Effect of Loading Rate on Bond Behavior of Deformed Reinforcing Bars in Concrete under Biaxial Lateral Pressures
Publication: Journal of Structural Engineering
Volume 142, Issue 6
Abstract
The bond of reinforcing steel bars is closely related to the stress state in the surrounding concrete. However, most of the current studies are limited to static monotonic loading and only few studies on the dynamic bond behavior of deformed bars under lateral pressures are reported in the literature. The purpose of this paper is to present an experimental investigation on the effect of the loading rate on the bond behavior of deformed bars subjected to biaxial lateral pressures. The test results indicate that the bond parameters are influenced by lateral pressures, loading rate, bar diameter, and concrete strength. Finally, an empirical bond stress-slip relationship for deformed steel bars is proposed and validated against experimental results.
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Acknowledgments
The financial support from the National Natural Science Foundation with Grant Nos. 51278082 and 51421064; and the Open Research Fund Program of Zhejiang Key Laboratory of Civil Engineering Structures and Disaster Prevention and Mitigation Technology, of the People’s Republic of China, is greatly acknowledged.
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Published In
Journal of Structural Engineering
Volume 142 • Issue 6 • June 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Dec 25, 2014
Accepted: Nov 24, 2015
Published online: Feb 4, 2016
Published in print: Jun 1, 2016
Discussion open until: Jul 4, 2016
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