摘要
采用通用有限元分析软件ANSYS,对角钢塔中不同布置方式的斜材进行有限元分析,使用壳单元建立4种斜材布置方式的有限元模型,考虑节点板厚度的影响,经过非线性屈曲分析得到各构件的极限承载力。通过对4种布置方式下构件极限承载力的比较发现,斜材布置方式对构件的极限承载力有较大影响,采用现行规范计算得到的构件承载力有时会过于保守。
It was made the finite element analysis of the angle member which is in different arrangements of lattice angle tower based on the general finite element analysis software ANSYS. The shell element was used to set up finite element models of four kinds of angle member arrangements and taking account of the influence of the node plate thickness, and the ultimate bearing capacity of the angle member was got through the nonlinear buckling analysis. By comparison of the ultimate bearing capacity of four angle member arrangements, it was found that the angle member arrangements have obvious influence on the ultimate bearing capacity, and sometimes it is much smaller by using the current specification for the calculation of bearing capacity of the angle member.
出处
《钢结构》
2013年第8期35-39,共5页
Steel Construction
关键词
角钢塔
斜材布置方式
非线性屈曲分析
极限承载力
lattice angle tower
angle member arrangement
nonlinear buckling analysis
ultimate bearing capacity
