Introducing a response-based duration metric and its correlation with structural damages
Abstract
This study proposes a response-based parameter for strong motion duration which is computed for structures and is the total time they are nonlinear during an earthquake. Correlation between structural response and duration for structures, subjected to a set of spectrum matched ground motions, is employed to examine the efficiency of the proposed method. The spectral matching procedure ensures that the influence of amplitude and frequency content of motions on structural response variability is significantly removed. Four concrete building type systems are studied and correlation coefficients of structural response with the proposed duration definition are examined. Comparison of the proposed method with other existing definitions, the record-based and response-based metrics, shows about 15-20% improvement in the correlation values.
Keywords
Cite
@article{arxiv.1906.10604,
title = {Introducing a response-based duration metric and its correlation with structural damages},
author = {Mohammadreza Mashayekhi and Mojtaba Harati and Morteza Ashoori Barmchi and Homayoon E. Estekanchi},
journal= {arXiv preprint arXiv:1906.10604},
year = {2020}
}
Comments
This paper is the final manuscript which has been published in the Bulletin of Earthquake Engineering