Steel and Composite Structures

  • 제21권6호
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  • Pages.1265-1285
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  • 2016
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Experimental investigation on shear capacity of RC beams with GFRP rebar & stirrups

  • Vora, Tarak P. (Department, Gujarat Technological University) ;
  • Shah, Bharat J. (Applied Mechanics Department, L. D. College of Engineering)
  • 투고 : 2016.03.24
  • 심사 : 2016.08.10
  • 발행 : 2016.08.30
⟨ 이전 논문 다음 논문 ⟩

초록

This paper presents experimental results of advanced investigation carried out on the beams reinforced with Glass Fiber Reinforced Polymer (GFRP) rebar and stirrups. Twelve beams reinforced with GFRP and one beam with steel reinforcement of size $230{\times}300{\times}2000mm$ were investigated. Longitudinal reinforcement, shear span and spacing of stirrups were the main variables to form the set. In advanced testing three types of strain gauges for steel, composite and concrete surface were applied to observe strain/stress development against the applied load. Live data were recorded from four strain gauges applied on stirrups, one at center on longitudinal reinforcement, two on the concrete surface and central deflection during the test. Although the focus of the paper was mainly on the behavior of GFRP shear reinforcement, other parallel data were observed for the completeness of the test. Design recommendations of ISIS Canada Design Manual (2007), Japan Society of Civil Engineers (1997) and American Concrete Institute (ACI-440.1R-06) were reviewed. Shear design predictions were compared with experimental results in which it was observed that all the three standards provided conservative predictions. However, ACI found most efficient compare to other two there is room to improve the efficiency of the recommendations.

