Static Response of Corrosion Damaged High Performance Concrete Beams Strengthened with Externally Bonded GFRP Laminates
Keywords:
Corrosion damage, ductility, high performance concrete, strength, UDCGFRPAbstract
This paper presents the results of an experimental study conducted to evaluate the static response of corrosion damaged High Performance Concrete (HPC) beams strengthened with externally bonded Glass Fibre Reinforced Polymer (GFRP) laminates at the soffit of beam. The experimental study was carried out on 9 Reinforced Concrete (RC) beams of size 3000mm x 150mm x 250 mm cast using high performance concrete. One beam specimen neither corroded nor strengthened to serve as reference beam. Two beams were corroded to serve as corroded control. A reinforcement mass loss of approximately 10% and 25% were used. Corrosion damage was induced on the beams by immersing them in salt solution and applying measured electric current through the reinforcing bars. Two beams were strengthened with UDCGFRP laminates having 3mm and 5mm thickness. Two beams were 10% corroded and strengthened with UDCGFRP laminates having 3mm and 5mm thickness. The remaining Two beams were 25% corroded and strengthened with UDCGFRP laminates having 3mm and 5mm thickness. In total 9 beams were tested under monotonically increasing load and 9 beams were tested under cyclic loading. The variables considered include level of corrosion, type of GFRP laminate and thicknesses of GFRP laminate.The static test results show that the beams strengthened with externally bonded UDCGFRP laminates exhibit increased strength, enhanced flexural stiffness and sufficient ductility.
References
Alagusundaramoorthy, P., I. E. Harik, and C. C. Choo. (2003), Flexural Behavior of RC Beams Strengthened with Carbon Fiber Reinforced Polymer Sheets or Fabric, Journal of composites for Construction, 7(4), 292-301.
Almusallam, T. H., H. M. Elsanadedy, and Y. A. Al-Salloum. (2014), Effect of Longitudinal Steel Ratio on Behavior of RC Beams Strengthened with FRP Composites: Experimental and FE Study, Journal of Composites for Construction, 19(1) 0401- 4028.
Bencardino, Francesco, Giuseppe Spadea, and R. Narayan Swamy (2002), Strength and Ductility of Reinforced Concrete Beams Externally Reinforced with Carbon Fiber Fabric, Structural Journal 99(2), 163-171.
Carlos A., and Maria M. Lopez.(2006), Sensitivity Analysis of Reinforced Concrete Beams Strengthened with FRP Laminates, Cement and Concrete Composites, 28(1), 102-114.
Esfahani, Mohammad Reza, M. R. Kianoush, and A. R. Tajari.(2007), Flexural Behaviour of Reinforced Concrete Beams Strengthened by CFRP Sheets, Engineering Structures, 29(10), 2428-2444.
Ferrier, E., Bigaud, D., Clement, J. C., & Hamelin, P. (2011), Fatigue-Loading Effect on RC Beams Strengthened with Externally Bonded FRP, Construction and Building Materials, 25(2), 539-546.
Heffernan, P. J. and Erki, M.A. (2004), Fatigue Behavior of Reinforced Concrete Beams Strengthened with Carbon Fiber Reinforced Plastic Laminates, Journal of Composites for Construction, 8(2), 132-140.
Maaddawy, T., Soudki, K. and Topper, T., (2005). Long-term Performance of Corrosion-Damaged Reinforced Concrete Beams, ACI Structural Journal, 102(5), 649.
Mahjoub, Reza, and Seyed Hamid Hashemi.(2010), Finite Element Analysis of RC Beams Strengthened with FRP Sheets Under Bending, Australian Journal of Basic and Applied Sciences, 4(5), 773-778.
Ravikant, Shrivastava, Uttamasha Gupta, and U. B. Choubey. (2013), Effect Of Cyclic Loading on Flexural Behaviour of FRP Strengthened RC Beams: A Stability Point Approach. International Journal of Advanced Research in Engineering and Applied Sciences, 2(6), 9-26.
Yu, T., Li, C., Lei, J., and Zhang, H. (2011), Fatigue of Concrete Beams Strengthened With Glass-Fiber Composite Under Flexure, Journal of Composites for Construction, 15(4), 557-564.
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