Comparative Approach to Flexural Behavior of Reinforced Beams with GFRP, CFRP, and Steel Bars
The replacement of conventional steel bars with GFRP or CFRP is one of the main topics discussed in this paper, including the main parameters and properties of the materials. The design procedures should account for the properties and will focus on the tensile strength and modulus of elasticity. It will also consider corrosion under environmentally aggressive conditions. This paper presents an experiment on the flexural behavior of concrete beams reinforced with GFRP and CFRP bars and compares these results with theoretical analysis based on different standards such as ACI, Eurocode, and CSA. Twelve reinforced concrete beams will be tested using four-point loading. The geometrical parameters of the tested beams are 130×220×2200 mm, reinforced with different diameters for GFRP and CFRP. The reinforcement ratio and strength of concrete influence the behavior of GFRP, CFRP, and RC beams and contribute to reduce the deflection and crack width. Based on this research, the closest approximation of the experimental results is observed with ACI standards. At this stage, these bars can be used in structures without strict requirements for exceeding the Serviceability Limit State. The non-integration of tension stiffening and regression performance of cracking moment in prediction expressions imposed the differences from experimental results.
Singh, B. Sh. “Analysis and Design of FRP Reinforced Concrete Structures.” McGraw Hill Professional, 2015.
Nanni, A. “Guide for the Design and Construction of Concrete Reinforced with FRP Bars (ACI 440.1R-03).” Structures Congress 2005 (April 18, 2005). doi:10.1061/40753(171)158.
Canadian Standard Association. "CSA-S806-02, Design and Construction of Building Components with Fibre-Reinforced Polymers." Toronto, ON, Canada (2002).
CAN/CSA s6-14, “Canadian Highway Bridge Design,” Canadian Standards Association, Mississauga, ON, Canada, 2014, pp.875.
CAN/CSA S806-12, “Design and Construction of Building Structures with Fiber Reinforced Polymers,” Canadian Standards Association, Mississauga, ON, Canada, 2012.
“Fib Bulletin 3. Structural Concrete Textbook on Behaviour, Design and Performance Updated Knowledge of the CEB/FIP Model Code 1990 Volume 3.” Fib Bulletins (December 1999). doi:10.35789/fib.bull.0003.
Lee, Won K., Daniel C. Jansen, Kenneth B. Berlin, and Ian E. Cohen. "Flexural cracks in fiber-reinforced concrete beams with fiber-reinforced polymer reinforcing bars." American Concrete Institute Structural Journal 107, no. 3 (2010): 321-329.
Bank L. C., “Composites for Constructions: Structural Design with FRP Materials.” John Willey & Sons, New York, (2006).
Alsayed, Saleh Hamed. “Flexural Behaviour of Concrete Beams Reinforced with GFRP Bars.” Cement and Concrete Composites 20, no. 1 (January 1998): 1–11. doi:10.1016/s0958-9465(97)00061-9.
Faza, Salem S., and Hota VS Gangarao. "Theoretical and experimental correlation of behavior of concrete beams reinforced with fiber reinforced plastic rebars." Special Publication 138 (1993): 599-614.
Masmoudi, R., B. Benmokrane, and O. Chaallal. “Cracking Behaviour of Concrete Beams Reinforced with Fiber Reinforced Plastic Rebars.” Canadian Journal of Civil Engineering 23, no. 6 (December 1, 1996): 1172–1179. doi:10.1139/l96-926.
Arduini, M., and Nanni, A. “Parametric Study of Beams with Externally Bonded FRP Reinforcement.” ACI Structural Journal 94, no. 5 (1997): 493-501. doi:10.14359/499.
CNR-DT 2032006, “Guide for Design and Construction of Concrete Structures Reinforced with Fibre-Reinforced Polymer Bars.” National Research Council, Rome, Italy, (2006).
Kabashi, Naser, Cene Krasniqi, and Qani Kadiri. "Flexural Behaviour of the Concrete Beams Reinforced with the GFRP and Cracks Analyses." Bulletin of the Transilvania University of Braşov 10, no. 59 (2017): 1-7.
Kabashi, Naser, Cene Krasniqi, Jakob Sustersic, Arton Dautaj, Enes Krasniqi, and Hysni Morina. “Flexural Behavior and Cracks in Concrete Beams Reinforced with GFRP Bars.” International Congress on Polymers in Concrete (ICPIC 2018) (2018): 617–625. doi:10.1007/978-3-319-78175-4_79.
Khorramian, Koosha, and Pedram Sadeghian. “Experimental and Analytical Behavior of Short Concrete Columns Reinforced with GFRP Bars Under Eccentric Loading.” Engineering Structures 151 (November 2017): 761–773. doi:10.1016/j.engstruct.2017.08.064.
Zarringol, Mohammadreza, and Mohammadehsan Zarringol. “A Comparative Study on the Efficiency of CFRP and GFRP in the Improvement of Compressive Strength, Acoustic Impedance and Bracing of Filled and Hollow Concrete Columns in Different Layers and Ages.” Journal of Sustainable Development 9, no. 5 (September 27, 2016): 110. doi:10.5539/jsd.v9n5p110.
Saraswathy, T., and K. Dhanalakshmi. "Investigation of Flexural Behaviour of RCC Beams using GFRP Bars." International Journal of Scientific & Engineering Research 5, no. 1 (2014): 333-338.
Correia, João Ramôa, Fernando A. Branco, and João Ferreira. “GFRP–concrete Hybrid Cross-Sections for Floors of Buildings.” Engineering Structures 31, no. 6 (June 2009): 1331–1343. doi:10.1016/j.engstruct.2008.04.021.
Chidananda, S. H., and R. B. Khadiranaikar. "Flexural Behaviour of Concrete Beams Reinforced With GFRP Rebars." International Journal of Advance Research, Ideas and Innovations in Technology 3, no. 5 (2017): 119-128.
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