Steel Fibre Reinforced Concrete Beams with Externally Bonded FRP Laminates

R. Rajeshguna, K. Suguna, P. N. Raghunath


This paper presents regression equations for predicting the performance characteristics of steel fibre reinforced concrete beams strengthened with glass fibre reinforced polymers (GFRP) laminates. A total of four beams of dimension 150mm x 250mm x 3000mm were cast and tested to study the effectiveness of GFRP on steel fibre reinforced concrete beams. A fibre volume fraction of 1% was used in this study. Beams were strengthened with UDCGFRP laminates of 3mm and 5mm thickness. All the beams were subjected to two-point loading and tested upto failure. Deflections were measured through appropriate instrumentation at all stages of loading. The GFRP strengthened SFRC beams exhibit increased strength and composite action until failure.


GFRP, Regression analysis, SFRC, Strengthening.

Full Text:



Alberto Meda, Fausto Minelli and Giovanni A Plizzari, “Flexural Behavior of RC Beams in Fiber Reinforced Concrete”, Composites: Part B 43, Elsevier Journals Pvt. Ltd., 2012.

Song P.S. and Hwang S, “Mechanical properties of high-strength steel fiber reinforced concrete”, Construction and Building Materials, pp. 669-676, 2004.

Li Lj, Guo YC, Liu F, Bungey JH, “An experimental and numerical study of the effect of thickness and length of CFRP on performance of repaired reinforced concrete beam”, Construction Building Materials, vol. 20, pp. 901-909, 2005.

Fatih Altun , Tefaruk Haktanir, Kamura Ari., “Effects of steel fiber addition on mechanical properties of concrete and RC beams”, Construction and Building Materials, vol. 21, pp. 654–661.

Yin J, Z.S Wu, “Structural Performances of Short Steel-Fiber Reinforced Concrete Beams with Externally Bonded FRP Sheets”, Construction and Building Materials, vol. 17, no. 01, pp. 463-470, 2003.

Lijuan 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, pp. 2394-2401, 2009.

H. Yang, C. Joh, and B. S. Kim., “Flexural strength of ultra high strength concrete beams reinforced with steel fibers”, Procedia Engineering 14, pp. 793–796, 2011.


  • There are currently no refbacks.

Copyright (c)