局部液化土层中某地铁车站换乘节点工程结构抗震性能数值模拟与分析  

Numerical Simulation and Analysis of Structural Anti-Seismic Performance of One Subway Station Transfer Joint Under Condition of Partly Liquefied Soil Layer

作　　者：高书通 

机构地区：[1]广州地铁设计研究院有限公司,广东广州510010

出　　处：《建筑施工》2017年第6期883-885,共3页Building Construction

摘　　要：以局部液化土层中某地铁车站换乘节点工程为依托,通过对局部土层液化情况的判定对其抗剪强度进行相应折减,并采用时程分析方法对液化土层中错层、T形、曲线地铁车站换乘节点在罕遇地震作用下的受力状态与变形情况进行模拟,最终基于层间位移角对车站结构的抗震设防性能进行分析与评价。结果表明,地铁车站换乘节点中埋深较浅的结构相对而言更不利于抗震,在设计时需加强其相应部位的抗震构造措施,为新建类似地铁车站的抗震设计及性能评估提供重要参考。Based on one subway station transfer joint engineering under partly liquefied soil layer condition, through the corresponding reduction of shear strength according to the determination under partly liquefied soil layer condition, the stress state and deformation of staggered-floors, T-shape and curve subway station joint under rare earthquake action in liquefied soil layer have been simulated by using time-procedure analysis method and finally the anti-seismic behavior of the subway station structure based on interlayer displacement angle has been analyzed and evaluated. The results show that the shallow buried structure in the transfer joint of subway station has relatively disadvantage of antiseismic behavior. Therefore, earthquake-resistant constructional measures should be strengthened in relevant locations in the design stage, so as to provide important references of anti-seismic design and performance evaluation for similar new subway stations.

关 键 词：抗震性能 地铁车站 换乘节点 液化土层 数值模拟 时程分析 

分 类 号：TU311.3[建筑科学—结构工程]