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论文类型：期刊论文

发表时间：2009-11-01

发表刊物：COMPUTERS & STRUCTURES

收录刊物：SCIE、EI、Scopus

卷号：87

期号：21-22

页面范围：1408-1415

ISSN号：0045-7949

关键字：Uncertainty; Probability; Convex model; Reliability; Mixed model

摘要：This paper investigates the reliability assessment of structures exhibiting both stochastic and bounded uncertainties by using a probability and convex set mixed model. The safety measure of a structure is quantified by a reliability index defined by a nested minimization problem. An iterative procedure is developed for seeking the worst-case point and the most probable failure point in the standard uncertainty space. Numerical examples are given to demonstrate the applicability of the probability and convex set mixed model representation in the structural reliability assessment, as well as to illustrate the validity and effectiveness of the proposed numerical method. (C) 2009 Elsevier Ltd. All rights reserved.