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http://dx.doi.org/10.12989/cac.2010.7.5.403

Open-slip coupled model for simulating three-dimensional bond behavior of reinforcing bars in concrete  

Shang, Feng (State Key Laboratory of Hydro Science and Engineering, Tsinghua University)
An, Xuhui (State Key Laboratory of Hydro Science and Engineering, Tsinghua University)
Kawai, Seji (State Key Laboratory of Hydro Science and Engineering, Tsinghua University)
Mishima, Tetsuya (Maeda Corporation)
Publication Information
Computers and Concrete / v.7, no.5, 2010 , pp. 403-419 More about this Journal
Abstract
The bond mechanism for reinforcing bars in concrete is equivalent to the normal contact and friction between the inclined ribs and the surrounding concrete. Based on the contact density model for the computation of shear transfer across cracks, an open-slip coupled model was developed for simulating three-dimensional bond behavior for reinforcing bars in concrete. A parameter study was performed and verified by simulating pull-out experiments of extremely different boundary conditions: short bar embedment with a huge concrete cover, extremely long bar embedment with a huge concrete cover, embedded aluminum bar and short bar embedded length with an insufficient concrete cover. The bar strain effect and splitting of the concrete cover on a local bond can be explained by finite element (FE) analysis. The analysis shows that the strain effect results from a large local slip and the splitting effect of a large opening of the interface. Finally, the sensitivity of rebar geometry was also checked by FE analysis and implies that the open-slip coupled model can be extended to the case of plain bar.
Keywords
bond; open-slip coupled model; strain effect; splitting effect; bar geometry;
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1 An, X., Shawky, A.A. and Maekawa, K. (1997), "The collapse mechanism of a subway station during the Great Hanshin earthquake", Cement Concrete Compos., 19, 241-257.   DOI   ScienceOn
2 Ayoub, A. and Filippou, F.C. (1999), "Mixed formulation of bond-slip problems under cyclic loads", J. Struct. Eng., 125(6), 661-671.   DOI
3 Bazant, Z.P. and Oh, B.J. (1983), "Crack band theory for fracture of concrete", Mater. Struct., 16, 155-157.
4 Bujadham, B. and Maekawa, K. (1992), "The universal model for stress transfer across cracks in concrete", Proceedings of JSCE, 17(451), 277-287.
5 Bujadham, B., Maekawa, K. and Mishima, T. (1990), "Cyclic discrete crack modeling for reinforced concrete", Computer Aided Analysis and Design of Reinforced Concrete Structures, Pineridge Press, 1225-1236.
6 Cox, J.V. and Herrmann, L.R. (1998), "Development of a plasticity bond model for steel reinforcement", Mech. Cohes.-Frict. Mater., 3, 155-180.   DOI   ScienceOn
7 Collins, M.P. and Vecchio, F. (1989), "The response of reinforced concrete to in-plane shear and normal stresses", University of Toronto, 1982.
8 Chou, L., Niwa, J. and Okamura, H. (1983), "Bond model for deformed bars embedded in massive concrete", Proc. of 2nd JCI Colloquium on Shear Analysis of RC Structures, JCI. 42-52.
9 Fukuura, N. and Maekawa, K. (1998), "Multi-directional crack model for in-plane reinforced concrete under reversed cyclic actions-Four-way fixed crack formulation and verification", Comput. Model. Concrete Struct., Euro-C, 143-152.
10 Gambarova, P., Rosati, G. and Zasso, B. (1989), "Steel-to-concrete bond after concrete splitting: constitutive laws and interface deterioation", Mater. Struct., 22, 347-356.   DOI   ScienceOn
11 Goto, Y. (1971), "Cracks formed in concrete around deformed tension bars", ACI J. Proceedings, 68(4), 244-251.
12 Hawkins, N.M., Lin I.J. and Jeang, F.L. (1982), "Local bond strength of concrete for cyclic reversed loading", Bond in concrete, Applied Science Publishers, London, 151-161.
13 Hauke, B. and Maekawa, K. (1999), "Three-dimensional modeling of reinforced concrete with multi-directional cracking", J. Mater. Concrete Struct. Pavements, JSCE, 45(634), 349-368.
14 Jendele, L and Cervenka J. (2006), "Finite element modeling of reinforcement with bond", Comp. Struct., 84, 1780-1791.   DOI   ScienceOn
15 Li, B., Maekawa, K. and Okamura, H. (1989), "Contact density model for stress transfer across crack in concrete", J. Fac. Eng, Univ. Tokyo (B), 40(1), 9-52.
16 Lura, P., Plizzari, G.A. and Riva, P. (2002), "3D finite-element modelling of splitting crack propagation", Mag. Concrete Res., 54(6), 481-493.   DOI   ScienceOn
17 Maekawa, K. and Okamura, H. (1983), "The deformational behavior and constitutive equation of concrete using the elasto-plastic and fracture model", J. Fac. Eng., Univ. Tokyo (B), 37(2), 253-328.
18 Maekawa, K., Pimanmas, A. and Okamura, H. (2003), "Nonlinear mechanics of reinforced concrete", Spon Press, London.
19 Mishima, T., Yamada, K. and Maekawa, K. (1992), "Localized deformational behavior of a crack in RC plates subjected to reversed cyclic loads", Proceedings of JSCE, 16(442), 161-170.
20 Okamura, H. and Maekawa, K. (1991), "Nonlinear analysis and constitutive models of reinforced concrete", Gihodo Press, Tokyo.
21 Tassios, T.P. and Yannopoulos, P.J. (1981), "Analytical studies on reinforced concrete members under cyclic loading based on bond stress-slip relations", ACI J., 5(6), 206-216.
22 Ragueneau, F., Dominguez, N. and Ibrahimbegovic, A. (2006), "Thermodynamic-based interface model for cohesive brittle materials: application to bond slip in RC structures", Comput. Method. Appl. M., 195, 7249-7263.   DOI   ScienceOn
23 Shima, H., Chou, L. and Okamura, H. (1987), "Micro and macro models for bond in reinforced concrete", J. Fac. Eng., Univ. Tokyo (B), 39(2), 133-194.
24 Salem, H.S. and Maekawa, K. (2003), "Pre- and postyield finite element method simulation of bond of ribbed reinforcing bars", J. Struct. Eng., 130(4), 671-680.
25 Teng, Z. and Zou, L. (1996), "Nonlinear Finite element analysis of RC members under reversed cyclic loading", China Civil Eng. J., 43(2), 17-29. (in Chinese)
26 Xu, Y.L., Shen, W.D. and Wang, H. (1994), "An experimental study of bond-anchorage properties of bars in concrete", J. Build. Struct., 15(3), 27-36. (in Chinese)