Reliability-Based Optimization for Dynamic Loads

by James W. Davidson, (A.M.ASCE), Manager-Analytical Engineer; Ameron, South Gate, Calif.; formerly, Grad. Student, Mechanics and Structures, Structures Dept., School of Engrg. and Applied Sci., Univ. of California, Los Angeles, Calif.,
Gary C. Hart, (M.ASCE), Assoc. Prof.; Mechanics and Structures Dept., School of Engrg. and Applied Sci., Univ. of California, Los Angeles, Calif.,
Lewis P. Felton, (M.ASCE), Assoc. Prof.; Mechanics and Structures Dept., School of Engrg. and Applied Sci., Univ. of California, Los Angeles, Calif.,


Serial Information: Journal of the Structural Division, 1977, Vol. 103, Issue 10, Pg. 2021-2035


Document Type: Journal Paper

Abstract: A general formulation is presented for weight optimization of indeterminate structures subject to transient dynamic loads and reliability constraints. Two distinct methods of structural analysis are examined and compared for use in the optimization algorithm: (1)Numerical integration of equations of motion and (2)shock spectra. Details of the essential computation of standard derivation of response quantities associated with each analysis technique are also examined. The formulations are illustrated by design examples of a rigid frame subjected to an acceleration impulse applied to its base.

Subject Headings: Structural reliability | Transient loads | Equations of motion | Structural analysis | Optimization models | Algorithms

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