CLC number: TU391
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2016-12-13
Cited: 2
Clicked: 5453
Zi-qin Jiang, Yan-lin Guo, Ai-lin Zhang, Chao Dou, Cai-xia Zhang. Experimental study of the pinned double rectangular tube assembled buckling-restrained brace[J]. Journal of Zhejiang University Science A, 2017, 18(1): 20-32.
@article{title="Experimental study of the pinned double rectangular tube assembled buckling-restrained brace",
author="Zi-qin Jiang, Yan-lin Guo, Ai-lin Zhang, Chao Dou, Cai-xia Zhang",
journal="Journal of Zhejiang University Science A",
volume="18",
number="1",
pages="20-32",
year="2017",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1600483"
}
%0 Journal Article
%T Experimental study of the pinned double rectangular tube assembled buckling-restrained brace
%A Zi-qin Jiang
%A Yan-lin Guo
%A Ai-lin Zhang
%A Chao Dou
%A Cai-xia Zhang
%J Journal of Zhejiang University SCIENCE A
%V 18
%N 1
%P 20-32
%@ 1673-565X
%D 2017
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1600483
TY - JOUR
T1 - Experimental study of the pinned double rectangular tube assembled buckling-restrained brace
A1 - Zi-qin Jiang
A1 - Yan-lin Guo
A1 - Ai-lin Zhang
A1 - Chao Dou
A1 - Cai-xia Zhang
J0 - Journal of Zhejiang University Science A
VL - 18
IS - 1
SP - 20
EP - 32
%@ 1673-565X
Y1 - 2017
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1600483
Abstract: In this study, seven pinned double-rectangular tube assembled buckling-restrained brace (DRT-ABRB) specimens were experimentally characterised by means of an axial cyclic test. The core member of the specimens was a single flat-plate. Two rectangular tubes were assembled using high strength bolts to form an external restraining member. Each rectangular tube was composed of an external steel channel and a cover plate. A gap or thin rubber filler was set between the core and the external restraining member to form an unbonded layer. The influence of several design parameters on the failure mode and energy dissipation capacity of the ABRB was investigated, including the height of the core wing plate, thickness of the external cover plate, and height of the external channel flange. This experimental study demonstrated that a local pressure-bearing failure at the end of the external member arises when the external cover plate is too thin or if the end construction detail is unreasonable. When the end rotations of the DRT-ABRB were restricted, the hysteretic performance was shown to be superior to that of a pure pinned DRT-ABRB. Finally, all the tested DRT-ABRBs exhibited excellent energy dissipation performance which amply satisfied existing regulation requirements.
Seven pinned DRT-ABRBs were studied in this paper using axial cycle tests to understand the influence of external cover plate thickness, core wing plate height, external channel flange height and other parameters on the failure mechanism and the energy dissipation performance of the BRBs. The rationality of the end construction details was verified and the DRTABRB energy dissipation performance was determined.
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