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为了研究一端固接一端自由的六边形孔蜂窝钢柱在轴心力作用下的力学性能,应用大型有限元分析软件ANSYS建立数值模型,分别从扩张比的变化、长度变化和第1个开孔处距柱底的距离变化研究其对蜂窝钢柱受力性能的影响,同时对比了六边形孔蜂窝钢柱与原截面实腹式钢柱承载力的差别。通过数值模拟发现六边形孔蜂窝钢柱的破坏形式并非局部屈曲或整体屈曲,而是两者相关屈曲,在分析基础上给出了不同参数的较优取值。
In order to study the mechanical properties of a hexagonal hole honeycomb steel column with one end fixed at one end under the action of axial force, a large-scale finite element analysis software ANSYS was used to establish the numerical model. From the change of expansion ratio, the change of length and the first Hole distance from the bottom of the column to investigate the mechanical properties of honeycomb steel columns, and compared the hexagonal hole honeycomb steel column and the original section of the real steel column bearing capacity difference. Through numerical simulation, it is found that the failure mode of hexagonal hole honeycomb steel column is not partial buckling or total buckling, but the buckling of the two. Based on the analysis, the optimal values of different parameters are given.