Non-linear seismic analysis of a reinforced concrete building with FRP jacketed columns

İlki A., Darılmaz K., Demir C., Bedirhanoglu I., Kumbasar N.

2005 fib Symposium on Keep Concrete Attractive, Budapest, Hungary, 23 - 25 May 2005, vol.2, pp.687-692 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 2
  • City: Budapest
  • Country: Hungary
  • Page Numbers: pp.687-692
  • Istanbul Technical University Affiliated: Yes


In this study, non-linear seismic analyses of a six story reinforced concrete building, representing many common characteristics of typical existing buildings in lstanbul, were carried out before and after retrofitting the columns of the building by carbon fiber reinforced polymer (CFRP) composite sheets in transverse direction. For this purpose, moment-curvature relationships of original and retrofitted columns were obtained by cross-sectional fiber analysis, during which material models such as stress-strain curves of reinforcing steel, unconfined concrete, and concrete confined by CFRP sheets were utilized. According to the results of the analyses, significantly larger lateral displacement and relatively higher lateral strength with respect to original performance are possible by jacketing the columns of the building with CFRP sheets.