北京铁路南站中央站房大型钢结构体系研究  

RESEARCH ON THE COMPLICATED STEEL STRUCTURE FOR BEIJING SOUTH RAILWAY STATION

作　　者：田承昊[1] 董城[1] 刘明[1] 郑健[2] 史月珍[1] 

机构地区：[1]铁道第三勘察设计院集团有限公司,天津300142 [2]铁道部,北京100844

出　　处：《钢结构》2012年第6期5-8,77,共5页Steel Construction

基　　金：铁道部重大课题(2007G045-A)

摘　　要：北京南站是大型现代化客运火车站,首次实现了桥梁结构和建筑结构的统一,即为"房桥合一"的结构体系。结合建筑特点对屋面与楼面结构体系进行优选:屋盖平面呈椭圆形,受力体系采用由两边跨的钢管桁架与中间跨的实腹式箱梁相结合的形式,站厅层采用框架结构。应用通用有限元软件进行整体结构分析,并着重介绍该工程的体系特点、中央屋盖钢结构形式方案优选、列车移动荷载激振下的振动分析。Beijing South Railway Station is combined with long-span structure, multiple story structure and bridge structure. How to select the floor and roof structure system according to the architectural characteristic is presented. In the roof, the ＂arch truss-box beam＂ combinatorial system is adopted. Analysis on both techniques and economics is comprehensively performed, and a reasonable and practical structural system is finally selected. The structure characteristic of the main elements is analyzed. By FEM analysis, structural optimization was performed on the basis of stress distributions to insure the safety of the key connections. The dynamic response of the station due to the crossing of train are studied.

关 键 词：北京南站 大跨度钢屋盖 结构选型 舒适度 

分 类 号：TU391[建筑科学—结构工程]