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半刚性节点钢框架内填钢筋混凝土剪力墙(SRCW)结构融合了钢框架和钢筋混凝土剪力墙两种结构的优点,是一种极具应用前景的新型抗震结构体系。目前,SRCW结构的有限元分析多局限于线弹性阶段。为了系统地研究该结构的滞回性能和传力机理,采用ANSYS软件建立非线性有限元模型的基本过程和方法,在验证有限元模型的基础上,从整体性能、传力机理、延性、耗能等方面进行分析评价。结果表明:SRCW结构具有较高的侧向承载力和强度储备;在循环荷载作用下,结构表现出良好的延性和耗能能力;钢框架承担80%~100%的倾覆弯矩,剪力墙承担80%~90%的侧向力。最后提出了抗震设计建议。
Reinforced concrete shear wall (SRCW) structure of steel frame with semi-rigid node steel frame combines the advantages of two structures of steel frame and reinforced concrete shear wall, which is a new seismic structure system with great application prospect. At present, the finite element analysis of SRCW structure is mostly limited to the linear elastic phase. In order to systematically study the hysteretic behavior and force transmission mechanism of the structure, the basic process and method of establishing the nonlinear finite element model by using ANSYS software are verified. Based on the verification of the finite element model, the overall performance, force transmission mechanism, ductility, Can be other aspects of analysis and evaluation. The results show that the SRCW structure has high lateral bearing capacity and strength reserve. Under cyclic loading, the structure shows good ductility and energy dissipation capacity. The steel frame takes 80% -100% of the overturning moment and the shear wall Bear 80% ~ 90% of the lateral force. Finally, proposed seismic design recommendations.