［摘要］柳州李宁体育馆包括主馆和训练馆两个单体，外形酷似大小不同的两块石头。如何构造出符合建筑设计要求的外形是本项目结构设计首先要解决的难题。经结构选型分析，主馆中心屋盖采用双向桁架结构，外圈屋盖和墙体采用半跨刚架结构；训练馆采用异形门式刚架结构。因主馆和训练馆屋盖均有起拱，故两馆屋盖周边均设有较强的环箍。为了保证主馆双向桁架交汇节点的刚性，采用了一种矩形截面构件扭转交汇焊接相贯节点，介绍了该类型节点的构造并进行了有限元分析。
［关键词］体育馆；结构选型；双向桁架；门式刚架；扭转交汇焊接相贯节点
中图分类号：TU392文献标识码：A文章编号：1002-848X(2011)12-0101-07
Study and design on steel structure of Liuzhou Li Ning Gymnasium
Wang Fan, Guo Fengshuo, Zhang Zhigang, Luo Yongcheng, Zeng Yunsheng(Architectural Design and Research Institute, South China University of Technology, Guangzhou 510640, China)
Abstract:Liuzhou Li Ning Gymnasium includes the main gymnasium and training gymnasium. Its shape looks like two different sizes of stones. The first important problem is how to construct a shape that could fit architecture requirement in the structural design of the project. By the analysis of structural selection, two-way truss structure system and half-span rigid frame are respectively adopted in the upper roof of main gymnasium within concrete column grid and the roof and wall outside concrete column grid, meanwhile, portal-rigid frame is adopted in training gymnasium. Because of the obvious arch of the main gymnasium and training gymnasium, strong hoops are set in rotation with two roofs. In order to ensure the rigidity of joint that two-way trusses meet, a kind of reverse-intersect of rectangular-section steel members welding intersection joint is adopted in this project. Structure and finite element analysis of this type of joint are focused on.
Keywords:gymnasium; structural selection; two-way truss; portal-rigid frame; reverse-intersect welding intersection joint
作者简介：王帆，博士，副教授，一级注册结构工程师，Email：wangfan@scut.edu.cn。
参考文献
［1］黄泰赟,蔡健. 广州歌剧院空间异型大跨度钢结构设计［J］建筑结构学报，2010, 31（3）：89-96.
［2］傅学怡,高颖，杨想兵.济南奥体中心体育场大跨空间结构总装分析［J］.建筑结构学报，2008,29（S1）：176-182.
［3］GB 50011—2010 建筑抗震设计规范［S］. 北京：中国建筑工业出版社，2010.