DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

RATIOS OF HARDNESS NUMBERS IN CALCULATIONS OF STATIC AND CYCLICAL STRENGTH OF STRUCTURAL TYPES OF STEELS

Vestnik MGSU 1/2013
  • Gustov Yuriy Ivanovich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Department of Machinery, Machine Elements and Process Metallurgy, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499) 183-94-95; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Kurtenok Nikolay Prokof’evich - Moscow State University of Civil Engineering (MGSU) Associate Professor, Department of Mechanical Machinery, Details of Machines and Technology of Metals; +7 (499) 183-94-95, 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 .
  • Voronina Irina Vladimirovna - Moscow State University of Civil Engineering (MGSU) Senior Lecturer, Department of Building and Hoisting Machinery, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499) 182-16-87; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Allattouf Hassan Lattouf - Moscow State University of Civil Engineering (MGSU) postgraduate student, Department of Mechanical Machin- ery, Details of Machines and Technology of Metals, 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 72-78

Results of calculations of values of static and cyclical strength of steels used in the structural design and based on the method of experimental and analytical coordination of hardness numbers are presented in the article. Strength measurements taken on the basis of the Rockwell method make it possible to research into the strength characteristics of small-size samples of steel in cases of restoration and inspection of the technical condition of the metalwork. Besides, the Rockwell method is universal and faster than the Brinell method.Thus, the availability of hardness values of small-size samples makes it possible to provide a definition of standard indicators of static and cyclical strength. Moreover, development of the definition of structural and power (synergetic) criteria of reliability of metalsusing the equation of relative strength turn into reality. The solution to this equation ofuniform plastic deformations of dmakes it possible to identify S , S , W , W values.р B K P C The initial experimental value of the hardness number may be used to calculate avariety of static and cyclical properties of steel and to identify the standard strength group and the approximate steel type counterpart.

DOI: 10.22227/1997-0935.2013.1.72-78

References
  1. Gulyaev A.P. Metallovedenie [Metallurgy]. Moscow, Metallurgiya Publ., 1986, 541 p.
  2. Fridman Ya.B. Mekhanicheskie svoystva metallov. Ch. 2. Konstruktsionnaya prochnost’ [Mechanical Properties of Metals. Part 2. Structural Strength]. Moscow, Mashinostroenie Publ., 1974, 368 p.
  3. Tylkin M.A. Spravochnik termista remontnoy sluzhby [Reference Book for a Heat Treater of Repair Services]. Moscow, Metallurgiya Publ., 1981, 647 p.
  4. Kolesnikov K.S., Balandin G.F., Dal’skiy A.M. Tekhnologicheskie osnovy obespecheniya kachestva mashin [Technology-related Fundamentals of Machinery Quality Assurance]. Moscow, Mashinostroenie Publ., 1990, 256 p.
  5. Gustov Yu.I., Allattuf H.L. Issledovanie sinergeticheskikh pokazateley vysokoprochnoy stroitel’noy stali 14Kh2GMR posle termicheskoy obrabotki [Research of Synergetic Properties of High-Strength Structural Steel 14x2gmr in the Aftermath of Exposure to Heat Treatment]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2012, no. 6, pp. 79—82.
  6. Gustov Yu.I., Voronina I.V., Allattuf H.L. Issledovanie sinergeticheskikh pokazateley nadezhnosti maloperlitnoy stroitel’noy stali 09g2fb [Research of Synergetic Reliability of Pearlite-reduced Structural Steel 09g2fb]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2012, no. 7, pp. 159—162.
  7. Arzamasov B.N., Solov’eva T.V., Gerasimov S.A. Spravochnik po konstruktsionnym materialam [Structural Materials Reference Book]. Moscow, MGTU im. N.E. Baumana Publ., 2005, 640 p.
  8. Akulov I.A., Alekseev E.K., Dmitriev I.S. Spravochnik po spetsial’nym rabotam. Svarochnye raboty v stroitel’stve. Ch. 1 [Reference Book on Special-purpose Works. Welding works in Construction. Part 1]. Moscow, Izdatel’stvo literatury po stroitel’stvu publ., 1971, 464 p.
  9. Babichev A.P., Babus hkina N.A., Bratkovskiy A.M. Fizicheskie velichiny: spravochnik [Physical Values. Reference Book]. Moscow, Energoatomizdat Publ., 1991, 1232 p.

