（中南建筑设计院股份有限公司， 武汉 430071）

［摘要］介绍了黄石奥林匹克体育中心体育场的结构选型与布置、分缝方案比选、复杂节点设计。下部主体结构为钢筋混凝土框架结构，通过钢筋混凝土空腹桁架传递钢罩棚支座的水平反力，分缝方案可以显著释放下部混凝土结构的温度应力，动力特性也较好，是下部结构的理想方案。钢罩棚采用折形平面交叉钢桁架+树状钢支撑结构体系，采用不分缝方案，除了钢罩棚构件温度应力小幅增加外，抗震性能、对下部混凝土结构的影响都明显优于分缝方案，是钢罩棚的理想方案。

［关键词］体育场； 空间桁架； 平面交叉桁架； 树状支撑； 铸钢节点； 结构选型

中图分类号：TU375, TU391, TU393-3文献标识码：A文章编号：1002-848X(2020)08-0113-07

Structural design on the stadium of  Huangshi Olympic Sports Center

LUO Guifa, LI Hongsheng, LI Ting, LUO Yanqiong, LI Heping, CHI Bibo, WU Bingjiang

(Central-South Architectural Design Institute Co., Ltd., Wuhan 430071, China)

Abstract:The structural system selection and layout, the comparison and selection of joint schemes, and the design of complex joints of the stadium of Huangshi Olympic Sports Center was introduced. The main structure of the lower part is reinforced concrete frame structure. The horizontal reaction force of the steel canopy support is transmitted through the reinforced concrete vierendeel truss. The joint scheme significantly releases the temperature stress of the lower part of the lower concrete structure, and the dynamic characteristics are also good. Therefore, it is an ideal scheme of the lower part of the structure. The steel canopy adopts folded plane cross steel truss + tree-shaped steel support structural system, and adoptes undivided joint scheme. In addition to the slight increase in the temperature stress of steel canopy members, the seismic performance and the influence on the lower concrete structure are obviously better than those of the joint scheme, which is an ideal scheme for the steel canopy.

Keywords:stadium; spatial truss; plane cross truss; tree-shaped support; cast steel joint; structural system selection