Steel and Composite Structures

  • 제25권1호
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  • Pages.35-43
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  • 2017
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Structural behaviors of notched steel beams strengthened using CFRP strips

  • Yousefi, Omid (Department of Civil Engineering, Zahedan Branch, Islamic Azad University) ;
  • Narmashiri, Kambiz (Department of Civil Engineering, Zahedan Branch, Islamic Azad University) ;
  • Ghaemdoust, Mohammad Reza (Department of Civil Engineering, Zahedan Branch, Islamic Azad University)
  • 투고 : 2016.09.14
  • 심사 : 2017.06.04
  • 발행 : 2017.09.20
⟨ 이전 논문 다음 논문 ⟩

초록

This paper presents the findings of experimental and numerical investigations on failure analysis and structural behavior of notched steel I-beams reinforced by bonded Carbon Fiber Reinforced Polymer (CFRP) plates under static load. To find solutions for preventing or delaying the failures, understanding the CFRP failure modes is beneficial. One non-strengthened control beam and four specimens with different deficiencies (one side and two sides) on flexural flanges in both experimental test and simulation were studied. Two additional notched beams were investigated just numerically. In the experimental test, four-point bending method with static gradual loading was employed. To simulate the specimens, ABAQUS software in full three dimensional (3D) case and non-linear analysis method was applied. The results show that the CFRP failure modes in strengthening of deficient steel I-beams include end-debonding, below point load debonding, splitting and delamination. Strengthening schedule is important to the occurrences and sequences of CFRP failure modes. Additionally, application of CFRP plates in the deficiency region prevents crack propagation and brittle failure.

