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通过对K型高强组合钢偏心支撑的有限元分析,得出结构的滞回曲线,从而得到结构的骨架曲线,以及退化刚度,最后给出结构的恢复力模型.最后,进行了骨架曲线模型和有限元分析得到的骨架曲线的对比,并且通过另外两种不同强度钢材组合的偏心支撑支撑对此恢复力模型进行了验证,结果表明,得到的恢复力模型可以良好的表达K型高强组合钢偏心支撑的初始刚度,各个阶段的刚度退化等特征.
Through the finite element analysis of the eccentric support of the K-type high-strength composite steel, the hysteresis curve of the structure is obtained, and the skeleton curve of the structure and the degenerative stiffness are obtained. Finally, the restoring force model of the structure is given.Finally, The results show that the obtained restoring force model can well express the eccentricity of the K-type high-strength composite steel. The results show that the restoring force model of the K- The initial stiffness of the support, the stiffness degradation of each stage and other characteristics.