【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.更多还原

【Abstract】 The National Stadium is one of the most important stadiums for Olympics 2008.The stadium roof (114 m×144.5 m) 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×14.45 m 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 axe destroyed).Transverse cable force,longitudinal cable force,stresses and deformation in the structure axe studied in detail.更多还原