半刚接钢框架的有限元分析及性能探讨

Finite Element Analysis and Behavior of Semi-rigid Steel Frames

本文对半刚接钢框架的有限元法做了分析，在单元刚度矩阵中考虑了节点柔性和几何非线性的影响，并对固端力做了修正。最后编制程序用增量迭代法对有侧向和竖向荷载作用的半刚接钢框架做了分析，初步探讨了半刚接钢框架的性能。

This paper presents a finite element method for calculating semi-rigid steel frames. The effects of connection flex-ibility and geometric nonlinearity have been considered in the element stiffness matrixes with fixed-end forces modified. A program for calculating semi-frame with incremental-iterative method has been compiled, and some semi-rigid frames with horizontal and vertical loads have been investigated. Through comparing and analyzing, some conclusions about the behavior of semi-rigid steel frames are drawn at the end of the paper.