Hybrid Fibre Reinforced Concrete Beams Strengthened with Externally bonded GFRP Laminates
Keywords:
ANSYS, Ductility, FRP, Polyolefin fibre, Steel fibreAbstract
This paper presents the results of experimental study conducted to examine the effectiveness of Glass Fibre Reinforced Polymer (GFRP) laminates on the performance of Hybrid fibre reinforced concrete beams. For the experimental investigation, a total of four beams of size 150mm x 250mm in cross section with a total length of 3000mm were cast and tested. Two beams were strengthened with Unidirectional Cloth Glass Fibre Reinforced Polymer (UDCGFRP) of 3mm and 5mm thickness. One beam served as base line specimen and the other was cast with 1% hybrid fibre volume fraction (80% of steel fibre and 20% of polyolefin fibre). All the beams specimens were subjected to four-point bending in a loading frame. The results show that GFRP strengthened hybrid fibre reinforced concrete beams exhibit improved performance in terms of load capacity, deformation capacity and ductility. The beams were also modeled using finite element software (ANSYS). The numerical results showed good agreement with the experimental results.References
Spadea, G., Bencardino, F. and Swamy, R.N., “Strength and Ductility of Reinforced Concrete Beams Externally Reinforced with Carbon Fiber Fabricâ€, ACI Structural Journal, vol. 99, no.2, pp. 163 -171, 2006.
Fanning, P.J. and Kelly, O., “Ultimate Response of RC Beams Strengthened with CFRP Platesâ€, Journal of Composites for Construction, vol. 5, no.2, 122-127, 2001.
Toutanji, H., Zhao, L., and Zhang, Y., “Flexural behaviour of reinforced concrete beams externally strengthened with CFRP sheets bonded with an inorganic matrixâ€, Engineering Structures, Vol. 28, 557 -566, 2006.
Banthia, N. and Soleimani, S.M., “Flexural Response of Hybrid Fiber Reinforced Cementitious Compositesâ€, ACI Materials Journal, vol. 102, no.5, 382-389, 2005.
Eswari.S, P.N. Raghunath and K. Suguna., “Ductility Performance of Hybrid Fibre Reinforced Concreteâ€, American Journal of Applied Sciences vol. 5, no.9, 1257-1262, 2008.
Wu Yao, Jie Li and Keru Wu, “Mechanical properties of hybrid fiber reinforced concrete at low fiber volume fractionâ€, Cement and Concrete Research, Elsevier Journals Ltd., Vol.33, 27-30, 2003.
Li-juan L, Yong-chang G, Pei-yan H, Feng L, Jiang Z., “Test analysis for FRC beams strengthened with externally bonded FRP sheets, Construction and Building Material, vol. 23, no.6, 2394-2401, 2009.
Yin J, Z.S Wu, “Structural Performances of Short Steel-Fiber Reinforced Concrete Beams with Externally Bonded FRP Sheetsâ€, Construction and Building Materials, vol. 17, no.1, 463-470, 2003.
Arduini. M, A. D. Tommaso and A. Nannim, “Brittle Failure in FRP Plate and Sheet Bonded Beamsâ€, ACI Structural Journal, vol. 94, no. 4, 363-370, 1997.
Raghunath, P.N., Suguna, K. and Nagardjane, V., “Externally Bonded FRP for Strengthening Concrete Beamsâ€, Proceedings of the 10th International Conference on Inspection, Appraisal, Repairs and Maintenance of Structures, Hong Kong, 329 – 336, 2006.
Kachlakev.D, T. Miller, S. Yim, K. Chansawat and T. Potisuk, “Finite Element Modeling of Reinforced Concrete Structures Strengthening with FRP Laminatesâ€, Special Report SP316, Oregon Department Of Transportation, USA, 2001.
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