Environmental Fatigue and Static Behavior of RC Beams Strengthened with Carbon-Fiber-Reinforced Polymer
Publication: Journal of Composites for Construction
Volume 8, Issue 3
Abstract
Many countries around the world have tremendous needs to repair and strengthen their transportation infrastructure. Almost everywhere, traffic loads have reached levels largely exceeding design expectations. Northern countries also experience severe winter conditions that are combined with an extensive use of deicing salts and accelerate structural deterioration. In Canada, the extent of deterioration has prompted many authorities, including the federal and provincial governments, to investigate the potential use of fiber-reinforced polymer products to extend the life of their existing structures. However, it is widely recognized that the large-scale implementation of these products is often impaired by the lack of data on their durability. This paper presents an experimental project undertaken in order to assess the durability of reinforced concrete beams externally strengthened with two types of carbon-fiber-reinforced polymer (CFRP). The beams were first exposed to either wet-dry cycles or continuous immersion in water and then were loaded in fatigue. Finally, they were tested quasi-statically under four-point bending up to failure. The test results presented here provide some insights on the potential long-term performance of CFRP-strengthened beams exposed to severe environmental conditions.
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References
Barnes, R. A., and Mays, G. C.(1999). “Fatigue performance of concrete beams strengthened with CFRP plates.” J. Compos. Constr., 3(2), 63–72.
Bizindavyi, L., and Neale, K. W.(1999). “Transfer lengths and bond strengths for composites bonded to concrete.” J. Compos. Constr., 3(4), 153–160.
Bonacci, J. F., and Maalej, M.(2001). “Behavioral trends of RC beams strengthened with externally bonded FRP.” J. Compos. Constr., 5(2), 102–113.
Brena, S. F., Wood, S. L., and Kreger, M. E. (2002). “Fatigue tests of reinforced concrete beams strengthened using carbon fiber reinforced polymer composites.” Proc., 2nd Int. Conf. on Durability of Fibre Reinforced Polymer (FRP) Composites for Construction, B. Benmokrane, and E. El-Salakawy, eds., Université de Sherbrooke, Montreal, 575–586.
Canadian Standards Association (CSA). (1994). “Design of concrete structures.” CSA-A23.3-94, Rexdale, Ont., Canada.
Green, M. F., Bisby, L. A., Beaudoin, Y., and Labossière, P.(2000). “Effect of freeze-thaw cycles on the bond durability between fibre reinforced polymer plate reinforcement and concrete.” Can. J. Civ. Eng., 27(5), 949–959.
Intelligent Sensing for Innovative Structures Canada (ISIS). (2001). Strengthening reinforced concrete structures with externally-bonded fibre reinforced polymers (design manual IV), Intelligent sensing for innovative structures, Canadian Network of Centres of Excellence, Winnipeg, Man., Canada.
Labossière, P., et al. (2000). “FRP Strengthening of the Ste-Émélie-de-l’Énergie Bridge: Design, instrumentation and field testing.” Can. J. Civ. Eng., 27(5), 916–927.
Raı⁁che, A., Beaudoin, Y., and Labossière, P. (1999). “Durability of composite materials used as external reinforcement for RC beams.” Proc., Annual Conf. of the Canadian Society for Civil Engineering, Canadian Society for Civil Engineering, Regina, Sask., Canada, 155–164.
Shahawy, M., and Beitelman, T. E.(1999). “Static and fatigue performance of RC beams strengthened with CFRP laminates.” J. Struct. Eng., 125(6), 613–621.
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Copyright © 2004 American Society of Civil Engineers.
History
Received: Aug 22, 2002
Accepted: Jun 4, 2003
Published online: May 14, 2004
Published in print: Jun 2004
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