圆形钢管弯扭构件承载力实用计算方法研究

利用通用有限元软件ABAQUS对圆形钢管弯扭构件的荷载-变形关系曲线进行了计算,将计算曲线与实验曲线进行了比较,基本吻合。在此基础上,考虑不同加载路径的影响,对圆形钢管弯扭构件的工作性能进行了分析,最后在参数分析结果的基础上,提出了圆形钢管弯扭构件承载力相关方程的实用计算方法。本文的研究成果可为相关研究提供参考。

Research on the Calculation Method of Bearing Capacity of Steel Tubular Members with Circular Sections Subjected to Bending and Torsion

The present study is an attempt to calculate the load-displacement curve of steel tubular members with circular sections subjected to bending and torsion by FEA package ABAQUS. A comparison of the calculated results shown good agreement with test results generally. Based on numerical results, considering different loading path, the behaviour of steel tubular members with circular sections subjected to bending and torsion was analysed. Finally, based on parametric studies, the formulae for calculating the ultimate strength of the members subjected to bending and tor- sion were presented. The research in this paper may be referred for correlative research.