STRUCTURALLY-FUNCTIONAL AND SET-THEORETIC MODELS OF THE REGIONAL CONSTRUCTION CLUSTER AS A HETERARCHICAL SYSTEM

Vestnik MGSU 12/2017 Volume 12
  • Anufriev Dmitry Petrovich - Astrakhan State University of Architecture and Civil Engineering (ASUACE) Candidate of Technical Sciences, Associate Professor, Rector, Astrakhan State University of Architecture and Civil Engineering (ASUACE), 18 Tatishchev st., Astrakhan, 414056, Russian Federation.
  • Shikul’skaya Ol’ga Mikhaylovna - Astrakhan State University of Architecture and Civil Engineering (ASUACE) Doctor of Technical Science, Professor, Department Chair, Fire Safety and Water Use Department, Astrakhan State University of Architecture and Civil Engineering (ASUACE), 18 Tatishchev st., Astrakhan, 414056, Russian Federation.

Pages 1435-1447

Subject: due to the existence of shabby and hazardous dwelling, the housing problem is one of the most relevant problems in the social sphere of the Astrakhan region. The Astrakhan regional construction cluster includes the significant number of the construction organizations, the servicing organizations, which are engaged in the training of personnel for construction, the banks and other credit institutions, which provide the population with mortgage loans, and also regional, municipal authorities and public organizations. The regional construction cluster is the developing social and economic system of heterarchical type. The heterarchy combines both elements of hierarchy and elements of the market relations. Therefore, the task of creation of a common information space of a regional construction cluster on the basis of mathematical, functional and information-logical models is relevant. Research objectives: use functional and mathematical modeling of heterarchical system of a regional construction cluster for development of its information portal. Materials and methods: for creation of structurally-functional model of a regional construction cluster, the methodology of structural analysis in notations of IDEF0, IDEF3, Swimlane was used. As a tool for structurally-functional simulation, we used CASE-tool - AllFusion Process Modeler r7. The mathematical description of logic of regional construction cluster management is based on the theory of sets. Results: the complex of functional models with the set-theoretic description of the system was developed. The business-process model in a notation of IDEF0 well reflects the process hierarchy that best describes the hierarchical communications prevailing in stable functioning of the regulated processes. For its creation the SADT technology was used. When the external disturbances affect the socio-economic system (SES), inertial hierarchical management ceases being effective and the advantage is given to horizontal managing directors of communication for description of which and for reflection of logic of processes it is more appropriate to use the model of the IDEF3 notation. For explicit description of roles and responsibility of performers of specific processes, it is expedient to use the chart SwimLane, which is variety of the chart IDEF3, in order to achieve the unified information environment of a regional construction cluster. The logic of process interaction reflected in the chart SwimLane was described mathematically by creation of a set-theoretic model. Conclusions: All developed models form a basis for further information-logical and physical design of the unified information environment of the Astrakhan regional construction cluster. Computer support of the functioning of such a complex system will allow us to considerably increase its efficiency.

DOI: 10.22227/1997-0935.2017.12.1435-1447

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Analysis of available space structure joints and designof demountable modular joints

Vestnik MGSU 3/2013
  • Inzhutov Ivan Semenovich - Siberian Federal University (SibFU) Doctor of Technical Sciences, Professor, Department of Building Structures and Control Systems, Director, Civil Engineering Institute, Siberian Federal University (SibFU), 79 pr. Svobodnyy, Krasnoyarsk, 660041, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Dmitriev Petr Andreevich - Institute of Civil Engineering, Siberian Federal University (SFU) Doctor of Technical Sciences, Professor, Department of Structural Units and Controlled Systems; +7 (391) 252-78-11, Institute of Civil Engineering, Siberian Federal University (SFU), .
  • Deordiev Sergey Vladimirovich - Institute of Civil Engineering, Siberian Federal University (SFU) +7 (391) 252-78-64, Institute of Civil Engineering, Siberian Federal University (SFU), ; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Zakharyuta Vasiliy Viktorovich - Institute of Civil Engineering, Siberian Federal University (SFU) postgraduate student, Department of Structural Units and Controlled Systems, Institute of Civil Engineering, Siberian Federal University (SFU), ; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 61-71

The article is an overview of various designs developed for joints of rod elements of space structures. Designs under consideration include those developed by domestic and foreign researchers and structural engineers. Space joints are clustered on the basis of their characteristic features, and their principal strengths and weaknesses are specified by the authors.The authors’ overview serves as the basis for an advanced structural solution developed for modular joints of space elements. A space joint consists of four space details having holes that are fastened to the central element by two bolts (screws). A flat plate with holes is attached to the edge of the central element. Space details and the core element are to have a gap between them. Rod ends are inserted into gaps and fastened to joints with bolts. The proposed solution may be used to reduce the material consumption rate (steel and plastic) and to simplify the assembly of structures. The solution proposed by the authors also improves the reliability of joints due to the integrity of elements, their rigid fastening to the central element, and the use of two cross-section bolts.

