摘要
天津体育中心自行车馆钢屋盖采用弦支穹顶结构体系,针对正交网格弦支穹顶结构的特点,对上部结构网格进行优化以方便索杆体系的设置。分析了作用于结构的恒荷载、活荷载、风荷载、温度作用以及地震作用等,并对各种工况进行组合,分析结构静力、动力性能,确保结构安全可靠。分析表明:局部肋环形网格划分可以有效解决正交网格周边索杆体系布置困难的问题;向心关节轴承撑杆上节点可以简化铰接节点构造;地震参与工况对结构内力不起控制作用。
The steel roof of bicycle gymnasium in Tianjin Sports Center adopts suspend-dome structural system. Based on the characteristics of the suspend-dome structure with orthogonal grids,the grid optimization for the upper structure was carried out so as to arrange the cable-strut system. The dead load,live load,wind load,temperature effect and earthquake effect were combined to analyze the static force and dynamic performance of the structure to ensure the safety and reliability of the structure. The results show that local rib circular grid is effective to solve the problem in setting cable-strut system near orthogonal grids. The top node of radial spherical plain bearing can simplify the structural details of the hinged joint.The earthquake load case is not the controlling load case.
出处
《建筑结构》
CSCD
北大核心
2015年第5期6-9,共4页
Building Structure
基金
国家自然科学基金(51478310)
关键词
弦支穹顶
预应力优化
静力分析
动力分析
向心关节轴承
suspend-dome
pre-stress optimization
static analysis
dynamic analysis
radial spherical plain bearing
