郝朝伟, 陈彦江, 何浩祥, et al. The Endurance Time Method in the Seismic Analysis of the Continual Rigid-bridge with High Piers[J]. 2017, 37(2): 215-221. DOI: 10.13409/j.cnki.jdpme.2017.02.006.
The Endurance Time Method in the Seismic Analysis of the Continual Rigid-bridge with High Piers
The endurance time method(ETM)is a time-history based dynamic pushover procedure for seismic analysis and design of structures.Compared with other seismic analysis methods
endurance time method is more advantageous for nonlinear analysis of complex structures.Based on a typical continuous rigid frame bridge with double-leg thin-walled high piers
the concept of endurance time method is introduced to generate an endurance time accelerogram based on the design spectra in Chinese Bridge Seismic Design Code.Application of the endurance time method in the nonlinear seismic analysis of complex bridges with high piers is the main purpose of this study.Considering the particularity of bridges with high piers
a new method is proposed to calculate weighting coefficient of Park-Ang damage index.The results show that structural responses using endurance time method are usually between envelopes of traditional nonlinear time history analysis;The inherent energy in structures using endurance time method is larger than that of natural records whose duration time is mean;Endurance time method can be efficient to choose the bridge structure primary selection in structural seismic analysis.
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