蜂窝式钢构件轴心受压整体稳定计算  

Analysis on the Stability Sapacity of the Cellular Component Axially loaded

作　　者：贾连光[1] 蒋少军[1] 耿琳[1] 

机构地区：[1]沈阳建筑大学土木工程学院,辽宁沈阳110168

出　　处：《沈阳建筑大学学报（自然科学版）》2010年第4期638-643,共6页Journal of Shenyang Jianzhu University：Natural Science

基　　金：住房和城乡建设部科技攻关项目(2007-k2-14)

摘　　要：目的研究蜂窝构件稳定承载性能,为国家制定对蜂窝构件设计应用相关规范提供理论参考.方法以现有整体稳定计算理论为基础,结合蜂窝构件的受力机理和界面特性,对蜂窝构件轴心受压绕强轴整体稳定进行分析并采用基于试验的有限元分析方法进行数值分析加以验证.结果当有效截面积取毛截面时,三种开孔形式的蜂窝式轴压构件的临界力理论值与特征值屈曲分析得出的临界力的比较分析,误差均在5%以内,用换算长细比的方法来考虑蜂窝孔对构件剪切变形的影响是有效的.结论应用基于试验的方法建立有限元模型对蜂窝式构件轴心受压整体稳定的计算分析取得了良好的效果.The paper aims to research the stable load＇ bearing behavior of the cellular component. Based on the existing whole stable computation theory,combining the cellular component＇s stress mechanism and the contact surface characteristic, the whole stability of the cellular component under axial compression circling strong axis is analyzed and verified by numerical analysis with the method of finite element analysis based on experiments. When the effective gross section is cross sectional area, the force theoretical value and eigenvalue buckling of three holes form the cellular component of the critical axial are analysed and the comparative analysis of critical force can be obtained that the errors are less than 5 %. It is valid to consider the influence of hole on the shear deformation of components cellular with the equivalent slenderness approach. The computational analysis on the overall stability of axial compression of the cellular components obtain good effects with the finite element model based on test methods.

关 键 词：蜂窝构件 轴心受压 稳定 数值分析 

分 类 号：TU411[建筑科学—岩土工程]