science and Education: Scientific Edition]. Moscow, MGSU Publ., 2012, pp. 786—791.

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BRIEF MESSAGES. DISCUSSIONS AND REVIEWS

Fracture mechanics and modern scientific research of building materials

  • Oreshkin Dmitriy Vladimirovich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Chair, Department of Construction Materials; +7 (499) 183-32-29., Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 180-183

The article examines the modern monographs on fracture mechanics, strength, durability and crack resistance of building materials of the following European authors: Zaitsev U.V., Leonovich S.N., Schneider U., Eberhardshtayner E. The article presents the biographical data about the authors, their achievements in education and science, as well as the summary and analysis of the considered monographs.In the book of Zaitsev and Leonovich "The Strength and Durability of Structural Materials with Crack" the authors state, that the increase in reliability and durability of building structures and reinforced concrete structures the same as increase in concrete strength and optimization of its nonrigid features is one of the ways of solving urgent problems in the field of construction.The authors of the monograph "Structure, Strength and Fracture Mechanics of Concrete under Biaxial and Triaxial Compression" present the results of experimental and theoretical studies of the behavior of the common, extra strong, centrifugalled concretes and haydite concrete of various structures.In the monograph "Strength and Fracture Toughness of Structural Building Materials under Complex Stress State" the results of experimental and theoretical studies of the wood and concrete of various structures behavior under Biaxial and Triaxial Compression are presented.The monographs are destined for postgraduate students, candidates for a doctor's degree, scientific and engineering-technical workers of scientific and research centers and engineering companies.

DOI: 10.22227/1997-0935.2013.12.180-183

References
  1. Zaytsev Yu.V., Leonovich S.N. Prochnost' i dolgovechnost' konstruktsionnykh materialov s treshchinoy [The Strength and Durability of Structural Materials with Crack]. Minsk, BNTU Publ., 2010, 362 p.
  2. Zaytsev Yu.V., Leonovich S.N., Shnayder U. Struktura, prochnost' i mekhanika razrusheniya betonov pri dvukhosnom i trekhosnom szhatii [Structure, Strength and Fracture Mechanics of Concrete under Biaxial and Triaxial Compression]. Minsk, BNTU Publ., 2011, 382 p.
  3. Eberkhardshtayner Y., Leonovich S.N., Zaytsev Yu.V. Prochnost' i treshchinostoykost' konstruktsionnykh stroitel'nykh materialov pri slozhnom napryazhennom sostoyanii [Strength and Fracture Toughness of Structural Building Materials under Complex Stress State]. Minsk, BNTU Publ., 2013, 522 p.

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