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Reliability-Based Optimal Design of Series Structural Systems |
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| Authors: | J O Royset A Der Kiureghian E Polak |
| Affiliation: | 1Member, ASCE 21Grad. Student, Dept. of Civ. and Envir. Engrg., Univ. of California, Berkeley, CA. 32Taisei Prof. of Civ. Engrg., Dept. of Civ. and Envir. Engrg., Univ. of California, Berkeley, CA. 43Emeritus Prof., Dept. of Electr. Engrg. and Comp. Sci., Univ. of California, Berkeley, CA. |
| Abstract: | A robust approach for approximately solving reliability-based optimal design problems, for series structural systems, is developed. The approach reformulates the problems by replacing reliability terms with deterministic functions. The reformulated problems can be solved by existing semiinfinite optimization algorithms, producing solutions that are identical to those of the original problems, when the limit-state functions are affine, or when first-order reliability approximations are used. An important advantage of the approach is that the required reliability and optimization calculations are completely decoupled, allowing flexibility in the choice of the optimization algorithm and the reliability method. Three sets of examples demonstrate applications of the approach. |
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