摘要
通过模型试验研究了国家体育馆屋盖双向张弦结构的预应力施加方法。从索力大小、钢结构应力和竖向位移及其变化幅度等方面对比分析了两种张拉方法的优缺点。最后得出适合国家体育馆的预应力施工方案,所得结论对双向张弦结构预应力施工方法具有实际借鉴意义。
It has been studied the prestressing construction technology of bidirectional truss string structure of the National Gymnasium. The two methods of tensioning cables are compared from thee aspects： cable forces, axial stress and vertical displacements. From the experimental results it has been decided which method is better to complete prestressing construction. The conclusion can be referenced by other similar projects.
出处
《工业建筑》
CSCD
北大核心
2007年第1期16-19,25,共5页
Industrial Construction
关键词
双向张弦
索力
钢结构应力
竖向位移
bidirection string structure cable forces axial stress vertical displacement
