（1 上海建筑设计研究院有限公司, 上海 200041；2 SBP施莱希工程设计咨询有限公司, 上海  200031）

［摘要］苏州奥体中心体育馆钢屋盖受力体系由V形柱、摇摆柱、顶部环桁架和双向平面桁架组成，结构受力体系清晰。对结构进行了几何非线性整体稳定分析，整体稳定安全系数满足规范要求。考虑关键构件破坏后的动力效应，对钢屋盖进行了抗连续倒塌分析，结构不会出现连续倒塌。整体模型罕遇地震弹塑性时程分析和关键节点设计显示，整体结构和关键节点具有良好的受力性能。

［关键词］苏州奥体中心; 大跨度钢结构； 摇摆柱； 稳定分析； 抗连续倒塌； 弹塑性时程； 关节轴承

中图分类号：TU318文献标识码：A文章编号：1002-848X(2019)23-0012-03

Structural design on steel roof of gymnasium of Suzhou Olympics Sports Center

Xu Xiaoming1, Zhang Shichang1, Gao Feng1, Zhou Yuqing1, Lu Weiyan1, Chen Wei2

(1 Institute of Shanghai Architectural Design and Research Co., Ltd., Shanghai 200041, China; 2 Schlaich Bergerman Partner, Shanghai 200031, China)

Abstract:The mechanical system of the steel roof of Suzhou Olympic Sports Center Gymnasium is composed of V-shaped columns, rocking columns, top ring trusses and two-way plane trusses. The mechanical system of the structure is clear. The geometric nonlinear global stability analysis of the structure was carried out, and the overall stability safety factor meets the specification requirements. Considering the dynamic effect of key components after failure, the progressive collapse resistance analysis of the steel roof was carried out, and there is not a progressive collapse. The elastic-plastic time-history analysis and key node design of the whole model under the rare earthquakes show that the whole structure and key joints have good mechanical performance.

Keywords:Suzhou Olympics Sports Center; large-span steel structure; rocking column; stability analysis; progressive collapse resistance; elastic-plastic time history; spherical plain bearing

*华建集团科研项目（14-1类-0044-结），上海建筑设计研究院有限公司科研项目（院-13-1类-0052-结）。

作者简介：徐晓明，硕士，教授级高级工程师。Email:xuxm2@isaarchitecture.com。