张弦拱结构的结构分析与其静力性能研究  

Structural analysis and static behaviour of arch string structures

作　　者：赵基达[1] 曾毅恒[1] 

机构地区：[1]中国建筑科学研究院,北京100013

出　　处：《空间结构》2010年第3期3-8,共6页Spatial Structures

摘　　要：对张弦拱结构的受力性能与分析方法进行了系统的研究.根据张弦拱结构的自平衡特点,建立索与拱的变形协调方程,给出了张弦拱结构的平衡微分方程,并设定位移函数,用伽辽金法进行求解,以求得张弦拱结构的内力与位移.这一连续化理论计算方法与非线性有限元分析方法、模型试验结果都进行了分析比较,证明本理论方法计算方便、直观精确,可用于张弦拱结构的分析与计算.根据理论公式,对张弦拱结构的静力性能进行了讨论,包括结构的线性性能、拱的弯曲刚度贡献、结构挠度与支座的水平位移、预应力过程等方面,对张弦拱结构的研究与设计有较好的指导意义.Static characteristics and analysis method of arch string structures（ASS） are studied systematically.According to the self-balanced essential of arch string structures,the compatibility formula of deformation is derived for the arch and the suspend cable,and the equilibrium differential equation is derived.After the assumption function of deformation is set up,the equation is solved by Galerkin method,and the internal force and deformation obtained.The result of the present method has been compared with the results of the FEM method and the model test.It is proved that the present method is convenient and intuitive with good precise,and can be applied for the analysis of practical arch string structures.This paper discusses several aspects： the linearity behavior of arch string structure,the effect caused by the bending rigidity of arch,the deformation and the horizontal movement at the support end and the prestress process.

关 键 词：张弦拱 计算公式 静力特性 伽辽金法 

分 类 号：TU393.3[建筑科学—结构工程]