【摘要】 稳定承载力是索拱结构分析和设计的主要内容之一。为了得到一次张拉V形腹杆内凹式索拱结构各主要参数对其稳定承载力的影响规律,利用ANSYS建立了索拱结构的有限元模型,采用考虑初始几何缺陷和双重非线性的全过程分析方法对其进行了静力稳定性参数分析。得到了支座水平刚度、腹杆数量、矢跨比、拱截面、索截面、腹杆截面和拉索初始预应力对该索拱结构静力稳定承载力的影响规律,可为该种类型索拱结构的工程设计提供参考。更多还原

【Abstract】 Stability capacity is one of the main contents in the analysis and design of cable-arch structure. In order to get the influence law of key parameters on the stability capacity of one pretension type inner concave cable-arch structure with V shape web members,finite element models of cable-arch structures were created with ANSYS,and the static stability parametric analysis was performed by whole process analysis method with initial geometry imperfections and double nonlinear effects considered. The influence of horizontal support stiffness,web member number,rise-height ratio,arch section,cable section,web member section and cable pretension on stability capacity of the cable-arch structure were obtained,which can provide reference forengineering design of the cable-arch structure.更多还原