키워드

과제정보

연구 과제 주관 기관 : Islamic Azad University

참고문헌

  1. Ammar, N. (1996), "Rehabilitation of steel bridge girders with graphite pultrusion", CCM Research Report; University of Delaware, Newark, DE, USA.
  2. Al-Emrani, M. and Kliger, R. (2006), "Experimental and numerical investigation of the behaviour and strength of composite steel-CFRP members", Adv. Struct. Eng., 9(6), 819831.
  3. Colombi, P. (2005), "Plasticity induced fatigue crack growth retardation model for steel elements by composite patch", Theor. Appl. Fract. Mech., 43(1), 63-76. https://doi.org/10.1016/j.tafmec.2004.12.003
  4. Colombi, P. (2006), "Reinforcement delamination of metallic beams strengthened by FRP strips: fracture mechanics based approach", Eng. Fract., 73(14), 1980-1995. https://doi.org/10.1016/j.engfracmech.2006.03.011
  5. Dawood, M., Rizkalla, S. and Sumner, E. (2007), "Fatigue and overloading behaviour of steel concrete flexural members strengthened with high modulus CFRP materials", J. Compos. Construc., 11(6), 659-669. https://doi.org/10.1061/(ASCE)1090-0268(2007)11:6(659)
  6. Edberg, W., Mertz, D. and Gillespie, J.J. (1996), "Rehabilitation of steel beams using composite materials", Proceedings of ASCE Fourth Materials Engineering Conference.
  7. Ghaemdoust, M.R., Narmashiri, K. and Yousefi, O. (2016), "Structural behaviors of deficient steel SHS short columns strengthened using CFRP", Construct. Build. Mater., 126, 10021011.
  8. Ghafoori, E., Motavalli, M., Botsis, J., Herwig, A. and Galli, M. (2012), "Fatigue strengthening of damaged metallic beams using prestressed unbonded and bonded CFRP plates", Int. J. Fatig., 44, 303-315. https://doi.org/10.1016/j.ijfatigue.2012.03.006
  9. Gholami, M., Mohd Sam, A.R., Marsono, A.K., Tahir, M.M. and Faridmehr, I. (2016), "Performance of steel beams strengthened with pultruded CFRP plate under various exposures", Steel Compos. Struct., Int. J., 20(5), 999-1022. https://doi.org/10.12989/scs.2016.20.5.999
  10. Hmidan, A., Kim, Y.J. and Yazdani, S. (2011), "CFRP repair of steel beams with various initial crack configurations", J. Compos. Construct., 15(6), 952-962. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000223
  11. Jiao, H., Mashiri, F. and Zhao, X.L. (2012), "A comparative study on fatigue behavior of steel beams retrofitted with welding, pultruded CFRP plates and wet layup CFRP sheets", Thin-Wall. Struct., 59, 144-152. https://doi.org/10.1016/j.tws.2012.06.002
  12. Jones, S.C. and Civjan, S.A. (2003), "Application of fibre reinforced polymer overlays to extend steel fatigue life", J. Compos. Construct., 7(4), 331-338. https://doi.org/10.1061/(ASCE)1090-0268(2003)7:4(331)
  13. Kim, Y.J. and Brunell, G. (2011), "Interaction between CFRPrepair and initial damage of wide flange steel beams subject to three-point bending", Compos. Struct., 93(8), 1996-1986.
  14. Kim, Y.J. and Harries, K.A. (2012), "Predictive response of notched steel beams repaired with CFRP strips including bond- slip behavior", Int. J. Struct. Stab. Dyn., 12(1), 1-21.
  15. Kim, Y.J. and Heffernan, P.J. (2008), "Fatigue behavior of externally strengthened concrete beams with fiber-reinforced polymers: state of art", J. Compos. Construct., 12(3), 246-256. https://doi.org/10.1061/(ASCE)1090-0268(2008)12:3(246)
  16. Linghoff, D., Haghani, R. and Al-Emrani, M. (2009), "Carbonfibre composites for strengthening steel structures", Thin-Wall. Struct., 47(10), 1048-1058. https://doi.org/10.1016/j.tws.2008.10.019
  17. Liu, H., Al-Mahaidi, R. and Zhao, X.L. (2009a), "Experimental study of fatigue crack growth behaviour in adhesively reinforced steel structures", Compos. Struct., 90(1), 12-20. https://doi.org/10.1016/j.compstruct.2009.02.016
  18. Liu, H., Xiao, Z., Zhao, X.L. and Al-Mahidi, R. (2009b), "Prediction of fatigue life for CFRP strengthened steel plates", Thin-Wall. Struct., 47(10), 1069-1077. https://doi.org/10.1016/j.tws.2008.10.011
  19. Nakamura, H., Jiang, W., Suzuki, H., Maeda, K. and Irube, T. (2009), "Experimental study on repair of cracks at welded web gusset joint using CFRP strips", Thin-Wall. Struct., 47(10), 1059-1068. https://doi.org/10.1016/j.tws.2008.10.016
  20. Narmashiri, K., Jumaat M.Z. and Ramli Sulong N.H. (2010), "Shear strengthening of steel I-beams by using CFRP strips", Sci. Res. Essays, 5(16), 2155-2168.
  21. Narmashiri, K., Ramli Sulong, N.H. and Jumaat, M.Z. (2012), "Failure analysis and structural behavior of CFRP strengthened steel I-beams", Construct. Build. Mater., 30, 1-9. https://doi.org/10.1016/j.conbuildmat.2011.11.009
  22. Nozaka, K., Shield, C.K. and Hajjar, J.F. (2005), "Effective bond length of carbon-fiber-reinforced polymer strips bonded to fatigue steel bridge I-girders", J. Bridge Eng., 10(2), 195-205. https://doi.org/10.1061/(ASCE)1084-0702(2005)10:2(195)
  23. Rahgozar, R., Sharifi, Y. and Malekinejad, M. (2010), "Buckling capacity of uniformly corroded steel members in terms of exposure time", Steel Compos. Struct., Int. J., 10(6), 475-487. https://doi.org/10.12989/scs.2010.10.6.475
  24. Sebastian, W. and Luke, S. (2007), "Interface Failure Mechanics of Elastically (Advanced Composite) Reinforced Steel Members", J. Struct. Eng., 133(5), 683-694. https://doi.org/10.1061/(ASCE)0733-9445(2007)133:5(683)
  25. Sebastian, W. and Zhang, C. (2013), "Observations from testing of indeterminate FRP-plated steel beams on flexible supports", J. Composites Part B, 45(1), 200-214. https://doi.org/10.1016/j.compositesb.2012.04.008
  26. Tavakkolizadeh, M. and Saadatmanesh, H. (2001), "Repair of cracked steel girder using CFRP sheet", (A. Singh Editor), In: Creative Systems in Structural and Construction Engineering, Balkema, Rotterdam, Netherlands.
  27. Tavakkolizadeh, M. and Saadatmanesh, H. (2003), "Fatigue strength of steel girders strengthened with carbon fiber reinforced polymer patch", J. Struct. Eng., 129(2), 186-192. https://doi.org/10.1061/(ASCE)0733-9445(2003)129:2(186)
  28. Van Den Einde, L., Zhao, L. and Seible, F. (2003), "Use of FRP composites in civil structural applications", Construct. Build. Mater., 17(6), 389-403. https://doi.org/10.1016/S0950-0618(03)00040-0
  29. Wu, G., Wang, H.T., Wu, Z.S., Liu, H.Y. and Ren, Y. (2012), "Experimental study on the fatigue behavior of steel beams strengthened with different fiber-reinforced composite plates", J. Compos. Construct., 16(2), 127-137. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000243

피인용 문헌

  1. Strengthening of steel-concrete composite beams with composite slab vol.34, pp.1, 2020, https://doi.org/10.12989/scs.2020.34.1.091
  2. Test and Numerical Analysis on Damaged Steel Beam Strengthened with Prestressed CFRP Sheet vol.2021, pp.None, 2021, https://doi.org/10.1155/2021/6711877
  3. Shear strengthening of plate girders using carbon-fibre-reinforced polymer composites vol.174, pp.2, 2021, https://doi.org/10.1680/jcoma.16.00078