新型钢管混凝土柱钢牛腿与RC梁纵筋机械锚固式连接节点设计与试验研究

Design and Experimental Study on the New Type Mechanical Anchoring Type Connection Nodes of Steel Bracket and RC Beam Longitudinal Reinforcement of Steel Pipe Concrete Column

本文提出了新型钢管混凝土柱钢牛腿与RC梁纵筋机械锚固式连接节点,并与几种常规的连接形式进行了模型静载试验对比。文中介绍了试验方案的设计、试件的制作、加荷方式、试件的裂缝发展情况及破坏形态等试验结果,试验结果表明,新型连接节点剪力、弯矩传递机理合理,施工方便,并已成功应用于赫基国际大厦实际工程中。

This paper presents a new type mechanical anchoring type connection nodes of steel pipe concrete column steel bracket and RC beam longitudinal reinforcement,and compared with several conventional forms of connection model of static load test. This paper introduces the test scheme design,the production of specimens,loading method,the crack development and failure pattern of test specimens.The test results show that the new connection node shear force and bending moment transfer mechanism is reasonable,construction is convenient. The new node has been successfully applied to Heji International Building in practical engineering.