Home Vestnik MGSU Library Vestnik MGSU 2013/9

Vestnik MGSU 2013/9

DOI : 10.22227/1997-0935.2013.9

Articles count - 19

Pages - 152

DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

Deformation-inducedheating of shifted plates having structural defects

  • Moyseychik Evgeniy Alekseevich - Novosibirsk State Universityof Architecture and Civil Engineering (NSUACE (Sibstrin)) Candidate of Technical Sciences, Associate Professor, Doctoral Student, Department of Metal and Wooden Structures, Novosibirsk State Universityof Architecture and Civil Engineering (NSUACE (Sibstrin)), 113 Leningradskaya str., Novosibirsk, 630008, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Shafray Sergey Dmitrievich - Novosibirsk State Academy of Architecture and Arts (NGAHA) Doctor of Technical Sciences, Professor, Department of buildig production, Novosibirsk State Academy of Architecture and Arts (NGAHA), 38 Krasnyy prospekt, Novosibirsk, 930099, Russian Federation;; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 7-15

The article is based on the authors’ experimental research into dependence between destruction of plates made of low-carbon structural steel, if loaded along their outer edge by the shearing force, whereby the loading is accompanied by deformationinduced heat generation. The authors provide more accurate data on the influence of patterns of particular structural defects on heat generation and initiation of destruction.The experiments conducted by the authors have proven that structural defects of shifted structural elements cause localization of deformations in the zone of defects, whereas the average temperature of the steel surface in the zone of defects may go up by several dozens of degrees and predetermine initiation and development of the seat of destruction in the place exposed to shear forces.Structural defects of shifted elements of structures cause localization of deformations in the zones of defects, especially in the event of elastoplastic and plastic behaviour of steel, while the average temperature of the steel surface exposed to deformations may increase by several dozens of degrees and pre-determine the pattern for development of destructions.

DOI: 10.22227/1997-0935.2013.9.7-15

References
  1. Volkova V.E., Makarova A.A. Chislennoe modelirovanie napryazhenno-deformirovannogo sostoyaniya balki s gibkoy stenkoy [Numerical Modeling of the Stress-strain State of a Beam Having a Flexible Wall]. Metallicheskie konstruktsii [Metal Structures]. 2011, vol. 17, no. 4, pp. 261—269.
  2. Ostrikov G.M., Maksimov Yu.S. Stal'nye seysmostoykie karkasy mnogoetazhnykh zdaniy [Earthquake-resistant Steel Frames of Multi-storied Buildings]. Kazakhstan, Alma-Ata, 1985, 120 p.
  3. Moyseychik E.A. Issledovanie teploobrazovaniya i zarozhdeniya razrusheniya v stal'noy rastyanutoy plastine s konstruktivno-tekhnologicheskim defektom [Research into Heat Generation and Initial Destruction of a Stretched Steel Plate Having a Structural Defect]. Prikladnaya mekhanika i tekhnicheskaya fizika [Applied Mechanics and Applied Physics]. 2013, no. 1, pp. 134—142.
  4. Wells A.A. The Mechanics of Notch Brittle Fracture. Welding Research, 1953, vol. 7, no. 2, pp. 34—56.
  5. Maugin G.A. The Thermomechanics of Plasticity and Fracture. Cambridge, Cambridge University Press, 1992, 350 p.
  6. Pasternak H., M?ller L. Thermovision — Entwicklung eines neuen Verfahrens zur Dehnungsanalyse beanspruchter Stahlbauteile. Stahlbau, 2002, 71, no. 7, pp. 523—536.
  7. Pasternak H., M?ller L. Untersuchung des thermospastischen Verhaltens verschiedener Baustoffe mit Hilfe der Thermovision. Bauingenieur, 2003, 78, pp. 221—230.
  8. Weichert R., Schoenert K. Heat Generation at the Tip of a Moving Crack. J. Mech. Physics Solids, 1978, no. 26, pp. 151—161.
  9. Shafray S.D., Sergeev A.V. Sinergeticheskiy podkhod k opisaniyu kvazikhrupkogo razrusheniya stal'nykh konstruktsiy [Synergetic Approach to Description of Quasi-fragile Destruction of Steel Structures]. Izv. vuzov. Stroitel'stvo i arkhitektura [News of Institutions of Higher Education. Construction and Architecture] 1990, no. 8, pp. 11—15.
  10. Moyseychik E.A., Shafray S.D. O deformatsionnom teploobrazovanii v elementakh stal'nykh stroitel'nykh konstruktsiy iz nizkouglerodistoy stali [On Deformation-induced Heat Formation in Steel Structures Made of Low-carbon Steel]. Izv. vuzov. Stroitel'stvo. [News of Institutions of Higher Education. Construction] 2012, no. 7/8, pp. 101—109.

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Operator algebras and approximate diagonals

  • Myasnikov Aleksey Georgievich - 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 Yaroslavskoye shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 16-22

The author argues that two approaches dominate the study of amenable algebras, groups, modules, etc. They are the homological approach and the approach based on the invariance in respect of a particular group of transformations. In the latter case, an invariant mean serves as a convenient instrument. In particular, a mean is determined as a positive finitely additive measure which is identified using the algebra of all subsets of the group in question.In the first part of the article, the author introduces definitions of an inversely amenable module and an inversely amenable C* algebra. The criteria for the inverse amenability for C* algebras is formulated using virtual diagonals constructed with the help of means, which are invariant in respect of components of amenability in a certain space of limited functions. In the further part of the article, the author presents necessary and sufficient conditions of inverse amenability based on the existence of approximate diagonals. Unlike the standard approach applied to describe amenable Banach algebras, the above approach offers a set of invariant means that are more easily perceived by intuition.

DOI: 10.22227/1997-0935.2013.9.16-22

References
  1. Paterson A.L.T. Amenability. Providence, RI, AMS, 1988, 452 p.
  2. Myasnikov A.G. Amenable Banach L1(G)-modules, Invariant Means and Regularity in the Sense of Arens. Izvestiya vuzov. Matematika [News of Institutions of Higher Education. Mathematics] 1993, no. 37, pp. 69—77.
  3. Myasnikov A.G. Weak Amenability Components of L1(G)-modules, Amenable Groups and Ergodic Theorem. Mathematical Notes. 1999, no. 66, pp. 726—732.
  4. Myasnikov A.G. Amenable L1(G)-modules and amenable S*-algebras. Voprosy matematiki, mekhaniki sploshnykh sred i primeneniya matematicheskikh metodov v stroitelstve [Issues of Mathematics, Mechanics of Continuous Media and Application of Mathematical Methods in Civil Engineering]. Sb. nauchn. tr. [Collection of Research Works]. 2008, no. 11, pp. 101—119.
  5. Paterson A.L.T. Invariant Mean Characterizations of Amenable C*-algebras. Houston J. Math. 1991, vol.17, no. 4, pp. 551—565.
  6. Kaijser S., Sinclair A.M. Projective Tensor Products of C*-algebras. Math. Scand. 1984, no. 55, pp. 161—187.
  7. Greenleaf F.P. Invariant Means on Topological Groups and Their Applications. 1969, New York University, 113 p.
  8. Bodaghi A. Module Amenability of Banach Algebras. Lambert Academic Publishing, 2012, 168 p.
  9. Johnson B.E. Cohomology in Banach Algebras. Mem. Amer. Math. Soc. Providence, 1972, no. 127.
  10. Rosenberg J. Amenability of Crossed Products of C*-algebras. Commun. Math. Phys. 1977, no. 57, pp. 187—191.

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Calculation of open-frame through beams according to the A.R. Rzhanitsyn’s theoryof compound rods

  • Filatov Vladimir Vladimirovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Department of Structural Mechanics, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoye shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 23-31

Through beams are widely used in the construction of large-span civil and industrial buildings, bridge engineering and mechanical engineering. They include open-frame girders and castellated beams. In order to determine their stress-strain state, software systems based on the finite element method are used or approximate calculations using simplified calculation patterns of Virendel beams are performed. Recently, many projects have been completed, in which A.R. Rzhanitsyn’s theory of compound rods is applied to calculate through structures.In this model, discrete links connecting upper and lower belts of the structure are re-placed by cross ties and shift connections continuously distributed along the length of the joint. Cross links hinder the convergence or separation of belts from one another. As a rule, pliability of cross links is neglected. This assumption, which substantially facilitates the calculation, is consistent with the hypothesis that there is no lateral strain in individual rods, calculated according to the theory. Therefore, whenever a compound rod is loaded, all its layers, and in this case – belts, are deformed according to the same curve pattern. In calculations, elastically compliant shift connections are replaced by the required distribution function of shear forces distributed along the length of the beam joint. Thus, the calculation of a through-beam is reduced to the solution of three ordinary differential equations of the second order, on the basis of which the following functions should be defined: beam deflection, bending moment and shear stress in the beam joint.The author discusses development of a numerical method of calculation of through beams based on the A.R. Rzhanitsyn’s theory of compound rods. To solve the system of differential equations, difference equations of the successive approximations method are involved to take account of finite discontinuities of the desired function, its first derivative and the right-hand side of the original differential equation. They demonstrate high accuracy if compared to well-known finite difference method equations.To illustrate the algorithm, the author provides sample calculations of open-frame girders and perforated beams having openings of different shapes. The results obtained by the authors are compared with a well-known analytical solution and a numerical solution based on the finite element method.

