Seismic Performance Assessment of a Strengthened RC Building: A Case Study


Güneş B., Samadi K., Sayın B.

28th International Scientific Conference MECHANIKA 2024, Kaunas, Litvanya, 31 Mayıs 2024, ss.13-18, (Tam Metin Bildiri)

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Kaunas
  • Basıldığı Ülke: Litvanya
  • Sayfa Sayıları: ss.13-18
  • İstanbul Üniversitesi-Cerrahpaşa Adresli: Evet

Özet

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.