Design Parameters and Seismic Performance Analysis of Double-Yield Buckling-Restrained Braces

WANG Tao; PAN Yutong; MENG Liyan; LIU Jisheng; QI Xingjun; XU Guoshan

doi:10.3724/j.gyjzG22102904

Volume 55 Issue 5

May 2025

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WANG Tao, PAN Yutong, MENG Liyan, LIU Jisheng, QI Xingjun, XU Guoshan. Design Parameters and Seismic Performance Analysis of Double-Yield Buckling-Restrained Braces[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(5): 76-85. doi: 10.3724/j.gyjzG22102904

Citation:

WANG Tao, PAN Yutong, MENG Liyan, LIU Jisheng, QI Xingjun, XU Guoshan. Design Parameters and Seismic Performance Analysis of Double-Yield Buckling-Restrained Braces[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(5): 76-85. doi: 10.3724/j.gyjzG22102904

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Design Parameters and Seismic Performance Analysis of Double-Yield Buckling-Restrained Braces

doi: 10.3724/j.gyjzG22102904

1. School of Architecture and Civil Engineering, Heilongjiang University of Science and Technology, Harbin 150022, China;
2. Heilongjiang Rijiasheng Technol Co., Ltd., Harbin 150016, China;
3. School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China

Received Date: 2022-10-29
Available Online: 2025-07-15

Abstract

Abstract

In order to solve the problem that traditional buckling-restrained braces do not dissipate energy under minor earthquakes， a novel double-yield buckling-restrained brace （DYBRB） with two-stage energy dissipation capability has been proposed. The brace yields energy dissipation and provides stiffness for the structure under minor earthquakes， while demonstrating better energy dissipation capacity under moderate to strong earthquakes. By analyzing the structural characteristics of the DYBRB， the working mechanism of this brace was obtained， the theoretical formulas for the double-yield displacement ratio and the yield bearing capacity ratio of the brace were deduced， and the main parameters affecting its design were identified.The DYBRB numerical model was established by ABAQUS， and its seismic performance was verified from three aspects： energy dissipation capacity， bearing capacity unbalance characteristics， and plastic deformation capacity. The research results showed that the DYBRB's hysteresis curve was stable，full， and symmetrical in tension and compression.The DYBRB exhibited good double-yield energy dissipation characteristics and plastic deformation capacity， enabling multi-level energy dissipation under different levels of earthquake action.
- buckling-restrained brace,
- double-stage yielding,
- double-yield displacement ratio,
- double-yield bearing capacity ratio,
- hysteresis curve,
- plastic deformation

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References(28)

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