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DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

ASSESSMENT OF RELIABILITY OF THE FOUNDATION SLAB RESTING ON THE LINEARLY DEFORMABLE BED AND CHARACTERIZED BY THE MODULUS OF DEFORMATION VARIABLE IN X- AND Y-AXIS DIRECTIONS

Vestnik MGSU 5/2012
  • Mkrtychev Oleg Vartanovich - Moscow State University of Civil Engineering (MSUCE) Doctor of Technical Sciences, Professor, Department of Strength of Materials, Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Myasnikova Elena Stanislavovna - Moscow State University of Civil Engineering (MSUCE) postgraduate student, Department of Strength of Materials, Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 29 - 33

In the proposed article, the behaviour of a foundation slab resting on the linearly deformable bed and characterized by the modulus of deformation variable in x- and y-axis directions is considered. The modulus of deformation and the load distribution are based on a regular pattern that features the following parameters: modulus of deformation mean =25МРа coefficient of variation =0,2, load distribution mean 0,5 МРа; coefficient of variation =0,1. Correlation coefficients between 1, 2...=0As a result of the research, the authors have identified the empirical deflection to approximate the theoretical load distribution. The research has demonstrated that both deflection and slope values follow a regular load distribution pattern. If the deflection value exceeds 20 cm and the slope value exceeds 5cm, the structure fails. Therefore, the theory of probability may be applied to assess the probability of failure of any structure.

DOI: 10.22227/1997-0935.2012.5.29 - 33

References
  1. Mkrtychev O.V., Myasnikova E.S. Nadezhnost’ fundamentnykh konstruktsiy na nelineyno deformiruemom osnovanii [Reliability of Structures of Foundations Resting on the Nonlinearly Deformable Bedding]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2012, no. 4.
  2. Rzhanitsyn A.R. Teoriya rascheta stroitel’nykh raschetov na nadezhnost’ [Theory of Structural Analysis in terms of Reliability]. Moscow, Stroyizdat Publ., 1978.
  3. Sobolev D.N. Statisticheskie modeli uprugogo osnovaniya [Statistical Models of the Elastic Bedding]. Moscow, Moscow Institute of Civil Engineering named after V.V. Kuybyshev, 1973.

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EUROPEAN AND RUSSIAN CONCEPTS OF THE RISK ESTIMATION OF EMERGENCY SITUATION DUE TO THE EQUIPMENT FAILURE AT ISOTHERMAL GAS STORAGE FACILITIES

Vestnik MGSU 4/2017 Volume 12
  • Kovalchuk Oleg Aleksandrovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Associate Professor, Associate Professor, Department of Building and Theoretical Mechanics, Director of the Institute of Fundamental Education, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, Russian Federation, 129337.
  • Zavadskaya Elena Petrovna - Moscow State University of Civil Engineering (National Research University) (MGSU) Postgraduate Student, Department of Construction and Theoretical Mechanics, Assistant, Department of Applied Mathematics, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, Russian Federation, 129337.

Pages 390-395

Article is devoted to the consideration of European methods of estimating the risk of an emergency situation due to the equipment failure at isothermal gas storage facilities and comparing these methods with Russian ones. In European methods, two levels of risk analysis are distinguished. At the first level, all parameters are assumed constant. In general, specialists analyze this level in their work, because it is more concise and corresponds to the facility reliability. The second level of analysis is more complex and resorted to unusual emergency situations. According to Russian standards, risk analysis is carried out for each hazardous facility individually.

DOI: 10.22227/1997-0935.2017.4.390-395

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