Three-Dimensional Finite-Element Analysis of Bond-Slip Behavior between Crescent Ribbed Bar and Concrete Based on Spring Element
Publication: Journal of Materials in Civil Engineering
Volume 30, Issue 5
Abstract
This paper presents a finite-element model of pullout test specimens using a nonlinear spring element. The model simulates the bond-slip behavior between three-dimensional crescent ribbed bars and concrete. A total of 180 spring elements were created between the ribbed bar and concrete. This model simulates the gradational deformation from the loading end to the free end of the ribbed bar as closely as possible to the real situation. The displacements and stresses of the ribbed bars obtained were compared to experimental results. Good agreement was achieved from the comparison of the numerical and experimental results. The results indicate the feasibility of simulating the bond-slip behavior between three-dimensional ribbed bars and concrete by using a nonlinear spring.
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Acknowledgments
This work was supported by the National Natural Science Foundation of China (Grant No. 51678512) and Shandong Province R&D Key Project (2017GGX70107). The authors gratefully acknowledge the financial support.
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©2018 American Society of Civil Engineers.
History
Received: Jan 20, 2017
Accepted: Oct 31, 2017
Published online: Mar 13, 2018
Published in print: May 1, 2018
Discussion open until: Aug 13, 2018
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