Earthquakes and Structures

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On the effect of GFRP fibers on retrofitting steel shear walls with low yield stress

  • Edalati, S.A. (Department of Civil and Environmental Engineering, Tarbiat Modares University) ;
  • Yadollahi, Y. (Department of Civil Engineering, Shomal University) ;
  • Pakar, I. (Young Researchers and Elite club, Mashhad Branch, Islamic Azad University) ;
  • Bayat, M. (Department of Civil Engineering, Mashhad Branch, Islamic Azad University)
  • Received : 2014.07.24
  • Accepted : 2014.11.15
  • Published : 2015.06.25
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Abstract

In this article the non-linear behavior of the shear wall with low yield stress retrofitted with Glass Fiber Reinforced Polymer (GFRP) is investigated under pushover loading. The models used in this study are in ${\frac{1}{2}}$ scale of one story frame and simple steel plates with low yield stress filled the frame span. The models used were simulated and analyzed using finite elements method based on experimental data. After verification of the experimental model, various parameters of the model including the number of GFRP layers, fibers positioning in one or two sides of the wall, GFRP angles in respect to the wall and thickness of the steel plate were studied. The results have shown that adding the GFRP layers, the ultimate shear capacity is increased and the amount of energy absorbed is decreased. Besides, the results showed that using these fibers in low-thickness plates is effective and if the positioning angle of the fibers on the wall is diagonal, its behavior will improve.

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References

  1. Alipour Tabrizi, A.M. and Rahai, A. (2011), "Perforated steel shear walls with FRP reinforcement of opening edges", Austral. J. Basic Appl. Sci., 5(10), 672-684.
  2. Chen, S.J. and Jhang, C. (2006), "Cyclic behavior of low yield point steel shear walls", Thin Wall. Struct., 44(7), 730-738. https://doi.org/10.1016/j.tws.2006.08.002
  3. Chen, S.J. and Jhang, C. (2011), "Experimental study of low-yield-point steel plate shear wall under in-plane load", J. Constr. Steel Res., 67(6), 977-985. https://doi.org/10.1016/j.jcsr.2011.01.011
  4. Hatami, F. and Rahai, A.R. (2008), "An investigation of FRP Composite Steel Shear Walls (CSSW) under cyclic loading on laboratory", 14th World Conference on Earthquake Engineering, China.
  5. Hatami, F., Ghamari, A. and Rahai, A. (2012), "Investigating the properties of steel shear walls reinforced with Carbon Fiber Polymers (CFRP)", J. Constr. Steel Res., 70, 36-42. https://doi.org/10.1016/j.jcsr.2011.07.010
  6. Khazaei-Poul, M. and Nateghi-Alahi, F. (2012), "Characteristics of steel plate shear walls with infill plates strengthened by GFRP laminate: Experimental investigation", 15 WCCE, Lissboa.
  7. Kong, B., Cai, C. and Kong, X. (2013), "Thermal behaviors of concrete and steel bridges after slab replacements with GFRP honeycomb sandwich panels", Eng. Struct., 56, 2041-2051. https://doi.org/10.1016/j.engstruct.2013.08.024
  8. Maleki, A., Donchev, T., Hadavinia, H. and Limbchiya, M. (2012), "Improving the seismic resistance of structure using FRP steel shear walls", Proceedings of the 6th International Conference CICE 2012, Rome, Italy.
  9. Mohamed, N., Farghaly, A.S., Benmokrane, B. and Neale, K. (2014), "Experimental investigation of concrete shear walls reinforced with Glass Fiber-Reinforced Bars under lateral cyclic loading", J. Compos. Constr., 18(3), A4014001. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000393
  10. Narmashiri, K., Jumaat, M.Z. and Sulong, R.N.H. (2010), "Shear strengthening of steel I-beams by using CFRP strips", Scientific Res. Essays, 5(16), 2155-2168.
  11. Nateghi-Alahi, F. and Khazaei-Poul, M. (2013), "Analytical study on the strengthened steel plate shear walls by FRP laminate", Procedia Eng., 54, 377-386. https://doi.org/10.1016/j.proeng.2013.03.034
  12. Petkune, N., Donchev, T., Petkova, D., Hadavinia, H., Limbachiya, M.C. and Hussein, Y. (2012), "Opportunities for strengthening of damaged steel shear walls", In 1st International Conference on Civil Engineering Infrastructure Based on Polymer Composites, Krakow, Poland.
  13. Rahai, A.R. and Alipour, M. (2011), "Behavior and characteristics of innovative composite plate shear walls", The Proceedings of the Twelfth East Asia-Pacific Conference on Structural Engineering and Construction-EASEC12, Procedia Eng., 14, 3205-3212.
  14. Yu, Q., Zhao, X., Chen, T., Gu, X. and Xiao, Z. (2014), "Crack propagation prediction of CFRP retrofitted steel plates with different degrees of damage using BEM", Thin Wall. Struct., 82, 145-158. https://doi.org/10.1016/j.tws.2014.04.006
  15. Zhu, J. and Lopez, M. (2014), "Performance of a lightweight GFRP composite bridge deck in positive and negative bending regions", Compos. Struct., 113, 108-117. https://doi.org/10.1016/j.compstruct.2014.03.019

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