摘要
2008年奥运会羽毛球馆屋盖结构跨度93m,矢高9.3m,矢跨比1/10,经过多轮多层次优化采用了张弦穹顶结构。对张弦穹顶和单层网壳分别进行了包括内力、节点位移、特征值屈曲和非线性屈曲的荷载位移平衡路径的跟踪分析,阐述了结构选型的依据。分别以网壳杆件内力和节点位移为目标函数编制了优化程序,研究了钢索合理预应力水平的确定方法,分析了初始几何缺陷对整体稳定的影响,提出了初始几何缺陷的合理施加方法。
The suspend-dome with span of 98m, rise of 9.3m and rise-span ratio 1/10 is adopted in Badminton Gym for 2008 Olympic Games. Analyses including force, displacement, eigenvalue buckling and nonlinear buckling to suspend-dome and single layer shell are conducted separately, the proof of selecting suspend-dome is provided. Programs with the axis force and joint displacement of upper dome as object function are developed respectively, the effective method of prestress level is researched. The influence of initial geometrical defect on the integral stability is studied and the method of applying initial geometrical defect is developed.
出处
《工业建筑》
CSCD
北大核心
2007年第1期8-11,46,共5页
Industrial Construction
基金
北京市科委奥运专项资助项目(编号:2000519104011)
北京市拔尖创新人才工程资助项目
国家自然科学基金资助项目(批准号:50678012)
关键词
奥运会羽毛球馆
张弦穹顶
整体稳定
初始几何缺陷
Olympic Badminton Gym suspend-dome integral stability initial geometrical defect
