摘要
弦支穹顶结构是一种新型的空间张拉结构体系,兼具索穹顶结构的柔性和单层网壳结构的刚性,既经济美观,又具有良好的整体刚度和承载能力。然而,空间结构的稳定性一直是研究设计该类型结构的关键问题,以至在结构及杆件设计中常起到主要控制作用。基于基本的稳定理论,对于弦支穹顶结构体系的线性及非线性稳定性进行深入研究,建立一套系统的稳定计算方法及杆件计算长度系数的合理取值方法,并指导应用于华南地区首例采用弦支穹顶结构体系的2011年世界大学生运动会(深圳)篮球馆屋盖结构的设计中,取得良好的经济效果。
The prestressing suspend dome is a kind of novel tension space roof structure.This structure type has both the flexibility of prestressing cable dome and stiffness of single-layer latticed shell,with economical and beautiful characteristic,and better structural stiffness and loading capacity.While,the stability of space structures is always the key point in the research and design of this kind of structure,even being the primary design control case.Based on the basic stability analysis theories,the linear and nonlinear stability of prestressing suspend dome is deeply researched,and a set of stability analysis methods and calculation method for member effective length coefficient are founded completely.All these theories and methods are applied into the basketball center roof structural research and design,which is the first prestressing suspend dome in south China area,and achieving great economical effects.
出处
《钢结构》
2010年第3期28-32,36,共6页
Steel Construction
基金
国家自然科学基金资助项目(50248005)
国家自然科学基金资助项目(50578096)
深圳大学建筑设计研究院科学发展基金项目(2009001)
关键词
弦支穹顶
稳定性
非线性
初始缺陷
大学生运动会
篮球馆
计算长度系数
prestressing suspend dome
stability
nonlinear
initial defect
Universiade
basketball court
effective length coefficient
