L形圆钢管混凝土组合异形柱的数值分析研究

Numerical Analysis of L-shaped Special Concrete-Filled Steel Tube

在简单分析介绍L形圆钢管混凝土组合异形柱特点的基础上,以ANSYS有限元软件为平台,建立了L形圆钢管混凝组合异形长柱模型。由于实际工程中构件总是存在缺陷,引入缺陷后对L形圆钢管混凝土组合异形长柱进行轴心受压情况下的非线性屈曲分析,得到异形柱的轴压极限承载力和破坏形态。为适应建筑设计的需要,改变L形异形柱夹角后再进行非线性屈曲分析,分析夹角对极限承载力的影响,为建筑设计和结构设计提供参考。

Based on the simple analysis of the characteristics of the L-shaped Special Concrete-Filled Steel Tube,the ANSYS finite element software was used to build structural models.As the structural members have lots of defects in the actual engineerings,the defects are implanted to nonlinear buckling analysis of axial compression to obtain ultimate bearing capacity value and damaged form.In order to meet the needs of architectural design,the non-linear buckling analysis is carried out after changing the angle between L-shaped special-shaped columns,and the influence of the angle on the ultimate bearing capacity is analyzed,which provides a reference for architectural design and structural design.