Stochastic Load Exceedances with General Material Nonlinearity
Publication: Journal of Structural Engineering
Volume 114, Issue 7
Abstract
Reliability of a structural member with nonlinear material property subjected to floor live‐load processes is investigated. Earlier studies have assumed a bilinear load‐deformation relationship. However, the actual force‐deformation relationship exhibits a nonlinear curve, even for a very simple system. In this study, a multilinear load‐deformation model that can better approximate the actual material behavior is utilized. The first‐moment statistics are derived for the number of load exceedances and damage duration for a structural member due to sustained and combined load processes. It is found that the derived results using a trilinear material model agree very well with the results obtained from simulated data. The differences are usually within 3% for sustained load processes and somewhat higher, about 10%, for combined processes.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 114 • Issue 7 • July 1988
Pages: 1674 - 1686
Copyright
Copyright © 1988 ASCE.
History
Published online: Jul 1, 1988
Published in print: Jul 1988
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