【摘要】：以某抗風(fēng)索直線型張弦梁屋蓋結(jié)構(gòu)為工程背景,綜合運(yùn)用病害調(diào)查、概念判斷和有限元分析相結(jié)合的研究手段,開展屋蓋支座受損原因分析。采用商業(yè)軟件ANSYS建立屋蓋結(jié)構(gòu)的兩種整體有限元模型,分別開展施工合龍溫度(20℃)、夏季高溫(37℃)、冬季寒冷(-10℃)三種溫度工況下的受力性能分析,定量揭示溫度變化作用下支座水平反力和水平變形量的變化范圍。研究表明,支座受損的主要原因是由于張弦梁兩端均直接與預(yù)埋件焊接,限制了屋蓋體系的水平變形能力,溫度變化導(dǎo)致巨大的水平力作用所致。研究結(jié)論可為采取處理措施提供理論依據(jù),也可為后續(xù)同類工程設(shè)計(jì)、建造提供建議。
[Abstract]:Taking a wind cable linear beam string roof structure as the engineering background, the damage cause analysis of roof support is carried out by means of the combination of disease investigation, concept judgment and finite element analysis. Two integral finite element models of roof structure were established by commercial software ANSYS. The mechanical properties of roof structure were analyzed under three different temperature conditions: construction closure temperature (20 鈩，

本文編號(hào)：2232532