地震工程学报2017，Vol.39Issue(4)：617-622,631,7.DOI:10.3969/j.issn.1000-0844.2017.04.0617
西北黄土地区地震作用下地铁车站动力响应分析
Dynamic Response Analysis of a Subway Station Under Seismic Action in the Loess Area of Northwest China
摘要
Abstract
Based on the explicit finite method of the ADINA software and the 32-CPU parallel computing cluster platform, a nonlinear seismic response calculation model of the interaction between the foundation soil and the station structure is established to study its nonlinear seismic response to the El-Centro, recorded Kobe ground motions, and the Lanzhou artificial waves under frequent seismic activity.Using the subway station of the subway line 1 in Lanzhou as an example, the results indicate that the vibration mode of the subway structure is similar to the foundation soil and the shape of the acceleration versus time-history curves of the midpoint of the ceiling, middle, and bottom of the subway station are all basically similar.Also, as the buried depth increases, the horizontal displacement of the center pillar and side wall decreases;the surface ground around the subway station produces a different degree of settlement.The settlement away from the subway station in the 7.5-m range is particularly serious because it led to partial damage around the buildings.关键词
西北黄土/地铁车站/动力响应/振型/地表沉降Key words
loess area in Northwest/subway station/seismic response/vibration mode/ground settlement分类
交通工程引用本文复制引用
任永忠,朱彦鹏..西北黄土地区地震作用下地铁车站动力响应分析[J].地震工程学报,2017,39(4):617-622,631,7.基金项目
甘肃省青年科技研究基金项目(1606RJYA255) （1606RJYA255）
兰州工业学院青年科技创新项目(16K-010) （16K-010）
