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应用有限元软件ABAQUS建立了7组圆钢管柱-H型钢梁外加强环式节点分析模型,建立了包含梁翼缘宽度和厚度、梁腹板厚度和高度、圆钢管柱壁厚、外环板宽度、轴压比等参数的节点承载力和刚度评价公式。利用OpenSees软件模拟一组试验试件,试验试件中的节点参数选用已有的承载力和刚度评价公式,通过分析结果与试验结果的对比,验证了节点评价公式的正确性以及节点建模的可行性,该方法可以应用到钢框架节点设计研究中。
The finite element software ABAQUS was used to establish the analysis model of seven groups of round steel tubular columns-H type steel girder plus a strong ring node. The model including the width and thickness of beam flange, the thickness and height of beam web, the wall thickness of circular steel column, , Axial compression ratio and other parameters of the node bearing capacity and stiffness evaluation formula. A set of experimental specimens were simulated by using OpenSees software. The existing parameters of bearing capacity and stiffness were selected for the parameters of joints in the test specimen. The correctness of the joint evaluation formulas and the comparison between the experimental results and the experimental results were verified. Feasibility, this method can be applied to the research of steel frame node design.