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|Title:||Inelastic displacement demand of strength-degraded structures|
|Citation:||Journal of Earthquake Engineering, 2010; 14(4):487-511|
|Publisher:||Imperial College Press|
|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|
|Appears in Collections:||Civil and Environmental Engineering publications|
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