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新建铁路站房较多采用混凝土框架加折线形钢网架屋盖的混合结构体系,结合某新建的大跨度站房,采用SAP2000软件对混凝土框架加钢网架屋盖的结构进行动力分析,利用反应谱分析和时程分析方法研究了此混合结构的抗震性能,两种方法的计算结果基本一致。研究表明该结构体系合理,抗震性能良好,研究结果可为其他铁路站房的设计提供参考。
The new railroad station building mostly adopts the mixed structure system of concrete frame and crease steel truss roof. Combined with a newly built large-span station building, the structure of the steel truss roof of concrete frame is analyzed by SAP2000 software. Response spectrum analysis and time-history analysis of the seismic performance of the hybrid structure, the two methods are basically the same. The research shows that the structural system is reasonable and the seismic performance is good. The research results can provide reference for the design of other railway station buildings.