土-结构相互作用地铁车站三维有限元分析

采用有限元分析方法对大连南关岭地铁车站结构强度大变形问题进行了三维分析．获得了地铁车站结构在上压力，浮力，恒、活荷载等综合载荷作用下位移量及其对比关系，土-车站结卡勾的相互作用对柱、侧墙等结构应力的分布情况的影响．与以往地下乍站二维模型分析结果对比，三维模型更合理，更全面，更接近工程实际．较真实地反映了地铁车站结构的变形受力特点．

Finite Element Analysis of Three-Dimensional Soil-Structure Interaction Subway Station

Using finite element analysis method, large deformation problem of Dalian South GuanLing subway station is analyzed. The displacement and their contrast relationship of the subway station structure in the soil pressure, buoyancy, constant, live load, and other comprehensive loads are obtained, meanwhile the distribu- tion of structural stress of columns and side walls is also derived. Comparing to previous underground station 2d model, this 3d model is more reasonable and comprehensive, in which the distortion of the structure and mechanical characteristics can be reflected truly.