丰台站屋盖钢结构整体稳定性分析与水平支撑设置研究  

Analysis of Overall Stability and Horizontal Support Design of the Steel Roof in Fengtai Railway Station

作　　者：毋英俊 唐虎 米宏广 王强 张学哲 马宏睿 常兆中 程卫红 Wu Yingjun;Tang Hu;Mi Hongguang;Wang Qiang;Zhang Xuezhe;Ma Hongrui;Chang Zhaozhong;Cheng Weihong(China Railway Design Corporation,Tianjin 300308,China;China Academy of Building Research,Beijing 100013,China;National Engineering Research Center of Building Technology,Beijing 100013,China)

机构地区：[1]中国铁路设计集团有限公司,天津300308 [2]中国建筑科学研究院有限公司,北京100013 [3]国家建筑工程技术研究中心,北京100013

出　　处：《建筑科学》2020年第9期182-189,共8页Building Science

基　　金：新时代绿色智能客站技术体系研究与示范应用(K2018B002),中国国家铁路集团有限公司重大课题

摘　　要：北京丰台铁路枢纽站房工程是国内首座双层车场铁路站房。站房工程进站厅与高速站台雨棚连为一体,进站厅与高速场雨棚屋盖均采用十字形钢柱加双向桁架结构体系。本文研究了屋盖钢结构柱的整体稳定性能,采用准直接分析法验证了钢柱设计的安全可靠。对比了屋面水平支撑不同设置方式对屋面整体刚度的影响,结果表明在柱刚度和屋面桁架系统水平刚度均较大的情况下,水平支撑对屋面刚度影响不大。Beijing Fengtai Railway Station project is the first double-floor railway station in China. The entrance hall of the station is connected by the high-speed platform canopy. Both the entrance hall and the high-speed platform canopy adapt the structure system composed of cross-shaped steel column and two-direction truss. In this paper, the overall stability of steel roof columns is studied, and the quasi-direct analysis method is used to verify the safety and reliability of steel column. The influence of different setting modes of horizontal support on the overall stiffness of roof is also compared. The results show that the horizontal support has little effect on the roof stiffness, when the column stiffness and the horizontal stiffness of roof truss system are larger.

关 键 词：铁路站房 交通枢纽 钢结构 钢柱稳定 直接分析法 

分 类 号：TU312[建筑科学—结构工程]