DOI: 10.22227/1997-0935.2013.3.61-71

References
  1. Makowski Z.S. Development of Jointing Systems for Modular Prefabricated Steel Space Structures. Proceedings of the international symposium. Warsaw, Poland, 2002, pp. 17—41.
  2. Chilton J. Space Grid Structures. Produced by Plant a Tree. Great Britain, 2000.
  3. Trofimov V.I., Kaminskiy A.M. Legkie metallicheskie konstruktsii zdaniy i sooruzheniy [Lightweight Metal Constructions of Buildings and Structures]. Moscow, ASV Publ., 2002, pp. 130—132.
  4. Khvatkin Yu.S. Avtorskoe svidetel’stvo 2087634 RU. Uzel soedineniya sterzhney prostranstvennogo karkasa [Authorship Certificate 2087634 RU. Joint for Rods of a Space Frame].
  5. Kudishin V.I., Trofimov V.I. Avtorskoe svidetel’stvo 497390 SU. Uzlovoe soedinenie prostranstvennoy sterzhnevoy konstruktsii [Joint for a Space Rod Structure].
  6. Ramaswamy G.S., Eekhout M., Suresh G.R. Steel Space Frames, Analysis, Design and Construction. London, Thomas Telford Publishing, 2002.
  7. Shteger J.E.O. Avtorskoe svidetel’stvo 1794151 SSSR. Uzel soedineniya sterzhney prostranstvennogo karkasa [Authorship Certificate 1794151 USSR. Joint for Rods of a Space Frame].
  8. Vestrut Space Grid Systems. Available at: http://www.vestrut.it. Date of access: October 11, 2012.
  9. TU 5285-001-47543297—09. Sterzhni i uzlovye elementy sistemy MARKhI [Technical Specifications 5285-001-47543297—09. Rods and Joint of the MARKHI System]. Moscow, 2009.
  10. Zherbin M.M., Tereshchenko A.P., Nilov A.A., Yatsoshek I. Avtorskoe svidetel’stvo 690135 SU. Uzlovoe soedinenie trubchatykh sterzhney prostranstvennogo karkasa [Authorship Certificate 690135 SU. Joint of Tubular Rods of a Space Frame].
  11. Tereshchenko A.P., Yatsoshek I., Nilova A. Avtorskoe svidetel’stvo 702133 SU. Uzlovoe soedinenie trubchatykh sterzhney prostranstvennogo karkasa [Authorship Certificate 702133 SU. Joint of Tubular Rods of a Space Frame].
  12. Nikiforov V.G., Potapov V.N., Koval’ E.A., Leonova V.N. Avtorskoe svidetel’stvo 1063958 SU. Uzlovoe soedinenie sterzhney prostranstvennogo karkasa [Authorship Certificate 1063958 SU. Joint of Rods of a Space Frame].
  13. Deev V.P., Ptichkin V.P., Kondrashov M.T., Tolstykh A.A., Korotkov V.V. Avtorskoe svidetel’stvo 779529 SSSR. Uzlovoe soedinenie sterzhney prostranstvennogo pokrytiya [Authorship Certificate 779529 USSR. Joint of Rods of a Shell Roof].
  14. Klyachin A.Z., Gorelov N.G. Avtorskoe svidetel’stvo 1805180 SSSR. Reshetchataya prostranstvennaya konstruktsiya [Authorship Certificate 1805180 USSR. Grid Space Structure].
  15. Kalugin M.V., Kormilitsyn B.I. Avtorskoe svidetel’stvo 543720 SSSR. Uzlovoe soedinenie sterzhney prostranstvennogo karkasa [Authorship Certificate 543720 USSR. Joint for Rods of a Space Frame].
  16. Kalugin M.V., Shirokov B.I., Anelikov V.I., Surin N.I. Avtorskoe svidetel’stvo 937647 SSSR. Uzlovoe soedinenie sterzhney prostranstvennogo karkasa [Authorship Certificate 937647 USSR. Joint for Rods of a Space Frame].

