Reliability Study of Prefabricated Box Culvert Components Based on Probability Density Evolution Method

被引:1
作者
Kang Y.-M. [1 ]
Li J.-Q. [1 ]
Liu Z.-A. [1 ]
Yu J.-Y. [1 ]
机构
[1] School of Resources & Civil Engineering, Northeastern University, Shenyang
来源
Dongbei Daxue Xuebao/Journal of Northeastern University | 2021年 / 42卷 / 12期
关键词
Function; Monte Carlo method; Prefabricated box culvert; Probability density evolution method; Reliability of components;
D O I
10.12068/j.issn.1005-3026.2021.12.016
中图分类号
学科分类号
摘要
The calculation accuracy and efficiency of reliability analysis of prefabricated box culvert components are studied using the probability density evolution method based on the actual project. Firstly, the function of prefabricated box culvert is established, the generalized probability density evolution equation of the function is derived, and the finite difference method is used to solve the problem. Secondly, the probability density function is integrated to get the failure probability of components, and then the corresponding reliability index is obtained. Finally, it is compared with Monte Carlo method to analyze the applicability of probability density evolution method. The results show that: in the process of solving the reliability of prefabricated box culvert components, the probability density evolution method fully considers the randomness of component parameters and the probability relationship between sample points based on the relationship between physical system and stochastic system. Compared with Monte Carlo method, probability density evolution method can avoid random convergence effectively, and improve the accuracy and efficiency of calculation under the premise of guaranteeing the unique result. © 2021, Editorial Department of Journal of Northeastern University. All right reserved.
引用
收藏
页码:1782 / 1789
页数:7
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