【摘要】 研究目的:采用ANSYS软件计算某地铁车站的土-结构体系在地震荷载作用下的动力响应问题,对土-结构相互作用体系模型的建立、模型参数的确定、人工边界条件的设置等问题进行分析,探索地铁车站在水平地震作用下的内力和变形规律。研究结论:(1)地下结构的动力响应特征主要受周围土体介质的特性影响,在水平地震作用下,其水平位移受到周围土体的约束,随土体共同运动,沿结构高度变化不大;(2)结构的外围构件由于直接与土相互作用,一般承受较大的弯矩;(3)中间柱会产生较大的弯矩和剪力,易使中柱产生弯剪破坏;(4)本文结论可为地铁车站及其他地下结构的抗震设计提供借鉴。更多还原

【Abstract】 Research purposes: This paper researches the dynamic response of a soil-structure system of one subway station under the seismic load with ANSYS software and analyzes the issues on establishment of the system interaction model for the soil structure,the determination of the model parameters and the setting up of the artificial boundary condition to seek the internal force and deformation behaviors of the subway station under seismic action. Research conclusions:(1)The characteristics of the dynamic response of underground structure was associated with the soil characteristics.The horizontal deformation of the underground structure was limited by the soil,with its movement with the soil and a little variation along the structure height.(2)The moment of the outside component was larger because of the direct contact with the soil.(3)The earthquake can increase the moment and the shearing force to the middle column significantly,so the column would be more easy to be damaged.(4)The results can provide reference to the seismic design of subway station or other underground structure.更多还原