（湖南省建筑设计院， 长沙 410011）

［摘要］郴州市体育场主体采用钢筋混凝土框架结构，屋盖采用空间钢桁架结构。考虑混凝土和钢结构协同工作，有必要对其进行整体分析。在对结构进行整体分析计算时，重点和难点是超长结构设计和确定钢弧柱的计算长度系数。计算结果表明，降温荷载会使楼板中产生较大拉应力，楼板开洞部位拉应力集中；钢弧柱的平面内计算长度系数和平面外计算长度系数介于两端理想刚接和一端铰接一端刚接两种情况之间。

［关键词］体育场; 结构设计; 屈曲分析; 超长结构; 计算长度系数; 简化模型

中图分类号：TU318      文献标识码：A      文章编号：1002-848X(2014)12-0053-05

Key technical problems on main structural design of Chenzhou Stadium

Chen Yu, Wang Siqing, Huang Chun, Zhu Liang

（Hunan Provincial Architectural Design Institute, Changsha 410011, China）

Abstract: The major structure of Chenzhou Stadium adopts reinforced concrete frame structure and the roof adopts spatial steel truss structure. With consideration of the synergism of concrete and steel structure, it is necessary to analyze the overall structure. The design of super long structure and the determination of effective length factor of steel arc column are important but difficult in the overall structure analysis and calculation.The calculated results show that cooling load leads to major tensile stresses in the floor and the tensile stresses concentrate on the opening in the floor. The in-plane effective length factor of steel arc column and its out-plane effective length factor fall in between the value obtained when two ends are ideally rigid connected and the value obtained when one end is hinged and the other end is rigid connected.

Keywords: stadium; structural design; buckling analysis; super long structure; effective length factor; simplified model

作者简介：陈宇，硕士，工程师，Email：360047430@qq.com。

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