开闭式曲面屋盖体系分析中与结构移动有关的若干问题

Some Issues About Roof Moving in Analysis for Retractable Roof Structures with Curved Surface

南通市体育会展中心体育场钢屋盖开闭顶结构设计中,对屋盖"移动"课题进行了专项研究。根据台车构造,分析了其与上下结构连接的特点,设定了结构分析模型中台车两端的约束条件;确定了牵引力的变动范围;详细计算了移动过程中台车反力的变化、结构固定部分和活动部分的内力变化和位移变化;讨论了由于台车的介入,结构上下两部分间的相互约束和影响。

In design of the retractable roof structure of the stadium at Nan Tong Sport Center,the subjects concerning movable roof are studied.The study covers the following issues:to research the characters of the connections between the trolley and the structures in order to set the restrained condition on the two ends of the trolley in structural analysis model,to ascertain the range of drag forces and their distribution,to compute the change of reaction in the trolley as well as the change of inner force and deformation of the structure with the move of the movable roof.The inter reaction between the movable and fixed roofs connected by trolleys is discussed.