Volume 37, Issue 1 (9-2018)                   JCME 2018, 37(1): 133-148 | Back to browse issues page


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1- Department of Civil Engineering, Birjand University of Technology, Birjand, Iran.
2- Department of Civil Engineering, University of Zabol, Zabol, Iran. , bkeshtegar@uoz.ac.ir
Abstract:   (838 Views)

In this paper, a new method is proposed for fuzzy structural reliability analysis; it considers epistemic uncertainty arising from the statistical ambiguity of random variables. The proposed method, namely, fuzzy dynamic-directional stability transformation method, includes two iterative loops. An internal algorithm performs the reliability analysis using the dynamic-directional stability transformation method and an external algorithm performs the fuzzy analysis by applying the alpha-cut level optimization method based on the genetic algorithm. Implementation of the proposed method, which solves some nonlinear performance functions, indicates the efficiency and robustness of the dynamic-directional stability transformation method, as compared to other first order reliability methods.

Full-Text [PDF 1953 kb]   (358 Downloads)    
Type of Study: Research | Subject: Special
Received: 2017/03/9 | Accepted: 2017/07/31