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利用有限元程序ABAQUS分析了薄腹钢梁在纯剪作用下的反应,定量分析了初始挠度和腹板高厚比对薄腹梁受剪性能的影响。通过研究薄腹梁的全过程位移与荷载关系,明确了弹性剪切屈曲理论和后屈曲理论的适用范围。在此基础上,提出了相应的设计建议,供实际应用及进一步的研究参考。
The finite element program ABAQUS was used to analyze the response of thin web beams subjected to pure shear. The influence of initial deflection and web ratio on the shear behavior of thin webs was analyzed quantitatively. By studying the relationship between displacement and load during the whole process of thin web, the applicable range of the theory of elastic buckling and post-buckling is defined. On this basis, the corresponding design proposals are put forward for practical application and further research reference.