Experimental Study on Seismic Performance of Bottom-Flange-Bolted and Top-Flange-Welded Prefabricated CFST Column to Steel Beam Joints

被引：0
|
作者：
Rong X. [1 ]
Chen L. [1 ,2 ]
Zhang J.-X. [1 ]
机构：
[1] School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin
[2] Tongyuan Design Group Co., Ltd., Jinan
来源：
Dongbei Daxue Xuebao/Journal of Northeastern University | 2020年 / 41卷 / 09期
关键词：
Bottom-flange-bolted and top-flange-welded; Column to steel beam joint; Prefabricated; Seismic performance; Square concrete-filled steel tube;
D O I：
10.12068/j.issn.1005-3026.2020.09.022
中图分类号：
学科分类号：
摘要：
In order to solve the problem of the influence of the joint on the overall seismic performance of the prefabricated concrete-filled steel tube (CFST) structure, this paper proposed a new type of the bottom-flange-bolted and top-flange-welded prefabricated CFST column and steel beam joints. To study its seismic performance, three bottom-flange-bolted and top-flange-welded joints and one full bolt joint were designed and tested. The results show that the failure modes of the three bottom-flange-bolted and top-flange-welded joints are mainly caused by the buckling of the beam end and the ductile fracture of the steel beam flange, the hysteretic curve of the joint is full, the energy dissipation capacity, stiffness degradation capacity and bearing capacity degradation capacity are good, and showing the seismic performance is close to that of the full bolt joint. Compared with JD1, the peak load, stiffness and energy dissipation capacity of JD3 are significantly improved with the increase of the beam section size, and the seismic performance of the joint is not significantly changed with an increase in the thickness of the plate. © 2020, Editorial Department of Journal of Northeastern University. All right reserved.
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页码：1348 / 1355
页数：7
相关论文
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