不锈钢芯板结构T形柱轴压性能有限元分析  

FINITE ELEMENT ANALYSIS OF AXIAL COMPRESSION PERFORMANCE OF T-SHAPED COLUMN MADE OF STAINLESS STEEL SANDWICH PANEL WITH CORE TUBES

作　　者：曾令宏[1] 方照野 舒兴平[1] ZENG Linghong;FANG Zhaoye;SHU Xingping(College of Civil Engineering,Hunan University,Changsha 410082,China)

机构地区：[1]湖南大学土木工程学院,长沙410082

出　　处：《工业建筑》2020年第2期45-50,共6页Industrial Construction

基　　金：国家自然科学基金项目(51778219)。

摘　　要：为探究不锈钢芯板结构作为柱或梁的可行性,研究肢长、面板厚度和芯管壁厚对不锈钢芯板T形柱在轴压作用下稳定性的影响,结合已经完成的不锈钢芯板结构侧压试验,通过有限元计算软件ABAQUS对不锈钢芯板T形柱的轴压性能进行特征值屈曲分析和非线性屈曲分析。研究表明:T形柱的屈曲模式表现为面板局部屈曲;肢长对稳定承载力有很大影响;随着面板厚度的增大,芯管对面板的约束越来越弱,对其稳定承载力的贡献越来越小;芯管能给面板提供支撑,但芯管壁厚到达一定程度后,厚度的增加对稳定承载力的提升作用不大。In order to study the effect of sectional height and thickness of column leg for the stainless steel panel with core tubes and the wall thickness of core tube on the T-shaped column under axial compression,combined with the lateral compression performances measured by test,the T-shaped column was analyzed by the finite element analysis software ABAQUS,and the nonlinear buckling was analyzed. The results showed that the buckling mode of the Tshaped column was local buckling of the panel. The length of legs had great influence on the stable bearing capacity.With the increase of thickness of panel,the constraint of core tubes was weaker and weaker,and the contribution to the panel stability was less and less. The core tube could provide support to the panel,but the tubular wall thickness did not play a significant role in the improvement of the stability when the thickness of column leg reached a certain extent.

关 键 词：不锈钢芯板结构 T形柱 非线性屈曲分析 轴心受压 

分 类 号：TU392.4[建筑科学—结构工程]