[en] The main objective of this study is to numerically investigate rehabilitation of corrosion-damaged reinforced concrete (RC) beams with carbon fiber reinforced polymer (CFRP). In this study, three dimensional (3D) finite element (FE) models for the RC beams, strengthened with FRP sheets, was created. The effect of repairing on corrosion damaged RC beams has been investigated using FRP on load carrying capacity, ultimate deflection and ductility. To achieve these objectives, a beam with average steel mass losses of 31.6% was strengthened with various procedures using CFRP sheet. In addition, a beam with average steel mass losses of approximately 14.2% was strengthened. Results indicate that strengthening of all procedures using FRP sheet increase load carrying capacity and reduce ultimate deflection of the beam. In addition, the effect of strengthening on ultimate load carrying capacity of the beam keeps on increasing with the increase in percentage of corrosion.
Disciplines :
Civil engineering
Author, co-author :
Yousefi Moghadam, Sedighe
Ranjbar, Malek Mohammad
Madandoust, Rahmat
Kazemi, Mostafa ; Université de Liège - ULiège > Département ArGEnCo > Département ArGEnCo
Language :
English
Title :
Analytical study on the behavior of corrosion-damaged reinforced concrete beams strengthen with FRP
Khan, I., François, R., Castel, A., Structural performance of a 26-year-old corroded reinforced concrete beam (2012) European Journal of Environmental and Civil Engineering, 16 (3-4), p. 440
Almassri, B., Kreit, A., Al Mahmoud, F., Francois, R., Mechanical behavior of corroded RC beam strengthened by NSM CFRP rods (2014) Composites Part B: Engineering, 64, p. 97
Horrigmoe, G., Hansen, T., Assessment of the performance of structures attacked by reinforcement corrosion (2004) International RILEM Symposium on Advances in Concrete through Science and Engineering, , Northwestern University, Evanston, Illinois, March 22-24
Wang, W.L., Chen, J., Residual Strengths of Reinforced Concrete Beams with Heavy Deterioration (2011) Research Journal of Applied Sciences, Engineering and Technology, 3 (8), p. 798
Xie, J., Hu, R., Experimental study on rehabilitation of corrosion-damaged reinforced concrete beams with carbon fiber reinforced polymer (2012) Construction and Building Materials, 38, p. 708
Taranu, N., Cozmanciuc, R., Entuc, I., Budescu, M., Munteanu, V., Isopescu, D., The behavior of the interface between carbon fiber reinforced polymer composite plates and concrete (2015) Romanian Journal of Material, 45 (3), p. 232
Shah, S.P., Swartz, S.E., Ouyang, C., (1995) Fracture Mechanics of Concrete, , John Wiley & Sons, Inc., New York
Bangash, M.Y.H., (1989) Concrete and Concrete Structures: Numerical Modeling and Applications, 22 (15). , Elsevier Science Publishers Ltd., London, England
Kachlakev, D., Miller, T., Yim, S., Chansawat, K., Potisuk, T., (2001) Phd Thesis, Finite Element Modelingof Reinforced Concrete Structuresstrengthened with FRP Laminates, Final Report SRP 316, Oregon State University Department of Transportation
Maaddawy, T., Soudki, K., Topper, T., Long-term performance of corrosion-damaged reinforced concrete beams (2005) ACI Structural Journal, 102 (5), p. 649
Du, Y.G., Clark, L.A., Chan, A.H.C., Residual capacity of corroded reinforcing bars (2005) Magazine of Concrete Research, 57 (3), p. 135
Grace, N.F., Ragheb, W.F., Abdel-Sayed, G., Flexural and shear strengthening of concrete beams using new triaxially braided ductile fabric (2003) ACI Structural Journal, 100 (6), p. 804