Shear Resistance of Perfobond Rib Shear Connectors under Cyclic Loading
Publication: Journal of Structural Engineering
Volume 150, Issue 2
Abstract
Perfobond rib shear connectors (known as PBL shear connectors) are structures widely used to transfer loads between concrete and steel structural elements. The performance of PBL shear connectors under monotonic loads has been extensively reported; however, their shear resistance under cyclic loads is not well investigated. A total of 13 PBL shear connector specimens were designed to explore their performance under cyclic displacement. The crack patterns and hysteretic load-slip responses of the specimens were observed. The cyclic displacement changed the crack development and accelerated the deterioration of the cohesive strength and shear-friction force. Cyclic loading weakened the transverse expansion of the damaged concrete dowel and reduced the contribution from the transverse reinforcement. On the basis of the test results, a theoretical method for estimating the peak shear resistance of a PBL shear connector under cyclic loading is proposed. The proposed model exhibits good accuracy in comparison with the test results.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
This study was supported by the National Natural Science Foundation of China (Grant Nos. U21A20154 and 52078436) and the Sichuan Science and Technology Program (Grant Nos. 2022JDRC0012, 2023YFG0064, and 2020JDJQ0078).
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Published In
Journal of Structural Engineering
Volume 150 • Issue 2 • February 2024
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© 2023 American Society of Civil Engineers.
History
Received: Nov 17, 2022
Accepted: Sep 6, 2023
Published online: Nov 23, 2023
Published in print: Feb 1, 2024
Discussion open until: Apr 23, 2024
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