DOI: 10.22227/1997-0935.2013.9.23-31

References
  1. Biryukov V.V., Zabalueva T.R., Zakharov A.V. Proektirovanie bol'sheproletnykh mnogoetazhnykh sportivnykh zdaniy [Design of Long-span Multi-story Sports Buildings]. Arkhitektura i stroitel'stvo Rossii [Architecture and Construction of Russia]. 2011, no. 9, pp. 12—19.
  2. Shuller.V. Konstruktsii vysotnykh zdaniy [Structures of High-rise Buildings]. Moscow, Stroyizdat Publ., 1979, 248 p.
  3. Kartopol'tsev V.M., Balashov E.V. K voprosu issledovaniya napryazhenno-deformirovannogo sostoyaniya sovmestnoy raboty skvoznykh balok s zhelezobetonnoy plitoy na metallicheskom poddone [Towards Research into the Stress-Strain State of Combined Behaviour of Open-frame Beams and a Reinforced-concrete Slab Resting on the Metal Tray]. Vestnik TGASU [Bulletin of Tomsk State University of Architecture and Civil Engineering]. 2004, no. 1, pp. 169—178.
  4. Rabinovich I.M. Spravochnik inzhenera-proektirovshchika promsooruzheniy [Reference Book for Design Engineers of Industrial Buildings]. Tom 2 Raschetno-teoreticheskiy. [Vol. 2. Analysis and Theory]. Moscow – Leningrad, Gosstroyizdat Publ., 1934, 709 p.
  5. Drobachev V.M., Litvinov E.V. Analiticheskoe opredelenie napryazhenno-deformirovannogo sostoyaniya stenki-peremychki perforirovannoy balki [Analytical Methods of Identification of the Stress-strain State of a Partition Wall of a Castellated Beam]. Izv. vuzov. Stroitel'stvo [News of Institutions of Higher Education. Construction.] 2003, no. 5, pp. 128—133.
  6. Pritykin A.I. Progiby perforirovannykh balok-stenok s pryamougol'nymi vyrezami [Deflection of Castellated Deep Beam Having Rectangular Openings]. Izv. vuzov. Stroitel'stvo. [News of Institutions of Higher Education. Construction] 2009, no. 10, pp. 110—116.
  7. Pritykin A.I. Primenenie teorii sostavnykh sterzhney k opredeleniyu deformatsiy perforirovannykh balok [Application of the Theory of Compound Rods to Identification of Deformations of Castellated Beams]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2009, no. 4, pp. 177—181.
  8. Pimenov A.S., Kholopov I.S., Solov'ev A.V. Optimal'noe proektirovanie perforirovannykh balok [Optimal Design of Castellated Beams]. Vestnik transporta Povolzh'ya [News Bulletin of the Volga Region Transport]. 2009, no. 1, pp. 69—74.
  9. Bedi K.S., Pachpor P.D. Moment and Shear Analysis of Beam with Different Web Openings. International Journal of Engineering Research and Applications. November – December 2011, vol. 1, no. 4, pp. 1917—1921.
  10. Wakchaure M.R., Sagade A.V. Finite Element Analysis of Castellated Steel Beam. International Journal of Engineering and Innovative Technology. July 2012, vol. 2, no. 1, pp. 365—370.
  11. Chhapkhane N.K., Shashikant R.K. Analysis of Stress Distribution in Castellated Beam Using Element Method and Experimental Techniques. International Journal of Mechanical Engineering Applications Research. August - September 2012, vol. 3, no. 3, pp. 190—197.
  12. Kholoptsev V.V. Raschet sostavnykh mnogoproletnykh nerazreznykh balok [Analysis of Compound Multi-span Beams]. Stroitel'naya mekhanika i raschet sooruzheniy [Structural Mechanics and Analysis of Structures]. 1966, no. 3, pp. 26—29.
  13. Rzhanitsyn A.R. Sostavnye sterzhni i plastinki [Compound Rods and Plates]. Moscow, Stroyizdat Publ., 1986, 316 p.
  14. Gabbasov R.F., Filatov V.V. Chislennoe reshenie zadachi po raschetu sostavnykh sterzhney s peremennym koeffitsientom zhestkosti shva [Numerical Solution to the Problem of Analysis of Compound Rods Having Variable Seam Stiffness Coefficient]. ACADEMIA. Arkhitektura i stroitel'stvo [Academy. Architecture and Construction] 2007, no. 2, pp. 86—89.
  15. Gabbasov R.F., Gabbasov A.R., Filatov V.V. Chislennoe postroenie razryvnykh resheniy zadach stroitel'noy mekhaniki [Numerical Generation of Discontinuous Solutions to Problems of Structural Mechanics]. Moscow, ASV Publ., 2008, 280 p.

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Identification of optimal rise-to-spanratios of a dome space frame

  • Shirokov Vyacheslav Sergeevich - Samara State University of Architecture and Civil Engineering (SSUACE) postgraduate student, Department of Metal and Timber Structures, Samara State University of Architecture and Civil Engineering (SSUACE), 194 Molodogvardeyskaya st., Samara, 443001, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 32-40

In this paper, the author considers the issues of design of domed space lattice frames, circular in plan and having rectangular center nets. These structures have several variables influencing their mass. Span width and dome rise are their modifiable parameters. Their fixed parameters include topology, net-to-net distance, length of top net rods, type of the transverse cross-section of rods, and the construction material. Their constraints include the tensile strength of elements, the stability of compressed elements, restrictions applied to the rigidity of a structure, and restrictions applied to the span size. The task of finding the optimal rise-to-span ratio was solved by introducing successive changes into variables. The value of the span was changed at the increments of 10 meters, while the rise was changed at the increments equal to 5 meters.As a result of a series of calculations, values of variable parameters of a convex spatial lattice frame having tubular sections and different ratios were obtained. If the value of a span is within the 30 m≤l< 60 meters range (where l is the span of a structure), the optimal rise value rests within (1/5 to 1/8)l. The optimal rise is (1/4 to 1/5)l for spans above 60 meters.

DOI: 10.22227/1997-0935.2013.9.32-40

References
  1. Trofimov V.I., Begun G.B. Strukturnye konstruktsii (issledovanie, raschet i proektirovanie) [Space Frames (Study, Calculation, and Design)]. Moscow, Stroyizdat Publ., 1972, 272 p.
  2. Klyachin A.Z. Metallicheskie reshetchatye prostranstvennye konstruktsii regulyarnoy struktury (razrabotka, issledovanie, opyt primeneniya) [Metal Lattice Space Structures Having Regular Structure (Development, Study, Application Experience]. Ekaterinburg, Diamant Publ., 1994, 276 p.
  3. Khisamov R.I. Konstruirovanie i raschet strukturnykh pokrytiy [Design and Analysis of Space Frames]. Kazan, 1977, 79 p.
  4. Alpatov V.Yu., Kholopov I.S. Optimizatsiya geometricheskoy formy prostranstvenno-sterzhnevykh konstruktsiy [Optimization of Geometrical Shape of Space and Rod Constructions]. Metallicheskie konstruktsii [Metal Structures]. 2009, no. 1, vol. 15, pp. 47—57.
  5. Lipnitskiy M.E. Kupola [Domes]. Leningrad, Izdatel'stvo literatury po stroitel'stvu publ., 1973, 129 p.
  6. Behzad A., Hamid M., Amran A. Find the Optimum Shape Design of Externally Pressurized Torispherical Dome Ends Based on Buckling Pressure by Using Imperialist Competitive Algorithm and Genetic Algorithm. Applied Mechanics and Materials. 2012, vol. 110—116, pp. 956—964.
  7. ?arba? S., Saka M.P. Optimum Design of Single Layer Network Domes Using Harmony Search Method. Asian Journal of Civil Engineering (Building and Housing). 2009, vol. 10, no. 1, pp. 97—112.
  8. Molev I.V. Chislennoe issledovanie zakonomernostey vesa setchatykh kupolov [Numerical Modeling of Mass-related Regularities of Lattice Domes]. Izvestiya vuzov. Stroitel'stvo i arkhitektura [News of Institutions of Higher Education. Construction and Architecture.] 1973, no. 8, pp. 3—8.
  9. Likhtarnikov Ya.M. Variantnoe proektirovanie i optimizatsiya stroitel'nykh konstruktsiy [Trial Design and Optimization of Structural Units]. Moscow, Stroyizdat Publ., 1979, 319 p.
  10. Majid K.I. Optimum Design of Structures. London, 1974, 237 p.

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BEDDINGS AND FOUNDATIONS, SUBTERRANEAN STRUCTURES. SOIL MECHANICS

Principles of classification of soilmasses for construction purposes

  • 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 41-46

The author proposes original grounds for the classification of the full range of soil masses as a supplement to the classification of soils provided in GOST 25100—2011. The author proposes four classes of soil masses, each class having several types and sub-types of soils. The classification will improve the accuracy of engineering and geological surveys and computer models of the geological environment developed for the purpose of design of buildings and structures. The author offers a classification of soils to identify the geological environment comprising one or more types of soil which are genetically and structurally distinct. Any soil mass type differs by its origin, and, as a consequence, its internal geological structure, stress-strain state and inherent geological processes. Any genetically isolated type of soils a specific program of research, both in terms of methods and in terms of density testing in the point of sampling. The behavior of rock masses together with the engineering structure is pre-determined by the properties of the rock, its relative position (geological structure), a network of cracks and other weakening factors, and the natural state of stress. The fracture network is of paramount importance. Cracks are characterized by direction, length, width, surface roughness of walls, and a distance between parallel cracks.

DOI: 10.22227/1997-0935.2013.9.41-46

References
  1. Pashkin E.M., Kagan A.A., Krivonogova N.F.; Pashkina E.M., editor. Terminologicheskiy spravochnik po inzhenernoy geologii [Reference Book of Terms of Engineering Geology]. Moscow, KDU Publ., 2011, 952 p.
  2. Panyukov P.N. Inzhenernaya geologiya [Engineering Geology]. Moscow, Gosgortekhizdat Publ., 1962.
  3. Bondarik G.K. Teoriya geologicheskogo polya [Geological Field Theory]. Moscow, MIMS Publ., 2002, 129 p.
  4. Belyi L.D. Obshie principial'nye polozheniya [General Principal Provisions]. In the book: Geologiya i plotiny [Geology and Dams]. Moscow — Leningrad, Gosenergoizdat Publ., 1959, pp. 9—19.
  5. Muller L. Der Felsbau. Ferdinand Enke Verlag. Stuttgart, 1963, 453 p.
  6. Bauduin C.M. Determination of Characteristic Values. In: U. Smoltczyk, editor, Geotechnical Engineering Handbook. Berlin, Ernst Publ., 2002, vol. I, pp. 17—50.
  7. Frank R., Kovarik J.B. Comparasion des niveaux de modele pour la resistance ultime des pieux sous charges axiales. Revue Francaise de Geotechnique. 2005, 110, pp. 12—25.
  8. Belyi L.D. Osnovy teorii inzhenerno-geologicheskogo kartirovaniya [Fundamentals of the Theory of Engineering Geological Mapping]. Moscow, Nauka Publ., 1964.

