Seismic Performance and Failure Mechanisms of Reinforced Concrete Structures Subject to the Earthquakes in Türkiye

Ercan Işık, Fatih Avcil (), Marijana Hadzima-Nyarko (), Rabia İzol, Aydın Büyüksaraç, Enes Arkan, Dorin Radu and Zeki Özcan
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Ercan Işık: Department of Civil Engineering, Bitlis Eren University, Bitlis 13100, Türkiye
Fatih Avcil: Department of Civil Engineering, Bitlis Eren University, Bitlis 13100, Türkiye
Marijana Hadzima-Nyarko: Department of Civil Engineering, Josip Juraj Strossmayer University of Osijek, Vladimira Preloga 3, 31000 Osijek, Croatia
Rabia İzol: Department of Civil Engineering, Middle East Technical University, Ankara 06100, Türkiye
Aydın Büyüksaraç: Vocational School, Çanakkale 18 Mart University, Çanakkale 17400, Türkiye
Enes Arkan: Department of Architecture, Bitlis Eren University, Bitlis 13100, Türkiye
Dorin Radu: Faculty of Civil Engineering, Transilvania University of Brașov, 500152 Brașov, Romania
Zeki Özcan: Department of Civil Engineering, Sakarya University, Sakarya 54100, Türkiye

Sustainability, 2024, vol. 16, issue 15, 1-31

Abstract: Many reinforced-concrete structures collapsed or were seriously damaged in the 7.7 and 7.6 magnitude earthquakes that occurred in southern Türkiye on 6 February 2023. The recorded peak ground accelerations were quite high (2.2 g) and the recorded motions’ elastic acceleration response spectra were significantly greater than the elastic design spectra given by the most recent Turkish seismic design code. A total of 518,000 houses were heavily damaged or collapsed in the eleven cities affected by the earthquake. More than 53,000 people lost their lives and over 100,000 people were injured, the majority of these injurits caused by the collapse of reinforced concrete structures. Post-earthquake damage assessments are important in the context of applying sustainability principles to building design and construction. In this study, post-earthquake damage assesments and evaluations were made for the reinforced-concrete structures that were exposed to destruction or various structural damage in Hatay, Kahramanmaraş and Adıyaman, which where most affected after the Kahramanmaraş earthquakes. The RC building damage and failure mechanisms resulting from field observations were evaluated in detail from a broad performance-based structural and earthquake engineering perspective. Information about Kahramanmaraş earthquakes is given briefly. Design spectra and spectral accelerations were compared for the earthquake stations in these three provinces. Soft/weak story, short column, insufficiently reinforced-concrete, and poor workmanship are the primary causes of structural damage, which cause earthquake weaknesses in these buildings.

Keywords: Kahramanmaraş; earthquake; reinforced concrete; failure mechanism (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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