키워드

참고문헌

  1. Abed, F., El-Chabib, H. and AlHamaydeh, M. (2012), "Shear characteristics of GFRP-reinforced concrete deep beams without web reinforcement", J. Reinforced Plastics Compos., 31(16), 1083-1073.
  2. ACI 318-11 (2011), Building code requirements for structural concrete and commentary, American Concrete Institute, Farmington Hills, MI, USA.
  3. ACI 440.1R-06 (2006), Guide for the design and construction of concrete reinforced with FRP bars, American Concrete Institute, Farmington Hills, MI, USA.
  4. Ahmed, E., El-Salakawy, E. and Benmokrane, B. (2010), "Shear performance of RC bridge girders reinforced with carbon FRP stirrups", J. Bridge Eng., 15(1), 44-54. DOI: 10.1061/(ASCE)BE.1943-5592.0000035
  5. Alam, M.S. and Hussein, A. (2011), "Experimental investigation on the effect of longitudinal reinforcement on shear strength of fibre reinforced polymer reinforced concrete beams", Can. J. Civil Eng., 38(3), 243-251. https://doi.org/10.1139/L10-126
  6. Alam, M.S. and Hussein, A. (2012), "Effect of member depth on shear strength of high-strength fiberreinforced polymer-reinforced concrete beams", J. Compos. Construct., 16(2), 119-126. DOI: 10.1061/(ASCE)CC.1943-5614.0000248
  7. Alam, M.S. and Hussein, A. (2013a), "Size effect on shear strength of FRP reinforced concrete beams without stirrups", J. Compos. Construct., 17(4), 507-516. DOI: 10.1061/(ASCE)CC.1943-5614.0000346
  8. Alam, M. S., and Hussein, A. (2013b), "Unified shear design equation for concrete members reinforced with fiber-reinforced polymer without stirrups", J. Compos. Construct., 17(5), 575-583. DOI: 10.1061/(ASCE)CC.1943 -5614.0000342
  9. Al-Tamimi, A., Abed, F.H. and Al-Rahmani, A. (2014), "Effects of harsh environmental exposures on the bond capacity between concrete and GFRP reinforcing bars", Adv. Concrete Construct., 2(1), 1-11. https://doi.org/10.12989/acc2014.2.1.001
  10. Altin, S., Anil, O. and Kara, M.E. (2011), "Retrofitting of shear damaged RC beams using CFRP strips", Steel Compos. Struct., Int. J., 11(3), 207-223. https://doi.org/10.12989/scs.2011.11.3.207
  11. ASCE-ACI Committee 445 on Shear and Torsion (1998), "Recent approaches to shear design of structures", J. Struct. Eng., 12(1375), 1375-1417. DOI: 10.1061/(ASCE)0733-9445(1998)124
  12. Chen, M. and Das, S. (2009), "Experimental study on repair of corroded steel beam using CFRP", Steel Compos. Struct., Int. J., 9(2), 103-118. https://doi.org/10.12989/scs.2009.9.2.103
  13. El Refai, A. and Abed, F. (2015), "Concrete contribution to shear strength of beams reinforced with basalt fiber-reinforced bars", J. Compos. Construct., 04015082-1-04015082-13. DOI: 10.1061/(ASCE)CC.1943-5614.0000648
  14. El-Sayed, A.K., El-Salakawy, E.F. and Benmokrane, B. (2006), "Shear strength of FRP-reinforced concrete beams without transverse reinforcement", ACI Struct. J., 103(2), 235-243.
  15. El-Sayed, A.K., El-Salakawy, E. and Benmokrane, B. (2007), "Mechanical and structural characterization of new carbon FRP stirrups for concrete members", J. Compos. Construct., 11(4), 352-362. https://doi.org/10.1061/(ASCE)1090-0268(2007)11:4(352)
  16. Guadagnini, M., Pilakoutas, K. and Waldron, P. (2003), "Shear performance of FRP reinforced concrete beams", J. Reinf. Plast. Compos., 22(15), 1389-1407. https://doi.org/10.1177/073168403035579
  17. Guadagnini, M., Pilakoutas, K. and Waldron, P. (2006), "Shear resistance of FRP RC beams: Experimental study", J. Compos. Constr., 10(6), 464-473. DOI: 10.1061/(ASCE)1090-0268(2006)10:6(464)
  18. Hoult, N.A., Sherwood, E.G., Bentz, E.C. and Collins, M.P. (2008), "Does the use of FRP reinforcement change the one-way shear behavior of reinforced concrete slabs", J. Compos. Construct., 12(2), 125-133. DOI: 10.1061/(ASCE)1090-0268(2008)12:2(125)
  19. Intelligent Sensing for Innovative Structures (2007), Reinforcing concrete structures with fiber reinforced polymers, ISIS Canada, University of Winnipeg, Winnipeg, MB, Canada.
  20. Jang, H., Kim, M., Cho, J. and Kim, C. (2009), "Concrete shear strength of beams reinforced with FRP bars according to flexural ratio and shear span to depth ratio", Proceedings of the 9th International Conference Fiber Reinforced Polymer for Reinforced Concrete Structures, American Concrete Institute, Sidney, Australia, July.
  21. Japan Society of Civil Engineering (1997), Recommendation for design and construction of concrete structures using continuous fiber reinforcing materials, Tokyo, Japan.
  22. Panda, K.C., Bhattacharyya, S.K. and Barai, S.V. (2012), "Shear behaviour of RC T-beams strengthened with U-wrapped GFRP sheet", Steel Compos. Struct., Int. J., 12(2), 149-166. https://doi.org/10.12989/scs.2012.12.2.149
  23. Panda, K.C., Bhattacharyya, S.K. and Barai, S.V. (2013a), "Shear strengthening effect by bonded GFRP strips and transverse steel on RC T-beams", Struct. Eng. Mech., Int. J., 47(1), 75-98. https://doi.org/10.12989/sem.2013.47.1.075
  24. Panda, K.C., Bhattacharyya, S.K. and Barai, S.V. (2013b), "Effect of transverse steel on the performance of RC T-beams strengthened in shear zone with GFRP sheet", Construct. Build. Mater., 41, 79-90. https://doi.org/10.1016/j.conbuildmat.2012.11.098
  25. Razaqpur, A.G. and Isgor, O.B. (2006), "Proposed shear design method for FRP-reinforced concrete members without stirrups", ACI Struct. J., 103(6), 93-102.
  26. Razaqpur, A.G. and Spadea, S. (2014), "Shear strength of FRP reinforced concrete members with stirrups", J. Compos. Constr., 04014025-(1-15). DOI: 10.1061/(ASCE)CC.1943-5614.0000483
  27. Steiner, S., El-Sayed, A.K., Benmokrane, B., Matta, F. and Nanni, A. (2008), "Shear behaviour of large-size beams reinforced with glass FRP bars", Proceedings of the 5th International Conference on Advanced Composite Materials in Bridges and Structures, Winnipeg, Manitoba, Canada, September.
  28. Tureyen, A.K. and Frosch, R.J. (2003), "Concrete shear strength: Another perspective", ACI Struct. J., 100(5), 609-615.
  29. Yost, J.R., Gross, S.P. and Dinehart, D.W. (2001), "Shear strength of normal strength concrete beams reinforced with deformed GFRP bars", J. Compos. Construct., 5(4), 268-275. https://doi.org/10.1061/(ASCE)1090-0268(2001)5:4(268)

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