(中信建筑设计研究总院有限公司， 武汉 430014)

［摘要］以第七届世界军运会主赛场钢结构屋盖为例，对车辐式索承网格钢结构屋盖进行初始预应力状态分析、静力弹性分析、施工模拟分析和结构稳定性分析。采用MIDAS Gen软件建立结构模型，分析车辐式索承网格钢结构屋盖在规范规定的荷载单工况和组合工况下的内力和变形，并对比各工况下车辐式索承网格钢结构屋盖相对于初始预应力状态下的内力变化情况，对索张拉施工全过程进行模拟分析，对结构模型模态进行分析。结果表明，车辐式索承网格钢结构屋盖在各工况下的验算结果均满足规范要求，初始预应力状态分析与施工模拟分析的构件内力和变形基本吻合，施工模拟全过程分析的构件内力均小于静力弹性分析，稳定性分析结果表明结构具有足够的安全储备。

［关键词］第七届世界军运会主赛场； 车辐式索承网格； 静力弹性分析； 施工模拟分析； 结构稳定性分析

中图分类号：TU398-7文献标识码：A文章编号：1002-848X(2019)12-0053-06

Steel roof design of spoke-typed cable supported lattice structure for the Main Stadium of Seventh World Military Games

Li Zhi， Wang Hongjun， Tu Jian， Wang Hai

(CITIC General Institute of Architectural Design and Research Co., Ltd., Wuhan 430014, China)

Abstract:Taking the steel structure roof of the Main Stadium of Seventh World Military Games as an example, the initial prestressed state analysis, static elastic analysis, construction simulation analysis and structural stability analysis of the car spoke-typed cable supported lattice steel roof were carried out. The structural model was established by MIDAS Gen software, and the internal force and deformation of the car spoke-typed cable supported steel roof under the specified load and single working conditions were analyzed. In addition, the internal force of the steel structure roof with car spoke-typed cable supported lattice under various working conditions was compared with that under the initial prestress state, and the whole process of cable tension construction was simulated and analyzed, and the modal of the structure model was analyzed. Results show that the calculation results of car spoke-typed cable supported lattice steel roof under various working conditions can satisfy the requirements of specification. The analysis of initial prestress state is in good agreement with the analysis of internal force and deformation. In the whole process of construction simulation, the internal forces of components are smaller than the static elastic analysis. The results of stability analysis show that the structure has sufficient safety reserve.

Keywords:the Main Stadium of Seventh World Military Games; car spoke-typed cable supported lattice; static elastic analysis; construction simulation analysis; structural stability analysis

作者简介：李治，硕士，教授级高级工程师， Email: lizhi_whadi@163.com。