（1 中南建筑设计院，武汉 430071； 2 武汉大学，武汉 430072）
［摘要］新长沙火车站站台钢雨篷采用树状结构的刚架体系。从整体受力体系的角度来设计树状结构，进而详细分析其受力状况；通过非线性屈曲分析，跟踪加载的全过程，可知树状结构具有较好的稳定性和承载能力；采用有限元软件对其中的关键节点进行数值分析，结果表明节点具有较强的强度和刚度。整个结构体系满足规范要求。
［关键词］树状结构；整体受力体系；屈曲分析；节点分析
Design of the platform roof in Changsha New Railway Station
Zhou Jiachong1,2, Chen Xing1, Yu Yong1, Zhou Deliang1, Li Ting1, Guo Yaojie2(1 Central-south Architectural Design Institute,Wuhan 430071,China; 2 Wuhan University,Wuhan 430072, China)
Abstract:The platform roof of Changsha New Railway Station is made of rigid frame supported by tree structure. The tree structure should be regarded as a whole bearing structure, and detailed analysis was carried out. Then by using the non-linear buckle analysis, the whole loading process of the structure was tracked. Results prove that it has better stability and bearing capacity. At last, key nodes in tree structure were numerically analyzed with FEM software. Results show that the nodes are of enough strength and rigidity. The whole structure meets the regulation of codes.
Keywords:tree structure; whole bearing structure; buckle analysis; node analysis
作者简介：周佳冲，高级工程师，一级注册结构工程师，注册土木工程师(岩土)，注册咨询
工程师(投资)，Email:zny3szjc@sina.com。
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