Experimental Study on the Competitive Failure of Headed Stud Connectors under Freeze–Thaw Cycles
Publication: Journal of Cold Regions Engineering
Volume 38, Issue 3
Abstract
To study the shear behavior and competitive failure mechanisms of headed stud connectors in steel–concrete composite (SCC) structures under the influence of freeze– thaw cycles (FTCs), the material performance test of C60 concrete after FTCs and the pushout test of 36 miniaturized specimens of headed stud connectors under FTCs were carried out. After various FTCs, the cubic compressive strength and dynamic elastic modulus of C60 concrete were measured. In the pushout tests, special attention was given to studying the failure modes, load–slip curves, shear capacity, and shear stiffness of stud connectors. A revised method for calculating the shear capacity of headed stud connectors, considering the effects of FTCs, is suggested based on current design codes. The study findings indicate that the performance of stud connectors is adversely affected by FTCs, leading to a degradation in their shear capacity and stiffness. As the FTCs’ effect intensifies, the two failure modes, stud shearing and concrete cracking, undergo alterations.
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Data Availability Statement
Some or all data, models, or codes generated or used during the study are available from the corresponding author by request.
Acknowledgments
The authors acknowledge projects supported by the National Natural Science Foundation of China (NSFC 52078424) and the Guangxi Province Science and Technology Support Program (AB23026124).
Author contributions: Xing Wei: Methodology, Resources, Writing—review editing, Supervision, and Funding acquisition. Zhirui Kang: Conceptualization, Formal analysis, Writing—original draft. Lin Xiao: Writing-original draft, Conceptualization, Data curation. Jing Zhang: Investigation, Resources, Formal analysis. Gangyi Zhan: Validation, Data curation, and Visualization.
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Information & Authors
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Published In
Journal of Cold Regions Engineering
Volume 38 • Issue 3 • September 2024
Copyright
© 2024 American Society of Civil Engineers.
History
Received: Aug 16, 2023
Accepted: Feb 7, 2024
Published online: Jun 24, 2024
Published in print: Sep 1, 2024
Discussion open until: Nov 24, 2024
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