Evaluating Seismic Fragility and Code Compliance of Turkish Reinforced Concrete Buildings After the February 6, 2023, Maras Earthquake

This study evaluates the seismic performance of Turkish building stock after the February 6, 2023, Maras earthquakes. Sixty reinforced concrete buildings, designed under Turkish Earthquake Codes (TEC) TEC-1975 and TEC-1998, were analyzed using nonlinear time history analyses with 46 acceleration records. Results highlight that newer buildings show better seismic resilience, with lower collapse rates compared to older structures. Despite updated regulations, non-compliance in construction practices remains a critical issue. The findings emphasize the importance of improved supervision and workmanship, alongside regulatory adherence, to reduce building collapse and enhance earthquake resilience in Turkey.