Optimization for Earthquake Loadsby Kevin Z. Truman, (A.M.ASCE), Washington Univ, St. Louis, United States,
Franklin Y. Cheng, (M.ASCE), Washington Univ, St. Louis, United States,
Abstract: Structural optimization for seismic loads can be approached from a deterministic or nondeterministic point of view. Deterministically, the major difference between optimization of statically and dynamically loaded systems is in the constraint gradient formulation. The gradient formulations for UBC equivalent lateral force, modal response spectra and time history seismic analysis for use in a structural optimization are developed. Nondeterministically, major differences occur due to the reliability based analysis and the random nature of the seismic structural problem. Example problems for both the deterministic and nondeterministic systems are presented and discussed.
Subject Headings: Seismic loads | Structural reliability | Earthquake resistant structures | Seismic tests | Lateral forces | Static loads
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