Evaluation of Intensity Measures for Pulse-Like Ground Motions

Jing Zhou; Kai Liang Chen; Lian Heng Zhao

doi:10.4028/www.scientific.net/AMR.163-167.4350

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 163-167Evaluation of Intensity Measures for Pulse-Like...

Evaluation of Intensity Measures for Pulse-Like Ground Motions

Abstract:

The correlation between intensity measures (IM) for pulse-like ground motions and nonlinear deformation demand of single-degree-freedom-systems (SDOF) is researched, and the efficiency of IM is described. Based on dynamic time analysis of SDOF systems subjected to 72 pulse-like ground motions, the present study investigates the variation of the correlation coefficient between IM for pulse-like ground motions and maximum nonlinear deformation demand of SDOF with the constant-ductility or constant strength system setting. Linear regression analyses are performed on these results to identify the efficiency of peak ground velocity (PGV) and spectral acceleration Sa(T1), which is used as IM for pulse-like ground motion. The study shows that IM of pulse-like ground motions depend distinctly on the system period, ductility levels and strength reduction factors have important influence on the correlation and dispersion, and Sa(T1) and PGV are relatively the good IM for pulse-like ground motion.

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Periodical:

Advanced Materials Research (Volumes 163-167)

Pages:

4350-4355

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.163-167.4350

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Online since:

December 2010

Authors:

Jing Zhou, Kai Liang Chen, Lian Heng Zhao

Keywords:

Correlation, Efficiency, Intensity Measure, Pulse-Like Ground Motion, Single Degree Freedom System

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