Research on Seismic Performance of Prefabricated Concrete Beam-to-Column Joints with New Stirrups

QIU Yu; ZOU Xiaozhou; LUO Yunhai; LI Lijuan; WU Nianduo; WANG Xiaoping; XIONG Zhe; XIE Longpan

doi:10.13204/j.gyjzG22081007

Volume 52 Issue 12

Dec. 2022

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2022 > 52(12): 72-79,148

QIU Yu, ZOU Xiaozhou, LUO Yunhai, LI Lijuan, WU Nianduo, WANG Xiaoping, XIONG Zhe, XIE Longpan. Research on Seismic Performance of Prefabricated Concrete Beam-to-Column Joints with New Stirrups[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(12): 72-79,148. doi: 10.13204/j.gyjzG22081007

Citation:

QIU Yu, ZOU Xiaozhou, LUO Yunhai, LI Lijuan, WU Nianduo, WANG Xiaoping, XIONG Zhe, XIE Longpan. Research on Seismic Performance of Prefabricated Concrete Beam-to-Column Joints with New Stirrups[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(12): 72-79,148. doi: 10.13204/j.gyjzG22081007

Citation:

QIU Yu, ZOU Xiaozhou, LUO Yunhai, LI Lijuan, WU Nianduo, WANG Xiaoping, XIONG Zhe, XIE Longpan. Research on Seismic Performance of Prefabricated Concrete Beam-to-Column Joints with New Stirrups[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(12): 72-79,148. doi: 10.13204/j.gyjzG22081007

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Research on Seismic Performance of Prefabricated Concrete Beam-to-Column Joints with New Stirrups

doi: 10.13204/j.gyjzG22081007

1. Guangdong Xiangshun Construction Group Co., Ltd., Yunfu 527400, China;
2. School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China;
3. China Construction Eighth Engineering Division Co., Ltd., Shanghai 200122, China

Received Date: 2022-08-10
Available Online: 2023-03-22

Abstract

Abstract

Since the one-time forming stirrups and multi-spiral stirrups (refers to as "new stirrups") have an excellent confined effect, a prefabricated concrete beam-column joints with new stirrups was proposed. Based on the difference of joint strength, joint types, construction methods and stirrup types, six full-scale concrete beam-column joint specimens were designed. According to the quasi-static load tests, the failure modes, hysteresis curves, skeleton curves, ductility, energy dissipation capacity, strength degradation, stiffness degradation, and joint rotation were discussed. It was found that:strong joint specimens collapsed by the bending failure of beam ends, and weak joint specimens failed by the shear failure of joint zones; the prefabricated concrete beam-column joints with new stirrups had plump hysteresis curves, and their seismic performance indexes were similar to that of the cast-in-place joints; the joint rotation of the prefabricated concrete beam-column joints with new stirrups was larger than that of the cast-in-place joints. In addition, the Code of Concrete Structures Design(GB 50010-2010) can be used to design the prefabricated concrete beam-column joints with new stirrups, accompanied with a certain degree of safety reserve.
- new stirrup,
- prefabricated concrete,
- beam-to-column joint,
- seismic performance

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References(17)

References

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