根据两幢多层钢筋混凝土框架结构的抗震鉴定结果,选取了三个无箍筋梁柱节点组合件,对其2/3比例的模型进行了在低周反复荷载作用下的试验研究。观察其破坏机制、强度和变形方面的性能。同时,对其破坏后的试件采用角钢和扁钢加固后,进行了对比试验,以确定节点加固后的效果。 According to the seismic appraisal results of two multi-story reinforced concrete frame structures, three no-stiffener beam-column joint assemblies were selected, and the 2/3 ratio model was tested under low-cycle reversed loading. Observe its destruction mechanism, strength and deformation properties. At the same time, after the damaged specimen was reinforced with angle steel and flat steel, a comparative test was conducted to determine the effect of the reinforcement of the node.