【摘要】 为深入研究地震作用下土-中庭式地铁车站系统的地震响应，采用有限元分析软件ABAQUS建立相应的三维数值模型，并基于振动台试验结果对其合理性进行了验证。利用经验证的模型开展了模拟分析，从场地响应、车站结构变形特征及应力响应三个方面分析了土-中庭式地铁车站系统的地震响应。结果表明：地震作用下，车站结构周围场地存在明显应力集中，顶底板周围土体的竖向位移明显大于场地其他位置；中庭式地铁车站结构存在明显的摇摆运动，站厅层横梁、站台层横梁和柱子变形较大。更多还原

【Abstract】 In order to conduct in-depth research on the seismic responses of soil and atrium-style subway station under earthquake action, a three-dimensional numerical model was established using ABAQUS software, and its rationality was verified based on the results of shaking table tests. Based on the verified model, simulation analyses were conducted, and seismic responses of the atrium-style subway station were analyzed, focusing on three aspects: deformation characteristics, train responses of the station structure and site seismic responses. The research results indicate that there exists significant stress concentration around the station structure, with vertical displacement of the soil around the top and bottom slabs being much larger than at other locations on the site. The atrium-style subway station structure exhibited noticeable swaying motion, with significant deformation observed in the cross beams of the station hall and platform layers, as well as in the columns.更多还原