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对天津国家会展中心展览大厅凹形四弦桁架结构特点进行了详细分析介绍,对凹形四弦桁架结构进行了详细的静、动力特性及地震作用参与组合下的结构内力分析,得到了结构杆件的内力分布情况、凹形四弦桁架结构的刚度分布及人字柱柱脚支座受力特点.同时针对国家会展中心展览大厅进行了结构方案比选,在柱子形式及约束等一致的前提下,针对屋盖结构分别进行不同结构体系与凹形四弦桁架结构体系的对比分析,得出不同结构体系的受力特点及经济效益上的优缺点.对凹形四弦桁架柱的结构性能有了全面了解,为工程的实施提供了参考依据.
The structure characteristics of the concave four-stringed truss structure in the exhibition hall of Tianjin National Convention and Exhibition Center are analyzed in detail. The detailed structural and dynamic analysis of the concave four-stringed truss structure with the participation of the earthquake action is carried out. The distribution of internal forces, the stiffness distribution of the concave four-stringed truss structure, and the force characteristics of the pedestal and column bearing of the stud.At the same time, the structural scheme comparison was conducted for the exhibition hall of the National Convention and Exhibition Center, , The contrastive analysis of different structural system and concave four-string truss structure system for the roof structure was carried out, and the force characteristics and economic advantages and disadvantages of different structural systems were obtained.The structural performance of the concave four-stringed truss column With a comprehensive understanding, it provides a reference for the implementation of the project.