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对3个穿芯螺栓-端板连接节点试件进行了伪静力试验研究,研究了轴压比分别为0.20、0.25、0.30时节点的滞回性能、强度及刚度退化、延性性能、耗能性能及破坏特征.试验结果表明,试件的层间位移延性系数为2.38~2.45,弹性及弹塑性层间位移角分别为0.0140~0.0158 rad、0.341~0.0377 rad,能量耗散系数为2.567~3.820.节点试件均为梁端形成塑性铰而破坏,节点具有很好的强度、刚度、延性及耗能能力,满足现行抗震规范GB50011-2001的要求.提出了相关的设计及研究建议.
Pseudo-static tests were carried out on the specimens of three core-penetrating bolting-end plate joints. The hysteretic behavior, strength and stiffness degradation, ductility and energy dissipation of the joints at axial pressure ratios of 0.20, 0.25 and 0.30 were studied respectively. The results show that the ductility coefficient of interlayer displacement is 2.38-2.45 and the displacement angles between elastic and elastoplastic layers are 0.0140-0.0158 rad and 0.341-0.0377 rad respectively and the energy dissipation coefficient is 2.567-3.820 The specimens of the joints are damaged by the formation of plastic hinges on the beam ends, and the joints have good strength, stiffness, ductility and energy dissipation capability, meeting the requirements of the current seismic code GB50011-2001, and the relevant design and research proposals are put forward.