Abstract
A formulation is presented for the minimum-weight design of a structure subjected to an earthquake ground motion and constrained by a specified upper bound on overall probability of failure. The formulation includes a probabilistic representation of earthquake response spectrum shape and structural stiffness characteristics. Examples are presented which provide insight into basic features of reliability-based earthquake-resistant designs, and also illustrate the effects of different material characterizations and different assumptions regarding parameter distributions. In addition, designs based on the probabilistic representation of response spectrum are compared to designs based on deterministic response spectra which correspond to particular levels of probability of occurrence.
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