Research Article
Oct 1977
Approximate Design for Multicomponent Earthquakes
Publication: Journal of the Engineering Mechanics Division
Volume 103, Issue 5
Abstract
Current design criteria are intended to provide values of structural responses to a single component of a design earthquake, at a fixed exceedance probability. It is desirable to know whether a structure is safe, at that reliability level, under the combined effect of several simultaneous earthquake components. If the component accelerograms are idealized as zero-mean Gaussian processes and the structure behaves linearly, then structural responses associated with a given exceedance probability define an ellipsoid in the response space. In this space, points falling inside the failure surface (interaction surface) correspond to survival; those outside, to failure. A structure is safe, at the specified reliability level, if the corresponding ellipsoid falls entirely within the survival region. Computations to verify this condition are, however, quite awkward. An approximate method is developed which replaces computation of the ellipsoid coordinates with that of a linear combination of responses to individual components.
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Published In
Journal of the Engineering Mechanics Division
Volume 103 • Issue 5 • October 1977
Pages: 881 - 893
Copyright
© 1977 American Society of Civil Engineers.
History
Published in print: Oct 1977
Published online: Feb 3, 2021
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Authors
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Emilio Rosenblueth, F.ASCE
Prof. of Engrg., Universidad Nacional Autónoma de México, Mexico, DF
Humberto Contreras
Grad. Research Asst., Instituto de Ingeniería, Universidad Nacional Autónoma de México, Mexico, DF
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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.