Research Article
Dec 1981
Seismic Risk Analysis of Structural Systems
Publication: Journal of the Engineering Mechanics Division
Volume 107, Issue 6
Abstract
A methodology for reliability assessment of structural systems subjected to seismic risk is developed. Based on modern concepts of structural reliability theory, structural safety against earthquakes is described through a performance function of ground motion variables. A multivariate risk analysis is then performed to compute the failure probability. The method can be applied to any type of structural system for which a performance function can be formulated. A specific application to linear structures using the response spectrum of ground motion is developed where the performance function is shown to be of quadratic form in terms of spectral ordinates. This application is illustrated through a numerical example for a two-degree-of-freedom structure with multiple failure modes. The example is also used to examine the accuracy of a conventional method that uses marginal probabilities to approximate a joint distribution.
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Published In
Journal of the Engineering Mechanics Division
Volume 107 • Issue 6 • December 1981
Pages: 1133 - 1153
Copyright
© 1981 American Society of Civil Engineers.
History
Published in print: Dec 1981
Published online: Feb 3, 2021
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Authors
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Armen Der Kiureghian, AM.ASCE
Assoc. Prof. of Civ. Engrg., Univ. of California at Berkeley, Berkeley, Calif.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.