Steel and Composite Structures

  • 제34권1호
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  • Pages.91-105
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  • 2020
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Strengthening of steel-concrete composite beams with composite slab

  • 투고 : 2019.03.07
  • 심사 : 2019.11.28
  • 발행 : 2020.01.10
⟨ 이전 논문 다음 논문 ⟩

초록

Steel-concrete composite beam with profiled steel sheet has gained its popularity in the last two decades. Due to the ageing of these structures, retrofitting in terms of flexural strength is necessary to ensure that the aged structures can carry the increased traffic load throughout their design life. The steel ribs, which presented in the profiled steel deck, limit the use of shear connectors. This leads to a poor degree of composite action between the concrete slab and steel beam compared to the solid slab situation. As a result, the shear connectors that connects the slab and beam will be subjected to higher shear stress which may also require strengthening to increase the load carrying capacity of an existing composite structure. While most of the available studies focus on the strengthening of longitudinal shear and flexural strength separately, the present work investigates the effect of both flexural and longitudinal shear strengthening of steel-concrete composite beam with composite slab in terms of failure modes, ultimate load carrying capacity, ductility, end-slip, strain profile and interface differential strain. The flexural strengthening was conducted using carbon fibre reinforced polymer (CFRP) or steel plate on the soffit of the steel I-beam, while longitudinal shear capacity was enhanced using post-installed high strength bolts. Moreover, a combination of both the longitudinal shear and flexural strengthening techniques was also implemented (hybrid strengthening). It is concluded that hybrid strengthening improved the ultimate load carrying capacity and reduce slip and interface differential strain that lead to improved composite action. However, hybrid strengthening resulted in brittle failure mode that decreased ductility of the beam.

키워드

과제정보

연구 과제 주관 기관 : Deakin University

This project was funded by School of Engineering of Deakin University under Deakin Engineering Research Grant Scheme. Also, the authors would like to thank Mr Lube Veljanoski, Mr Sanjay Sathyanarayana, Mr Francis Mason, Mr Jack Sellen, Mr Resham Singh and Ms Sahaja Kothapalli for their support in this project.

