Fan-shaped steel limiting progressive collapse prevention assembly type high-strength bolt connection beam-column joint

The invention relates to a fan-shaped steel limiting progressive collapse prevention assembly type high-strength bolt connection beam-column joint. According to the design, three sets of special steel threaded sleeves are pre-buried at the joint and connected through high-strength bolts, and angle steel is arranged at the top of the joint so as to improve the overall strength and stability of components. And meanwhile, a fan-shaped limiting device is arranged at the bottom of the joint to prevent the secondary resistance effect of the structure in the later anti-collapse stage, and when the bearing limit stress is borne, the fabricated beam-column joint will be unstable slowly, so that the phenomena of sudden damage and progressive collapse are avoided. The device has the advantages of being simple in structure, high in stability and good in progressive collapse prevention capacity. 本发明涉及一种扇形钢限位防连续倒塌装配式高强螺栓连接梁柱节点。该设计通过在节点处预埋三组特殊的钢螺纹套筒，并通过高强螺栓进行连接，节点顶部设置角钢以提高构件的整体强度和稳定性。同时，节点底部设置扇形限位装置以防止结构后期抗倒塌阶段的二次抗力效应，在承载极限