Shear Strengthening of RC Deep Beam Using Externally Bonded GFRP Fabrics

Original Contribution
  • 18 Downloads

Abstract

This work presents the experimental investigation of RC deep beams wrapped with externally bonded Glass Fibre Reinforced Polymer (GFRP) fabrics in order to study the Load versus deflection behavior, cracking pattern, failure modes and ultimate shear strength. A total number of five deep beams have been casted, which is designed with conventional steel reinforcement as per IS: 456 (Indian standard plain and reinforced concrete—code for practice, Bureau of Indian Standards, New Delhi, 2000). The spans to depth ratio for all RC deep beams have been kept less than 2 as per the above specification. Out of five RC deep beams, one without retrofitting serves as a reference beam and the rest four have been wrapped with GFRP fabrics in multiple layers and tested with two point loading condition. The first cracking load, ultimate load and the shear contribution of GFRP to the deep beams have been observed. A critical discussion is made with respect to the enhancement of the strength, behaviour and performance of retrofitted deep beams in comparison to the deep beam without GFRP in order to explore the potential use of GFRP for strengthening the RC deep beams. Test results have demonstrated that the deep beams retrofitted with GFRP shows a slower development of the diagonal cracks and improves shear carrying capacity of the RC deep beam. A comparative study of the experimental results with the theoretical ones predicted by various researchers available in the literatures has also been presented. It is observed that the ultimate load of the beams retrofitted with GFRP fabrics increases with increase of number of GFRP layers up to a specific number of layers, i.e. 3 layers, beyond which it decreases.

