Steel and Composite Structures

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Numerical investigation of SHS steel beam-columns strengthened using CFRP composite

  • Keykha, Amir Hamzeh (Department of Civil Engineering, Zahedan Branch, Islamic Azad University)
  • Received : 2016.08.25
  • Accepted : 2017.09.02
  • Published : 2017.12.10
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Abstract

Carbon Fiber Reinforced Polymer (CFRP) is one of the materials used to strengthen steel structures. Most studies on strengthening steel structures have been done on steel beams and steel columns. No independent study, to the researcher's knowledge, has studied the effect of CFRP strengthening on steel beam-columns, and it seems that there is a lack of understanding on behavior of CFRP strengthening on steel beam-columns. However, this study explored the use of adhesively bonded CFRP flexible sheets on retrofitting square hollow section (SHS) steel beam-columns, using numerical investigations. Finite Element Method (FEM) was employed for modeling. To determine the ultimate load of SHS steel beam-columns, ten specimens, eight of which were strengthened with the different coverage length and with one and two CFRP layers, with two types of section (Type A and B) were analyzed. ANSYS was used to analyze the SHS steel beam-columns. The results showed that the CFRP composite had no similar effect on the slender and stocky SHS steel beam-columns. The results also showed that the coverage length, the number of layers, and the location of CFRP composites were effective in increasing the ultimate load of the SHS steel beam-columns.

