Structural Reliability Analysis with Epistemic Uncertainty of Data

Number of journal: 6-2023
Autors:

Solovev S.A.,
Soloveva A.A.,
Umnyakova N.P.,
Kochkin A.A.

DOI: https://doi.org/10.31659/0585-430X-2023-814-6-45-50
УДК: 624.046.5

 

AbstractAbout AuthorsReferences
In practical problems of probabilistic reliability analysis, there is a need for accounting and modeling of aleatory and epistemic uncertainties of data. Modeling of aleatory uncertainty, as a rule, is based on well-known probabilistic and statistical methods of the structural reliability theory, while for effective and reliable modeling of epistemic uncertainty, it becomes necessary to use new mathematical theories of data analysis. The article demonstrates the p-box model as a tool for describing a random variable in the problems of structural reliability analysis. With a large number of random variables represented by p-boxes, the analytical solution of the problem becomes more complicated. To deal with this problem, the article presents two numerical approaches to solving it: the discretization of p-boxes into of the Dempster-Shafer structures and the Interval Monte Carlo method (IMC). Probabilistic analysis of the structural reliability allow to obtain a quantitative assessment of the safety level of buildings and structures, to forecast the residual life of structures according to the reliability criterion, as well as to solve the problems of risk assessing and optimization problems.
S.A. SOLOVEV1, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
A.A. SOLOVEVA1, Engineer (Graduate Student) (This email address is being protected from spambots. You need JavaScript enabled to view it.);
N.P. UMNYAKOVA2,3, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.);
A.A.KOCHKIN1, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)

1 Vologda State University (15, Lenin Street, Vologda, 160000, Russian Federation)
2 Scientific-Research Institute of Building Physics of RAACS (21, Lokomotivniy Driveway, Moscow, 127238, Russian Federation)
3 National Research Moscow State University of Civil Engineering (26, Yaroslavskoye Highway, Moscow, 129337, Russian Federation)

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For citation: Solovev S.A., Soloveva A.A., Umnyakova N.P., Kochkin A.A. Structural reliability analysis with epistemic uncertainty of data. Stroitel’nye Materialy [Construction Materials]. 2023. No. 6, pp. 45–50. (In Russian). DOI: https://doi.org/10.31659/0585-430X-2023-814-6-45-50


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