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借助ANSYS有限元分析软件,对5个“梁贯通”式RCS梁柱中节点进行三维非线性有限元分析,并和试验结果相比较。分析中考虑材料非线性以及混凝土的开裂与压碎。对单元类型的选取、钢和混凝土材料模型的定义、整体有限元模型的建立、施加荷载、设置求解选项并求解等数值模拟技术进行了深入的研究。研究表明,通过合理设置参数,ANSYS有限元软件能够模拟RCS梁柱节点在静力荷载作用下的性能,并和试验结果吻合较好。
By means of ANSYS finite element analysis software, the three-dimensional nonlinear finite element analysis of the five “RC beam” columns with RC beams is carried out and compared with the experimental results. The material considered is nonlinear in the analysis as well as cracking and crushing of the concrete. The research on the selection of element type, the definition of steel and concrete material model, the establishment of the overall finite element model, the application of load, the setting of solution options and the solution of numerical simulations are carried out. The research shows that by reasonably setting the parameters, ANSYS finite element software can simulate the RCS beam-column joints under the static load, which is in good agreement with the experimental results.