防灾减灾工程学报2017，Vol.37Issue(2)：215-221,7.DOI:10.13409/j.cnki.jdpme.2017.02.006
耐震时程法在高墩刚构桥抗震分析中的应用
The Endurance Time Method in the Seismic Analysis of the Continual Rigid-bridge with High Piers
摘要
Abstract
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.关键词
耐震时程法/IDA/易损性/Park-Ang损伤指标/系梁Key words
ETM/IDA/vulnerability/Park-Ang seismic damage index/tie beam分类
交通工程引用本文复制引用
郝朝伟,陈彦江,何浩祥,王力波,蔡江龙..耐震时程法在高墩刚构桥抗震分析中的应用[J].防灾减灾工程学报,2017,37(2):215-221,7.基金项目
国家自然科学基金项目(51378037 （）
51378039 （）
91315301-03)资助 （）
