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Experimental and analytical investigation of steel beams rehabilitated using GFRP sheets

  • El Damatty, A.A. (Department of Civil and Environmental Engineering, The University of Western Ontario) ;
  • Abushagur, M. (Department of Civil and Environmental Engineering, The University of Western Ontario) ;
  • Youssef, M.A. (Department of Civil and Environmental Engineering, The University of Western Ontario)
  • 발행 : 2003.12.25

초록

Aging and deterioration of existing steel structures necessitate the development of simple and efficient rehabilitation techniques. The current study investigates a methodology to enhance the flexural capacity of steel beams by bonding Glass Fibre Reinforced Plastic (GFRP) sheets to their flanges. A heavy duty adhesive, tested in a previous study is used to bond the steel and the GFRP sheet. In addition to its ease of application, the GFRP sheet provides a protective layer that prevents future corrosion of the steel section. The study reports the results of bending tests conducted on a W-shaped steel beam before and after rehabilitation using GFRP sheets. Enhancement in the moment capacity of the beam due to bonding GFRP sheet is determined from the test results. A closed form analytical model that can predict the yield moment as well as the stresses induced in the adhesive and the GFRP sheets of rehabilitated steel beam is developed. A detailed finite element analysis for the tested specimens is also conducted in this paper. The steel web and flanges as well as the GFRP sheets are simulated using three-dimensional brick elements. The shear and peel stiffness of the adhesive are modeled as equivalent linear spring systems. The analytical and experimental results indicate that a significant enhancement in the ultimate capacity of the steel beam is achieved using the proposed technique. The finite element analysis is employed to describe in detail the profile of stresses and strains that develop in the rehabilitated steel beam.

키워드

참고문헌

  1. ANSYS program revision 5.3. ANSYS Inc., Canonsburg, PA.
  2. Chakrabarti, P.R. and Mosallam, A.S. (1998), "Performance of welded steel beam-to-column joints seismically retrofitted with polymer & steel stiffeners", Proc. of the 2nd Int. Conf. on Composites in Infrastructure, Tucson, AZ, USA.
  3. El Damatty, A. and Abushagur, M. (2003), "Testing and modeling of shear and peel behaviour for bonded steel/ FRP connections", J. Thin-Walled Structures, 41, 987-1003. https://doi.org/10.1016/S0263-8231(03)00051-X
  4. Liby, L.W. (1993), "Steel composite bridge sections strengthened by carbon fibre reinforced plastic laminates", Master of Science in Engineering Thesis, University of South Florida.
  5. Lombard, J.C., Lau, D.T. and Foo, S. (1999), "Experimental study of reinforced concrete shear walls strengthened with fibre reinforced plastic sheets", Proc. of the 8th Canadian Conf., Canadian association for earthquake engineering, Vancouver, BC, 543-548.
  6. Mettemeyer, M., Serra, P., Wuerthele, M., Schuster, G. and Nanni, A. (1999), "Shear load testing of carbon fibre reinforced polymer strengthened double tee beams in precast parking garage", Proc. of the 4th Int. Symp. on Fibre Reinforced Polymer Reinforcement for Concrete Structures, ACI SP-188, Baltimore, MD, 1063-1072.
  7. Priestly, M.J.N., Seible, F. and Fyfe, E. (1992) "Column seismic retrofit using fiberglass/epoxy jackets", Proc. of the 1st Int. Conf. on Advanced Composite Materials in Bridges and Structures, Sherbrooke, QC, 287-299.
  8. Roberts, J.E. (1997), "Application of composites in California bridges", Proc. of Structures Congress (XV), The Structural Engineering Institute, ASCE, Portland, OR, 56-66.
  9. Sen, R., Liby, L. and Mullins, G. (2001), "Strengthening steel bridge sections using CFRP laminates", Journal of Composites, B (32), 309-322.
  10. Wang, Y. (1992), "Bridge strengthening using advanced composites", Master of Science in Engineering thesis, University of South Florida.

