28th International Scientific Conference MECHANIKA 2024, Kaunas, Litvanya, 31 Mayıs 2024, ss.13-18, (Tam Metin Bildiri)
As seismic performance requirements outlined in earthquake codes become increasingly stringent and the lifespan of
reinforced concrete (RC) structures extends, seismic performance analysis of previously rehabilitated RC buildings has
become an important topic of interest again. A RC building with a continuous foundation underwent retrofitting, involving
the addition of a slab foundation, columns, and shear walls. Additionally, the columns were jacketed with RC, and certain
beams were strengthened using Carbon Fiber Reinforced Polymer (CFRP) fabric and plates. Following the strengthening
process, the building underwent seismic evaluation. First, soil and earthquake parameters were determined based on the soil
investigation report. The strengths of the concrete and steel materials were obtained through laboratory tests. The
strengthened state of the building was modeled using the Midas Gen finite element software and then subjected to nonlinear
push-over analysis. According to the analysis results, the building was found to satisfy the Controlled Damage performance
target for the DD-2 Earthquake Ground Motion Level envisaged in the local seismic code, TBEC 2018. Furthermore, the
strengthened foundation exhibited adequate strength and met the safety limit for soil pressures.