Numerical Simulation of the Bond Behavior between Concrete and Steel Reinforcing Bars in Specialty Concrete

Authors: Camille A. Issa, Omar Masri

Abstract:

In this study, the commercial finite element software ABAQUS was used to develop a three-dimensional nonlinear finite element model capable of simulating the pull-out test of reinforcing bars from underwater concrete. The results of thirty-two pull-out tests that have different parameters were implemented in the software to study the effect of the concrete cover, the bar size, the use of stirrups, and the compressive strength of concrete. The interaction properties used in the model provided accurate results in comparison with the experimental bond-slip results, thus the model has successfully simulated the pull-out test. The results of the finite element model are used to better understand and visualize the distribution of stresses in each component of the model, and to study the effect of the various parameters used in this study including the role of the stirrups in preventing the stress from reaching to the sides of the specimens.

Keywords: Bond strength, nonlinear finite element analysis, pull-out test, underwater concrete.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1109663

References:

[1] J. Filho, A.H. El Debs, “Stiffness Loss on RC Elements with Simulation of Contact on Steel-Concrete Interface”, ABAQUS Users’ Conference, 267-280, Boston, USA, 2004.
[2] ACI Committee 408, “Bond and Development of Straight Reinforcing Bars in Tension”, American Concrete Institute, 42, Farmington Hills, MI, USA, 2003.
[3] M.H. Harajli, “Development/Splice Strength of Reinforcing Bars Embedded in Plain and Fiber Reinforced Concrete”, ACI Structural Journal, 91(5), 511-520, Sept-Oct, 1994.
[4] M. Valcuende, C. Parra, “Bond Behaviour of Reinforcement in Self- Compacting Concrete”, Construction and Building Materials, 23, 162- 170, 2009.
[5] S. Lettow, J. Ožbolt, R. Eligehausen, “Bond of RC Members Using Nonlinear 3D FE Analysis”, Fracture Mechanics of Concrete Structures, 861-868, IA-FraMCoS, 2004.
[6] S. Khalfallah, M. Ouchenane, “A Numerical Simulation of Bond for Pull-out Tests: The Direct Problem”, Asian Journal of Civil Engineering (Building and Housing), 8(5), 491-505, 2007.
[7] M. Raous, M.A. Karray, “Model Coulping Friction and Adhesion for Steel-Concrete Interfaces”, International Journal of Computer Applications in Technology, 34(1), 42-51, 2009.
[8] X. Li, “Finite Element Modeling of Skewed Reinforced Concrete Brides and The Bond-Slip Relationship Between Concrete and Reinforcement”, Master Thesis, Auburn University, Alabama, December, 2007.
[9] J.J. Assaad, C.A Issa, “Effect of Washout Loss on Bond Behavior of Steel Emedded in Underwater Concrete”, ACI Structural Journal, 110(3), 2013.
[10] M.C. CEB-FIP, “90 (1993): Design of Concrete Structures. CEB-FIPModel- Code 1990”, British Standard Institution, London, UK, 1993.
[11] J.J. Assaad, C.A Issa, “Bond Strength of Epoxy-Coated Bars in Underwater Concrete”, Construction and Building Materials, 30, 667- 674, 2012.
[12] D. Ngo, A.C. Scordelis, “Finite Element Analysis of Reinforced Concrete Beams”, ACI Journal Proceedings, 64(3), 152-163, 1967.
[13] G. Pijaudier-Cabot, J. Mazars, J. Pulikowski, “Steel-Concrete Bond Analysis with Nonlocal Continuous Damage”, Journal of Structural Engineering, 117(3), 862-882, 1991.
[14] B.M. Luccioni, D.E. Lopez, R.F. Danesi, “Bond-Slip in Reinforced Concrete Element”, Journal of Structural Engineering, 131(11), 1690- 1698, 2005.
[15] ABAQUS v.6.9, “ABAQUS Analysis User’s Manual”, Dassault Systemes, RI, USA, 2009.