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RESEARCH OF SYNERGETIC RELIABILITY OF PEARLITE-REDUCED STRUCTURAL STEEL 09G2FB

Vestnik MGSU 7/2012
  • Gustov Yuriy Ivanovich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Profes- sor, Department of Machinery, Machine Elements and Process Metallurgy; +7 (499) 183-94-95, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Rus- sian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Voronina Irina Vladimirovna - Moscow State University of Civil Engineering (MGSU) Senior Lecturer, Department of Building and Hoisting Machinery, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499) 182-16-87; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Allattouf Hassan Lattouf - Moscow State University of Civil Engineering (MGSU) postgraduate student, Department of Mechanic Equip- ment, Details of Machines and Technology of Metals, 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 159 - 162

The primary objective of the research is the synergetic reliability of perlite-reduced structural steel 09G2FB exposed to various thermal and mechanical treatments. In the aftermath of the above exposure, the steel in question has proved to assume a set of strength-related and plastic mechanical properties (σσδ and ψ).
On the basis of the above, an equation is formed\[{{{\sigma }_{\Tau }}}/{{{\sigma }_{\Beta }}+{\delta }/{\Psi }\;=}\;={{\left[ {\left( 1+{{\delta }_{}} \right)}/{\left( 1+{{\delta }_{\Rho }} \right)}\; \right]}^{{1}/{\Psi }\;}},\] and its solution in respect of the uniform component ${{\delta }_{\text{P}}}$ is used to generate the expression \[{{\delta }_{\Rho }}={{\left[ {\left( 1+\delta \right)}/{{{}^{\Psi }}}\; \right]}^{0,5}}-1\]and, hence \[{{\Psi }_{\Rho }}={{{\delta }_{\Rho }}}/{\left( 1+{{\delta }_{\Rho }} \right)}\;.\] To use the synergy criteria, the following expression is applied: \[{{S}_{\Beta }}={{{\sigma }_{\Beta }}}/{\left( 1-{{\Psi }_{\Rho }} \right)}\;,{{S}_{\operatorname{K}}}={{\sigma }_{\Beta }}\left[ {1+\Psi }/{\left( 1-{{\Psi }_{\Rho }} \right)}\; \right],\] as well as the following expression of specific uniform and a specific limit energy :
\[{{W}_{\Rho }}=0,5\left( {{\sigma }_{\Tau }}+{{S}_{B}} \right)\ln \left[ {1}/{\left( 1-{{\Psi }_{\Rho }} \right)}\; \right],{{W}_{C}}=0,5\left( {{\sigma }_{\Tau }}+{{S}_{K}} \right)\ln \left[ {1}/{\left( 1-\Psi \right)}\; \right].\]
\[{{K}_{}}={{{W}_{C}}}/{{{S}_{T}}}\;,G={{{W}_{}}}/{{{W}_{C}},}\;{{K}_{a}}={{{W}_{C}}}/{{{A}_{C}}}\;,\]where static viscosity is calculated according to:\[{{}_{}}=0,5\left( {{S}_{\operatorname{K}}}-{{\sigma }_{\Tau }} \right)\ln \left[ {1}/{\left( 1-\Psi \right)}\; \right].\]
The secondary objective of the project is the identification of the steel brittleness threshold to assure controlled rolling and application of the above steel in construction.

DOI: 10.22227/1997-0935.2012.7.159 - 162

References
  1. Bol’shakov V.I. Substrukturnoe uprochnenie konstruktsionnykh staley [Substructural Strengthening of Structural Steels], a monograph. Canada, 1998, 316 p.
  2. Gustov Yu.I., Gustov D.Yu., Voronina I.V. Sinergeticheskie kriterii metallicheskikh materialov [Synergetic Criteria of Metal Materials]. Collected works of the 15th Russian-Slovak-Polish Seminar. Theoretical Fundamentals of Civil Engineering. Warsaw, 2006, pp. 179—184.
  3. Mozberg R.K. Materialovedenie [Material Engineering]. Valgus Publ., Tallinn, 1976, p. 554.

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Modern trends in town-planning science in terms of spatial planning

Vestnik MGSU 11/2013
  • Samoylova Nadezhda Aleksandrovna - Moscow State University of Civil Engineering (National Research University) (MGSU) councellor, Central Office of the Government of the Russian Federation, councellor, Russian Academy of Architecture and Construction Sciences, Assistant Lecturer, Department of Building Design and Urban Planning, Moscow State University of Civil Engineering (National Research University) (MGSU), 26, Yaroslavskoye shosse, Moscow, Russia, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 210-217

In the article the present stages of the urban planning development of the territory in non-classical and post-neoclassical science are discussed. The author carries out the judgment on the evolution of one of the directions of urban planning activity — the spatial planning. Three aspects of urban planning science (knowledge system, professional activity, social institute) are considered. The Author makes an attempt to define the role and position of town-planning science in a complex of interdependent and interacting branches of science.Sociocultural conditions of spatial planning development in the USSR are stated. Distinctive characteristics of the Russian urban planning process (economic, sociological and legal) are specified. The author offers the terminological comparison of definitions used in science in the sphere of urban planning development of the territories. The ambiguity of interpretation of the Russian term «town planning» and English term «spatial planning» and «regional planning» is specified.It is offered to consider spatial planning as complex scientific knowledge which operates the tools of synergetics. The theoretical formation model of the spatial environment of a settlement is taken for a basis. This model was developed by the Doctor of Architecture, professor Yu.V. Alekseev as a system of 4 organized objects: I —space of a closed construction (buildings and structures), II — space of an open construction, the organized urban planning space (spatial planning), III – the earth; IV — space of above ground territories; together with the differentiated functional processes, functions and factors.The purpose of the scientific research conducted by the author is to receive new knowledge in order to improve the theoretical model as a universal development project of settlements in the given territory, applicable in any concrete situation, allowing to solve all the problems by available means in the best way.

