钢结构悬臂式交通显示屏结构变形分析

DEFORMATION ANALYSIS OF TRAFFIC DISPLAY WITH STEEL CANTILEVER

采用SAP 2000和ABAQUS有限元分析软件建立结构简化模型,针对某钢结构悬臂式交通显示屏结构变形进行了力学和数值模拟分析。分析结果表明,钢结构悬臂式交通显示屏结构变形分析中应考虑由柱顶水平位移转角引起的梁端变形,特别是当柱子刚度较弱、变形较大时,应计入钢柱弯曲变形累加效应的不利影响;钢结构悬臂式交通显示屏结构设计中应适当增加柱子刚度,减小由柱顶水平位移转角引起的悬臂梁端挠度。

In order to study the deformation of a traffic display with steel cantilever,the structural simplification models,SAP 2000 and ABAQUS finite element softwares were used to conduct the stress analysis and numerical simulation analysis. The results showed that the beam-end deformation which was caused by horizontal displacement angle of column top should be considered in the deformation analysis. Especially, when the stiffness of column was weak and the deformation of column was large,the adverse effect of cumulative effect was produced by bending deformation of column should be taken into account. The stiffness of column should be considered in the design of traffic display with steel cantilever. The beam-end deflection caused by horizontal displacement angle of column top should be reduced.