（1 山东建筑大学土木工程学院， 济南 250101； 2 浙江东南网架股份有限公司， 杭州 311209）

［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。

［关键词］索拱结构； 稳定性； 参数分析

中图分类号：TU393-3, TU311-41文献标识码：A文章编号：1002-848X(2017)01-0084-04

Parametric analysis on stability of one pretension type inner concave cable-arch structure with V shape web members

Wang Zhen1, Yang Dabin1,2, Zhou Guangen2, Guo Bing1

(1 School of Civil Engineering, Shandong Jianzhu University, Jinan  250101, China; 

2 Zhejiang Southeast Space Frame Co., Ltd., Hangzhou 311209, China)

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.

Keywords:cable-arch structure; stability; parametric analysis

*中国博士后科学基金（2014M551768），山东省墙材革新与建筑节能科研开发项目，山东建筑大学校内博士基金（XNBS1208）。

通讯作者：杨大彬，博士，副教授，Email：yangdabin@126.com。