Behavior of Glass Fiber–Reinforced Polymer Reinforced Concrete Continuous T-Beams
Publication: Journal of Composites for Construction
Volume 21, Issue 2
Abstract
In this paper, test results of six large-scale glass fiber–reinforced polymer (GFRP) RC continuous T-beams are presented. The test specimens include one steel RC beam to serve as reference, one GFRP RC beam designed to meet the serviceability criteria at the service load level calculated for the reference beam, and four GFRP RC beams designed to achieve the same theoretical ultimate load of the reference beam. The test variables included the assumed percentage of moment redistribution, the spacing of lateral reinforcement in flange, and the arrangement of shear reinforcement. The test results showed that moment redistribution from the hogging to the sagging moment region occurred in GFRP RC beams with T-sections and that a small spacing of stirrups enhanced the moment redistribution percentage. In addition, decreasing the spacing of lateral reinforcement in the flange improved the moment redistribution through enhancing the stiffness of the sagging moment region.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The authors wish to express their gratitude and sincere appreciation for the financial support received from Natural Science and Engineering Research Council of Canada (NSERC) through the Canada Research Chairs program. Also, the help received from the technical staff of McQuade Heavy Structures Laboratory of University of Manitoba is acknowledged.
References
ACI (American Concrete Institute). (2014). “Building code requirements for reinforced concrete and commentary.” ACI 318-14, Farmington Hills, MI.
Bryant, R., Bianchini, A., Rodriguez, J., and Kesler, C. (1962). “Shear strength of two-span continuous reinforced concrete beams with multiple point loading.” ACI J. Proc., 59(9), 1143–1178.
Carmo, N. F. C., and Lopes, S. M. R. (2008). “Available plastic rotation in continuous high-strength concrete beams.” Can. J. Civ. Eng., 35(10), 1152–1162.
CSA (Canadian Standard Association). (2012). “Design and construction of building structures with fibre-reinforced polymers.” CSA S806-12, Rexdale, ON, Canada.
CSA (Canadian Standard Association). (2014a). “Canadian highway bridge design code.” CSA S6-14, Rexdale, ON, Canada.
CSA (Canadian Standard Association). (2014b). “Code for the design of concrete structures for buildings.” CSA A23.3-14, Rexdale, ON, Canada.
El-Mogy, M., El-Ragaby, A., and El-Salakawy, E. (2010). “Flexural behavior of continuous FRP-reinforced concrete beams.” J. Compos. Constr., 669–680.
El-Mogy, M., El-Ragaby, A., and El-Salakawy, E. (2011). “Effect of transverse reinforcement on the flexural behavior of continuous concrete beams reinforced with FRP.” J. Compos. Constr., 672–681.
Ernst, G. C. (1958). “Moment and shear redistribution in two-span continuous reinforced concrete beams.” ACI J. Proc., 55(11), 573–589.
Grace, N. F., Soliman, A. K., Abdel-Sayed, G., and Saleh, K. R. (1998). “Behavior and ductility of simple and continuous FRP reinforced beams.” J. Compos. Constr., 186–194.
Habeeb, M. N., and Ashour, A. F. (2008). “Flexural behavior of continuous GFRP reinforced concrete beams.” J. Compos. Constr., 115–124.
Jaeger, L. G., Tadros, G., and Mufti, A. (1995). “Balanced section, ductility and deformability in concrete with FRP reinforcement.”, CAD-CAM, Technical Univ. of Nova Scotia, Halifax, NS, Canada.
Kara, I. F., and Ashour, A. F. (2013). “Moment redistribution in continuous FRP reinforced concrete beams.” Constr. Build. Mater., 49, 939–948.
Mahmoud, K., and El-Salakawy, E. (2014). “Shear strength of GFRP-reinforced concrete continuous beams with minimum transverse reinforcement.” J. Compos. Constr., .
Mahmoud, K., and El-Salakawy, E. (2015). “Effect of transverse reinforcement ratio on the shear strength of GFRP-RC continuous beams.” J. Compos. Constr., .
Matos, B., Correia, J. R., Castro, L. M. S., and Franca, P. (2011). “Structural response of hyperstatic concrete beams reinforced with GFRP bars; effect of increasing concrete confinement.” J. Compos. Struct., 94(3), 1200–1210.
Mattock, A. H. (1959). “Redistribution of design bending moments in reinforced concrete continuous beams.” ICE Proc., 13(1), 35–46.
Mostofinejad, D. (1997). “Ductility and moment redistribution in continuous FRP reinforced concrete beams.” Ph.D. thesis, Dept. of Civil and Environmental Engineering, Carleton Univ., Ottawa.
Nilson, A., Darwin, D., and Dolan, C. (2010). Design of concrete structures, 14th Ed., McGraw-Hill, New York.
Rodriguez, J. J., Bianchini, A. C., Viest, I. M., and Kesler, C. E. (1959). “Shear strength of two-span continuous reinforced concrete beams.” ACI J. Proc., 55(4), 1089–1130.
Santos, P., Laranja, G., Franca, P. M., and Correia, J. R. (2013). “Ductility and moment redistribution capacity of multi-span t-section concrete beams reinforced with GFRP bars.” Constr. Build. Mater., 49, 949–961.
Scholz, H. (1993). “Contribution to redistribution of moments in continuous reinforced concrete beams.” ACI Struct. J., 90(2), 150–155.
Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 21 • Issue 2 • April 2017
Copyright
©2016 American Society of Civil Engineers.
History
Received: Mar 26, 2016
Accepted: Jun 15, 2016
Published online: Aug 12, 2016
Discussion open until: Jan 12, 2017
Published in print: Apr 1, 2017
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.