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TECHNOLOGY OF CONSTRUCTION PROCEDURES. MECHANISMS AND EQUIPMENT

Fundamentalsof calculations of a vibration-induced smoothingrack for a concrete spreader

  • Kapyrin Pavel Dmitrievich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, chair, Department of Mechanization of Construction, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoye shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Stepanov Mikhail Alekseevich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Chair, Department of Mechanical Equipment, Details of Machines, and Technology of Metals; Director, Department of Research and Technology, 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 47-55

The essence of the new development, proposed by the co-authors, consists in the following engineering solution: a concrete spreader, designated for the molding of products to be made of concrete mixtures and composed of a self-moving gantry, is equipped with a hoisting smoothing mechanism and a cart having a travel mechanism that has a roll-over hopper and a dispenser with a shutter, that is kinematically connected to the power engine. The shutter has an elastoplastic lining. The hoisting smoothing mechanism represents a rack having rigidly connected top and bottom plates. The longitudinal groove of the smoothing plate has teeth with a conical body. The teeth are attached to the springs hinged to the bottom surface of the top plate rigidly connected to the rod of the hydrocylinder and a frame installed on the guide of the gantry. The proposed construction of the vibration-induced smoothing rack of a concrete spreader improves the quality of the smoothed surface of concrete mixtures thanks to the higher intensification and compaction of the concrete mixture surface because of deeper penetration of vibrations into inner concrete layers and higher pressure produced on the concrete mixture.

DOI: 10.22227/1997-0935.2013.9.47-55

References
  1. Mikhaylov K.V. Zhelezobeton v XX veke [Reinforced Concrete in the 20ieth Century]. Moscow, Gotika Publ., 2001, 683 p.
  2. Chaus K.V., Chistov Yu.D., Labzina Yu.V. Tekhnologiya proizvodstva stroitel'nykh materialov, izdeliy i konstruktsiy [Technology of Production of Construction Materials, Products and Structures]. Moscow, Stroyizdat Publ., 1988, 448 p.
  3. Bogdanov V.S., Sharapov R.R., Fadin Yu.M., Semikopenko I.A., Nesmeyanov N.P., Gerasimenko V.B. Osnovy rascheta mashin i oborudovaniya predpriyatiy stroitel'nykh materialov i izdeliy [Fundamentals of Calculations of Machinery and Items of Equipment by Enterprises Engaged in Production of Construction Materials and Products]. Stary Oskol, TNT Publ., 2012, 680 p.
  4. Zhuravlev M.I., Folomeev A.A. Mekhanicheskoe oborudovanie predpriyatiy vyazhushchikh materialov i izdeliy na baze ikh [Mechanical Equipment at Enterprises Engaged in Production of Viscous Materials and Products Made of Viscous Materials]. Moscow, Vysshaya shkola publ., 2005, 233 p.
  5. Hammond G., Jones C. 2008. Inventory of Carbon and Energy. University of Bath.
  6. Kapyrin P.D. Betonoukladchik dlya formovaniya izdeliy iz betonnykh smesey [Concrete Spreader Designated for Molding of Products Made of Concrete Mixtures]. Patent Issued to Protect the Utility Model no. 128153, application no. 20131302741, filing date 22.01.2013, registration date 20.05.2013.
  7. Savinov O.A., Lavrinovich E.V. Teoriya i metody vibratsionnogo formovaniya zhelezobetonnykh izdeliy [Theory and Methods of Vibration-induced Molding of Reinforced Concrete Products]. Moscow, Stroyizdat Publ., 1988, 154 p.
  8. DSK «Blok» investiruet v novoe oborudovanie dlya proizvodstva perekrytiy i sten [“Block” Integrated House-building Factory Invests in New Floor and Wall Making Machinery]. Betonnyy zavod BFT Internation [BFT Internation Concrete Factory]. 2009, no. 3, pp. 52—55.
  9. Plouman J.M. The Influence of Variables in the Vibration of Concrete. Concrete Building and Concrete Products. 1953, vol. 28.
  10. Superplasticizers and Other Chemical Admixtures in Concrete. Proceedings of the Fifth Canmet, an ACI International Conference. Rome, Italy, 1997.

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RESEARCH OF BUILDING MATERIALS

Properties of lightweight products made of extruded mixtures, if exposed to deformationand fracture

  • Kaptsov Petr Vladimirovich - Moscow State University of Civil Engineering (MGSU) Director of Laboratory, postgraduate student, Department of Construction Materials, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoye shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 56-61

This article covers the study of the properties of lightweight solutions and products made of extruded cement mixtures having hollow glass microspheres. The author presents data on the average density, strength, water vapour permeability, thermal conductivity, per-unit energy consumption, and crack resistance in the course of deformation and complete destruction. The author presents the findings of the studies of the microstructure of hollow glass microspheres; the conclusion is that if the extruded cement mixture has effective and active hollow glass microspheres, the water flow will be less intensive, while compressive strength, bending strength, fracture toughness go up. Analysis of the data shows that the fracture toughness of the material, having hollow glass microspheres and made of the extruded mixture, is higher. This material has a 30...40% higher fracture strength, bending strength and compressive strength, than a regular lightweight composition mixed with HGMS. This article is the fourth one in aseries of articles that discuss methods of extrusion of lightweight cement mixtures.

DOI: 10.22227/1997-0935.2013.9.56-61

References
  1. Oreshkin D.V., Kaptsov P.V. Nauchno-tekhnicheskie predposylki polucheniya ekstrudirovannykh oblegchennykh tsementnykh system [Scientific and Technical Preconditions for Extruded Lightweight Cement Systems]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2012, no. 3, pp. 11—19.
  2. Oreshkin D.V,, Semenov V.S., Kaptsov P.V. Ekstrudirovannye oblegchennye kladochnye rastvory [Extruded Lightweight Masonry Mortars]. Vestnik Tomskogo GASU [News Bulletin of Tomsk State University of Architecture and Civil Engineering]. 2012, no. 3, pp. 159—163.
  3. Oreshkin D.V. Oblegchennye i sverkhlegkie tsementnye rastvory dlya stroitel'stva [Lightweight and Superlight Cement Mortars for Construction Purposes]. Stroitel'nye materialy [Construction Materials]. 2010, no. 6, pp. 34—37.
  4. Oreshkin D.V., Belyaev K.V., Semenov V.S. Teplofizicheskie svoystva, poristost' i paropronitsaemost' oblegchennykh tsementnykh rastvorov [Thermal-physical Properties, Porosity and Vapour Permeability of Lightweight Cement Mortars]. Stroitel'nye materialy [Construction Materials]. 2010, no.8, pp. 51—55.
  5. Sakharov G.P., Chan Min Dyk. Povyshenie svoystv melkozernistogo betona ekstrudirovaniem iskhodnykh smesey [Improvement of Properties of Fine-grain Concrete Using Method of Extrusion of Initial Mixtures]. Beton i zhelezobeton [Concrete and Reinforced Concrete]. 2009, no. 1, pp. 6—8.
  6. Oreshkin D.V. Problemy stroitel'nogo materialovedeniya i proizvodstva stroitel'nykh materialov [Problems of the Construction Material Science and Production of Construction Materials]. Stroitel'nye materialy [Construction Materials]. 2010, no. 11, pp. 6—8.
  7. Eberhardsteiner J., Zhdanok S., Khroustalev B., Batsianouski E., Samtsou P., Leonovich S. Characterization of the Influence of Nanomaterials on the Mechanical Behavior of Cement Stone. Journal of Engineering Physics and Thermophysics. July 2011, vol. 84, no. 4, pp. 8—10.
  8. Belyaev K.V., Oreshkin D.V., Bliznyukov V.Yu., Pervushin G.N. Metody opredeleniya i povysheniya treshchinostoykosti oblegchennykh tamponazhnykh materialov [Methods of Identification and Improvement of Fracture Strength of Lightweight Backfill Materials]. Neftyanoe khozyaystvo [Oil Economy]. 2003, no. 6, pp. 42—46.
  9. Oreshkin D.V., Pervushin G.N. Parametry deformirovaniya i razrusheniya tamponazhnogo kamnya s mikrosferami posle pulevoy perforatsii [Parameters of Deformation and Destruction of Backfill Stone Having Microspheres Following Bullet Perforation]. Vestnik grazhdanskikh inzhenerov [News Bulletin of Civil Engineers]. 2009, no. 4, pp. 164—166.

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Analytical description of the coefficient of demagnetization for chains of cores of granulesin the filter matrix of a magnetic separator

  • Sandulyak Anna Aleksandrovna - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Associate Professor, Department of Construction Materials; 7 (499) 183-32-29, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoye shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 62-69

Particle capturing efficiency inside the filter matrix of a magnetic separator used in the treatment of ceramic suspensions, minerals, condensates, other liquids and gas depends immediately on the intensity of its magnetization capacity. Chains of granules of a filter matrix represent effective magnetization channels. Demagnetization intensity influences the magnetization intensity of the whole filter matrix and its separate chains that are also considered as magnetization channels. The pattern of calculation of demagnetization factor N (coefficient of demagnetization) for such channel magnets is of utmost academic interest, and this pattern is provided in this article. The author provides values for demagnetization factor N for quasi solid cores ofchains of granules having with various lengths L and diameters d (metal concentra-tion 0.78—0.99), if magnetized by the field having the intensity of Н =18–175 kА/m. It isproven that the values of N and √ L / d have an exponential relation.Earlier, the author identified that the values of N for the porous media having a cylindrical form depend on the ratio of the length of magnet L to its diameter D . It is proven that the values of N and those of √ L / D also have an exponential relation. Therefore, this reciprocal conformity of relations in respect of the demagnetization factor for samples of the granulated medium (consisting of chains of magnets-channels) and for cores of magnets-channels (having different porosity values) has confirmed the similarity of the demagnetization factor for magnets having substantial and high concentration of the ferromagnetic material. The analytical description (the formula) of the coefficient of demagnetization of channel cores is provided in the article.

