摘要
以国家体育馆比赛馆为原型,制作了1:10结构试验模型.通过模型试验研究了双向张弦结构的力学性能.试验内容包括不同顺序的张拉方法和不同加载方案,测试了在张拉和加载过程中钢结构应力和拉索索力的变化情况,从横向拉索索力、纵向拉索索力、钢结构应力和结构变形等4方面详细研究了结构的性能.对双向张弦结构性能特点进行了总结,提出了一些对后续研究工作有益的结论.
The National Stadium is one of the most important stadiums for Olympics 2008. The stadium roof （114m×144.5m） is two-way beam string structure （TBSS）, a new and efficient spatial structure. To study the mechnical features of the structure, a 1：10 structure model of 11.4m×14.45m is made. The following cases are included in the experiment： different tension methods, different load cases and emergency load cases （such as when the cables are destroyed）. Transverse cable force, longitudinal cable force, stresses and deformation in the structure are studied in detail.
出处
《力学与实践》
CSCD
北大核心
2008年第3期28-35,共8页
Mechanics in Engineering
基金
北京市科技计划项目资助(Z005184041131)．
关键词
双向张弦结构
模型试验
静力性能
two-way beam string structure, model experiment, static characteristics
