Structural Engineering and Mechanics

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Earthquake performance of FRP retrofitting of short columns around band-type windows

  • Kocak, Ali (Department of Civil Engineering, Yildiz Technical University)
  • Received : 2014.01.06
  • Accepted : 2014.04.04
  • Published : 2015.01.10
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Abstract

Due to design codes and regulations and the variety of building plans in Turkey, it is very often seen that band-type windows are left for ventilation and lightening of the basements of buildings which are used for various purposes such as workplaces and storage. Therefore when the necessary support measures cannot be given, short columns are subjected to very high shear forces and so damage occurs. One of the precautions to avoid the damage of short column mechanisms in buildings where band-type windows are in the basement is to strengthen the short columns with fiber reinforced polymer (FRP). In this study, the effect of the FRP retrofitting process of the short columns around band-windowed structures, which are found especially in basement areas, is analyzed in accordance with Turkish Seismic Code 2007 (TSC 2007). Three different models which are bare frame, frame with short columns and retrofitted short columns with FRP, are created and analyzed according to TSC 2007 performance analysis methods to understand the effects of band windows in basements and the effect of FRP retrofitting.

Keywords

References

  1. Chaallal, O., Shahawy, M. and Hassan, M. (2003), "Performance of axially loaded short rectangular columns strengthened with carbon fiber-reinforced polymer wrapping", J. Compos. Constr., ASCE, 7(3), 200-208. https://doi.org/10.1061/(ASCE)1090-0268(2003)7:3(200)
  2. Chen, J.F. (2002), "Load-bearing capacity of masonry arch bridges retrofitted with fibre reinforced polymer composites", Adv. Struct. Eng., 5(1), 37-44. https://doi.org/10.1260/1369433021502524
  3. Colomb, F., Tobbi, H., Ferrier, E. and Hamelin, P. (2008), "Seismic retrofit of reinforced concrete short columns by CFRP materials", Compos. Struct., 82(4), 475-487. https://doi.org/10.1016/j.compstruct.2007.01.028
  4. Galal, K., Arafa, A. and Ghobarah, A. (2005) "Retrofit of RC square short columns", Eng. Struct., 27(5), 801-813. https://doi.org/10.1016/j.engstruct.2005.01.003
  5. Girgin, K. (1996), "A method of load increments for determining the second-order limit load and collapse safety of RC framed structures", Ph. D. Thesis, Dissertation, Istanbul Technical University, Istanbul.
  6. Guevara, L.T. and Garcia, L.E. (2005), "The captive and short column effects", Earthq. Spectra, 21(1), 141-160. https://doi.org/10.1193/1.1856533
  7. Hadi, M. N. S. (2006), "Comparative study of eccentrically loaded FRP wrapped columns", J. Compos. Struct., 74(2), 127-135. https://doi.org/10.1016/j.compstruct.2005.03.013
  8. Haskett, M., Mohamed Ali, M.D., Oehlers, J. and Wu, C. (2009), "Influence of bond on the hinge rotation of FRP plated beams", Adv. Struct. Eng., 12(6), 833-843. https://doi.org/10.1260/136943309790327725
  9. Ilki, A., Peker, O., Karamuk, E., Demir, C. and Kumbasar, N. (2008), "FRP retrofit of low and medium strength circular and rectangular reinforced concrete columns", J. Mater. Civil Eng., ASCE, 20(2), 169-188. https://doi.org/10.1061/(ASCE)0899-1561(2008)20:2(169)
  10. Ilki, A., Demir, C., Bedirhanoglu, I. and Kumbasar, N. (2009), "Seismic retrofit of brittle and low strength RC columns using fiber reinforced polymer and cementitious composites", Adv. Struct. Eng., 12(3), 325-347. https://doi.org/10.1260/136943309788708356
  11. Kocak, A. (2013), "The effect of short columns on the performance of existing buildings", Struct. Eng. Mech., 46(4), 505-518. https://doi.org/10.12989/sem.2013.46.4.505
  12. Kusumawardaningsiha, Y. and Hadi, M.N.S. (2010), "Comparative behaviour of hollow columns confined with FRP composites", Compos. Struct., 93(1), 198-205. https://doi.org/10.1016/j.compstruct.2010.05.020
  13. Paulay, T. (1991), "Seismic design strategies for ductile reinforced concrete structural wall", Proceedings of International Conference on Buildings with Load Bearing Concrete Walls in Seismic Zones, Paris, France.
  14. Promis, G., Ferrier, E. and Hamelin, P. (2009) "Effect of external FRP retrofitting on reinforced concrete short columns for seismic strengthening." Compos. Struct., 88(3), 367-379. https://doi.org/10.1016/j.compstruct.2008.04.019
  15. Toutanji, H., Zhao, L. and Zhang, Y. (2006), "Flexural behaviour of reinforced concrete beams externally strengthened with CFRP sheets bonded with an inorganic matrix", Eng. Struct., 28(4), 557-566. https://doi.org/10.1016/j.engstruct.2005.09.011
  16. Turkish Earthquake Resistant Design Code (2007), TSC, Specifications for buildings to be built in disaster areas, Ankara.
  17. Wang, Y. and Hsua, K. (2008), "Design of FRP-wrapped reinforced concrete columns for enhancing axial load carrying capacity", Compos. Struct., 82(1), 132-139. https://doi.org/10.1016/j.compstruct.2007.04.002
  18. Xiao, Y. (2004) ,"Applications of FRP Composites in Concrete Columns", Adv. Struct. Eng., 7(4), 335-343. https://doi.org/10.1260/1369433041653552
  19. XTRACT, (2001), Cross Sectional Analysis of Components, Imbsen Software System, Sacramento.
  20. Yoshimura, K., Kikuchi, K., Kuroki, M., Ozawa, K., Masuda, Y., Okino, M., Koja, T. and Tanaka, Y. (2000), "Experimental study on seismic behavior of R/C short columns retrofitted by carbon fiber sheets", Composite and hybrid structures: Proceedings of the sixth ASCCS International Conference on Steel-Concrete Composite Structures, 927-935.

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