Steel and Composite Structures

  • 제12권2호
  • /
  • Pages.149-166
  • /
  • 2012
  • /
  • 1229-9367(pISSN)
  • /
  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Shear behaviour of RC T-beams strengthened with U-wrapped GFRP sheet

  • Panda, K.C. (Department of Civil Engineering, ITER, SOA University) ;
  • Bhattacharyya, S.K. (CSIR-Central Building Research Institute) ;
  • Barai, S.V. (Department of Civil Engineering, IIT Kharagpur)
  • 투고 : 2010.08.25
  • 심사 : 2011.11.25
  • 발행 : 2012.02.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper presents an experimental investigation on the performance of 2.5 m long reinforced concrete (RC) T-beams strengthened in shear using epoxy bonded glass fibre fabric. Eighteen (18) full scale, simply supported RC T-beams are tested. Nine beams are used as control beam specimens with three different stirrups spacing without glass fibre reinforced polymer (GFRP) sheet and rest nine beams are strengthened in shear with one, two, and three layers of GFRP sheet in the form of U-jacket around the web of T-beams for each type of stirrup spacing. The objective of this study is to evaluate the effectiveness, the cracking pattern and modes of failure of the GFRP strengthened RC T-beams. The test result indicates that for RC T-beams strengthened in shear with U-jacketed GFRP sheets, increase the load carrying capacity by 10-46%.

키워드

참고문헌

  1. American Concrete Institute (ACI). (2002), "Building code requirements for reinforced concrete (ACI 318-02) and commentary", 318RM-02, Detroit.
  2. ACI 440.2R-02. (2002), "Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures", ACI Committee 440, Farmington Hills, Michigan, 45 p.
  3. Al-Sulaimani, G.J., Sharif, A., Basunbul, I.A., Baluch, M.H. and Ghaleb, B.N. (1994), "Shear repair for reinforced concrete by fiberglass plate bonding", ACI Struct. J., 91(3), 458-464.
  4. Adhikary, B.B., Mutsuyoshi, H. and Ashrof, M. (2004), "Shear strengthening of reinforced concrete beams using fiber reinforced polymer sheets with bonded anchorage", ACI Struct. J., 101(5), 660-668.
  5. Berset, J.D. (1992), "Strengthening of reinforced concrete beams for shear using FRP composites", MS thesis, Dept. of Civil and Environmental engineering, MIT
  6. Bousselham, A. and Chaallal, O. (2004), "Shear strengthening reinforced concrete beams with fiber-reinforced polymer: assessment of influencing parameters and required research", ACI Struct. J., 101(2), 219-227.
  7. Bousselham, A. and Chaallal, O. (2006), "Effect of transverse steel and shear span of the performance of RC beams strengthened in shear with CFRP", Composites: Part B, 37(1), 37-46. https://doi.org/10.1016/j.compositesb.2005.05.012
  8. Bousselham, A. and Chaallal, O. (2008), "Mechanisms of shear resistance of concrete beams strengthened in shear with externally bonded FRP", J. Compos. Constr., 12(5), 499-512. https://doi.org/10.1061/(ASCE)1090-0268(2008)12:5(499)
  9. Cao, S.Y., Chen, J.F., Teng, J.G., Hao, Z. and Chen, J. (2005), "Debonding in RC beams shear strengthened with complete FRP wraps", J. Compos. Constr., 9(5), 417-428. https://doi.org/10.1061/(ASCE)1090-0268(2005)9:5(417)
  10. Chaallal, O., Nollet, M.J. and Perraton, D. (1998), "Shear strengthening of RC beams by externally bonded side CFRP strips", J. Compos. Constr., 2(2), 111-113. https://doi.org/10.1061/(ASCE)1090-0268(1998)2:2(111)
  11. Chaallal, O., Shahawy, M., and Hassan, M. (2002), "Performance of reinforced concrete T-Girders strengthened in shear with carbon fiber-reinforced polymer fabric", ACI Struct. J., 99(3), 335-343.
  12. Chajes, M.J., Januszka, T.F., Mertz, D.R., Thomson, T.A., Jr. and Finch, W.W., Jr. (1995), "Shear strengthening of reinforced concrete beams using externally applied composite fabrics", ACI Struct. J., 92(3), 295-303.
  13. Chen, J.F. and Teng, J.G. (2003a), "Shear capacity of FRP-strengthened RC beams: FRP debonding", Constr. Build. Mater., 17(1), 27-41. https://doi.org/10.1016/S0950-0618(02)00091-0
  14. Chen, J.F. and Teng, J.G. (2003b), "Shear capacity of fiber-reinforced polymer strengthened RC beams: Fiber reinforced polymer rupture", J. Struct. Engrg., 129(5), 615-625. https://doi.org/10.1061/(ASCE)0733-9445(2003)129:5(615)
  15. Deniaud, C. and Cheng, J.J.R. (2001), "Shear behavior of reinforced concrete T-beams with externally bonded fiber-reinforced polymer sheets", ACI Struct. J., 98(3), 386-394.
  16. Deniaud, C. and Cheng, J.J.R. (2003), "Reinforced concrete T-beams strengthened in shear with fiber reinforced polymer sheets", J. Compos. Constr., 7(4), 302-310. https://doi.org/10.1061/(ASCE)1090-0268(2003)7:4(302)
  17. Egilmez. O. O. and Yormaz. D. (2011), "Cyclic testing of steel I-beams reinforced with GFRP", Steel and Compos. Struct. An International Journal, 11(2).
  18. Indian Standard (IS). (2000), "Plain and reinforce concrete code of practice IS 456:2000", India, 100p.
  19. Khalifa, A., Gold, W.J., Nanni, A. and Aziz, A. (1998), "Contribution of externally bonded FRP to shear capacity of RC flexural members", J. Compos. Constr., 2(4), 195-201. https://doi.org/10.1061/(ASCE)1090-0268(1998)2:4(195)
  20. Khalifa, A. and Nanni, A. (2000), "Improving shear capacity of existing RC T-section beams using CFRP composites", Cement and Concrete Composites, 22(3), 165-174. https://doi.org/10.1016/S0958-9465(99)00051-7
  21. Khalifa, A.and Nanni, A. (2002), "Rehabilitation of rectangular simply supported RC beams with shear deficiencies using CFRP composites", Construction and Building Materials, 16(3), 135-146. https://doi.org/10.1016/S0950-0618(02)00002-8
  22. Li, A., Assih, J., and Delmas, Y. (2001), "Shear strengthening of RC beams with externally bonded CFRP sheets", J. Struct. Engrg., 127(4), 374-380. https://doi.org/10.1061/(ASCE)0733-9445(2001)127:4(374)
  23. Li, A., Diagana, C. and Delmas, Y. (2002), "Shear strengthening effect by bonded composite fabrics on RC beams", Composites: Part B, 33(3), 225-239. https://doi.org/10.1016/S1359-8368(02)00003-3
  24. Malek, A.M. and Saadatmanesh, H. (1998), "Ultimate shear capacity of reinforced concrete beams strengthened with web-bonded Fiver-reinforced plastic plates", ACI Struct. J., 95(4), 391-399.
  25. Micelli, F., Anniah, R.H. and Nanni, A. (2002), "Strengthening of short shear span reinforced concrete T joists with fiber reinforced plastic composites", J. Compos. Constr., 6(4), 264-271. https://doi.org/10.1061/(ASCE)1090-0268(2002)6:4(264)
  26. Mosallam, A.S. and Banerjee, S. (2007), "Shear enhancement of reinforced concrete beams strengthened with FRP composite laminates", Composites: Part B, 38(5-6), 781-793. https://doi.org/10.1016/j.compositesb.2006.10.002
  27. Noris, T., Saadatmanesh, H. and Ehsani, M.R. (1997), "Shear and flexural strengthening of RC beams with carbon fiber sheets", J. Struct. Engrg., 123(7), 903-911. https://doi.org/10.1061/(ASCE)0733-9445(1997)123:7(903)
  28. Pellegrino, C. and Modena, C. (2002), "Fiber reinforced polymer shear strengthening of reinforced concrete beams with transverse steel reinforcement", J. Compos. Constr., 6(2), 104-111. https://doi.org/10.1061/(ASCE)1090-0268(2002)6:2(104)
  29. Taljsten, B., Elfgren, L. (2000), "Strengthening concrete beams for shear using CFRP-materials: evaluation of different application methods", Composites Part B: Engineering, 31(2), 87-96. https://doi.org/10.1016/S1359-8368(99)00077-3
  30. Taljsten, B. (2003), "Strengthening concrete beams for shear with CFRP sheets", Constr. Build. Mater., 17(1), 15-26. https://doi.org/10.1016/S0950-0618(02)00088-0
  31. Triantafillou, T.C. (1998), "Shear strengthening of reinforced concrete beams using epoxy bonded FRP composites", ACI Struct. J., 95(2), 107-115.
  32. Triantafillou, T.C. and Antonopolous, C.P. (2000), "Design of concrete flexural members strengthened in shear with FRP", J. Compos. Constr., 4(4), 198-205. https://doi.org/10.1061/(ASCE)1090-0268(2000)4:4(198)
  33. Zhang, Z., and Hsu, C.T.T. (2005), "Shear strengthening of reinforced concrete beams using carbon-fiber-reinforced polymer laminates", J. Compos. Constr., 9(2), 158-169. https://doi.org/10.1061/(ASCE)1090-0268(2005)9:2(158)

