Numerical Analysis of Buildings in Golbasi During the 2023 Turkey-Syria Earthquake

Abstract

On February 6, 2023, earthquakes of Mw 7.8 and Mw 7.5 occurred in south-eastern Turkey. In Golbasi, located on the East Anatolian Fault, severe damages such as building subsidence and tilting due to liquefaction were observed. In this study, settlement and tilting behavior due to liquefaction of relatively large structures in Golbasi, when adjacent to each other, were reproduced using effective stress analysis. The research results demonstrates that the differential subsidence behavior of adjacent buildings can be replicated. Furthermore, the interference of stresses within the soil beneath adjacent structures resulted in behaviors such as inward collapsing or conversely an outward leaning differential subsidence. This study also discusses the subsidence trends associated with varying distances between structures and varying in the embedment depth of shallow foundations. © 2024, International Association for Earthquake Engineering. All rights reserved.