箱梁弯扭、翘曲、畸变、剪滞的综合分析

A Comprehensive Analysis:Box Beam's Bend,Torsion,Warp,distortion and shear Lag

提供了一种可以全面分析箱梁弯曲、扭转、翘曲、畸变、剪力滞后的有限梁法 ,并从理论上分析了剪力滞后效应 .通过考题可以验证本方法的正确性 ,而且其计算数据准备简单 ,计算量小 .

In this article,a thin walled box beam finite element is provided,which can model, besides the six nodal degrees of freedom of a conventional beam element,extension,flexure,torsion,torsion warp,disortion and distortion warp.The shear lag is theoretically analyzed.from some examples,it finds out the method is accurate to analyze the deformation and stress of box beam.At the same time,the data preparation is easy and the computing consumption is little.