Hysteretic Bond Stress-Slip Response of Deformed Bars in Concrete under Uniaxial Lateral Pressure
Publication: Journal of Structural Engineering
Volume 144, Issue 6
Abstract
The bond stress-slip relation between steel bars and concrete under reversed loading is very important for the seismic analysis and rehabilitation of concrete structures. In this study, an experimental investigation has been conducted to study the hysteretic bond response of deformed bars under uniaxial lateral pressure. Based on the experimental results, the variation of the bond parameters of reinforced concrete under different reversed loading conditions, uniaxial lateral pressures, and bar diameters were examined. It was found that the decay in the peak bond stress and frictional resistance is greatly influenced by lateral pressure and the bar diameter. Moreover, an empirical bond stress-slip constitutive model for reinforced concrete under reversed loading was 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, the Open Research Found Program of Zhejiang Key Laboratory of Civil Engineering Structures and Disaster Prevention and Mitigation Technology, the Science and Technology Research Program of Chongqing Municipal Education Commission with Grant No. KJ1705125, and the Chongqing Youth Science and Technology Talent Program with Grant No. cstc2014kjrc-qnrc30001 of the People’s Republic of China is greatly acknowledged.
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Published In
Journal of Structural Engineering
Volume 144 • Issue 6 • June 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: Apr 11, 2016
Accepted: Nov 1, 2017
Published online: Mar 20, 2018
Published in print: Jun 1, 2018
Discussion open until: Aug 20, 2018
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