FE Modeling of CFRP-Repaired RC Beams Subjected to Fatigue Loading
Publication: Journal of Composites for Construction
Volume 16, Issue 5
Abstract
A constitutive model is developed for fiber-reinforced polymer (FRP)-to-concrete bond for fatigue loading. The model is verified against available test data with a framework developed for further calibration as new data becomes available. The formulation is incorporated into a finite-element program and the fatigue behavior of FRP-repaired reinforced concrete (RC) beams is analyzed. Comparing the finite-element model results with test data shows that the model is capable of accurately predicting the overall cyclic fatigue loading response of RC members strengthened with FRP composites. The model is also able to capture the change in the peak deflection, the FRP plate strain development and distribution with increasing load cycles, and the number of load cycles to failure. The need for more tests on FRP-to-concrete bonded interfaces subjected to fatigue loading is identified, as is the need to measure key modeling parameters from such tests.
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Acknowledgments
This study was funded via Australian Research Council (ARC) discovery grant DP0453096. The support of the ARC is acknowledged.
References
Adimi, R. M., Rahman, A. H., and Benmokrane, B. (2000). “New method for testing fiber-reinforced polymer rods under fatigue.” J. Compos. Construct., 4(4), 206–213.
Aidoo, J., Harries, K. A., and Petrou, M. F. (2004). “Fatigue behaviour of carbon fiber reinforced polymer-strengthened reinforced concrete bridge girders.” J. Compos. Construct., 8(6), 501–509.
Al-Hammoud, R., Soudki, K., and Topper, T. H. (2011). “Fatigue flexural behaviour of corroded reinforced concrete beams repaired with CFRP sheets.” J. Compos. Construct., 15(1), 42–51.
Balaguru, P. N., and Shah, S. P. (1982). “A method of predicting crack widths and deflections for fatigue loading.” Fatigue of Concrete Structures, ACI Special Publication 75, American Concrete Institute, Detroit, 153–175.
Bizindavyi, L., Neale, K. W., and Erki, M. A. (2003). “Experimental investigation of bonded fiber reinforced polymer-concrete joints under cyclic loading.” J. Compos. Construct., 7(2), 127–134.
Chen, J. F., and Teng, J. G. (2001). “Anchorage strength models for FRP and steel plates bonded to concrete.” J. Struct. Eng., 127(7), 784–791.
Chong, K. T., Gilbert, R. I., and Foster, S. J. (2004). “Modelling time-dependent cracking in reinforced concrete using bond-slip interface elements.” Comput. Concr., 1(2), 151–168.
Comité Euro-International du Béton (CEB-FIP). (1993). “Model code 1990.”, Paris.
Dai, J. G., Saito, Y., Ueda, T., and Sato, Y. (2005). “Static and fatigue bond characteristics of interfaces between CFRP sheets and frost damage experienced concrete.” Proc., 7th Int. Symp. on Fiber Reinforced Polymer Reinforcement for Reinforced Concrete Structures, Shield, C. K., Busel, J. P., Walkup, S. L., and Gremel, D. D., eds., Kansas City, MO, American Concrete Institute (ACI), Farmington Hills, MI, 1515–1530.
De Lorenzis, L., Miller, B., and Nanni, A. (2001). “Bond of fiber-reinforced polymer laminates to concrete.” ACI Mater. J., 98(3), 256–264.
Ekenel, M., and Myers, J. J. (2009). “Fatigue performance of CFRP strengthened RC beams under environmental conditioning and sustained load.” J. Compos. Constr., 13(2), 93–102.
Elsayed, W. M., Ebead, U. A., and Neale, K. W. (2007). “Interfacial behaviour and debonding failures in FRP-strengthened concrete slabs.” J. Compos. Constr., 11(6), 619–628.
El-Tawil, S., Ogunc, C., Okeil, A., and Shahawy, M. (2001). “Static and fatigue analyses of RC beams strengthened with CFRP laminates.” J. Compos. Constr., 5(4), 258–267.
Ferrier, E., Bigaud, D., Clement, J. C., and Hamelin, P. (2011). “Fatigue-loading effect on RC beams strengthened with externally bonded FRP.” Constr. Build. Mater., 25(2), 539–546.
Ferrier, E., Bigaud, D., Hamelin, P., Bizindavyi, L., and Neale, K. W. (2005). “Fatigue of CFRPs externally bonded to concrete.” Mater. Struct., 38(1), 39–46.
Harries, K. A., Reeve, B., and Zorn, A. (2007). “Experimental evaluation of factors affecting monotonic and fatigue behavior of fiber-reinforced polymer-to-concrete bond in reinforced concrete beams.” ACI Struct. J., 104(6), 667–674.
Heffernan, P. J., and Erki, M. (2004). “Fatigue behaviour of reinforced concrete beams strengthened with carbon fiber reinforced plastic laminates.” J. Compos. Constr., 8(2), 132–140.
