支撑杆节点极限承载力有限元分析

The Finite Element Analysis of the Ultimate Bearing Capacity of Support Bar Node

本文应用有限元法,考虑材料非线性和几何非线性,分析了现代常用的天线载体支撑杆节点的应力和塑性区分布规律、节点变形等重要受力性能,提出了满足工程精度的节点承载力计算的简易等效方法和节点的加强措施,方便工程实际应用。

In this paper, finite element method considering material nonlinearity and the geometrical nonlinearity is used. The stress, the distributions of plastic zones, the deformation of nodes and the other important force performance of modern common antenna carrier strut bar node are analyzed. At last, we put forward strengthening measures of node and simple equivalent method which can meet the engineering accuracy to calculate capacity of the node .