(中信建筑设计研究总院有限公司， 武汉 430014)

［摘要］ 第七届世界军运会主会场空中威亚系统属于双层单索悬索结构，结构形式选用钢桁架立柱+锚索+悬索结构。在悬索两端设置钢桁架立柱，立柱之间采用钢桁架连接，增加结构整体性。主要介绍了该项目的预张力悬链线设计，通过合理的结构设计，实现了初始预应力状态钢桁架立柱塔顶水平变形为零的控制目标，满足了导演组提出的单索悬索结构的小垂度大载荷的要求。 

［关键词］第七届世界军运会；武汉体育中心；体育场；双层单索悬索结构；钢桁架立柱；悬链线设计 

中图分类号：TU393-3 文献标识码：A文章编号：1002-848X(2021)22-0043-06

Design and analysis of double-layer single-cable suspension WIA structure in the main session of 7th CISM Military World Games 

LI  Zhi,  TU  Jian,  YANG  Yuanqiang,  CAO  Kai 

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

Abstract: The WIA structure in the main session of 7th CISM World Military Games belongs to the double-layer single-cable suspension structure, and the structural type is steel truss column+anchor cable+suspension cable structure. Steel truss columns are set at both ends of the suspension cable, and steel truss is used to connect the columns to increase the integrity of the structure. The pretension catenary design of the project was mainly introduced，through reasonable structural design, the control target of zero horizontal deformation on the top of the steel truss column tower in the initial pre-stress state is achieved, which meets the requirement of the single-cable suspension structure with small sag and large load proposed by the director group. 

Keywords:7th CISM World Military Games； Wuhan Sports Center; stadium; double-layer single-cable suspension structure； steel truss column； catenary design

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