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本文对板采用四结点分层板弯曲单元,对柱采用八结点六面体等参单元,建立了钢筋混凝土板柱节点有限元非线性计算模型,编制了反复荷载下钢筋混凝土非线性有限元计算程序。文中介绍了作者进行的板柱节点在反复荷载作用下的试验结果,用试验数据验证了所建立的有限元程序的可靠性。文中对板柱中节点和边节点在竖向剪力和低周反复水平荷载共同作用下的受力性能进行了全过程计算分析。
In this paper, a four-noded hierarchical plate bending element is used for the plate, and an eight-node hexahedron isoparametric element is used for the column. A nonlinear finite element calculation model for the reinforced concrete slab-column node is established. The nonlinear finite element calculation of the reinforced concrete under cyclic loading is developed. program. In this paper, the experimental results of the column joints under the repeated load are introduced. The reliability of the established finite element program is verified by experimental data. In this paper, the whole process of the mechanical performance of the joints and edge nodes in the slab column under the combined effect of vertical shear force and low cyclic repeated horizontal load is analyzed.