Role of Damage Functions in Evaluation of Response Modification Factors
Publication: Journal of Structural Engineering
Volume 130, Issue 9
Abstract
From the study of the nonlinear behavior of single degree of freedom (SDOF) oscillators, response modification factor spectra corresponding to failure conditions of structures are assessed by means of damage indices. Two different damage indices are used: one that neglects and one that takes into account the way in which the hysteretic energy is dissipated. Ground motion records obtained from several earthquakes and grouped as a function of magnitude of the event, source-to-site conditions and site-soil conditions are used as input for nonlinear dynamic analysis of inelastic SDOF systems in order to evaluate constant damage spectra of the strength reduction factors. Simplified relations depending on a limited number of significant parameters are then proposed to approximate the computed mean reduction factors, in order to derive inelastic response spectra directly from the elastic ones.
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Information
Published In
Journal of Structural Engineering
Volume 130 • Issue 9 • September 2004
Pages: 1298 - 1308
Copyright
Copyright © 2004 American Society of Civil Engineers.
History
Received: Jul 16, 2002
Accepted: Nov 19, 2003
Published online: Aug 16, 2004
Published in print: Sep 2004
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