Torsional Strengthening of RC Beams with CFRP Wrap

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Khalaf Ibrahem Mohammad
Bayar Jaafar Al-Sulayfani

Abstract

Many studies have been performed in recent years on strengthening RC (reinforced concrete) beams in shear and bending using FRP (Fiber Reinforced Polymer) wraps and laminates. Torsional strengthening, however, has not attracted as much attention. The current study on the torsional strengthening of reinforced concrete beams was performed on reinforced concrete beams wrapped by CFRP (Carbon Fiber Reinforced Polymer). Several different configurations were used for the CFRP and the torque-twist angle paths of the beams were recorded to failure. The failure modes and the increase in the torsional strengths are presented in this paper.

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References

A. Khalifa, W.J. Gold, A. Nanni,and A.MI.Aziz, “Contribution ofexternally bonded FRP to shearcapacity of flexural members”,ASCE Journal of Composites for Construction, Vol. 2, No.4, pp. 195–203, 1998. DOI: https://doi.org/10.1061/(ASCE)1090-0268(1998)2:4(195)

T.C.Triantafillou, “Shearstrengthening of concrete members using composites non-Metallic (FRP) reinforcement for concretestructures”, Proceedings of the thirdsymposium, Japan, 1, pp. 523–530, 1997.

A. Ghobarah, M. Ghorbel, and S.Chidiac, “Upgrading torsionalresistance of RC beams using FRP”,ASCE, Journal of Composites for Construction, Vol. 6, No. 4, pp. 257- 263, 2002. DOI: https://doi.org/10.1061/(ASCE)1090-0268(2002)6:4(257)

P. R. Salom, J. Gergely, and D. T.Young, “Torsional Strengthening ofSpandrel Beams with Fiber-Reinforced Polymer Laminates” ASCE, Journal of Composite for Construction, , Vol. 8, No. 2, pp. 157-162, 2004. DOI: https://doi.org/10.1061/(ASCE)1090-0268(2004)8:2(157)

A.K.Y, Hii and R. Al-Mahaidi,”Experimental Investigation on torsional Behavior of Solid and Box-Section RC Beams Strengthened with CFRP using Photogrammetry,” ASCE Journal of Composites for Construction, Vol. 10, No. 4, pp. 321-329, 2006. DOI: https://doi.org/10.1061/(ASCE)1090-0268(2006)10:4(321)

M. Ameli, H. R., Ronagh, and P. F.Dux, “Behavior of FRP strengthened Reinforced concrete beams under Torsion,” ASCE Journal of Composites for Construction, Vol. 11, No. 2, pp. 192-200, 2007. DOI: https://doi.org/10.1061/(ASCE)1090-0268(2007)11:2(192)

M.R., Mohammadizadeh, M.J. Fadaee, and H.R. Ronagh,“Improving Torsional Behaviour of Reinforced Concrete Beams Strengthened with Carbon FiberReinforced Polymer Composite,” Iranian Polymer Journal, Vol.18, No.4, pp. 315-327, 2009.

ACI 318-08, “Building Code Requirements for Structural Concrete (318-08) and Commentary (318R-08),” American Concrete Institute, Farmington Hills, MI., 2008.

Sika Company, ”Product Data Sheets,” Istanbul, Turkey, 2009,www.sika.com.tr.

J. K. Wight, and J. G MacGregor, “Reinforced Concrete: Mechanics and Design,” 5th edition, Pearson Prentice Hall, New Jersey, U.S.A., 2009.

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