Flexure and Shear Deformation of GFRP-Reinforced Shear Walls
Publication: Journal of Composites for Construction
Volume 18, Issue 2
Abstract
Experimental results of midrise RC shear walls under quasistatic cyclic loading were used to investigate the interaction of flexural and shear deformations. Four large-scale shear walls—one reinforced with steel bars and three totally reinforced with glass fiber–reinforced polymer (GFRP) bars—were tested to failure where the behavior was dominated by flexure. It was found that relying on the diagonal displacement transducers tended to overestimate shear deformations by 30 to 50%. To correct the shear deformations, the center of rotation of the tested shear walls was evaluated. Based on experimental results, the fundamental equation of flexural deformation obtained values of the center of rotation (). Using the suggested values of produced consistent results for the flexure and shear deformations. Decoupling the total deformation of the tested shear walls into flexural and shear deformations was discussed. Using elastic materials (GFRP bars) gave uniform distributions of shear strains along the shear region of the GFRP-reinforced shear walls ranging from 15 to 20% of the total deformation, resulting in less shear deformations than those experienced in the steel-reinforced shear wall; for this yielding of the steel bars intensified the shear strains at the yielding location, causing significant degradation in shear deformation ranging from 2 to 20% of total deformation.
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Acknowledgments
This research was conducted with funding from the Tier-1 Canada Research Chair in Advanced Composite Materials for Civil Structures and the Natural Sciences and Engineering Research Council of Canada (NSERC-Industry Research Chair Program). The authors are also grateful to the staff of the new Canadian Foundation for Innovation (CFI) structural laboratory in the University of Sherbrooke’s Department of Civil-Engineering.
References
American Concrete Institute (ACI). (2006). “Guide for the design and construction of concrete reinforced with FRP bars.”, Farmington Hills, MI.
American Concrete Institute (ACI). (2008). “Building code requirements for structural concrete and commentary.”, Farmington Hills, MI.
Bakis, C. E., et al. (2002). “Fiber-reinforced polymer composites for construction—State-of-the-art review.” J. Compos. Constr., 73–87.
Beyer, K., Dazio, A., and Priestley, M. (2011). “Shear deformations of slender reinforced concrete walls under seismic loading.” ACI Struct. J., 108(2), 167–177.
Canadian Standards Association (CSA). (2004). “Design of concrete structures standard.” CAN/CSA A23.3-04, Mississauga, ON.
Canadian Standards Association (CSA). (2010). “Specifications for fibre reinforced polymers.” CAN/CSA S807-10, Mississauga, ON.
Canadian Standards Association (CSA). (2012). “Design and construction of building components with fiber-reinforced polymers.” CAN/CSA S806-12, Mississauga, ON.
Cardenas, A. E., Hanson, J. M., Corley, W. G., and Hognestad, E. (1973). “Design provisions for shear walls.” ACI J., 70(3), 221–230.
El-Salakawy, E., Benmokrane, B., El-Ragaby, A., and Nadeau, D. (2005). “Field investigation on the first bridge deck slab reinforced with glass FRP bars constructed in Canada.” J. Compos. Constr., 470–479.
Fintel, M. (1995). “Performance of buildings with shear walls in earthquakes of the last thirty years.” PCI J., 40(3), 62–80.
Hiraishi, H. (1984). “Evaluation of shear and flexural deformations of flexural type shear walls.” Bull. New Zealand National Soc. Earthquake Eng., 17(2), 135–144.
Jiang, H., and Kurama, Y. C. (2010). “Analytical modeling of medium-rise reinforced concrete shear walls.” ACI Struct. J., 107(4), 400–410.
Kassem, C., Farghaly, A. S., and Benmokrane, B. (2011). “Evaluation of flexural behavior and serviceability performance of concrete beams reinforced with FRP bars.” J. Compos. Constr., 682–695.
Massone, L. M., and Wallace, J. W. (2004). “Load – Deformation responses of slender reinforced concrete walls.” ACI Struct. J., 101(1), 103–113.
Mohamed, N., Farghaly, A. S., Benmokrane, B., and Neale, K. W. (2013). “Experimental investigation of concrete shear walls reinforced with glass-fiber-reinforced bars under lateral cyclic loading.” J. Compos. Constr.,.
Oesterle, R. G., Aristizabal-Ochoa, J. D., Fiorato, A. E., Russell, H. G., and Corley, W. G. (1979). “Earthquake resistant structural walls—Test of isolated walls—Phase II.”, National Science Foundation, Arlington, VA.
Salonikios, T. N. (2002). “Shear strength and deformation patterns of R/C walls with aspect ratio 1.0 and 1.5 designed to Eurocode 8 (EC8).” Eng. Struct., 24(1), 39–49.
Sharbatdar, M. K., and Saatcioglu, M. (2009). “Seismic design of FRP reinforced concrete structures.” Asian J. Applied Sci., 2(3), 211–222.
Sittipunt, C., Wood, S. L., Lukkunaprasit, P., and Pattararattanakul, P. (2001). “Cyclic behavior of reinforced concrete structural walls with diagonal web reinforcement.” ACI Struct. J., 98(4), 554–562.
Tobbi, H., Farghaly, A. S., and Benmokrane, B. (2012). “Concrete columns reinforced longitudinally and transversally with glass fiber-reinforced polymer bars.” ACI Struct. J., 109(4), 551–558.
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Published In
Journal of Composites for Construction
Volume 18 • Issue 2 • April 2014
Copyright
© 2013 American Society of Civil Engineers.
History
Received: May 6, 2013
Accepted: Sep 25, 2013
Published online: Nov 15, 2013
Published in print: Apr 1, 2014
Discussion open until: Apr 15, 2014
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