THEORETICAL MODEL CONTRIBUTION OF CFRP LAMINATES ON SHEAR STRENGTHENING AND REPAIR OF RC BEAMS

Authors

  • Abdul Aziz Abdul Samad Department of Structural and Materials Engineering, Faculty of Civil and Environmental Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Batu Pahat, Johor, Malaysia
  • Noorwirdawati Ali Department of Structural and Materials Engineering, Faculty of Civil and Environmental Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Batu Pahat, Johor, Malaysia
  • Noridah Mohamad Jamilus Research Centre, Faculty Civil and Environmental Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Batu Pahat, Malaysia
  • Josef Hadipramana Jamilus Research Centre, Faculty Civil and Environmental Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Batu Pahat, Malaysia
  • Mohamad Zulkhairi Mohd Bosro Department of Structural and Materials Engineering, Faculty of Civil and Environmental Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Batu Pahat, Johor, Malaysia

DOI:

https://doi.org/10.11113/jt.v78.8244

Keywords:

CFRP, shear strengthening and repair, RC beam

Abstract

The purpose of this case study is to review the effect and contribution of CFRP laminates on shear strengthening and repair of reinforced concrete beams. To date, the method is yet to become a mainstream application due to number of economical and design related issues. The current experimental work consists of one control beam and four beams wrapped with CFRP laminates [5]. The CFRP configuration are either fully wrapped or U shaped with orientation at 0°/90° and 45°/135°. This case study then identifies several theoretical model developed by Triantafillou [6]; Triantafillou and Antonopolous [7]; Khalifa and Nanni [8][9]; Adhikary et al. [10]; Carolin and Täljsten [11], and Täljsten [12] along with three design codes i.e. ACI 440 [2], BCS [3] and fib [4] towards predicing the shear contribution of CFRP laminate. The results for both experimental and theoretical value were then compared in term of mean percentage difference to select the best theoretical shear prediction value. 

References

J. F. Chen & J. G. Teng. 2003. Shear Capacity of FRP-strengthened RC Beams: FRP de-bonding. Construction and Building Materials. 17: 27-41.

ACI Committee. 2008. Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures.

BCS, British Concrete Society. 2000. Design Guidance for Strengthening Concrete Structures Using Fibre Composite Materials. Technical Rep. No. 55, The Concrete Society, Berkshire.

fib 2001. Externally bonded FRP reinforcement for RC structures. Int. Federation for Structural Concrete, Switzerland.

Ali, N., Samad, A. A. A., Mohamad, N., Jayaprakash, J. 2013. Shear Behaviour Of Pre-Cracked Continuous Beam Repaired Using Externally Bonded CFRP Strips. Procedia Engineering. 53: 129-144.

Triantafillou, T. C. 1998. Shear Strengthening Of Reinforced Concrete Beams Using Epoxy-Bonded FRP Composites. ACI Structural Journal. 95(2).

Triantafillou, T.C and Antonopolous C.P. 2000. Design Of Concrete Of Concrete Flexural Members Strengthened In Shear With FRP. Journal of Composites for Construction. 198-205.

Khalifa, A. and Nanni, A. 2000. Improving Shear Capacity of Existing RC T-Section Beams using CFRP Composites. Cement and Concrete Composites. 22: 165-174.

Khalifa, A. and Nanni, A. 2002. Rehabilitation of Rectangular Simply Supported RC Beams with Shear Deficiencies using CFRP Composites. Construction and Building Materials. 16: 135-146.

Adhikary, B.B., Mutsuyoshi, H., and Asyraf, M. 2004. Shear Strengthening of Reinforced Concrete Beams using Fiber Reinforced Polymer Sheets with Bonded Anchorage. ACI Structural Journal. 660-668.

Carolin, A., and Täljsten, B. 2005. Theoretical Study Of Strengthening For Increased Shear Bearing Capacity. J. Compos. Constr. 9(6): 497-506.

Täljsten, B. 2003. Strengthening Concrete Beams for Shear with CFRP Sheets. Construction and Building Materials. 17: 15-16.

Downloads

Published

2016-04-18

Issue

Vol. 78 No. 5: May 2016

Section

Science and Engineering

License

Copyright of articles that appear in Jurnal Teknologi belongs exclusively to Penerbit Universiti Teknologi Malaysia (Penerbit UTM Press). This copyright covers the rights to reproduce the article, including reprints, electronic reproductions, or any other reproductions of similar nature.

How to Cite

THEORETICAL MODEL CONTRIBUTION OF CFRP LAMINATES ON SHEAR STRENGTHENING AND REPAIR OF RC BEAMS. (2016). Jurnal Teknologi, 78(5). https://doi.org/10.11113/jt.v78.8244