DOI: 10.22227/1997-0935.2013.9.62-69

References
  1. Sandulyak A.V. Model' namagnichivaniya poristoy sredy [Model of Magnetization of the Porous Medium]. Zhurnal tekhnicheskoy fiziki [Journal of Applied Physics]. 1982, vol. 52, no. 11, pp. 2267—2269.
  2. Sandulyak A.V., Sandulyak A.A., Ershova V.A. Krivaya namagnichivaniya granulirovannoy sredy s pozitsiy modeli pokanal'nogo namagnichivaniya (novyy podkhod) [Granulated Media Magnetization Curve Simulated Using the Channel-by-channel Magnetization Model (a New Approach)]. Doklady Akademii nauk [Reports of the Academy of Sciences]. 2007, vol. 413, no. 4, pp. 469—471.
  3. Sandulyak A.V., Sandulyak A.A., Ershova V.A. K voprosu o modeli pokanal'nogo namagnichivaniya granulirovannoy sredy (s radial'nym profilem pronitsaemosti kvazisploshnogo kanala) [On the Issue of the Model of Channel-by-channel Magnetization of the Granulated Media (Having a Radial Profile of Permeability of the Quasi-continuous Channel)]. Zhurnal tekhnicheskoy fiziki [Journal of Applied Physics]. 2009, vol. 79, no. 5, pp. 140—143.
  4. Sandulyak A.A., Ershova V.A., Ershov D.V., Sandulyak A.V. O svoystvakh «korotkikh» granulirovannykh magnetikov s neuporyadochennymi tsepochkami granul: pole mezhdu granulami [On the Properties of “Short” Granulated Magnets Having Irregular Chains of Granules: Field between Granules]. Fizika tverdogo tela [Physics of Solids]. 2010, vol. 52, no. 10, pp. 1967—1974.
  5. Meylikhov E.Z., Farzetdinova R.M. Obobshchennaya teoriya srednego polya dlya reshetochnykh magnitnykh sistem i ferromagnetizm poluprovodnikov s magnitnymi primesyami [Generalized Theory of the Mean Field for Latticed Magnetic Systems of Ferromagnetism of Semiconductors Having Magnetic Admixtures]. Fizika tverdogo tela [Physics of Solids]. 2005, vol. 47, no. 6, pp. 1085—1091.
  6. Komogortsev S.V., Iskhakov R.S. Krivaya namagnichivaniya i magnitnye korreyatsii v nanotsepochke ferromagnitnykh zeren so sluchaynoy anizotropiey [Magnetization Curve and Magnetic Correlations in the Nano-scale Chain of Ferromagnetic Grains Having Random Anisotropy]. Fizika tverdogo tela [Physics of Solids]. 2005, vol. 47, no. 3, pp. 480—486.
  7. Andreenko A.S., Berezovets V.A., Granovskiy A.B. Inversnoe magnitosoprotivlenie v magnitnykh granulirovannykh kompozitakh (FeCoB)-(Al2O3) [Inverse Resistance to Magnetization inside Magnetic Granulated Composites (FeCoB)-(Al2O3)]. Fizika tverdogo tela [Physics of Solids]. 2003, vol. 45, no. 8, pp. 1446—1449.
  8. Zubarev A.Yu. Reologicheskie svoystva polidispersnykh magnitnykh zhidkostey. Vliyanie tsepochechnykh agregatov. [Rheological Properties of Polydisperse Magnetic Liquids. Influence of Chain Aggregates]. Zhurnal eksperimental'noy i teoreticheskoy fiziki [Journal of Experimental and Theoretical Physics]. 2001, vol. 120, no. 1(7), pp. 94—103.
  9. Granovskiy A.B., Bykov I.V., Gan'shina E.A. Magnitorefraktivnyy effekt v magnitnykh nanokompozitakh [Magnetorefractive Effect in Magnetic Nano-scale Composites]. Zhurnal eksperimental'noy i teoreticheskoy fiziki [Journal of Experimental and Theoretical Physics]. 2003, vol. 123, no. 6, pp. 1256—1265.
  10. Kashevskiy B.E., Prokhorov I.V. Magnitoforeticheskiy potentsial tsepochki ferromagnitnykh sharov v odnorodnom pole [Magnitophoresis Potential of a Chain of Ferromagnetic Balls in the Homogeneous Field]. Inzhenerno-fizicheskiy zhurnal [Journal of Engineering and Physics]. 2003, vol. 76, no. 4, pp. 30—35.
  11. Meylikhov E.Z., Farzetdinova R.M. Osnovnoe sostoyanie reshetok ferromagnitnykh granul s magnitodipol'nym vzaimodeystviem [Principal State of Lattices of Ferromagnetic Granules Exposed to Magnetic Dipolar Interaction]. Zhurnal eksperimental'noy i teoreticheskoy fiziki [Journal of Experimental and Theoretical Physics]. 2002, vol. 121, no. 4, pp. 875—883.
  12. Zubarev A.Yu., Iskakova L.Yu. K teorii fizicheskikh svoystv magnitnykh zhidkostey s tsepochechnymi agregatami [On the Theory of Physical Properties of Magnetic Liquids Having Chain Aggregates]. Zhurnal eksperimental'noy i teoreticheskoy fiziki [Journal of Experimental and Theoretical Physics]. 1995, vol. 107, no. 5, pp. 1534—1551.
  13. Yurishchev M.A. Magnitnaya vospriimchivost' kvaziodnomernykh superantiferromagnetikov Izinga. Approksimatsii tsepochechnymi klasterami. [Magnetic Susceptibility of Ising Quazi-one-dimensional Super Ferrous Magnets. Approximations by Chain Clusters]. Zhurnal eksperimental'noy i teoreticheskoy fiziki [Journal of Experimental and Theoretical Physics]. 2005, vol. 128, no. 6 (12), pp. 1227—1242.
  14. Sandulyak A.V., Sandulyak A.A., Ershova V.A. Razmagnichivayushchiy faktor granulirovannogo magnetika (fil'truyushchey matritsy) kak zhguta kanalov namagnichivaniya [Demagnetization Factor of the Granulated Magnet (Filter Matrix) as the Strap of Magnetization Channels]. Izvestiya MGTU «MAMI» [News of Moscow State Technical University “MAMI”]. 2011, no. 1(11), pp. 210—216.
  15. Mattei J.-L., Le Floc'h M. Percolative Behaviour and Demagnetizing Effects in Disordered Heterostructures. Journal of Magnetism and Magnetic Materials. 2003, no. 257, pp. 335—345.
  16. Gorkunov E.S., Zakharov V.A., Chulkina A.A., and Ul’yanov A.I. Internal Demagnetization Factor for Porous Ferromagnets in Remagnetization Process. Russian Journal of Nondestructive Testing. 2004, vol. 40, no.1, pp. 1—7.
  17. Kifer I.I. Ispytaniya ferromagnitnykh materialov [Testing of Ferromagnetic Materials]. Moscow, Energiya Publ., 1969, 360 p.
  18. Chen D.-X., Pardo E., Sanchez A. Fluxmetric and Magnetometric Demagnetizing Factors for Cylinders. Journal of Magnetism and Magnetic Materials. 2006, no. 306, pp. 135—146.

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

The concept of sustainable development as the representation of postmodernism

  • 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 .
  • Ryabova Svetlana Sergeevna - Academy of Public Administration of the President of the Republic of Belarus (Academy of Management) Senior Lecturer, Department of Management of Regional Development, Academy of Public Administration of the President of the Republic of Belarus (Academy of Management), 17 Moskovskaya st., Minsk, 220007, Republic of Belarus; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 70-78

The authors study the philosophical correlation between postmodernism and the concept of sustainable development. The author assesses modernism as the place of origin of postmodernism and its basic principles. The author also demonstrates the principal laws of sustainable development as the opposition to the global ecological crisis. Postmodernism is perceived as the most adequate expression of the intellectual and emotional personification of the epoch. Besides, philosophical postmodernism strives to act as the general theory of the modern art. As a result, postmodernism is regarded as the expression of the spirit of the time in all spheres of human life: art, sociology, science, economics, politics, etc. It has been identified that since the acceptance of the Rio Declaration, its results have been discussed for over 20 years. Spiritual fundamentals of modernism include commonsense, progress, and emancipation. In their turn, postmodernists believe that these ideas have been perverted in their new European version, as it represents the ideology of the consumer society and the “Gold Billion”. Criticism of three fundamentals of modernism and postmodernism, and the main provisions of the concept of sustainable development, considered by the authors, serve as the confirmation of the authors’ assumption that sustainable development is the expression of postmodernism.

DOI: 10.22227/1997-0935.2013.9.70-78

References
  1. Baudrillard J. Sistema veshchey [System of Objects]. Moscow, RUDOMINO Publ., 2001, 224 p.
  2. Baudrillard J. Obshchestvo potrebleniya. Ego mify i struktury [The Consumer Society. Its Myths and Structures]. Moscow, Kul'turnaya revolyutsiya Publ., Respublika Publ., 2006, 269 p.
  3. Welsch W. Wege aus der Moderne: Schl?sseltexte der Postmoderne. Diskussion. Berlin, Akademieverlag, December 2002.
  4. Jameson F. The Political Unconscious: Narrative as a Symbolic Act. Routledge, 2002, 296 p.
  5. Forrester D. Mirovaya dinamika [The World Dynamics]. Moscow, AST Publ., 2006, 384 p.
  6. Meadows D. Predely rosta. 30 let spustya [Limits to Growth. Thirty-year Update] Moscow, Akademkniga Publ., 2007, 342 p.
  7. Mesarovic M., Pestel E. Mankind at the Turning Point: The Second Report to the Club of Rome. New York, E. P. Dutton and Co. Inc., 1974, 125 p.
  8. Koptyug V.A. Konferentsiya OON po okruzhayushchey srede i razvitiyu [UN Conference on Environment and Development]. Rio-de-Janeiro, June 1992. Informatsionnoe obozrenie [Information Overview]. Novosibirsk, 1992, p. 54.
  9. Khinteregger G. Osnovnye printsipy dostizheniya ustoychivogo promyshlennogo razvitiya v Evrope [Basic Principles of Attainment of Sustainable Industrial Development in Europe]. ITPM SO RAN [Institute of Theoretical and Applied Mechanics, Siberian Section, Russian Academy of Sciences]. Novosibirsk, 1993, 46 p.
  10. Il'in I.P. Problemy "novoy kritiki": Istoriya evolyutsii i sovremennoe sostoyanie. [Problems of “New Criticism”: History of Evolution and Its Present-day State]. Zarubezhnoe literaturovedenie 70-kh godov. Napravleniya, tendentsii, problemy [Foreign Literary Studies of the 70ies. Areas of Research, Trends, Problems] Moscow, 1984, pp. 113—155.
  11. Kozlovski P. Kul'tura postmoderna [The Culture of Postmodernism]. Moscow, Respublika Publ., 1997, 139 p.
  12. Starodubtseva L.V. Izlishki pamyati, ili Grezy starcheskoy kul'tury [Surplus Memory, or Dreams of Senile Culture]. Vestnik Khar'kovskogo universiteta [News Bulletin of Khar’kiv University]. 2000, no. 64, pp. 43—48.

