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通过对粘钢加固钢筋混凝土框架中节点抗震性能的计算机简化模拟,探讨了节点的受力机理,提出了节点区混凝土在受约束条件下的本构关系及粘钢的受力特点,得到了粘钢加固节点可采用斜压杆模型的结论,给出了等效斜压杆的宽度公式,同时,指出试件的层间位移是柱头荷载引起的柱顶位移和节点剪切变形引起的柱顶位移之和,进而给出了计算位移的公式.最后利用VB语言进行全过程模拟,从而大大简化了数据结果到图形结果的转化过程.
Through the simplified computer simulation of the seismic performance of joints in reinforced concrete frames with bonded steel plates, the force mechanism of the joints is discussed. The constitutive relationship of the concrete in the joint area under the constrained conditions and the stress characteristics of the bonded steel are proposed. The steel reinforcement node can adopt the diagonal bar model, and the width formula of the equivalent diagonal bar is given. At the same time, it is pointed out that the inter-story displacement of the sample is the column top caused by the column head load and the shear deformation of the joint. The sum of the displacements gives the formula for calculating the displacement. Finally, using VB language to simulate the whole process, which greatly simplifies the conversion process from data results to graphical results.