참고문헌

  1. Afefy, H.M., Sennah, K. and Akhlagh-Nejat, H. (2016), "Experimental and analytical investigations on the flexural behavior of CFRP-strengthened composite girders", Journal of Constructional Steel Research. 120, 94-105. https://doi.org/10.1016/j.jcsr.2016.01.010
  2. AISC. (2000), Load and resistance factor design specification for structural steel buildings, American Institute of Steel Construction Incorporated
  3. Al-Saidy, A., Klaiber, F. and Wipf, T. (2007), "Strengthening of steel-concrete composite girders using carbon fiber reinforced polymer plates", Constr. Build. Mater., 21(2), 295-302. https://doi.org/10.1016/j.conbuildmat.2005.08.018
  4. Al-Saidy, A.H., Klaiber, F. and Wipf, T. (2004), "Repair of steel composite beams with carbon fiber-reinforced polymer plates", J. Compos. Constr., 8(2), 163-172. https://doi.org/10.1061/(ASCE)1090-0268(2004)8:2(163)
  5. Bank, L.C. and Arora, D. (2007), "Analysis of RC beams strengthened with mechanically fastened FRP (MF-FRP) strips", Compos. Struct., 79(2), 180-191. https://doi.org/10.1016/j.compstruct.2005.12.001
  6. Bansal, P.P., Sharma, R. and Mehta, A. (2016), "Retrofitting of RC girders using pre-stressed CFRP sheets", Steel Compos. Struct., 20(4), 833-849. https://doi.org/10.12989/scs.2016.20.4.833
  7. Carlin, B.P. (1998), Investigation of the strength and ductility of reinforced concrete beams strengthened with CFRP laminates, Master Thesis, Virginia Polytechnic Institute and State University, Virginia
  8. Chen, A. and Yossef, M. (2015), "Analytical Model for Deck-On-Girder Composite Beam System with Partial Composite Action", J. Eng. Mech., 142(2), 04015087. https://doi.org/10.1061/(ASCE)EM.1943-7889.0000991
  9. Demir, A., Ercan, E. and Demir, D.D. (2018), "Strengthening of reinforced concrete beams using external steel members", Steel Compos. Struct., 27(4), 453-464. https://doi.org/10.12989/scs.2018.27.4.453
  10. Deng, J., Lee, M.M. and Li, S. (2011), "Flexural strength of steel-concrete composite beams reinforced with a prestressed CFRP plate", Constr. Building Materials. 25(1), 379-384. https://doi.org/10.1016/j.conbuildmat.2010.06.015
  11. El-Hacha, R. and Aly, M.Y. (2012), "Anchorage system to prestress FRP laminates for flexural strengthening of steelconcrete composite girders", J. Compos. Constr., 17(3), 324-335. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000323
  12. El-Zohairy, A., Salim, H., Shaaban, H., Mustafa, S. and El-Shihy, A. (2017), "Experimental and FE parametric study on continuous steel-concrete composite beams strengthened with CFRP laminates", Constr. Build. Mater., 157, 885-898. https://doi.org/10.1016/j.conbuildmat.2017.09.148
  13. Ellobody, E. (2011), "Performance of composite girders strengthened using carbon fibre reinforced polymer laminates", Thin-Walled Struct., 49(11), 1429-1441. https://doi.org/10.1016/j.tws.2011.07.002
  14. Eurocode 4 (1994), Design of composite steel and concrete structures, Part 1, European Committee for Standardization; Brussels, Belgium
  15. Fam, A., MacDougall, C. and Shaat, A. (2009), "Upgrading steel-concrete composite girders and repair of damaged steel beams using bonded CFRP laminates", Thin-Walled Struct., 47(10), 1122-1135. https://doi.org/10.1016/j.tws.2008.10.014
  16. Gholamhoseini, A., Gilbert, R., Bradford, M. and Chang, Z. (2014), "Longitudinal shear stress and bond-slip relationships in composite concrete slabs", Eng. Struct., 69, 37-48. https://doi.org/10.1016/j.engstruct.2014.03.008
  17. Hadji, L., Daouadji, T.H., Meziane, M. and Bedia, E. (2016), "Analyze of the interfacial stress in reinforced concrete beams strengthened with externally bonded CFRP plate", Steel Compos. Struct., 20(2), 413-429. https://doi.org/10.12989/scs.2016.20.2.413
  18. Hawileh, R., Nawaz, W., Abdalla, J. and Saqan, E. (2015), "Effect of flexural CFRP sheets on shear resistance of reinforced concrete beams", Compos. Struct., 122, 468-476. https://doi.org/10.1016/j.compstruct.2014.12.010
  19. Henderson, I., Zhu, X., Uy, B. and Mirza, O. (2017), "Dynamic behaviour of steel-concrete composite beams retrofitted with various bolted shear connectors", Eng. Structures. 131, 115-135. https://doi.org/10.1016/j.engstruct.2016.10.021
  20. Johnson, R.P. (2008), Composite Structures of Steel and Concrete: Beams, Slabs, Columns, and Frames for Buildings, John Wiley & Sons, Oxford, UK
