包头站站台雨棚结构设计研究

包头站站台雨棚采用分叉式钢管混凝土柱与双向正交钢梁组成的钢框架结构体系,钢管混凝土分叉柱为雨棚梁提供了更多的支撑点,有效地减小了雨棚梁的计算跨度,使得结构更加合理。介绍该工程的结构布置、结构分析及重要节点设计。对分叉式钢管混凝土柱的受力性能进行分析研究,得出分叉柱的支撑角在35O~50O变化时,分叉式钢管混凝土柱与雨棚梁形成的结构体系可达到最优的受力状态,使得结构最为经济、合理。

Structure Design and Research of Platform Canopy at Baotou Railway Station

The steel frame structure system,which consists of bifurcated concrete-filled steel tube columns and two-way orthogonal steel beams,was used in the platform canopy at Baotou Railway Station. In this way,the bifurcated concrete-filled steel tube column can provide more supporting points for the steel beam of the canopy,can effectively reduce the calculation span of steel beam of the canopy,and so can make the structure more reasonable. In this paper,the structure arrangement,structure analysis and the design of the main joints were introduced,and the mechanical behavior of the bifurcated concretefilled steel tube columns was analyzed and researched. Finally,this paper come to a conclusion that if the supporting angle of the every bifurcated column ranges from 35° to 50°,the structure system,which consists of bifurcated concrete-filled steel tube columns and canopy beams,will be in a state of optimal mechanical behavior,and so will be the most economical and reasonable one in this kind of structures.