EXPERIMENTAL RESEARCH ON SEISMIC PERFORMANCE OF T-SHAPED PREFABRICATED SHEAR WALLS WITH ENERGY-DISSIPATING VERTICAL JOINTS BEFORE AND AFTER STRENGTHENING WITH CFRP SHEETS

ZHANG Yumin; LI Xiang; PANG Bao; WANG Yuliang; CAI Zhanjun; HE Bin

doi:10.13204/j.gyjzG20092309

Volume 51 Issue 10

Feb. 2022

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2021 > 51(10): 87-93,65

YAO Xingyou, CHENG Guowei, GUO Yanli, ZHOU Shui, YANG Jiabao. ANALYSIS ON OVERALL BUCKLING OF COLD-FORMED THIN-WALLED STEEL LIPPED CHANNEL BEAMS WITH WEB OPENINGS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(10): 101-108,100. doi: 10.13204/j.gyjzg21081302

Citation:

ZHANG Yumin, LI Xiang, PANG Bao, WANG Yuliang, CAI Zhanjun, HE Bin. EXPERIMENTAL RESEARCH ON SEISMIC PERFORMANCE OF T-SHAPED PREFABRICATED SHEAR WALLS WITH ENERGY-DISSIPATING VERTICAL JOINTS BEFORE AND AFTER STRENGTHENING WITH CFRP SHEETS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(10): 87-93,65. doi: 10.13204/j.gyjzG20092309

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EXPERIMENTAL RESEARCH ON SEISMIC PERFORMANCE OF T-SHAPED PREFABRICATED SHEAR WALLS WITH ENERGY-DISSIPATING VERTICAL JOINTS BEFORE AND AFTER STRENGTHENING WITH CFRP SHEETS

doi: 10.13204/j.gyjzG20092309

ZHANG Yumin^1,2,
LI Xiang^1,2,
PANG Bao^1,2,
WANG Yuliang^{1,2
,
,},
CAI Zhanjun^1,2,
HE Bin^1,2

1. College of Civil and Architectural Engineering, North China University of Science and Technology, Tangshan 063210, China;
2. Earthquake Engineering Research Center of Hebei Province, Tangshan 063009, China

Received Date: 2020-09-23
Available Online: 2022-02-21

Abstract

Abstract

In order to study the seismic performance of joints and integral components of T-shaped prefabricated shear walls with enengy-dissipating vertical joints, quasi-static tests were carried out on two T-shaped shear wall specimens with enengy-dissipating vertical joints until the specimens were damaged. The damaged specimens were reinforced with carbon fiber sheets and subjected to secondary loading. The main change parameter of the shear wall was the axial compression ratio (0.1, 0.3). The bearing capacity, hysteretic performance, energy dissipation performance and stiffness degradation of the shear walls before and after reinforcement were compared and analyzed. The research results showed that:T-shaped shear wall with enengy-dissipating vertical joint showed good working performance, and the CFRP reinforced structure could quickly restore the building's function. The displacement ductility coefficients before and after reinforcement were close to or higher than 3, which reflected the good deformability of the specimen. The damper had good connection and working performance, and the specimen as a whole showed good enengy-dissipating capacity.
- prefabricated shear wall,
- vertical joint,
- quasi-static testing,
- CFRP sheet reinforcement,
- seismic performance

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References(22)

References

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