피인용 문헌

  1. Shear strengthening of reinforced concrete beams with rectangular web openings by FRP Composites vol.2, pp.4, 2014, https://doi.org/10.12989/acc.2014.2.4.281
  2. Experimental study on flexural behavior of splicing concrete-filled GFRP tubular composite members connected with steel bars vol.18, pp.5, 2015, https://doi.org/10.12989/scs.2015.18.5.1129
  3. Strengthening of RC beams with prefabricated RC U cross-sectional plates vol.49, pp.6, 2014, https://doi.org/10.12989/sem.2014.49.6.673
  4. Experimental investigation on shear capacity of RC beams with GFRP rebar & stirrups vol.21, pp.6, 2016, https://doi.org/10.12989/scs.2016.21.6.1265
  5. Study on seismic performance of connection joint between prefabricated prestressed concrete beams and high strength reinforcement-confined concrete columns vol.21, pp.2, 2016, https://doi.org/10.12989/scs.2016.21.2.343
  6. Shear strengthening effect by bonded GFRP strips and transverse steel on RC T-beams vol.47, pp.1, 2013, https://doi.org/10.12989/sem.2013.47.1.075
  7. Energy absorption of reinforced concrete deep beams strengthened with CFRP sheet vol.16, pp.5, 2014, https://doi.org/10.12989/scs.2014.16.5.481
  8. Investigation of interface response of reinforced concrete columns retrofitted with composites vol.22, pp.6, 2012, https://doi.org/10.12989/scs.2016.22.6.1337
  9. Numerical analysis of the shear behavior of FRP-strengthened continuous RC beams having web openings vol.227, pp.None, 2021, https://doi.org/10.1016/j.engstruct.2020.111451
  10. Experimental analysis of shear deficient reinforced concrete beams strengthened by glass fiber strip composites and mechanical stitches vol.40, pp.2, 2012, https://doi.org/10.12989/scs.2021.40.2.267