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Methods of reduction of power consumption for cooling residential buildings in the hotand dry climate of northern regions of Tajikistan

  • Usmonov Shukhrat Zaurovich - Khujand Politechnic Institute of Tajik Technical University by academic M. Osimi (PITTU); Moscow State University of Civil Engineering (MGSU) Senior Lecturer, Khujand Politechnic Institute of Tajik Technical University by academic M. Osimi (PITTU); Moscow State University of Civil Engineering (MGSU), 226 Lenina st., Khujand, 735700, Tajikistan; applicant, Department of Architecture of Civil and Industrial Buildings; 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 79-85

Reduction of energy consumption by devices designated for cooling residential buildings in the hot and dry climate of Central Asia is a most important challenge. The author uses a large apartment building (105 series), built in the 1980ies in the city of Khujand, to study the energy consumption required to cool the building after its renovation and modernization. Basic methods of reducing energy consumption for cooling buildings in hot, dry climates were applied. According to the findings of the research performed using a model residential house, ambient solar heat gain is reduced by 65 % during the hot season lasting from April to September. To cool the building, old windows are replaced by new insulated ones having a low solar heat gain coefficient (SHGC — 0.4) and external awnings are installed to protect windows looking to the West.The typical internal room temperature of +25 °C is assumed for the thermal calculations in the summer conditions. In summer, the outside temperature exceeds 40 °C in the northern regions of Tajikistan. A typical difference between the inside and outside air temperature is 15 °C. This extensive temperature difference has a negative effect on the human body. Frequently, the human body has no time to adapt to rapid temperature changes. Aged and sick people are especially sensitive to rapid temperature changes. They are more likely to experience headaches, exacerbated hypertension, atherosclerosis and other diseases. Moderate fluctuations of the air temperature are preferable, as they reduce pressure on the body's thermoregulatory mechanisms.It is noteworthy that people who remain inside buildings are not isolated from the external environment, and they must be careful to avoid sudden temperature changes. In the European regulations aimed at warm, rather than hot summer conditions, internal residential air temperature of +25 °C is considered comfortable. On the contrary, the internal temperature in residential buildings in northern Tajikistan varies from +27 °C to +28 °C. High temperatures can cause significant discomfort in the hot and dry climate like the one in Tajikistan.It is recommended to remain indoors during the day, to keep the windows open at night, and to run air conditioners in residential buildings in summer at certain time intervals.The author proposes a method of optimization of the design temperature of residential rooms using PMV and PPD indices. Optimal air circulation through open windows at night is identified to ensure comfort in modernized residential buildings.

DOI: 10.22227/1997-0935.2013.9.79-85

References
  1. Obolenskiy N.V. Arkhitektura i solntse [Architecture and the Sun]. Moscow, Stroyizdat Publ., 1988, 207 p.
  2. Litskevich V.K., Makrinenko L.I., Migalina I.V.; Obolenskiy N.V., editor. Arkhitekturnaya fizika [Architectural Physics]. Moscow, Arkhitektura-S Publ., 2007, 448 p.
  3. Obolenskiy N.V. Uchet pryamogo solnechnogo sveta pri proektirovanii zdaniy v yuzhnykh rayonakh [Taking Account of Direct Sunlight in the Design of Buildings in Southern Regions]. Promyshlennoe stroitel'stvo [Industrial Engineering]. 1965, no. 1, pp. 12—14.
  4. Rogers T.S. Proektirovanie teplozashchity zdaniy [Design of Thermal Protection of Buildings]. Moscow, 1966, pp. 62—70.
  5. Markizy na okna. Markizy i shtory. Comfort Space. [Window Marquises. Marquises and Curtains. Comfort Space] Available at: http://comfortspace.ru/katalog/markizy/markizy-na-okna Date of access: 15.05.13.
  6. Markizy. Ripo International. [Marquises. Ripo International]. Available at: http://www.ripo.lv/ru/products/Protective_shutters/colours/ Date of access: 15.05.13.
  7. ASHRAE Handbook. Fundamentals. 2005, pp. 8—17.
  8. Fanger P.O. Thermal Comfort Analysis and Applications in environmental Engineering. McGraw-Hill, New York, 1970, 244 p.
  9. Fanger P.O., Crieger R.E. Thermal Comfort. Malabar, Florida, 1982.

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HYDRAULICS. ENGINEERING HYDROLOGY. HYDRAULIC ENGINEERING

Suction piles in thepresent-day hydraulic engineering

  • Levachev Stanislav Nikolaevich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Professor, Department of Hydraulic Engineering 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 .
  • Khaletskiy Valentin Stanislavovich - Moscow State University of Civil Engineering (MGSU) master student, Department of Hydraulic Engineering Structures; +7 (915) 343–81–73., 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 86-94

Presently, offshore projects have moved to a new level. Advanced technologies are employed to develop those oil and gas deposits that were inaccessible in the past. SPAR and FPSO platforms are used to develop deposits at a depth of over 2,000 meters. Versatile technologies, including suction piles, represent a major factor of successful implementation of these projects.Renewable energy sources arouse more interest. Wind energy is a most ambitions area of research. Wind farms may be installed along the coastline or a shelf. Today many offshore projects are implemented using renewable energy sources. Presently, wind power generators represent sophisticated structures having blades with a diameter of up to 150 m. One of the main objectives is to have them strongly attached to the seabed. Suction piles are often used to solve this task. Suction piles minimize the work at sea, and they are used to install both fixed and floating platforms. The authors consider modern constructions used in similar projects and present the history of suction piles and their use in different offshore projects. The authors also analyze the most recent developments in the area of anchor design for suction piles.The area of research covered in the article is highly relevant. Anchors and foundations based on suction piles can be widely used to develop offshore projects in Russia.

DOI: 10.22227/1997-0935.2013.9.86-94

References
  1. Dean E.T.R. Offshore Geotechnical Engineering. Principles and Practice. 2010, pp. 296—297, 299, 405—407.
  2. Andersen K.H., Jostad H.P. Exploration and Production – Oil and Gas Review 2007. Suction Anchor Technology’s Contribution to Offshore Oil Recovery, pp. 54—55.
  3. Havard Devold Oil and Gas Production Handbook. 2006, pp. 9—11.
  4. Thomsen J.H., Forsberg T., Bittner R. Proceedings of the 26th International Conference on Offshore Mechanics and Arctic Engineering. Offshore Wind Turbine Foundations – the Cowi Experience. 2007, pp. 7—8.
  5. Henderson A.R., Patel M.H. On the Modeling of a Floating Offshore Wind Turbine. Wind Energy Journal. 2003, pp. 53—86.
  6. Musial W., Butterfield S., Boone A. Feasibility of Floating Platform Systems for Wind Turbines. 2004, pp. 2—7.
  7. Yong Bai, Qiang Bai. Subsea Structural Engineering. 2010, pp. 130—131.

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Hydraulic resistancein channels having rough bottoms

  • Medzveliya Manana Levanovna - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Department of Hydraulic Engineering, 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 .
  • Pipiya Valeriy Valerianovich - Breesize Trading Limited Candidate of Technical Sciences, Senior Project Engineer, Breesize Trading Limited, 42 Mosfil’movskaya St., Moscow, 119285, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 95-100

The authors study the dependence of the hydraulic friction coefficient on the Froude number for open steady uniform flows in channels having a high relative roughness. In the article, the authors provide the equation, which describes the hydraulic resistance in open channels having rough bottoms.Experiments were conducted in the rectangular tray (6,000×100×200 mm). Metal balls having the diameter of 15.1 mm were used to simulate uniform roughness. Aqueous solutions of glycerol were added as operating fluids. Average roughness was identified as k = 0.8d. The range of values of the main factors was as follows: inclination 0.011 —0.06; the Froude number 0.13 — 6.02; relative smoothness 0.3 — 1.36. The authors have proven that the value of the coefficient of hydraulic friction in the zone of the laminar flow is not dependent on the Froude number.The influence of the Froude number on the hydraulic friction is manifested in the areas of the turbulent flow.

DOI: 10.22227/1997-0935.2013.9.95-100

References
  1. Zegzhda A.P. Gidravlicheskie poteri na trenie v kanalakh i truboprovodakh [Hydraulic Friction Losses in Channels and Pipelines]. Moscow, 1967, 282 p.
  2. Reinius R. Steady Uniform Flow in Open Channel. Stokholm, Tekniska Hogskola, no. 5. Handlinger Sweden. 1961, 179, pp. 3—46.
  3. Homma M. Fluid Resistance in Water Flow of High Froud Number. Proc. and Japan Nat. Congr. Appl. Mech. 1952, Sci. Council, Japan, Tokyo, 1953, pp. 251—254.
  4. Kirschmer O. Reibungsverluste in Rohren und Kanalen. Gas- und Wasserfach. 1966, vol. 107, no. 50, pp. 1405—1416.
  5. Rouse H., Koloseus. The Role of Froude Number in Open Channel Resistance. Hydr. Research. IANR. Holland. 1963, vol.1, no. 1.
  6. Rouse H. Critical Analysis of Open Channel Resistance. J. Hydr. Div. Proc. ASCE. 1965, no. 4, 91, part 1, pp. 1—25.
  7. Al'tshul' A.D. Gidravlicheskie soprotivleniya [Hydraulic Resistances]. Moscow, Nedra Publ., 1982, 223 p.
  8. Al'tshul' A.D., Lyapin V.Yu., Al'kheder B. O vliyanii formy secheniya rusla na gidrodinamicheskie kharakteristiki turbulentnykh potokov [On the Influence of the Shape of the Channel Section on Hydro-dynamic Characteristics of Turbulent Flows]. Izvestiya vuzov. Energetika [News of Institutions of Higher Education. Power Engineering]. 1992, no. 4, pp. 91—94.
  9. Medzveliya M.L., Pipiya V.V. Faktory, vliyayushchie na koeffitsient gidravlicheskogo treniya ravnomernykh otkrytykh potokov [Factors of Influence on the Coefficient of Hydraulic Friction for Open Uniform Flows]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2011, no. 8, pp. 398—402.
  10. Al'tshul' A.D. Gazogidravlicheskaya analogiya N.E. Zhukovskogo i ee znachenie dlya gidrotekhniki [N.E. Zhukovskiy’s Gas-hydraulic Analogy and Its Significance for Hydraulic Engineering]. Gidrotekhnicheskoe stroitel'stvo [Hydraulic Engineering Construction]. 1948, no. 8, pp. 14—19.
  11. Poltavtsev V.I., Efremov V.I. Ob osobennostyakh gidravlicheskogo soprotivleniya otkrytykh potokov pri bol'shoy sherokhovatosti rusla [On Features of Hydraulic Resistance of Open Flows in Case of High Roughness of the Channel]. Trudy LGMI [Works of the Leningrad Institute of Hydrometeorology]. 1967, no. 25, pp. 5—12.

