汪大绥，  周建龙，  包联进，  姜文伟，  陈建兴，  黄永强
    (现代设计集团华东建筑设计研究院有限公司，上海200002)

[摘要] 演艺中心屋盖钢结构采用大跨空间钢桁架结构体系，沿环向支承在看台斜框架结构顶部。结构体系选型及布置综合考虑了建筑造型、内部使用空间以及悬挂荷载较大等要求。分别采用了单独模型和整体模型对竖向荷载、风荷载、温度作用、地震作用以及下部结构变形等荷载工况作用下的结构受力和变形进行了对比分析。
[关键词] 空间桁架；结构选型；计算模型；结构变形

Structural Design and Analysis of the Roof for Expo Performance Center
Wang Dasui, Zhou Jianlong, Bao Lianjin, Jiang Wenwei, Chen Jianxing, Huang Yongqiang
( East China Architecture Design&Research Institute Co. , Ltd. , Xian Dai Architectural Design Group, Shanghai 200002)

Abstract: Expo Performance Center's steel roof adopts large span- space truss system, which is supported on the to Pof the leaning frame of the stand in circumferential direction. The structural system is decided to meet the requirements of architectural outline, usage of the inside space and large suspension load. Roof individual model and structural integral model are both analyzed to make comparison of the structural load-bearing performance and deformation considering the vertical load, wind load, thermal action, seismic action and the impact of the deformation of the sub-structure.
Keywords: space truss; comparison of structure system; analysis model; deformation