摘要
以北京市某地铁车站为工程依托,对比分析了反应位移法和非线性时程分析法在暗挖地铁车站抗震设计中的应用问题,以确定在地震作用下地铁车站结构的可靠性和稳定性。通过分析可知,2种计算方法的计算结果规律虽整体一致,但反应位移法位移计算值约为非线性时程分析法的1.55倍;鉴于地铁车站工程抗震研究的复杂性和地震破坏的严重性,应同时采用2种方法进行包络计算和设计。后续应进一步研究不同场地条件下地铁车站结构的抗震性能,以寻求不同地层、不同结构形式下准确、可靠的抗震分析方法。
Based on a subway station in Beijing, the application problems by the response displacement method and the nonlinear time history analysis method in the seismic design of the underground excavation subway station are compared and analyzed to determine the reliability and stability of the subway station structure under the earthquake action. It can be seen from the analysis results that although the calculation results of the two calculation methods are consistent, the displacement calculation value of the reaction displacement method is about 1.55 times that of the nonlinear time history analysis method;In view of the complexity of the seismic research and the severity of the earthquake damage of the subway station project, both the two methods should be adopted to envelope calculate and design. It is considered that the seismic performance of the subway station structure should be further improved in follow-up study under different site conditions so as to find an accurate and reliable seismic analysis method under different strata and structural forms.
作者
张美琴
张金伟
杨斌斌
Zhang Meiqin;Zhang Jinwei;Yang Binbin(China Railway Liuyuan Group Co.,Ltd.,Tianjin 300308,China)
出处
《市政技术》
2022年第10期136-142,共7页
Journal of Municipal Technology
关键词
地铁车站
暗挖
抗震设计
反应位移法
非线性时程分析法
subway station
concealed excavation
seismic design
reaction displacement method
nonlinear time history analysis method