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Study of the dam site shape effect on the behaviour of the perimeter joint of arockfill dam having a reinforced concrete face

  • Sainov Mikhail Petrovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Department of Hydraulic Engineering, 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 101-117

The article deals with the dam site shape effect produced on values of displacements in the perimeter joint of the 100 m high rockfill dam having a reinforced concrete face. Six alternative options of the dam site were considered: 3 sites having trapezoidal shape and 3 sites having triangular shape. The options also differ in slopes of rock sides (1:2, 1:5, 1:1). Displacements in a perimeter joint were identified based on the analyses of stress-strain states of rockfill dams, completed using the method of contact finite element to model the behaviour of joints. According to the author’s findings, displacements in the perimeter joint occur in three directions: the opening, the outline deflection of the face and the longitudinal displacement of the face. In the course of the modeling process, the perimeter joint opened in all six options, because horizontal displacements of the face (in the direction along the river channel) turned to be approximately equal to its settlement. In case of narrow (triangular) sites, the maximal opening of the joint occurs on the rock sides. In case of wide sites, opening at low levels increases to a considerable extent; large openings are observed not only on dam sides, but in the river channel, as well. An opening of the perimeter joint means reduction of values of tensile forces on the face. If the perimeter joint opens, the face is free to move in other directions. Deflections may reach large values, especially if the dam site is wide and has steep rock sides. Deflections reach maximum values in the points, where the reinforced concrete face demonstrates its maximum deflection. The studies prove that the width of the dam part in the river channel has the major effect on values of displacements in the perimeter joint.

DOI: 10.22227/1997-0935.2013.9.101-117

References
  1. Stapledon D., McGregor P., Bell G., Fell R. Geotechnical Engineering of Dams. Taylor & Francis, 2005.
  2. Chartrand C., Claisse M., Beaus?jour N., Briand M.-H., Bouzaiene H., Boisjoly C., Gonzaga G., Quenneville R., Bergeron A. Toulnustouc Dam. Canadian Consulting Engineer. October-November 2006, vol. 47, no. 6, p. 51.
  3. Nichiporovich A.A., Borovoy A.A., editor. Proektirovanie i stroitel'stvo plotin iz mestnykh materialov (po materialam VII i VIII Mezhdunarodnykh kongressov po bol'shim plotinam) [Design and Construction of Dams Made of Local Materials (based on the works of the 7th and 8th International Congresses on Large Dams)]. Moscow, Energiya Publ., 1967, pp. 90—99.
  4. Concrete Face Rockfill Dam: Concepts for Design and Construction. International Commission on Large Dams. Bulletin 141, 2010.
  5. Rockfill dams with Concrete Facing-State of the Art. International Commission on Large Dams. Bulletin 70, 1989.
  6. Sainov M.P. Osobennosti raschetov napryazhenno-deformirovannogo sostoyaniya kamennykh plotin s zhelezobetonnymi ekranami [Features of Analyses of the Stress-strain State of Rockfill Dams Having Reinforced Concrete Faces]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2006, no. 2, pp. 78—86.
  7. Vybornov K.A., Sainov M.P. Vliyanie raboty shvov na prostranstvennoe napryazhenno-deformirovannoe sostoyanie kamennoy plotiny s zhelezobetonnym ekranom [Effect of Behaviour of Seams on the Spatial Stress-strain State of a Rockfill Dam Having a Reinforced Concrete Face]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2011, no. 5, pp. 12—17.
  8. Yu H., Li Sh., Liu Y., Zhang J. Non-Linear Analysis of Stress and Strain of Concrete Faced Rockfill Dam for Sequential Impoundment Process. Mathematical and Computational Applications. 2010, vol. 15, no. 5, pp. 796—801.
  9. Park Han-Gyu, Seo Min-Woo, Kim Yong-Seong, Lim Heui-Dae. Settlement Behavior Characteristics of CFRD in Construction Period - Case of Daegok Dam. Jour. of the KGS. September 2005, vol. 21, no. 7, pp. 91—105.
  10. Szostak-Chrzanowski A., Massi?ra M., Deng N. Concrete Face Rockfill Dams – New Challenges for Monitoring and Analysis. Reports on Geodesy. 2009, no. 2/87, pp. 381—390.
  11. Gu Gangcheng. Trekhmernyy nelineynyy staticheskiy i dinamicheskiy analiz kamenno-nabrosnykh plotin s zhelezobetonnymi ekranami metodom konechnykh elementov [3D Non-linear Static and Dynamic Analysis of Rockfill Dams Having Reinforced Concrete Faces Using FEM]. Hohai University, Nankin, 1990.
  12. ?zkuzukiran R.S. Settlement Behavior of Concrete Face Rockfill Dams: a Case Study. Graduate School of Natural and Applied Sciences, Middle East Technical University, 2005.
  13. Radchenko V.G., Glagovskiy V.B., Kassirova N.A., Kurneva E.V., Druzhinin M.A. Sovremennoe nauchnoe obosnovanie stroitel'stva kamennonabrosnykh plotin s zhelezobetonnymi ekranami [Modern Academic Substantiation of Construction of Rockfill Dams Having Reinforced Concrete Faces]. Gidrotekhnicheskoe stroitel'stvo [Hydraulic Engineering Construction]. 2004, no. 3, pp. 2—8.
  14. Gol'din A.L., Rasskazov L.N. Proektirovanie gruntovykh plotin [Design of Earthfill Dams]. Moscow, ASV Publ., 2001, 384 p.
  15. Rasskazov L.N., Dzhkha Dzh. Deformiruemost' i prochnost' grunta pri raschete vysokikh gruntovykh plotin [Deformability and Strength of Soils for Analysis of High Earthfill Dams]. Gidrotekhnicheskoe stroitel'stvo [Hydraulic Engineering Construction]. 1997, no. 7, pp. 31—36.

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PROBLEMS OF THE HOUSING UTILITIES SECTOR

Housing stock of the Ukraine: composition, structure, statistics

  • Pinchak Liliana Anatol'evna - Ivan Franko Lviv National University (LNU named after Ivan Franko) 1 Universitetskaya st., Lviv, 79000, Ukraine, Ivan Franko Lviv National University (LNU named after Ivan Franko), ; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 118-124

The author considers the state of the housing market in the Ukraine, the expediency of the new legislation contemplating compilation of the unified state register of households in need of better housing conditions. The structure, statistics, and values characterizing the condition of the housing stock of the Ukraine and the residential housing provided to certain categories of the population of the Ukraine has proven that the housing needs of the Ukrainian population remain unsatisfied. The analysis of the housing market is performed to assess the government policy and the outcome of housing-related reforms in the country. The domestic practice of solving housing problems in the Soviet style was based on a system of state funding and free distribution of state-funded housing. Today many Ukrainian households have no access to the housing market, even when state support and various socio-economic housing programs are available because of harsh mortgage conditions and high RE prices. Therefore, the objective of the research consists in the analysis of the housing register aimed at the identification of the reasons for the deficiency of the housing stock and liquidation of its deficiency in the future. The research performed by the author has proven that the conclusions made independently by various researchers and scholars coincide, and RE market regularities and phenomena, specified in the national legislation, are properly understood by the market players. The housing market development continues within the legal framework. In the course of the last 12 years the number of Ukrainian households registered as those in need of better housing conditions has gone down, although the housing stock accrues every year.

