Experimental Studies on Mechanical Properties of Fabricated Beam-Column Connection with Inner Sleeve Composite Bolts

被引：0
|
作者：
Ma Q. [1 ]
Wang Y. [1 ]
Yang S. [1 ]
机构：
[1] School of Civil Engineering, Qingdao Technological University, Qingdao
来源：
Tianjin Daxue Xuebao (Ziran Kexue yu Gongcheng Jishu Ban)/Journal of Tianjin University Science and Technology | 2017年 / 50卷
关键词：
Beam-column connection; Fabricated steel structure; High-strength bolt; Inner sleeve; Through high-strength bolt;
D O I：
10.11784/tdxbz201704072
中图分类号：
学科分类号：
摘要：
In order to reveal the mechanical properties of fabricated beam-column connection with inner sleeve composite bolts, experimental studies on three cross-shaped specimens with size proportion of 1/2 under low cycle reciprocating load was done, and the joint failure pattern, hysteresis property, stiffness degradation, the shearing angle curve of joint core and moment-rotation curves of connection were analyzed. The results show the failure pattern of the joint can be summarized into snap of high-strength bolt, buckling of extended end-plate and column wall, and fracture of welds of column under low cycle reciprocating load. The plastic deformation caused by slip of through high-strength bolt in the upper column concentrates on column wall and extended end-plate area and plastic hinge was formed, and the joint has well energy dissipation ability. Influenced by the through high-strength bolt which passed though the column wall, "symmetric concave bend" of the upper column wall arised under reciprocating load. With the increase of the inner sleeve thickness, shear deformation of joint core is reduced, and the shear stiffness increases. The joint has a certain rotational stiffness and shows the nature of the semi-rigid joints. The properties of proposed fabricated beam-column connection with inner sleeve composite bolts can be used into totally fabricated connection of the upper and lower column, beam and column. © 2017, Editorial Board of Journal of Tianjin University(Science and Technology). All right reserved.
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页码：131 / 139
页数：8
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