Experimental on seismic performance of replaceable splicing steel beam-column joints with friction energy dissipation components

被引：0
|
作者：
Diao, Yan-Song [1 ]
Ren, Yi-Jian [1 ]
Yang, Yuan-Qiang [1 ]
Zhao, Ling-Yun [1 ]
Liu, Xiu-Li [1 ]
Liu, Yun [1 ]
机构：
[1] School of Civil Engineering, Qingdao University of Technology, Qingdao,266525, China
来源：
Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition) | 2024年 / 54卷 / 06期
关键词：
Based on the seismic design concept of recoverable function; a replaceable splicing steel beam-column joint with friction energy dissipation components is proposed in this paper. The joint uses both ductility and friction mechanisms for energy dissipation; which has the advantages of good ductility; controllable damage and replaceablility after damage. Two replaceable splicing steel beam-column joints specimen models and one cantilever bolted connection steel beam-column joint specimen model with the scale ratio of 1∶1.5 were designed and manufactured. The quasi-static test method was used to conduct experimental research on these joint specimens. Two replaceable splicing steel beam-column joints after failure were repaired; and then they were reloaded. The seismic performance indexes of the joint specimens under low cyclic loading; such as hysteresis curve; skeleton curve; stiffness degradation curve; strain and displacement curve; ductility and energy dissipation were obtained. The results show that the ductility and energy dissipation capacity of the proposed replaceable splicing steel beam-column joint are better than that of the cantilever bolted connection steel beam-column joint. The plastic damage is mainly concentrated in the replaceable components; and the main components of the replaceable splicing steel beam-column joints are basically maintained in the elastic working range. The repaired joints can almost completely restore the seismic performance and meet the requirements of replaceability. © 2024 Editorial Board of Jilin University. All rights reserved;
D O I：
10.13229/j.cnki.jdxbgxb.20220952
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页码：1643 / 1656
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