Concepts and Methods in Reliability-Based Structural Optimization

by Dan M. Frangopol, Univ of Colorado at Boulder, Dep of, Civil Engineering, Boulder, CO, USA,



Document Type: Proceeding Paper

Part of: Structural Safety Studies

Abstract:

This paper presents an overview of the major concepts and methods used in reliability-based structural optimization. New formulations related to multicriteria optimization are developed. Comparative results are presented when different criteria are used for the optimum design of a structure under service and/or ultimate reliability constraints. The numerical results are presented in the form of a comparative study based on different optimization formulations with respect to plastic collapse and/or loss of serviceability.



Subject Headings: Comparative studies | Numerical analysis | Structural reliability | Optimization models | Numerical methods | Plastic analysis | Failure loads | Computer programming

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