Seismic Response of GFRP-RC Interior Beam-to-Column Joints under Cyclic Static Loads

Rui Guo; Dan Yang; Bin Jia; Deyun Tang

doi:10.3390/buildings12111987

Buildings (Nov 2022)

Seismic Response of GFRP-RC Interior Beam-to-Column Joints under Cyclic Static Loads

Rui Guo,
Dan Yang,
Bin Jia,
Deyun Tang

Affiliations

Rui Guo: School of Civil Engineering, Southwest Jiaotong University, Chengdu 610032, China
Dan Yang: School of Civil Engineering, Southwest Jiaotong University, Chengdu 610032, China
Bin Jia: School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang 621010, China
Deyun Tang: China Construction First Group the Fifth Construction Co., Ltd., Beijing 100024, China

DOI: https://doi.org/10.3390/buildings12111987
Journal volume & issue: Vol. 12, no. 11
p. 1987

Abstract

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A total of nine specimens were constructed and tested under cyclic loads to investigate the differences in seismic behavior between glass fiber-reinforced polymer (GFRP)-reinforced concrete (RC) joints and RC beam-to-column joints. The experimental parameters included stirrup ratios, axial pressure ratios and concrete strength of the beam-to-column joints. The cyclic loading test results showed that the GFRP-RC beam-to-column joints can withstand significantly high lateral deformations without exhibiting brittle failure. Moreover, the RC beam-to-column joint exhibited significantly higher energy dissipation and residual displacement than the GFRP-RC beam-to-column joint by 50% and 60%, respectively. Finally, a shear capacity calculation method for the core zone of this kind of joint was proposed, which agreed well with the experimental results.

Published in Buildings

ISSN: 2075-5309 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Building construction
Website: https://www.mdpi.com/journal/buildings

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