Multicriterion Reliability-Based Optimization of Structural Systems

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

Document Type: Proceeding Paper

Part of: Probabilistic Methods in Civil Engineering


The optimization of nondeterministic structural systems under random loads is currently performed by single-criterion reliability-based optimization methods. However, in structural design practice several performance criteria must be simultaneously satisfied. This paper presents a procedure for the reliability-based optimization of structural systems considering multiple performance criteria simultaneously. The problem formulation is given, the constraint method for solving this problem is described, and some results are presented.

Subject Headings: Structural reliability | Structural systems | System reliability | Structural design | Structural analysis | Optimization models | Load factors

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