【摘要】 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。更多还原

【Abstract】 Based on the aseismic appraisal of a R/C multi-story framed building, three typical two-thirds scale beam-column joints with no stirrups were tested.Collapse mechanism, strength and deformation under reversed lateral loading were observed during the tests. After failure, the specimens were strengthened by steel angles and flat-hoops and tested again to make comparison, so as to know the improvement of strength and deformation ability.更多还原