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Type: Journal article
Title: Inelastic displacement demand of strength-degraded structures
Author: Lumantarna, E.
Lam, N.
Wilson, J.
Griffith, M.
Citation: Journal of Earthquake Engineering, 2010; 14(4):487-511
Publisher: Imperial College Press
Issue Date: 2010
ISSN: 1363-2469
Statement of
Elisa Lumantarna, Nelson Lam, John Wilson, and Michael Griffith
Abstract: This article presents findings from parametric studies involving nonlinear time-history analyses of inelastic systems with and without strength degradation. Results showed that estimates based on the equal-displacement and equal-energy propositions can be exceeded significantly by the inelastic displacement demands in the acceleration and velocity-sensitive regions of the response spectrum. The displacement demand behaviour is sensitive to the strength degradation and the frequency properties of the ground shaking. With a modest strength reduction factor of 2, the inelastic displacement demand would typically be constrained by the Peak Displacement Demand as indicated on the elastic displacement response spectrum for 5% damping.
Keywords: Inelastic Displacement Demand; Strength Degradation; Limited Ductile; Non Ductile; Displacement-based Approach
Rights: Copyright A.S. Elnashai & N.N. Ambraseys
RMID: 0020096995
DOI: 10.1080/13632460903336910
Grant ID:
Appears in Collections:Civil and Environmental Engineering publications

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