大跨度椭球形索承单层网壳环索张拉仿真分析

Emulation Analysis of Hoop Cable Tension Construction of Large Span Cable-supported Single-layer Elliptical Lattice Shells

以常州体育馆索承网壳钢屋盖为例,对索承网壳预应力拉索施工方法中的环索张拉法进行虚拟仿真计算,分析了由于环索连接节点的构造处理及环索张拉点数量的不同对大跨度椭球形索承网壳预应力建立效果的影响,提出了适合该类结构的环索预应力张拉方法。

Taking Changzhou Gymnasium as example, some emulation calculations of tension construction of cable-supported lattice shells have been analyzed, especially in the analysis of hoop cable tension method. The influences on effect of prestressed establishment of large-span cable-supported single-layer elliptical lattice shells have also been researched, by considering differences of disposal of hoop cable connection and the amount of tension points. At last, authors put forward a suitable hoop cable tension method for similar structures.