（华东建筑设计研究总院， 上海 200002）

［摘要］成都大魔方演艺中心大陀螺钢屋盖采用大跨度空间桁架结构体系，不均匀地承重于剪力墙、部分筒体及框架柱上，支承条件复杂。设计时采用单独的钢屋盖结构模型和含钢屋盖与下部混凝土结构的整体模型进行对比分析，分析结果表明，设计中应充分考虑下部结构对钢屋盖的影响。选取钢屋盖中的关键节点进行有限元模拟分析，针对应力较大的节点，采取有效的加强措施。设计结果表明，屋盖结构不仅能满足建筑的外观及复杂的功能要求，而且具有可靠的受力性能。

［关键词］钢屋盖; 空间桁架结构; 上下部结构相互作用; 抗震球形支座; 节点; 有限元分析

中图分类号：TU393.3      文献标识码：A      文章编号：1002-848X(2014)07-0043-07

Structural design and analysis on steel roof of the main venue of Chengdu Large Magic Cube Performing Arts Center

Zhou Jian, Zhou Hui, Zhang Yaokang, Zhang Weiyu

 (East China Architectural Design & Research Institute, Shanghai 200002, China)

Abstract: The roof structure of the main venue of Chengdu Large Magic Cube Performing Arts Center is a large span space truss supported on the shear walls, tubes and frame columns. The support conditions are complex and non uniform. The analysis, considering the interaction of roof and the lower structure was compared with what, considering the steel roof structure only. It was indicated that the influence of lower structure on the steel roof is significant enough to be considered. Key joints were researched by finite element analysis, and the high stressed connections were strengthened effectively. Design results show that the structure not only meets the architectural feature and function satisfactorily, but also has reliable mechanical performance.

Keywords: steel roof; space truss structure; interaction of upper and lower structure; seismic spherical bearing; joint; finite element analysis

*国家科技支撑计划资助（2011BAJ09B01）。

通讯作者：周慧，硕士，工程师，Email:hui_zhou@ecadi.com。

参考文献

［1］蒋本卫. 成都大魔方演艺中心大陀螺主体结构设计与分析［J］. 建筑结构, 2014，44（7）：37-42.

［2］周建龙, 包联进, 陈建兴, 等. 世博文化中心钢屋盖结构设计［J］. 建筑结构学报, 2010, 31(5):103-109.

［3］李承铭, 王国俭, 汪大绥, 等. 上海东方艺术中心钢结构屋盖计算分析［J］. 建筑科学, 2005, 21(6):31-40.

［4］葛家琪, 王树, 梁海彤, 等. 河南艺术中心大剧院钢屋盖基于延性的性能化设计研究［J］. 建筑结构, 2008, 38(12):1-6.

［5］张聿, 刘明国, 芮明倬, 等. 天津大剧院结构设计［J］. 建筑结构, 2012, 42(5):119-124.

［6］建研科技股份有限公司. 成都大魔方项目测压风洞试验报告［R］. 北京: 建研科技股份有限公司, 2011.

［7］建研科技股份有限公司. 成都大魔方项目屋面风振响应和等效静力风荷载研究报告［R］. 北京: 建研科技股份有限公司, 2011.