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。
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 difficuh 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 are column and its out-plane effective length factor fall in between the value obtained when two ends arc ideally rigid connected and the value obtained when one end is hinged and the other end is rigid connected.
出处
《建筑结构》
CSCD
北大核心
2014年第12期53-57,共5页
Building Structure
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
stadium
structural design
buckling analysis
super long structure
effective length factor
simplified model