DOI: 10.22227/1997-0935.2013.9.118-124

References
  1. Bessonova O.E. Zhil'e: rynok i razdacha [ Housing: Market and Distribution]. Novosibirsk, Nauka Publ., 1993, 160 p.
  2. Martynenko V.F. Evolyutsiya gosudarstvennogo upravleniya na rubezhe epokh [Evolution of the Government Management at the Turn of the Epochs]. Innovatsii [Innovations]. 2007, no. 8, pp. 64—66.
  3. Belishev O.V., compiler. Molodezh' v usloviyakh stanovleniya Nezavisimosti Ukrainy (1991—2011 gody). Ezhegodn. dokl. Prezidentu Ukrainy, Verkhovnoy Rade Ukrainy, Kabinetu Ministrov Ukrainy o polozhenii molodezhi v Ukraine [Young People in the Context of Formation of Independent Ukraine (1991—2011). Annual report to the President of the Ukraine, Verkhovnaya Rada, Cabinet of Ministers of the Ukraine on the status of young people in the Ukraine]. M-vo obrazovaniya i nauki, molodezhi i sporta Ukrainy [Ministry of Education and Science, Youth and Sports of the Ukraine]. Gosudarstvennyy institut razvitiya semeynoy i molodezhnoy politiki [State Institute for Development of Family and Youth Policy]. Kiev, 2011, 276 p. Date of access: July 06, 2013.
  4. Gerasimenko A.V. Otsenka vliyaniya sotsial'nykh programm na dinamiku rozhdaemosti v Ukraine [Assessment of Influence Produced by Social Security Programs on Fertility Dynamics in the Ukraine]. Demografiya i sotsial'naya ekonomika [Demography and Social Economy]. 2010, no. 1(13), pp. 55—65.
  5. RE Market Situation. Evans. Available at: http://www.gzt.ru/topnews/realty/-dlya-resheniya-kvartirnogo-voprosa-rossiyaninu-/338482.html]. Date of access: June 6, 2013.
  6. Kalachova ².V., publications assistant. Zhitloviy fond Ukra¿ni u 2011 rots³. Statistichniy byuleten' [ Housing Stock in the Ukraine in 2011. Statistical Bulletin]. Derzhavna sluzhba statistiki Ukra¿ni publ., 2012, 351 p.
  7. Balakireva A.M., Goloven'ko V.A., Levin R.Ya. Sotsiologicheskoe izmerenie sotsial'no-ekonomicheskikh protsessov v Ukraine [ Sociological Measurement of Socioeconomic Processes in the Ukraine]. NAN Ukrainy [National Academy of Sciences of the Ukraine]. 2009, 320 p.
  8. Gosudarstvennaya statisticheskaya sluzhba Ukrainy [State Statistics Service of the Ukraine, 1998—2013]. Date of update: July 10, 2013. Available at: http://www.ukrstat.gov.ua/ Date of access: July 11, 2013.
  9. Proekt no. 5067 ot 31 avgusta 2009 goda "Zakona o vnesenie izmeneniy v nekotorye Zakonodatel'nye akty Ukrainy (Otnositel'no uregulirovaniya nalogooblozheniya otdel'nykh operatsiy)" [Draft no. 5067 of August 31, 2009 of the Law on amendments into particular legislative acts of the Ukraine (on taxation of particular operations). Date of update: October 01, 2012. Available at: http://search.ligazakon.ua/l_doc2.nsf/link1/JF3WR00I.html Date of access: July 12, 2013.
  10. Gosudarstvennaya sluzhba statistiki Ukrainy. Elektronnyy zhurnal [State Statistics Service of the Ukraine. Electronic Log no. 03.6-33/690 of May 15, 2013]. Available at: http://www.ukrstat.gov.ua Date of access: July 10, 2013.
  11. Postanovlenie KMU «Ob utverzhdenii Pravil predostavleniya dolgosrochnykh kreditov individual'nym zastroyshchikam zhil'ya na sele» ¹ 1597 ot 5.10.1998 g. [Resolution of the Cabinet of Ministers of the Ukraine “On Approval of Procedures for Issuance of Long-term Loans to Individual House Owners in Rural Areas”]. Date of Most Recent Update: October 16, 2010. Available at: http://zakon2.rada.gov.ua/laws/show/1597-98-% D0% BF Date of access: July 07, 2013.
  12. Tselevaya programma razvitiya ukrainskogo sela na period do 2015 goda [Target Program for Development of Ukrainian Villages through 2015]. Available at: http://www.ukrstat.gov.ua/ Date of access: June 11, 2013.
  13. Skarzhinskiy M. Ponyatie zhil'ya v grazhdanskom prave Ukrainy [Notion of Housing in the Civil Law of the Ukraine]. Predpriyatie, khozyaystvo i pravo [Enterprise, Economy, and Law]. 2004, no. 9, pp. 75—77.

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ECONOMICS, MANAGEMENT AND ORGANIZATION OF CONSTRUCTION PROCESSES

Pricing management in the construction industry

  • Ivanov Andrey Vladimirovich - Inter-regional Bar Candidate of Legal Sciences, trial lawyer, Yaroslavl, Inter-regional Bar, 30 Ushinsky st., 150000, Yaroslavl, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 125-129

The essences of management influence the pricing process in the construction industry. The balance in the market of construction products, both in terms of supply and demand, is the objective of this influence. Construction organizations are ready to reduce prices for their products. However they must be confident that their products will generate profits on the ongoing basis. Authorities responsible for pricing management must help construction organizations to identify their reserves and excessive production expenses to help these companies to cut their prices. These efforts will reduce the inflation to the level needed to resolve the problem of affordable prices for building products. The Russian economy must be based on innovative grounds. Control over the economic concentration is an effective action. It’s used to prevent monopolization in the construction market.

DOI: 10.22227/1997-0935.2013.9.125-129

References
  1. Deryabina M. Institutsional'nye osnovy real'nogo sektora ekonomiki [Institutional Fundamentals of the Real Sector of the Economy]. Voprosy ekonomiki [Issues of Economy]. 2012, no. 11, pp. 48—66.
  2. Shulus A. Shulus V. Sovremennye problemy povysheniya konkurentosposobnosti i effektivnosti investitsionnogo kompleksa Rossii [Modern Problems of Competitiveness Improvement of Russia’s Investment Sector]. Investitsii v Rossii [Investments in Russia]. 2012, no. 12, pp. 11—20.
  3. Varnavskiy V. Stabilizatsionnyy fond, kak instrument ekonomicheskoy politiki [Stabilization Fund as the Instrument of Economic Policy]. Mirovaya ekonomika i mezhdunarodnye otnosheniya [World Economy and International Relations]. 2007, no. 5, pp. 34—45.
  4. Bodrunov S.D. Modernizatsiya rossiyskoy ekonomiki na sovremennom etape [Modernization of the Russian Economy at the Present-day Stage]. Ekonomicheskoe vozrozhdenie Rossii [Economic Revival of Russia]. 2012, no. 3, pp. 6—10.
  5. Drobyshevskiy S. Sinel'nikov-Murav'ev S. Makroekonomicheskie predposylki realizatsii novoy modeli rosta [Macroeconomic Prerequisites of Implementation of the New Growth Model]. Voprosy ekonomiki [Issues of Economy]. 2012, no. 9, pp. 4—25.
  6. Balserowicz L., Rzonca A. Zagadki ekonomicheskogo rosta. Dvizhushchie sily i krizisy — sravnitel'nyy analiz. [Mysteries of Economic Growth. Driving Forces and Crises: Comparative Analysis]. Moscow, Mysl' Publ., 2012, 512 p.
  7. Yasin E.G., Akindinova N.V., Yakobson A.I., Yakovlev A.A. Sostoitsya li novaya model' ekonomicheskogo rosta v Rossii? [Will the New Model of Economic Growth in Russia Succeed?]. XIV Aprel'skaya mezhdunarodnaya nauchnaya konferentsiya po problemam razvitiya ekonomiki i obshchestva. 2—5 aprelya 2013 g. [14th April International Science Conference on Problems of Development of Economy and Society. April 2—5, 2013]. Moscow, Izdatel'skiy dom Vysshey shkoly ekonomikipubl., 2013, 67 p. Available at: http://www.hse.ru/science/reports. Date of access: 2.07.2013.
  8. Avdasheva S., Shastiko A. Modernizatsiya antimonopol'noy politiki Rossii (ekonomicheskiy analiz predlagaemykh izmeneniy konkurentnogo zakonodatel'stva) [Modernization of the Anti-monopoly Policy of Russia (economic analysis of proposed modifications of the competition legislation)]. Voprosy ekonomiki [Issues of Economy], 2005, no. 5, pp. 100—117.
  9. Ostapkovich G. Kudryashova O. Delovaya aktivnost' stroitel'nykh organizatsiy [Business Activity of Construction Organizations]. Investitsii v Rossii [Investments in Russia]. 2010, no. 12, pp. 16—20.
  10. Olson M. The Rise and Decline of Nations. Yale University Press, New Haven, Conn., 1982.

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Influence of the set of marketing tools on competitive abilitiesof enterprises

  • Khusnutdinov Rinat Almazovich - Moscow State University of Civil Engineering (MGSU) Candidate of Economic Sciences, Associate Professor, Associate Professor, Department of Management and Innovations, Director, Department of Purchases, 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 130-134

At present, most markets demonstrate fierce competition; therefore, only those companies that have distinctive competitive advantages develop successfully in this environment. Development and maintenance of competitive advantages is a key objective of any enterprise. A competitive company is a sustainable and profitable undertaking.Competitive ability of an organization is a factor of its success in the market. Presently, the majority of markets experience tough competition, and any success in this environment requires a clear marketing strategy. Gaining and maintaining competitive advantages is the key objective of an enterprise.The degree of improvement of goods has also reached the limit beyond which consumers are no longer able to recognize the real qualitative change. As a result, businesses have to make skyrocketing efforts towards advertising. Only advertizing can showcase the degree of modernization of consumer products and convince customers of superiority of one product over another. The fight for a consumer is transferred from the "price vs. quality" domain into the domain of the company's ability to showcase new features of consumer products. The present-day system of competition management through pricing has lost some of its paramount importance to nonprice competitive practices. Market success makes companies polish their competitive strengths and abilities through effective marketing strategies that take account of the marketing techniques employed by their competitors, as well as the needs of their current and future customers. Most of them are focused on advanced computer technologies, the most important element of which is the Internet.

DOI: 10.22227/1997-0935.2013.9.130-134

References
  1. Kotler F., Keller K.L. Marketing. Menedzhment [Marketing Management]. St.Petersburg, Piter Publ., 2012, 816 p.
  2. Khusnutdinov R.A. Vozmozhnosti povysheniya konkurentosposobnosti ekonomiki strany v usloviyakh globalizatsii ekonomicheskikh protsessov [Options for Improvement of Competitive Abilities of a Country in the Framework of Globalization of Economic Processes]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2011, no. 6, pp. 109—112.

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INFORMATION SYSTEMS AND LOGISTICS IN CIVIL ENGINEERING

Using LabVIEW software to collect and process measurement data as partof development of systems of monitoring of bearing structures

  • 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 .
  • Emel'yanov Valentin Alekseevich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Junior Researcher, Scientific and Educational Center for Engineering Research and Monitoring of Structural Units, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoye shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Ermakov Mikhail Valer'evich - Moscow State University of Civil Engineering (MGSU) Junior Researcher, Scientific and Educational Center for Engineering Research and Monitoring of Structural Units, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoye shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Zeid Kilani Leys Zeydovich - Moscow State University of Civil Engineering (MGSU) Junior Researcher, Scientific and Educational Center for Engineering Research and Monitoring of Structural Units, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoye shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Krasochkin Aleksandr Gennad'evich - Moscow State University of Civil Engineering (MGSU) technician, Scientific and Educational Center for Engineering Research and Monitoring of Structural Units, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoye shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Romanets Vladimir Anatol'evich - Moscow State University of Civil Engineering (MGSU) technician, Scientific and Educational Center for Engineering Research and Monitoring of Structural Units, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoye shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 134-142

Present-day urban construction trends make buildings taller and the urban environment denser. These developments result in the growth of negative effects produced on existing structures. That’s why the monitoring of the technical condition of structures is of vital importance. Now the most efficient way of forecasting and preventing emergency situations consists in the installation of automated monitoring systems operating in continuous and periodic modes.Monitoring systems may comprise various sensors, devices and measurement elements. Any signal must be coordinated to make sure that the data are accurate and reliable. Moreover, the proposed system (or network) composed of various items of equipment (often produced by various manufacturers) demands appropriate integrated software. The database of LabVIEW drivers can be employed for this purpose.LabVIEW environment is applied for the measurement, testing and management of applications that constitute embedded programming tools needed to develop complex applications designated for computer-aided measurements and data processing. The library of drivers is employed to assure the availability of the most common types of interfaces, sensors and devices. If a user lacks a particular driver, it can be either integrated or developed. The authors have successfully collected and processed the data in the LabVIEW environment of a measurement system based on tensometric sensors attached to experimental items of equipment.

