STRUCTURAL RELIABILITY ANALYSIS BASED ON P-BOXES
https://doi.org/10.33979/2073-7416-2020-92-6-51-58
Abstract
The article describes a method for reliability (probability of non-failure) analysis of structural elements based on p-boxes. An algorithm for constructing two p-blocks is shown. First p-box is used in the absence of information about the probability distribution shape of a random variable. Second p-box is used for a certain probability distribution function but with inaccurate (interval) function parameters. The algorithm for reliability analysis is presented on a numerical example of the reliability analysis for a flexural wooden beam by wood strength criterion. The result of the reliability analysis is an interval of the non-failure probability boundaries. Recommendations are given for narrowing the reliability boundaries which can reduce epistemic uncertainty. On the basis of the proposed approach, particular methods for reliability analysis for any structural elements can be developed. Design equations are given for a comprehensive assessment of the structural element reliability as a system taking into account all the criteria of limit states.
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Review
For citations:
Solovyev S.A. STRUCTURAL RELIABILITY ANALYSIS BASED ON P-BOXES. Building and Reconstruction. 2020;(6):51-58. (In Russ.) https://doi.org/10.33979/2073-7416-2020-92-6-51-58
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