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Inelastic Displacement Demand of Strength-Degraded Structures
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.
Inelastic Displacement Demand of Strength-Degraded Structures
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.
Inelastic Displacement Demand of Strength-Degraded Structures
Lumantarna, Elisa (Autor:in) / Lam, Nelson (Autor:in) / Wilson, John (Autor:in) / Griffith, Michael (Autor:in)
Journal of Earthquake Engineering ; 14 ; 487-511
01.05.2010
25 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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