Limit States Reliability Interaction in Optimum Design of Structural Systems

by Dan M. Frangopol, Univ of Colorado, United States,
Gongkang Fu, Univ of Colorado, United States,

Document Type: Proceeding Paper

Part of: Structural Safety and Reliability


A multiobjective optimization approach to deal with structural reliability-based design under multiple limit states is developed. This approach resolves the limit states reliability interaction problem. In fact, keeping track of the reliability level of each limit state of interest becomes an intrinsic part of the optimization method used to find the objective solution set. It is concluded that the proposed approach produces a more balanced optimum solution.

Subject Headings: Structural reliability | Structural systems | Structural analysis | Limit states | System reliability | Optimization models | Probability | Frames

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