Keywords

References

  1. ACI Committee 440. (2002), "Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures", ACI440.2R-02, Farmington Hills, MI, American Institute.
  2. Abdollahi chakand, N. and Zamin Jumaat, M. (2013), "Experimental and theoretical investigation on torsional behavior CFRP strengthened square hollow steel section", Thin Wall. Struct., 68, 135-140. https://doi.org/10.1016/j.tws.2013.03.008
  3. Al Zand, A.W., Badaruzzaman, W.H. and Mutalib, A.A. (2015), "Qahtan AH. Finite element analysis of square CFST beam strengthened by CFRP composite material", Thin Wall. Struct., 96, 348-358. https://doi.org/10.1016/j.tws.2015.08.019
  4. Al-Zubaidy, H., Al-Mahaidi, R. and Zhao, X.L. (2013), "Finite element modelling of CFRP/steel double strap joints subjected to dynamic tensile loadings", Compos. Struct., 99, 48-61. https://doi.org/10.1016/j.compstruct.2012.12.003
  5. Bambach, M.R., Jama, H.H. and Elchalakani, M. (2009), "Axial capacity and design of thin-walled steel SHS strengthened with CFRP", Thin Wall. Struct., 47, 1112-1121. https://doi.org/10.1016/j.tws.2008.10.006
  6. Deng, J., Lee, M.M. and Moy, S.S. (2004), "Stress analysis of steel beams reinforced with a bonded CFRP plate", Compos. Struct., 65(2), 205-215. https://doi.org/10.1016/j.compstruct.2003.10.017
  7. Haedir, J. and Zhao, X.L. (2011), "Design of short CFRP-reinforced steel tubular columns", J. Constr. Steel Res., 67, 497-509. https://doi.org/10.1016/j.jcsr.2010.09.005
  8. Fanggi, B.A.L and Ozbakkaloglu, T. (2015), "Square FRP-HSC-steel composite columns: Behavior under axial compression", Eng. Struct., 92, 156-171. https://doi.org/10.1016/j.engstruct.2015.03.005
  9. Idris, Y. and Ozbakkaloglu, T. (2016). "Behavior of square fiber reinforced polymer-high-strength concrete-steel double-skin tubular columns under combined axial compression and reversed-cyclic lateral loading", Eng. Struct., 118, 307-319. https://doi.org/10.1016/j.engstruct.2016.03.059
  10. Idris, Y. and Ozbakkaloglu, T. (2014). "Flexural behavior of FRP-HSC-steel composite beams", Thin Wall. Struct., 80, 207-216. https://doi.org/10.1016/j.tws.2014.03.011
  11. Islam, S.Z. and Young, B. (2013), "Strengthening of ferritic stainless steel tubular structural members using FRP subjected to Two-Flange-Loading", Thin Wall. Struct., 62, 179-190. https://doi.org/10.1016/j.tws.2012.09.001
  12. Kim, Y.J. and Harries, K.A. (2011), "Behavior of tee-section bracing members retrofitted with CFRP strips subjected to axial compression", Composites Part B: Eng., 42(4), 789-800. https://doi.org/10.1016/j.compositesb.2011.01.016
  13. Keykha, A.H., Nekooei, M. and Rahgozar, R. (2015), "Experimental and theoretical analysis of hollow steel columns strengthening by CFRP", Civil Eng. Dimension, 17(2), 101-107.
  14. Keykha, A.H., Nekooei, M. and Rahgozar, R. (2016b), "Numerical and experimental investigation of hollow steel columns strengthened with carbon fiber reinforced polymer", J. Struct. Constr. Eng., 3 (1), 49-58.
  15. Keykha, A.H., Nekooei, M. and Rahgozar, R. (2016a), "Analysis and strengthening of SHS Steel columns using CFRP composite materials", Compos. Mech. Comput. Appl., 7(4), 275-290. https://doi.org/10.1615/CompMechComputApplIntJ.v7.i4.20
  16. Keykha A.H. (2017a), "Finite element investigation on the structural behavior of deficient steel beam-columns strengthened using CFRP composite", Proceedings of the 3th international conference on mechanics of composites (MECHCOMP3), Bologna, Italy, July.
  17. Keykha, A.H. (2017b), "CFRP strengthening of steel columns subjected to eccentric compression loading", Steel Compos. Struct., 23(1), 87-94. https://doi.org/10.12989/scs.2017.23.1.087
  18. Keykha A.H. (2017c), "Structural behaviors of deficient steel members strengthened using CFRP composite subjected to torsional loading", Proceedings of the 3th international conference on mechanics of composites (MECHCOMP3), Bologna, Italy, July.
  19. Keykha, A.H. (2017d), "Numerical investigation on the behavior of SHS steel frames strengthened using CFRP", Steel Compos. Struct., 24 (5), 561-568. https://doi.org/10.12989/SCS.2017.24.5.561
  20. Ozbakkaloglu, T. and Xie, T. (2015), "Behavior of steel fiber-reinforced high-strength concrete-filled FRP tube columns under axial compression", Eng. Struct., 90, 158-171. https://doi.org/10.1016/j.engstruct.2015.02.020
  21. Ozbakkaloglu, T. and Idris, Y. (2014), "Seismic behavior of FRP-high-strength concrete-steel double-skin tubular columns", J. Struct. Eng., 140(6), 04014019. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000981
  22. Idris, Y. and Ozbakkaloglu, T. (2015), "Flexural behavior of FRP-HSC-steel double skin tubular beams under reversed-cyclic loading", Thin Wall. Struct., 87, 89-101. https://doi.org/10.1016/j.tws.2014.11.003
  23. Park, J.W. and Yoo, J.H. (2013), "Axial loading tests and load capacity prediction of slender SHS stub columns strengthened with carbon fiber reinforced polymers", Steel Compos. Struct., 15(2), 131-150. https://doi.org/10.12989/scs.2013.15.2.131
  24. Sundarraja, M.C. and Prabhu, G.G. (2013), "Flexural behaviour of CFST members strengthened using CFRP composites", Steel Compos. Struct., 15(6), 623-643. https://doi.org/10.12989/scs.2013.15.6.623
  25. Teng, J.G. and Hu, Y.M. (2007), "Behavior of FRP jacketed circular steel tubes and cylindrical shells under compression", Int. J. Constr. Build. Mater., 21(4), 827-838. https://doi.org/10.1016/j.conbuildmat.2006.06.016
  26. Youssef, M.A. (2006), "Analytical prediction of the linear and nonlinear behaviour of steel beams rehabilitated using FRP sheets", Eng. Struct., 28(6), 903-911. https://doi.org/10.1016/j.engstruct.2005.10.018

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