Keywords

Failure GFRP fabrics RC deep beams Retrofitting Shear strength 

References

  1. 1.
    IS: 456, Indian standard plain and reinforced concrete—code for practice (Bureau of Indian Standards, New Delhi, 2000)Google Scholar
  2. 2.
    K. Uji, Trans. Jpn. Concr. Inst. 14(253), 253–266 (1992)Google Scholar
  3. 3.
    M.J. Chajes, T.F. Januszka, D.R. Mertz, T.A. Thomson, W.W. Finch, ACI Struct. J. 92(3), 295–303 (1995)Google Scholar
  4. 4.
    O. Challal, M.J. Nollet, D. Perraton, J. Compos. Constr. 2(2), 111–113 (1998)CrossRefGoogle Scholar
  5. 5.
    A. Khalifa, W.J. Gold, A. Nanni, A.A. MI, J. Compos. Constr. 2(4), 195–202 (1998)CrossRefGoogle Scholar
  6. 6.
    Y. Mitsui, K. Murakami, K. Takeda, H. Sakai, Compos. Interfaces 5(4), 285–295 (1997)CrossRefGoogle Scholar
  7. 7.
    T. Triantafillou, ACI Struct. J. 95(2), 107–115 (1998)Google Scholar
  8. 8.
    F. Watanabe, J.Y. Lee, Struct. J. 95(6), 749–757 (1998)Google Scholar
  9. 9.
    A. Khalifa, A. Nanni, Cem. Concr. Compos. 22(3), 165–174 (2000)CrossRefGoogle Scholar
  10. 10.
    B. Taljsten, L. Elfgren, Compos. Part B Eng. 3(2), 87–96 (2000)CrossRefGoogle Scholar
  11. 11.
    T.C. Triantafillou, C.P. Antonopoulos, J. Compos. Constr. 4(4), 198–205 (2000)CrossRefGoogle Scholar
  12. 12.
    A. Li, C. Diagana, Y. Delmas, Eng. Struct. 23(10), 1212–1220 (2001)CrossRefGoogle Scholar
  13. 13.
    J.F. Chen, J.G. Teng, Constr. Build. Mater. 17(1), 27–41 (2003)CrossRefGoogle Scholar
  14. 14.
    C. Diagana, A. Li, B. Gedalia, Y. Delmas, Eng. Struct. 25, 507–516 (2003)CrossRefGoogle Scholar
  15. 15.
    B. Taljsten, Constr. Build. Mater. 17(1), 15–26 (2003)CrossRefGoogle Scholar
  16. 16.
    B.B. Adhikary, H. Mutsuyoshi, J. Compos. Constr. 8(3), 258–264 (2004)CrossRefGoogle Scholar
  17. 17.
    B.B. Adhikary, H. Mutsuyoshi, M. Ashraf, Struct. J. 101(5), 660–668 (2004)Google Scholar
  18. 18.
    A. Bousselham, O. Chaallal, Struct. J. 101(2), 219–227 (2004)Google Scholar
  19. 19.
    C. Deniaud, J.R. Cheng, J. Compos. Constr. 8(5), 425–433 (2004)CrossRefGoogle Scholar
  20. 20.
    S.Y. Cao, J.F. Chen, J.G. Teng, Z. Hao, J. Chen, J. Compos. Constr. 9(5), 417–428 (2005)CrossRefGoogle Scholar
  21. 21.
    Z. Zhang, C.T.T. Hsu, J. Compos. Constr. 9(2), 158–169 (2005)CrossRefGoogle Scholar
  22. 22.
    A.S. Mosallam, S. Banerjee, Compos. Part B Eng. 38(5), 781–793 (2007)CrossRefGoogle Scholar
  23. 23.
    E. Grande, M. Imbimbo, A. Rasulo, J. Compos. Constr. 13(5), 405–414 (2009)CrossRefGoogle Scholar
  24. 24.
    G.M. Chen, J.G. Teng, J.F. Chen, J. Compos. Constr. 17(1), 50–66 (2012)MathSciNetCrossRefGoogle Scholar
  25. 25.
    A. Mofidi, O. Chaallal, J. Compos. Constr. 15(1), 62–74 (2012)CrossRefGoogle Scholar
  26. 26.
    Y. Zhou, M. Gou, F. Zhang, S. Zhang, D. Wang, Mater. Des. 50, 130–139 (2013)CrossRefGoogle Scholar
  27. 27.
    R.A. Hawileh, H.A. Rasheed, J.A. Abdalla, A.K. Al-Tamimi, Mater. Des. 53, 972–982 (2014)CrossRefGoogle Scholar
  28. 28.
    D. Baggio, K. Soudki, M. Noel, Constr. Build. Mater. 66, 634–644 (2014)CrossRefGoogle Scholar
  29. 29.
    T. Skuturna, J. Valivonis, Constr. Build. Mater. 50, 577–583 (2014)CrossRefGoogle Scholar
  30. 30.
    A.K. El-Sayed, Compos. Part B Eng. 58, 422–429 (2014)CrossRefGoogle Scholar
  31. 31.
    Z.C. Tetta, L.N. Koutas, D.A. Bournas, Compos. Part B Eng. 77, 338–348 (2015)CrossRefGoogle Scholar
  32. 32.
    Z. Zhang, C. Hsu, J. Moren, J. Compos. Constr. 8(5), 403–414 (2004)CrossRefGoogle Scholar
  33. 33.
    M. Islam, M. Mansur, M. Maalej, Cem. Concr. Compos. 27(3), 413–420 (2005)CrossRefGoogle Scholar
  34. 34.
    S. Park, R.S. Aboutaha, J. Struct. Eng. 135(6), 632–643 (2009)CrossRefGoogle Scholar
  35. 35.
    H.K. Lee, S.H. Cheong, S.K. Ha, C.G. Lee, Compos. Struct. 93(2), 911–922 (2011)CrossRefGoogle Scholar
  36. 36.
    ACI Committee 318 (American Concrete Institute, Detroit, MI, 1999)Google Scholar
  37. 37.
    ACI Committee 440.2R-08 (American Concrete Institute, Farmington Hills, MI, 2002)Google Scholar
  38. 38.
    M. Panjehpour, K.C. Hwa, Yen, L.V. Sci. World J. 2014, 1–9 (2014)Google Scholar
  39. 39.
    M.A. Javed, M. Irfan, S. Khalid, Y. Chen, S. Ahmed, KSCE J. Civ. Eng. 20(7), 1–9 (2016)CrossRefGoogle Scholar
  40. 40.
    T.E. Maaddawy, S. Sherif, Compos. Struct. 89(1), 60–69 (2009)CrossRefGoogle Scholar
  41. 41.
    R.A. Hawileh, T.A. El-Maaddawy, Z.N. Mohammad, Mater. Des. 42, 378–387 (2012)CrossRefGoogle Scholar
  42. 42.
    T. Maeda, Y. Asano, Y. Sato, T. Ueda, Y. Kakuta, in Proceedings of the Third Symposium, vol. 1 (1997), pp. 279–286Google Scholar
  43. 43.
    T.C. Triantafillou, in Proceedings of the Third Symposium, vol. 1 (1997), pp. 523–530Google Scholar
  44. 44.
    IS: 10262, Indian standard concrete mix proportioning—guidelines (Bureau of Indian Standards, New Delhi, 2009)Google Scholar

Copyright information

© The Institution of Engineers (India) 2018

Authors and Affiliations

  1. 1.Department of Civil EngineeringVeer Surendra Sai University of Technology, BurlaSambalpurIndia

Personalised recommendations