地铁上盖物业车站整体结构抗震分析

Anti-Earthquake Analysis on Overall Structure of Metro Station Superstructures

北京地铁14号线某站为地铁车站上盖物业结构形式,文章采用时程分析法、粘弹性人工边界,建立结构-基础-地基整体计算模型,对地铁车站上盖物业这种地下+地上复合结构进行专项抗震计算研究。研究结果表明,地震组合工况在地铁结构设计中不起控制作用,地下结构的最大相对水平位移峰值发生在地下结构顶板上,应加强对其抗震设计,切实提高地铁车站结构的整体抗震性能。

The paper uses time-history analysis, visco-elastic artificial boundary, establishes the structure - foundation - foundation overall computing model, and makes special studies on anti-earthquake calculation of structures above metro stations with composite structures of underground and above ground. The results show that a combination of the seismic conditions cannot play a role to control in metro structural design, peak value of maximum relative lateral displacement of underground structures occurs on roof of underground structures. Anti-earthquake design should be strengthened, to effectively improve overall anti-earthquake performance of metro station structure.