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为考察K型方钢管节点主管中填充混凝土对节点抗震性能的影响,对1个K型方钢管节点(空管节点)以及1个节点主管中填充混凝土的K型方钢管混凝土节点进行低周反复荷载试验,根据试验数据,对节点的破坏模式、滞回性能、承载力、延性、刚度和耗能能力进行对比分析。结果表明:K型方钢管节点主管中填充混凝土后,提高了节点的承载力、延性、刚度,但却降低了节点的耗能能力。
In order to investigate the effect of filled concrete on the seismic performance of joints of K-shaped square steel pipe joints, a K-square steel pipe concrete node filled with concrete in one K-square steel pipe node (ATC node) According to the test data, the failure mode, hysteretic behavior, bearing capacity, ductility, stiffness and energy dissipation capacity of the joints were analyzed. The results show that the load-bearing capacity, ductility and stiffness of the joints are increased when the concrete filled in the main section of K-square steel pipe joints, but the energy consumption capacity of the joints is reduced.