On Reliability-Based Structural Optimization for Earthquakes

by Mohammad Khalessi, Univ of California, Los Angeles, CA, USA,
Lewis P. Felton, Univ of California, Los Angeles, CA, USA,



Document Type: Proceeding Paper

Part of: Dynamic Response of Structures

Abstract:

Previous studies of reliability-based structural optimization have been extended in order to investigate the applicability of the linear statistical model in cases where random parameters have relatively large coefficients of variation such as occur in earthquake related problems, and compare results from the linear statistical model with those of a nonlinear statistical model. The validity of these formulations has been assessed by Monte Carlo Simulation. Applications to earthquake resistant designs are presented which include statistical characterizations of earthquake response spectrum shape, structural stiffness characteristics and peak ground acceleration. Examples include elastic designs and design of a structure which may yield significantly but which must avoid collapse within its lifetime.

Subject Headings: Structural reliability | Optimization models | Earthquake resistant structures | Structural models | Structural design | Statistics | Earthquakes

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