  21. Karam, E.C., Hawileh, R.A., El Maaddawy, T. and Abdalla, J.A. (2017), "Experimental investigations of repair of pre-damaged steel-concrete composite beams using CFRP laminates and mechanical anchors", Thin-Walled Struct., 112, 107-117. https://doi.org/10.1016/j.tws.2016.12.024
  22. Kataoka, M.N., Friedrich, J.T. and El Debs, A.L.H. (2017), "Experimental investigation of longitudinal shear behavior for composite floor slab", Steel Compos. Struct., 23(3), 351-362. https://doi.org/10.12989/scs.2017.23.3.351
  23. Kwon, G., Engelhardt, M.D. and Klingner, R.E. (2010), "Behavior of post-installed shear connectors under static and fatigue loading", J. Constr. Steel Res., 66(4), 532-541. https://doi.org/10.1016/j.jcsr.2009.09.012
  24. Lorenz, R.F. and Stockwell, F.W. (1984), "Concrete slab stresses in partial composite beams and girders", Engineering Journal-American Institute of Steel Construction INC. 21(3), 185-188.
  25. Miller, T.C., Chajes, M.J., Mertz, D.R. and Hastings, J.N. (2001), "Strengthening of a steel bridge girder using CFRP plates", J. Bridge Eng., 6(6), 514-522. https://doi.org/10.1061/(ASCE)1084-0702(2001)6:6(514)
  26. Mosavi, S. and Nik, A.S. (2015), "Strengthening of steel-concrete composite girders using carbon fibre reinforced polymer (CFRP) plates", Sadhana. 40(1), 249-261. https://doi.org/10.1007/s12046-014-0294-x
  27. Nawaz, W., Hawileh, R.A., Saqan, E.I. and Abdalla, J.A. (2016), "Effect of Longitudinal Carbon Fiber-Reinforced Polymer Plates on Shear Strength of Reinforced Concrete Beams", ACI Struct. J., 113(3), 577-586. https://doi.org/10.14359/51688475
  28. Nie, J., Cai, C. and Wang, T. (2005), "Stiffness and capacity of steel-concrete composite beams with profiled sheeting", Eng. Struct., 27(7), 1074-1085. https://doi.org/10.1016/j.engstruct.2005.02.016
  29. Nie, J., Fan, J. and Cai, C. (2008), "Experimental study of partially shear-connected composite beams with profiled sheeting", Eng. Struct., 30(1), 1-12. https://doi.org/10.1016/j.engstruct.2007.02.016
  30. Pathirana, S.W., Uy, B., Mirza, O. and Zhu, X. (2015), "Strengthening of existing composite steel-concrete beams utilising bolted shear connectors and welded studs", J. Constr. Steel Res., 114, 417-430. https://doi.org/10.1016/j.jcsr.2015.09.006
  31. Pathirana, S.W., Uy, B., Mirza, O. and Zhu, X. (2016), "Bolted and welded connectors for the rehabilitation of composite beams", J. Constr. Steel Res., 125, 61-73. https://doi.org/10.1016/j.jcsr.2016.06.003
  32. Pathirana, S.W., Uy, B., Mirza, O. and Zhu, X. (2016), "Flexural behaviour of composite steel-concrete beams utilising blind bolt shear connectors", Eng. Struct., 114, 181-194. https://doi.org/10.1016/j.engstruct.2016.01.057
  33. Sallam, H., Ahmad, S., Badawy, A. and Mamdouh, W. (2006), "Evaluation of steel I-beams strengthened by various plating methods", Adv. Struct. Eng., 9(4), 535-544. https://doi.org/10.1260/136943306778812796
  34. Sallam, H., Saba, A., Mamdouh, W., Maaly, H. and Ibrahim, I. (2005), "Strengthening of steel beams using bonded CFRP and steel plates: a pilot study", Al-Azhar University Eng. J., 8(10), 23-29.
  35. Saravanan, M., Marimuthu, V., Prabha, P., Arul Jayachandran, S. and Datta, D. (2012), "Experimental investigations on composite slabs to evaluate longitudinal shear strength", Steel Compos. Struct., 13(5), 489-500. http://dx.doi.org/10.12989/scs.2012.13.5.489
  36. Sen, R., Liby, L. and Mullins, G. (2001), "Strengthening steel bridge sections using CFRP laminates", Compos. Part B: Eng., 32(4), 309-322. https://doi.org/10.1016/S1359-8368(01)00006-3
  37. Subhani, M., Al-Ameri, R. and Kabir, M.I. (2018), "Hybrid strengthening of steel-concrete composite beam, part 1: Experimental investigation", J. Constr. Steel Res., 141, 23-35. https://doi.org/10.1016/j.jcsr.2017.11.005
  38. Tavakkolizadeh, M. and Saadatmanesh, H. (2003), "Repair of damaged steel-concrete composite girders using carbon fiberreinforced polymer sheets", J. Compos. Constr., 7(4), 311-322. https://doi.org/10.1061/(ASCE)1090-0268(2003)7:4(311)
  39. Tavakkolizadeh, M. and Saadatmanesh, H. (2003), "Strengthening of steel-concrete composite girders using carbon fiber reinforced polymers sheets", J. Struct. Eng., 129(1), 30-40. https://doi.org/10.1061/(ASCE)0733-9445(2003)129:1(30)
  40. Yousefi, O., Narmashiri, K. and Ghaemdoust, M.R. (2017), "Structural behaviors of notched steel beams strengthened using CFRP strips", Steel Compos. Struct., 25(1), 35-43. https://doi.org/10.12989/scs.2017.25.1.035

피인용 문헌

  1. Optimal Design of Steel-Concrete Composite Beams Strengthened under Load vol.14, pp.16, 2021, https://doi.org/10.3390/ma14164715