索网结构玻璃幕墙预应力对刚架边柱承载性能的影响  

Influence Analysis of Cable-Nets Structure′s Prestress in Glass Curtain Wall on Bearing Property of Side Frame Column

作　　者：丁大益[1,2] 王元清[3] 舒畅[3] 石永久[3] 牛忠荣[1] 

机构地区：[1]合肥工业大学土木与水利工程学院,安徽合肥230009 [2]五洲工程设计研究院,北京100053 [3]清华大学土木工程安全与耐久教育部重点实验室,北京100084

出　　处：《沈阳建筑大学学报（自然科学版）》2012年第1期44-50,共7页Journal of Shenyang Jianzhu University：Natural Science

基　　金：国家自然科学基金项目(51038006);KGE研究基金项目(200803)

摘　　要：目的对实际工程中的双向压弯构件,进行承载性能及屈曲分析,为工程设计提供参考.方法采用ANSYS软件对合肥新桥国际机场3区航站楼边柱进行特征值和非线性屈曲分析,同时在不同工况下对整体模型和单榀模型中的边柱进行计算对比,提取最不利内力组合,复核边柱的实际承载性能.结果在最不利工况下,整体模型和单榀模型中的边柱内力值最大相差16.6%,按钢结构设计规范(GB50017-2003)相关公式计算,均能符合要求,屈曲分析中荷载稳定系数6.0左右.结论边柱设计符合相关规范的要求,并得到有限元模型计算结果的验证,文中提及的计算分析方法也可为同类工程提供参考.The bearing property of biaxial bended columns needed to be analysed in practical engineering projects, which may provide guidances for the design. Characteristic value buckling and nonlinear buckling on the side column of Hefei Xinqiao international airport 3 section terminal were analysed by ANSYS software. What＇s more ,the whole structure model and single rigid frame model were respectively calculated and compared with each other in different conditions, and then the most unfavorable internal force combination was extracted for the calculation. Furthermore, the actual bearing property of the side column was checked. In the most unfavorable conditions, the difference between the maximum internal force of side column calculated in the whole structure model with that calculated in the single rigid frame model was less than 16. 6%, which all meeted to the requirement of the related formula of the code for design of steel structures （GB50017-2003）, and the load stability coefficient for the buckling analysis was about 6. 0. The design of side column conformed to the requirements of the relevant specification, and got verification of the calculation results of the finite element model. Moreover, calculation and analysis methods proposed in the paper could also become the reference to similar projects.

关 键 词：索网结构 玻璃幕墙 刚架边柱 双向压弯 承载性能 屈曲分析 

分 类 号：TU391[建筑科学—结构工程]