Finite Element Simulation of Patch Repaired Reinforced Concrete Beams


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Abstract


This paper presents information on the factors that influence the performance of patch repair in reinforced concrete beams, namely the in-service exposure conditions, compatibility requirements and construction practices. The significance of property mismatch between the repair material and the existing reinforced concrete structure is illustrated through an analytical study involving finite element analysis that determines the performance of a patch repair. The ADINA finite element software is used in this study to simulate the behavior of the four experimental beams. The beams were 1200mm long with a cross section of 100mm x 150mm with defects size of 500x100x30 mm. Three of the beams were repaired using either the same concrete material, mortar, or fast rapid material and one beam remained defective. Element types used in the models, constitutive equations and assumptions, loading and boundary conditions, and convergence criteria are thoroughly discussed in the paper. It is concluded that analytical methods could be an effective tool in the proper selection of repair material and techniques.
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Keywords


Reinforced Concrete; Beam; Patch Repair; Finite Elements

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References


Mehta, P. K., Durability of Concrete - Fifty Years of Progress?, ACI, SP-126, Editor: V.M. Malhotra, 1-32, 1991.

Emmons, P.E. and Vaysburd, A.M., The Total System Concept - Necessary for Improving the Performance of Repaired Structures, Concrete International, March, 31- 36, 1995.

Cleland, D.J. et al., Concrete Repairs - Dependence on Site Conditions, Final Report on SERC Grant GR/F02779, Queen’s University, Belfast, Ireland, 1993.

Emberson, N. K. and Mays, G. C., Significance of Property Mismatch in the Patch Repair of Structural Concrete. Part 3: Reinforced Concrete Members in Flexure, Magazine of Concrete Research, Vol. 48, No. 174, 45-57, 1996.

Chidiac, S. E., Noruziaan, B., and Mailvaganam, N., Service Life Prediction of Reinforced Concrete Repair System, CHIDIAC & Associates Ltd. Technical Report no. DC961121.1, Ottawa, Canada, 1997.

Hutchinson, A. R., Adhesion of Repair Materials to Concrete and Steel, Final Report on SERC Grant GR/F88087, Brookes University, Oxford, England, 1993.

Dhir, R. K., Hewlett, P.C. and Dyer, T.D., Influence of Microstructure on the Physical Properties of Self-Curing Concrete, ACI Materials Journal, Vol. 93, 465-471, 1996.

Cairns, J., Behaviour of Concrete Beams with Exposed Reinforcement, Proceedings of Institution of Civil Engineers, Structures and Buildings, Vol. 99, May, 141-154, 1993.

Cairns, J., Load Relief During Structural Repairs to Reinforced Concrete Beams, Institution of Civil Engineers, Structures and Buildings, Vol. 99, November, pp 417-427, 1993.

ADINA (Automatic Dynamic Incremental Nonlinear Analysis), Watertown, MA, USA, 2002

William, K. J. and Warnke, E. D. Constitutive Model for the Triaxial Behaviour of Concrete, Proceedings of the International Association for Bridge and Structural Engineering, 19, p.174, ISMES, Bergamo, Italy, 1975.


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