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（1 山東建筑大學(xué)土木工程學(xué)院， 濟(jì)南 250101； 2 浙江東南網(wǎng)架股份有限公司， 杭州 311209）
［摘要］穩(wěn)定承載力是索拱結(jié)構(gòu)分析和設(shè)計(jì)的主要內(nèi)容之一。為了得到一次張拉V形腹桿內(nèi)凹式索拱結(jié)構(gòu)各主要參數(shù)對其穩(wěn)定承載力的影響規(guī)律，利用ANSYS建立了索拱結(jié)構(gòu)的有限元模型,采用考慮初始幾何缺陷和雙重非線性的全過程分析方法對其進(jìn)行了靜力穩(wěn)定性參數(shù)分析。得到了支座水平剛度、腹桿數(shù)量、矢跨比、拱截面、索截面、腹桿截面和拉索初始預(yù)應(yīng)力對該索拱結(jié)構(gòu)靜力穩(wěn)定承載力的影響規(guī)律，可為該種類型索拱結(jié)構(gòu)的工程設(shè)計(jì)提供參考。
［關(guān)鍵詞］索拱結(jié)構(gòu)； 穩(wěn)定性； 參數(shù)分析
中圖分類號：TU393-3, TU311-41文獻(xiàn)標(biāo)識碼：A文章編號：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
*中國博士后科學(xué)基金（2014M551768），山東省墻材革新與建筑節(jié)能科研開發(fā)項(xiàng)目，山東建筑大學(xué)校內(nèi)博士基金（XNBS1208）。
通訊作者：楊大彬，博士，副教授，Email：yangdabin@126.com。
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