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Determination of heat losses of a window frame to the wall joint when replacing the outdated constructions of window blocks with modern ones

Vestnik MGSU 11/2015
  • Bedov Anatoliy Ivanovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Professor, Department of Reinforced Concrete and Masonry Structures, 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 .
  • Gaysin Askar Miniyarovich - Ufa State Petroleum Technological University (USPTU) Candidate of Technical Sciences, Associate Professor, Department of Building Structures, Ufa State Petroleum Technological University (USPTU), Office 225, 195, Mendeleeva St., Ufa, 450062, Russian Federation.
  • Gabitov Azat Ismagilovich - Ufa State Petroleum Technological University (USPTU) Doctor of Technical Sciences, Professor, Department of Building Structures, Ufa State Petroleum Technological University (USPTU), 195 Mendeleeva str., Ufa, 450062, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Galeev Rinat Grigor’evich - Ufa State Petroleum Technological University (USPTU) Candidate of Technical Sciences, Associate Professor, Department of Highways and Technology of Construction Production, Ufa State Petroleum Technological University (USPTU), 195 Mendeleeva str., Ufa, 450062, Russian Federation.
  • Salov Aleksandr Sergeevich - Ufa State Petroleum Technological University (USPTU) Candidate of Technical Sciences, Associate Professor, Department of Highways and Technology of Construction Production, Ufa State Petroleum Technological University (USPTU), 195 Mendeleeva str., Ufa, 450062, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Shibirkina Marina Sergeevna - Ufa State Petroleum Technological University (USPTU) engineer, Department of Highways and Technology of Construction Production, Ufa State Petroleum Technological University (USPTU), 195 Mendeleeva str., Ufa, 450062, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 46-57

In the Soviet Union a lot of residential buildings with wooden window systems were built. In the last 15 years the requirements to heat protection of buildings have strengthened and the technologies of window systems production have developed. New window constructions appeared, in which window frames of PVC profiles are used. So now double-casement windows with glass are replaced by single-casement with glass units. The replacement of windows is associated with a number of specific problems. The authors analyzed the quantitative parameters of the heat losses in the claddings of brick buildings. It was revealed that significant heat leakage occurs in the joint areas of window frame with the wall, at the junction of slopes. The authors offer a quantitative calculation of heat losses in these units in case of two-dimensional heat flux based on thermal conductivity matrix taking into account the convective heat transfer. On the basis of this calculation a computer program was developed that allows pinpointing the most problematic areas for choosing rational actions for elimination of cold bridges.

DOI: 10.22227/1997-0935.2015.11.46-57

References
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  3. Gaysin A.M., Gareev R.R., Babkov V.V., Nedoseko I.V., Samokhodova S.Yu. Dvadtsatiletniy opyt primeneniya vysokopustotnykh vibropressovannykh betonnykh blokov v Bashkortostane [Twenty Years Experience of Applying High-Hollow Vibrocompressed Concrete Blocks in Bashkortostan]. Stroitel’nye materialy [Construction Materials]. 2015, no. 4, pp. 82—86. (In Russian)
  4. Bedov A.I., Babkov V.V., Gabitov A.I., Gajsin A.M., Rezvov O.A., Kuznecov D.V., Gafurova Je.A., Sinicin D.A. Konstruktivnye reshenija i osobennosti rascheta teplozaschity naruzhnyh sten zdanij na osnove avtoklavnyh gazobetonnyh blokov [Structural Solutions and Special Features of the Thermal Protection Analysis of Exterior Walls of Buildings Made of Autoclaved Gas-Concrete Blocks]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2012, no. 2, pp. 98—103. (In Russian)
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  7. Nedoseko I.V., Pudovkin A.N., Kuz’min V.V., Aliev R.R. Keramzitobeton v zhilishchno-grazhdanskom stroitel’stve v Respublike Bashkortostan. Problemy i perspektivy [Claydite-concrete in Civil Engineering in the Republic of Bashkortostan. Problems and Prospects]. Zhilishchnoe stroitel’stvo [Housing Construction]. 2015, no. 4, pp. 16—20. (In Russian)
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  9. Samarin V.S., Babkov V.V., Gaysin A.M., Egorkin N.S. Perspektivy krupnopanel’nogo domostroeniya v Respublike Bashkortostan [The Prospects of Large-Panel Housing Construction in the Republic Bashkortostan]. Zhilishchnoe stroitel’stvo [Housing Construction]. 2011, no. 3, pp. 12—14. (In Russian)
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