DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

Estimation of seismic resistanceof an industrial building: probabilistic approach

Vestnik MGSU 11/2013
  • Zolina Tat’yana Vladimirova - Astrakhan Institute of Civil Engineering (AICI) Candidate of Technical Sciences, Professor, vice-rector, Astrakhan Institute of Civil Engineering (AICI), 18 Tatishchev str., 414056, Astrakhan, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Sadchikov Pavel Nikolaevich - State Autonomous Educational Institution of the Astrakhan area of higher education "Astrakhan State Architectural and Construction University" (JSC GAOU VPO "AGASU") Candidate of Technical Sciences, Associate Professor, Department of Automated Design and Modeling Systems, State Autonomous Educational Institution of the Astrakhan area of higher education "Astrakhan State Architectural and Construction University" (JSC GAOU VPO "AGASU"), 18 Tatishcheva str., Astrakhan, 414000, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 42-50

This article represents the results of the research of general approaches and methods of risk evaluation for further exploitation of industrial buildings under seismic loads. Algorithms, developed or adopted by the authors of the article are designed for evaluating strength and stability of an industrial building, considered as a three-dimensional two-mass system, where the calculation points are located at the nodes of intersection of columns and brake structures of frames and the longitudinal axis of coating.Solving the problem of integral reliability and durability of buildings and structures as well as well-balanced design and strength under extreme conditions means to perform quantitative assessment of risk and to minimize it. Most existing analysis and risk evaluation methods are qualitative and estimate the probability of an emergency situation.Algorithm, offered by the authors of this article, includes assessment of seismic vulnerability risk of a construction in case of an earthquake of certain intensity. Problems, arising due to the complexity of probabilistic calculations, are solved by using automated control systems.Using classic methods of statistic dynamics and reliability theory, the authors offer a probability calculation, including the following:• Cop has aland quarter phase spectraldensity components of seismic movements;• entrance and exit spectrums;• dispersion of generalized coordinatesfor each natural frequency of a building;• waveform factor matrix;• effective oscillation period of a con-struction under seismic load;• failure frequencies at significancevalue;• total dispersion for all waveforms;• conventional, external and full seismicrisk.The given method of evaluating resistance of buildings and constructions to seismic loads is a probabilistic method and can be used as a basis for algorithms to automatize corresponding calculations during engineering design and exploitation of buildings and constructions.

DOI: 10.22227/1997-0935.2013.11.42-50

References
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ASEISMIC CONSTRUCTION AS THE GEO-ECOLOGICAL FACTOR

Vestnik MGSU 8/2012
  • Galay Boris Fedorovich - North Caucasian Federal University Professor, Doctor of Geological and Mineralogy Sciences, North Caucasian Federal University, 2 prospekt Kulakova, Stavropol, 355029, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Chernov Yuriy Konstantinovich - Research and Production Centre of Engineering Geology Professor, Doctor of Physical and Mathematical; Sciences, Research and Production Centre of Engineering Geology, 185 Dzerzhinskogo st., Stavropol, 355003, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Chernov Andrey Yurevich - North Caucasian Federal University Assistant Lecturer, Department of Construction, North Caucasian Federal University, 2 prospekt Kulakova, Stavropol, 355029, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 154 - 168

Seismicity of any territory produces a significant impact on human beings, micro-organisms,
animals and plants, i.e. the biota. In seismically active areas, earthquake-resistant construction is
an important geo-ecological factor and one of principal methods of protection against the threat of
earthquakes. The efficiency of earthquake-resistant construction is largely determined by the accuracy
of predictions, potential seismic effects of earthquakes, and additional seismic loads on buildings
and structures. Therefore, valid and reliable assessment of the seismic hazard and seismic
risks can become an integral part of geo-ecological monitoring undertakings and risk assessments.
Application of advanced probabilistic technologies in the design and maintenance of structures may
increase the accuracy of projections of dangerous seismic loads to optimize the losses caused by
the negative impact of earthquakes in compliance with the pre-set dependence between safety,
economic efficiency and practicability patterns.
Probabilistic technologies, including passive constituents of the general method of geo-ecological
protection, have been tested in Central Ciscaucasia. The results of assessments of seismic
hazards and risks in various engineering and seismological conditions of Stavropol, Krasnodar,
Pyatigorsk, Kavkazskaya completed for structures of various degrees of responsibility are represented
in the article.

DOI: 10.22227/1997-0935.2012.8.154 - 168

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