DOI: 10.22227/1997-0935.2013.11.210-217

References
  1. Baturin Yu.M. Modelirovanie kak vspomogatel'nyy instrument istorii i tekhniki [Modeling as an Auxiliary Tool of History and Techniques]. Vestnik Rossiyskoy akademii nauk [Proceedings of the Russian Academy of Sciences]. Moscow, 2013, no. 1, vol. 83, pp. 3—9.
  2. Grodach C. Urban Branding: an Analysis of City Homepage Imagery. Journal of Architectural and Planning Research. 2009, no. 26 (3), pp. 181—197. Available at: http://japr.homestead.com/files/Grodach.pdf. Date of access: 27.04.2013.
  3. Maghelal P., Natesan P., Naderi J.R., Kweon Byoung-Suk. Investigating the Use of Virtual Reality for Pedestrian Environments. Journal of Architectural and Planning Research. 2011, no. 28 (2), pp. 104—117. Available at: http://japr.homestead.com/Maghelal_Final Version111213.pdf. Date of access: 26.04.2013.
  4. Huntsinger L., Rouphail N., Bloomfield P. Trip Generation Models using Cumulative Logistic Regression. Journal of Urban Planning and Development, ASCE. 2013, no. 139(3), pp. 176–184. Available at: http://ascelibrary.org/doi/abs/ 10.1061/%28ASCE%29UP.1943-5444.0000151. Date of access: 28.04.2013.
  5. Ozuduru B. Assessment of Spatial Dependence Using Spatial Autoregression Models: Empirical Analysis of Shopping Center Space Supply in Ohio. Journal of Urban Planning and Development, ASCE. 2013. no. 139(1), pp. 12—21. Available at: http://ascelibrary.org/doi/abs/10.1061/(ASCE)UP.1943-5444.0000129?af=R&. Date of access: 26.04.2013.
  6. Marins K., Romero M. Urban and Energy Assessment Resulting from a Systemic Approach of Urban Morphology, Urban Mobility and Buildings, Applied to Agua Branca Case Study, in Sao Paulo. Journal of Urban Planning and Development, ASCE. 2013. Available at: http://ascelibrary.org/doi/abs/10.1061/ %28ASCE%29UP.1943-5444.0000149. Date of access: 28.04.13.
  7. Yin L. Assessing Walkability in the City of Buffalo: Application of Agent-Based Simulation. Journal of Urban Planning and Development, ASCE. 2013, no. 139(3), pp. 166–175. Available at: http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29UP.1943-5444.0000147. Date of access: 28.04.13.
  8. Regulations of the Russian Academy of Architecture and Construction Science, Approved by the Decision of the Government of the Russian Federation, 6.05.2009, no.393. RAASN Publ. Available at: http://www.raasn.ru/aasn1.htm. Date of access: 25.03.2013.
  9. Glazychev V.L. Politicheskaya ekonomiya goroda [Political Economy of a City]. Moscow, Delo Publ., 2009, 192 p.
  10. Semenov V. Blagoustroystvo gorodov [Urban Redevelopment]. Moscow, 1912.
  11. Milyutin N. Sotsgorod: problema stroitel'stva sotsialisticheskikh gorodov [Social City: the Problems of Social Cities Construction]. Moscow-Leningrad, 1930.
  12. Osnovnye napravleniya deyatel'nosti Minregiona Rossii na 2013—2018 gody [The Main Areas of the Activity of the Ministry of Regional Development of Russia for the years 2013—2018]. Available at: http://www.minregion.ru/press_office/news/2977.html. Date of access: 31.05.13.
  13. Alekseev Yu.V., Starostina N.G., Filipenko Yu.A. Tendentsii i problematika razvitiya territoriy zastroyki 1950-kh i 1960-kh godov v Moskve [The Tendencies and Problematics of the Build-up Areas Development in 1950th and 1960th in Moscow. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering. 2011, no. 12, pp. 20—22.
  14. Alekseev Yu.V., Belyaev V.L. Podzemnye zdaniya i sooruzheniya kak sistemnyy element vzaimodeystvuyushchikh prostranstvennykh sred razvitiya gorodskoy territorii [Underground Buildings and Structures as Constituent Elements of Interacting Spatial Environments within the Urban Development Framework]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2012, no. 2, pp. 6—10.
  15. Efremenko D.N. Kontseptsiya obshchestva znaniya kak teoriya sotsial'nykh transformatsiy: dostizheniya i problemy [The Concept of the Society of Knowledge as a Theory of Social Transformations: Achievements and Problems]. Voprosy filosofii [Problems of Philosophy]. 2010, no. 11, pp. 49—66.

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