Hollaway, L. C., and Teng, J. G. (2008). Strengthening and rehabilitation of civil infrastructures using fibre-reinforced polymer (FRP) composites, Woodhead Publishing, Cambridge, UK.
Holmen, J. O. (1982). “Fatigue of concrete by constant and variable amplitude loading.” Fatigue of Concrete Structures, ACI Special Publication 75, American Concrete Institute, Detroit, 71–110.
Iwashita, K., Wu, Z., Ishikawa, T., Hamaguchi, Y., and Suzuki, T. (2004). “Bonding and debonding behaviour of FRP sheets under fatigue loading.” J. Jpn. Soc. Compos. Mater., 30(1), 24–32 (in Japanese).
Khomwan, N., and Foster, S. J. (2003). “FE modelling of FRP-repaired RC plane stress elements.” Fibre-Reinforced Polymer for Reinforced Concrete Structures, Proc., 6th Int. Symp. on FRP Reinforcement for Concrete Structures (FRPRCS-6), Tan, K. H., ed., World Scientific Publishing, Singapore, 1177–1186.
Khomwan, N., and Foster, S. J. (2004). “FE modelling of bond in FRP-repaired plane stress members.” Proc., Developments in Mechanics of Structures and Materials, 18th Australasian Conf. on the Mechanics of Structures and Materials (ACMSM 18), A.A. Balkema, Rotterdam, Netherlands, 113–118.
Khomwan, N., Foster, S. J., and Smith, S. T. (2005). “Debonding failure in CFRP flexurally strengthened reinforced concrete beams.”, School of Civil and Environmental Engineering, Univ. of New South Wales, Sydney, Australia.
Khomwan, N., Foster, S. J., and Smith, S. T. (2010). “FE modelling of FRP-repaired planar concrete elements subjected to monotonic and cyclic loading.” J. Compos. Constr., 14(6), 720–729.
Ko, H., and Sato, Y. (2007). “Bond stress-slip relationship between FRP sheet and concrete under cyclic load.” J. Compos. Constr., 11(4), 419–426.
Loo, K. Y. M. (2010). Fatigue behaviour of CFRP-repaired corroded RC beams, Ph.D. thesis, School of Civil and Environmental Engineering, Univ. of New South Wales, Sydney, Australia.
Loo, K. Y. M., Foster, S. J., and Smith, S. T. (2012). “Fatigue behaviour of CFRP-repaired corroded RC beams.” ACI Struct. J., in press.
Lu, X. Z., Teng, J. G., Ye, L. P., and Jiang, J. J. (2005). “Bond-slip models for FRP sheets/plates bonded to concrete.” Eng. Struct., 27(6), 920–937.
Mallett, G. P. (1991). Fatigue of reinforced concrete, State of the art review 2, Transport and Road Research Laboratory, HMSO Publications, London, 166 pp.
Miner, M. (1945). “Cumulative damage in fatigue.” J. Appl. Mech., 12(3), A159–A164.
Nigro, E., Di Ludovico, M., and Bilotta, A. (2011). “Experimental investigation of FRP-concrete debonding under cyclic actions.” J. Mater. Civ. Eng., 23(4), 360–371.
Papakonstantinou, C. G., Balaguru, P. N., and Petrou, M. F. (2002). “Analysis of reinforced concrete beams strengthened with composites subjected to fatigue loading.” Concrete: Material science to application, ACI Special Publication SP 206-3, American Concrete Society, Detroit, 41–60.
Rougier, V. C., and Luccioni, B. M. (2007). “Numerical assessment of FRP retrofitting systems for reinforced concrete elements.” Eng. Struct., 29(8), 1664–1675.
Shahawy, M., and Beitelman, T. (1999). “Static and fatigue performance of RC beams strengthened with CFRP laminates.” J. Struct. Eng., 125(6), 613–621.
Tilly, G. P. (1988). “Durability of concrete bridges.” J. Inst. Highways Transport., February, 10–19.
Varastehpour, H., and Hamelin, P. (1997). “Strengthening of concrete beams using fiber reinforced plastics.” Mater Struct., 30(3), 160–166.
Yao, J., Teng, J. G., and Chen, J. F. (2005). “Experimental study on FRP-to-concrete bonded joints.” Composites Part B, 36(2), 99–113.
Yun, Y., Wu, Y., and Tang, W. C. (2008). “Performance of FRP bonding systems under fatigue loading.” Eng. Struct., 30(11), 3129–3140.
Zhang, R., and Shi, Z. (2008). “Numerical simulation of rebar/concrete interface debonding of FRP strengthened RC beams under fatigue loading.” Mater. Struct., 41(10), 1613–1621.
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© 2012 American Society of Civil Engineers.
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Received: Jul 29, 2011
Accepted: Jan 31, 2012
Published online: Feb 3, 2012
Published in print: Oct 1, 2012
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