【摘要】 以成都地铁5号线某站为背景,基于结构分析软件SAP2000,分别建立了桥梁与地铁车站合建情况下站桥连接合建与分离合建两种简化模型。选取3组台湾集集地震远场地震动,对两种简化模型进行三向地震动输入下的时程分析。结果表明,地震作用下,与连接合建式车站相比,分离合建式车站的下层墩柱柱底的纵向弯矩和部分顶板控制截面的横向弯矩显著降低,水平方向上的抗震性能明显更优。分离合建式车站的结构抗震性能更强,结构形式更合理。更多还原

【Abstract】 Taking Sichuan Provincial Orthopaedic Hospital Station in Chengdu Metro Line 5 as an example,a connection integrated station-bridge structure model and a separation integrated station-bridge structure model were established respectively based on the structural analysis software SAP2000. Selecting three groups of farfield ground motions in Taiwan Chi-Chi earthquake, the time history analysis with three directional ground motion input was carried out. The results showed that under the action of ground motions, the longitudinal bending moments at the bottom of the pillars and the lateral bending moments at partial control sections of apical plate in separation integrated station-bridge structure were reduced significantly compared with connection integrated station-bridge structure. And the seismic performance in the horizontal direction was better. As a result, the seismic performance of separation integrated station-bridge structure is better, and its structure form is more reasonable.更多还原