Reconnaissance report on damage caused by the February 6, 2023, Kahramanmaras, Earthquakes in reinforced-concrete structures

Abstract

Two destructive earthquakes occurred in Kahramanmaras, on February 6th, 2023, with magnitudes of Mw = 7.7 and Mw = 7.6, respectively, causing loss of lives and economic loses. A field investigation was carried out in the affected area between February 12th and 26th, 2023, and the findings are detailed in this paper focusing on the damages and causes of failures in reinforced concrete (RC) structures, both in terms of structural and non-structural elements. The seismic history, characteristics of earthquakes, and an assessment of strong ground motion results are also summarized. Recommendations are provided to mitigate future earthquake-induced damages and save lives.