新型钢筋套筒挤压连接预制RC梁柱节点研究  

Research on New Type of Precast Beam-column Joints with Pressed Sleeve Splicing

作　　者：朱东烽 潘忠尧 陈庆军[2,3] 陈祺荣 蔡健[2,3] 解金辉 Zhu Dongfeng;Pan Zhongyao;Chen Qingjun;Chen Qirong;Cai Jian;Xie Jinhui(Guangdong Jinghong Construction Co., Ltd. YunfU 527400,China;、 School of Civil and Transportation Engineering,South China University of Technology Guangzhou 510641,China;、 State Key Laboratory of Subtropical Building Science Guangzhou 510641,China)

机构地区：[1]广东精宏建设有限公司,广东云浮527400 [2]华南理工大学土木与交通学院,广州510641 [3]亚热带建筑科学国家重点实验室,广州510641

出　　处：《广东土木与建筑》2018年第3期65-70,共6页Guangdong Architecture Civil Engineering

摘　　要：对一种新型钢筋套筒挤压连接预制梁柱节点进行试验研究,并进行了梁纵筋配筋率、轴压比、柱纵筋配筋率等有限元参数分析,并与试验节点的结果进行了对比。研究表明:这种新型节点形式是安全的,可以实现强节点弱构件的目的,并能实现较好的节点抗震性能,该类型预制梁柱节点是切实可行的。有限元分析结果与试验得到的骨架曲线吻合较好;随着梁纵筋配筋率提高,节点承载力增加;轴压比和柱纵筋配筋率对节点承载力影响较小;随着柱端轴压比的增加,节点剪切角逐渐减小;柱纵筋配筋率对节点剪应力影响较小。The experimental study on a new type of precast beam-column joints with pressed sleeve splicing were carried out. The finite element analysis concerning the parameters of beam longitudinal reinforcement ratio axial compression ratio and column longitudinal reinforcement ratio were analyzed and studied. The results are compared with the results of the test specimen. The results show this new type of joint is safe,which can achieve the purpose of ＂strong joints and weak members＂,and can achieve better seismic performance of joints. This type of refabricated beam column joints is feasible. The results of finite element analysis were in good agreement with the experimental skeleton curves.With the increase of the reinforcement ratio of longitudinal reinforcement,the bearing capacity of the joint increases. Axial compression ratio and column reinforcement ratio have little effect on the bearing capacity of joints. With the increase of axial compression ratio at the end of the column,the shear angle of the joint decreases gradually. The reinforcement ratio of column longitudinal reinforcement has little effect on the joint shear stress.

关 键 词：钢筋套筒挤压连接 预制梁柱节点 节点承载力 节点剪切角 

分 类 号：TU398[建筑科学—结构工程]