DOI: 10.22227/1997-0935.2013.9.134-142

References
  1. Korgin A.V., Korgina M.A. Integrirovannaya informatsionnaya tekhnologiya monitoringa tekhnicheskogo sostoyaniya zdaniy i sooruzheniy [Integrated Information Technology for the Monitoring of the Technical Condition of Buildings and Structures]. Nauchnye trudy 12 Mezhdunarodnoy mezhvuzovskoy nauchno-prakticheskoy konferentsii molodykh uchenykh, doktorantov, aspirantov «Stroitel'stvo – formirovanie sredy zhiznedeyatel'nosti» [Research works of the 12th International Inter-university Science and Practical Conference of Young Researchers, Doctoral Students and Postgraduates “Construction – Formation of the Environment”. Moscow, 2009, pp. 75—78.
  2. Korgin A.V., Emel'yanov M.V. Intellektual'naya sistema avtomaticheskogo monitoringa tekhnicheskogo sostoyaniya stroitel'nykh konstruktsiy [Intelligent System for Computer-aided Monitoring of the Technical Condition of Structural Units]. Mekhanizatsiya stroitel'stva i ZhKKh [Mechanization of Construction Operations and Housing Utilities]. 2010, no. 9, pp. 18—20.
  3. Shakhraman'yan A.V. Tekhnologicheskie i metodicheskie osnovy postroeniya sistem monitoringa nesushchikh konstruktsiy vysotnykh i unikal'nykh ob"ektov [Technological and Methodological Fundamentals of Development of Systems of Monitoring of Bearing Structures of High-rise and Unique Buildings]. Predotvrashchenie avariy zdaniy i sooruzheniy: elektronnyy zhurnal [Prevention of Emergencies of Buildings and Structures: electronic journal]. Available at: http://www.pamag.ru/pressa/tech-construct. Date of access: 21.07.13.
  4. Data Acquisition and Signal Conditioning Course Manual. National Instruments Course Software. Ver. 2011. February 2012, pp. 74—76.
  5. Suranov A.Ya. LabVIEW 8.20 Spravochnik po funktsiyam [LabVIEW 8.20. Reference Book of Functions]. DMK Press Publ., 2007, pp. 57—133.
  6. Trevis Dzh., Kring Dzh. LabVIEW dlya vsekh [LabVIEW for Everybody]. DMK Press Publ., 2008, pp. 27—95.
  7. Preimushchestva kontseptsii graficheskogo programmirovaniya NI LabVIEW [Advantages of the Concept of Graphic Programming in LabVIEW]. Available at: http://www.LabVIEW.ru/LabVIEW/what_is_LabVIEW/rapid_development.php Date of access: 23.04.2013.
  8. Peych L.I., Tochilin D.A., Pollak B.N. LabVIEW dlya novichkov i spetsialistov [LabVIEW for Beginners and Specialists]. Moscow, Goryachaya Liniya — Telekom Publ., 2004, pp. 33—46.
  9. Zagidullin R.Sh. LabVIEW v issledovaniyakh i razrabotkakh [LabVIEW in Researches and Developments]. Moscow, Goryachaya Liniya – Telekom Publ., 2005, pp. 216—251.
  10. Batovrin V.K., Bessonov A.S., Moshkin V.V., Papulovskiy V.F. LabVIEW praktikum po osnovam izmeritel'nykh tekhnologiy [LabVIEW Practice Book on Fundamentals of Measurement Technologies]. DMK Press Publ., 2010, pp. 36—49.

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On a problem of active system management

  • Khayrullin Rustam Zinnatullovich - Moscow State University of Civil Engineering (MGSU) Doctor of Physical and Mathematical Sciences, senior scientific worker, 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 .
  • Adigamov Arkadiy Engelevich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Associate Professor, Department of Higher Mathematics; +7(495)236-95-21, 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 .
  • Bitieva Zarina Ruslanovna - Moscow State University of Civil Engineering (MGSU) assistant, Laboratory of Communicative and Information Technologies; +7(495)939-46-98., 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 143-148

A mathematical model of an active system is considered in the article. An active system represents an organizational model. The authors research into the problem of inconsistency between the concerns of the management authority and those of the managed subject. The managed subject acts for its benefit and supplies realistic information to the management authority. The main method of research into the above systems is based on the mathematical simulation of administrative decision making procedures. The theoretical grounds represent the systems analysis, the game theory, the decisionmaking theory, operations research, discrete mathematics and the management theory. The active system theory is based on a coordinated mechanism of choice. If the coordinated mechanism of choice is unavailable, the mechanism closest to the coordinated one must be developed. In this case, the authors believe it appropriate to consider additional criteria characterizing the "proximity" of a decision to coordinated and cumulative criteria, which are equal to the sum of additional criteria adjusted by particular coefficients of importance. A set of plans that cannot be coordinated at the same time is composed on the basis of the analysis of additional criteria and the cumulative criterion. Model testing and mathematical simulation are presented in the article.

DOI: 10.22227/1997-0935.2013.9.143-148

References
  1. Burkov V.N., Novikov D.A. Teoriya aktivnykh sistem: sostoyanie i perspektivy [Theory of Active Systems: Status and Prospects]. Moscow, SINTEG Publ., 2001.
  2. Burkov V.N., Zalozhnev A.Yu., Novikov D.A. Teoriya grafov v upravlenii organizatsionnymi sistemami [Theory of Graphs in Management of Organizational Systems]. Moscow, SINTEG Publ., 2001.
  3. Novikov D.A. Teoriya upravleniya organizatsionnymi sistemami [Theory of Management of Organizational Systems]. Moscow, Fizmatlit Publ., 2007.
  4. Myerson R.B. Games Theory: Analysis of Conflict. London, Harvard University Press, 1991.
  5. Fudenberg D., Tirole J. Game Theory. Cambridge, MIT Press, 1995.
  6. Nisan N., Roughgarden T., Tardos E., Vazirani V. Algorithmic Game Theory. New-York, Cambridge University Press, 2009.
  7. Drucker P. The Effective Executive: The Definitive Guide to Getting the Right Things Done. New-York, Collins Business, 2006.
  8. Adigamov A.E., Yudenkov A.V., Ivanov V.V. Matematicheskaya model' konfliktnoy situatsii na mikrourovne v nechetkoy postanovke [Mathematical Model of a Conflict Situation on the Misrolevel in the Fuzzy Setting]. Gornyy informatsionno-analiticheskiy byulleten' [Mining Bulletin of Information and Analysis]. 2010, no. 1, pp. 80—83.
  9. Khayrullin R.Z. Tekhnologiya issledovaniya upravlyaemykh sistem [Technology of Research into Managed Systems]. Gornyy informatsionno-analiticheskiy byulleten' [Mining Bulletin of Information and Analysis]. 1999, no. 4, pp. 111—113.
  10. Vybory v Rossiyskoy Federatsii 2007. Elektoral'naya statistika. Tsentral'naya izbiratel'naya komissiya Rossiyskoy Federatsii [Elections in the Russian Federation 2007. Electoral Statistics. Central Election Committee of the Russian Federation.] Moscow, SitiPressServis Publ., 2008.

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ENGINEERING GEOMETRY AND COMPUTER GRAPHICS

Using topological transformations of the sphereto design surfaces having two families of light lines

  • Teplyakov Aleksandr Avramovich - Moscow State University of Civil Engineering (MGSU) Associate Professor, Department of Descriptive Geometry and Graphics, 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 .
  • Vavanov Dmitriy Alekseevich - Moscow State University of Civil Engineering (MGSU) Senior Lecturer, Department of Descriptive Geometry and Graphics, 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 149-152

He authors discuss construction of surfaces having two families of light lines using topological transformations of the sphere. The light framework of surfaces, meeting esthetic requirements, is designed in various ways, which can be reduced to the design of a framework of proportional and congruent curves. Topological transformation of the sphere into a surface of the same topological class is considered as a method for design of continuous surfaces having two families of light lines. Transformation of points of the constructed surface is performed together with the space of three mutually perpendicular beam planes, as well as beams of radial planes. This method, employed for the construction of the frame surface and light lines, may be used to generate aesthetically attractive surfaces. The shape of the contour surface can be varied within certain limits, although it maintains its pre-set parameters.

DOI: 10.22227/1997-0935.2013.9.149-152

References
  1. Polezhaev Yu.O., Borisova A.Yu. Lineynye variatsii modelirovaniya svoystv elliptichnosti [Modeling the Properties of Ellipticity: Linear Variations]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2012, no. 8, pp. 34—38.
  2. Gil'bert D. Osnovaniya geometrii [Fundamentals of Geometry]. Available at: http://ilib.mccme.ru/djvu/geometry/osn_geom.htm. Date of access: 2.11.2012.
  3. Alexander S., Ghomi M. The Convex Hull Property and Topology of Hypersurfaces with Nonnegative Curvature. Adv. Math. 2003, p. 327.
  4. Gil'bert D., Kon-Fossen S. Naglyadnaya geometriya [Visual Geometry]. Moscow, 2010, p. 102.
  5. Peklich V.A. Mnimaya nachertatel'naya geometriya [Imaginary Descriptive Geometry]. Moscow, 2007, p. 114.
  6. Alexander S., Ghomi M. The Convex Hull Property of Noncompact Hypersurfaces with Positive Curvature. Amer. J. Math. 2004, p. 216.
  7. Ekholm T. Regular Homotopy and Total Curvature. I. Circle Immersions into Surfaces. Algebr. Geom. Topol. 2006, p. 461. Available at: http://www.maths.tcd.ie/EMIS/journals/AGT/ftp/main/2006/agt-06-16.pdf. Date of access: 26.06.2013.
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