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采用有限元方法对3个混合结构T形新型墙梁半刚接耗能节点的构造及受力性能进行了分析,并与试验结果进行了比较。揭示了新型全栓接半刚性节点弯矩-转角关系、承载力、延性、耗能能力等力学性能。分析结果表明:通过合理选择有限元分析数值模型,可较好地预测该新型节点的受力性能,为今后进行数值、试验和分析影响因素奠定了基础;通过拆换该节点的顶、底角钢来满足“中震可修”的抗震性能目标;解决了墙梁刚性节点施工中的困难,完全避免了现场焊接,具有低碳和环保的优点。
The finite element method was used to analyze the structure and force-bearing capacity of three T-shaped T-shaped beams with a semi-rigid connection. The results were compared with the experimental results. The bending moment-rotation relationship, bearing capacity, ductility, energy dissipation and other mechanical properties of the new type full bolted joint are revealed. The analysis results show that: By reasonably choosing the numerical model of finite element analysis, the mechanical performance of the new type of joint can be predicted well, which lays the foundation for numerical, experimental and analysis of the influencing factors in the future. To meet the “earthquake can be repaired” seismic goal; Solve the rigid beam wall node construction difficulties, completely avoiding the welding site, with low carbon and environmental advantages.