피인용 문헌

  1. EFFECTS OF CFRP REINFORCEMENTS ON THE BUCKLING BEHAVIOR OF THIN-WALLED STEEL CYLINDERS UNDER COMPRESSION vol.12, pp.01, 2012, https://doi.org/10.1142/S0219455412004665
  2. Elastic Analysis of Steel Beams Strengthened with GFRP Plates Including Preexisting Loading Effects vol.143, pp.12, 2017, https://doi.org/10.1061/(ASCE)ST.1943-541X.0001904
  3. Preparation and Characterization of Steel Surfaces for Adhesive Bonding vol.17, pp.6, 2013, https://doi.org/10.1061/(ASCE)CC.1943-5614.0000387
  4. Comparative durability study of CFRP strengthened tubular steel members under cold weather vol.49, pp.5, 2016, https://doi.org/10.1617/s11527-015-0610-x
  5. Experimental and numerical investigation of the behaviour of CFRP strengthened CHS beams subjected to bending vol.113, 2016, https://doi.org/10.1016/j.engstruct.2016.01.047
  6. Discussion of “Flexural Strengthening of Steel Bridges with High Modulus CFRP Strips” by David Schnerch and Sami Rizkalla vol.15, pp.1, 2010, https://doi.org/10.1061/(ASCE)BE.1943-5592.72
  7. A numerical investigation of overstrength and ductility factors of moment resisting steel frames retrofitted with GFRP plates vol.41, pp.1, 2014, https://doi.org/10.1139/cjce-2012-0271
  8. A shear deformable theory for the analysis of steel beams reinforced with GFRP plates vol.85, 2014, https://doi.org/10.1016/j.tws.2014.08.009
  9. Experimental study of CFRP strengthened steel columns subject to lateral impact loads vol.185, 2018, https://doi.org/10.1016/j.compstruct.2017.10.089
  10. Bond Behavior of CFRP Strengthened Steel Structures vol.9, pp.6, 2006, https://doi.org/10.1260/136943306779369464
  11. On the use of the EC3 and AISI specifications to estimate the ultimate load of CFRP-strengthened cold-formed steel lipped channel columns vol.47, pp.10, 2009, https://doi.org/10.1016/j.tws.2008.10.013
  12. Flexural Strengthening of Steel Bridges with High Modulus CFRP Strips vol.13, pp.2, 2008, https://doi.org/10.1061/(ASCE)1084-0702(2008)13:2(192)
  13. Flexural Strengthening of Structural Steel Angle Sections Using CFRP: Experimental Investigation vol.20, pp.1, 2016, https://doi.org/10.1061/(ASCE)CC.1943-5614.0000578
  14. Rehabilitation of Composite Steel Bridges Using GFRP Plates vol.12, pp.5, 2005, https://doi.org/10.1007/s10443-005-2730-x
  15. Durability of CFRP strengthened circular hollow steel members under cold weather: Experimental and numerical investigation vol.123, 2016, https://doi.org/10.1016/j.conbuildmat.2016.06.116
  16. Non-linear behaviour and load-carrying capacity of CFRP-strengthened lipped channel steel columns vol.30, pp.10, 2008, https://doi.org/10.1016/j.engstruct.2008.02.010
  17. Enhancement of buckling capacity of steel plates strengthened with GFRP plates vol.60, 2012, https://doi.org/10.1016/j.tws.2012.06.013
  18. Improvement of local buckling behaviour of steel beams through bonding GFRP plates vol.96, 2013, https://doi.org/10.1016/j.compstruct.2012.08.042
  19. Nonshear Deformable Theory for Analysis of Steel Beams Reinforced with GFRP Plate Closed-Form Solution vol.141, pp.12, 2015, https://doi.org/10.1061/(ASCE)ST.1943-541X.0001312
  20. Nominal moment capacity of partially deteriorated AISC W-section beams vol.82, 2017, https://doi.org/10.1016/j.engfailanal.2017.08.018
  21. Analytical prediction of the linear and nonlinear behaviour of steel beams rehabilitated using FRP sheets vol.28, pp.6, 2006, https://doi.org/10.1016/j.engstruct.2005.10.018
  22. Rehabilitation of a Vehicle Impact Damaged Concrete Bridge Girder with GFRP Rebars vol.199, pp.2261-236X, 2018, https://doi.org/10.1051/matecconf/201819909007
  23. Strengthening Steel Members with Holes Under Tension Using Unidirectional GFRP Sheets vol.18, pp.2, 2018, https://doi.org/10.1007/s13296-018-0011-4
  24. 炭素繊維プレートによる山形鋼圧縮材の接着補強設計式に関する実験的研究 vol.76, pp.659, 2003, https://doi.org/10.3130/aijs.76.175
  25. 炭素繊維プレートによる山形鋼部材の圧縮補強に関する実験的研究 vol.76, pp.661, 2003, https://doi.org/10.3130/aijs.76.685
  26. 강관링으로 보강된 GFRP 쉘구조의 극한 거동 vol.26, pp.3, 2003, https://doi.org/10.7781/kjoss.2014.26.3.219
  27. Computing redistribution moments in the plastic stage by using linear analysis vol.3, pp.1, 2003, https://doi.org/10.1007/s41062-018-0143-6
  28. Experimental Study on CFRP-to-Steel Bonded Interfaces under Quasi-Static Cyclic Loading vol.23, pp.4, 2019, https://doi.org/10.1061/(asce)cc.1943-5614.0000945
  29. Study on Calculation of Bearing Capacity of Axially Loaded CFRP-Strengthened Cold-Formed Thin-Walled Lipped Channel Steel Columns vol.2020, pp.None, 2003, https://doi.org/10.1155/2020/9682929
  30. Elastic buckling strength for steel plates symmetrically strengthened with glass fiber reinforced polymer plates vol.47, pp.3, 2003, https://doi.org/10.1139/cjce-2018-0476
  31. Corroded steel beams with various corrosion aspect ratios – A rehabilitation technique using basalt fibre fabric vol.221, pp.None, 2003, https://doi.org/10.1016/j.engstruct.2020.111075
  32. An enriched model based on a complementary strain energy variational principle for stress analysis in FRP plate-strengthened beams vol.16, pp.3, 2021, https://doi.org/10.2140/jomms.2021.16.237
  33. Use of basalt fiber fabric for rehabilitation of steel beams with corroded compression flange vol.255, pp.None, 2003, https://doi.org/10.1016/j.compstruct.2020.113014
  34. Performance of FRP strengthened full-scale simply-supported circular hollow steel members under monotonic and large-displacement cyclic loading vol.242, pp.None, 2003, https://doi.org/10.1016/j.engstruct.2021.112522