A new bond slip model for reinforced concrete structures: Validation by modelling a reinforced concrete tie
Abstract
Purpose
The purpose of this paper is to present a new bond slip model for reinforced concrete structures. It consists in an interface element (3D) which represents the interface between concrete (modeled in 3D) and steel, modeled using 1D truss elements.
Design/methodology/approach
The formulation of the interface element is presented and verified through a comparison with an analytical solution on an academic case. Finally, the model is compared with experimental results on a reinforced concrete tie.
Findings
Contrary to the classical perfect or “no-slip” relation which supposes the same displacement between steel and concrete, the proposed model is able to reproduce both global (force-displacement curve) and local (crack openings) results.
Originality/value
The proposed approach, applicable to large-scale computations, represents a valuable alternative to the no-slip relation hypothesis to correctly capture the crack properties of reinforced concrete structures.
Keywords
Acknowledgements
The first author would like to deeply thank T. Charras and S. Pascal for their helpful discussions in the elaboration and the implementation of the interface element in the finite element code Cast3M. The authors also thank AREVA for their helpful discussions.
Citation
Mang, C., Jason, L. and Davenne, L. (2015), "A new bond slip model for reinforced concrete structures: Validation by modelling a reinforced concrete tie", Engineering Computations, Vol. 32 No. 7, pp. 1934-1958. https://doi.org/10.1108/EC-11-2014-0234
Publisher
:Emerald Group Publishing Limited
Copyright © 2015, Emerald Group Publishing Limited