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    Field Observations and Numerical Investigations on Seismic Damage Assessment of RC and Masonry Minarets During the February 6th, 2023, Kahramanmaraş (Mw 7.7 Pazarcık and Mw 7.6 Elbistan) Earthquakes in Türkiye
    (Taylor & Francis Inc, 2024) Atmaca, Barbaros; Atmaca, Esin Erturk; Roudane, Boudjamaa; Gules, Osman; Demirkaya, Eren; Aykanat, Batuhan; Altunisik, Ahmet Can
    On February 6, 2023, two massive earthquakes struck the EasternAnatolian Fault Line (EAF) at 9-hour intervals. The Mw 7.7 and Mw 7.6 earthquakes were located in Pazarcik and Elbistan districts inKahramanmaras province. These earthquakes directly damaged 11 provinces in Eastern and Southeastern Anatolia (Kahramanmaras,Hatay, Adyaman, Osmaniye, Gaziantep, Sanlurfa, Malatya, Diyarbakir,Adana, Kilis, and Elazig), causing substantial loss of life and property. This study aims to present the field investigation of reinforced concrete (RC) and masonry minarets in 11 cities around the area after these earthquakes and the structural performance and collapse mechanism of two minarets selected as case studies. For this purpose, the damaged or collapsed minarets in the region affected by the earthquakes were determined and the reasons were explained. In addition, an RC and a masonry minaret in the Islahiye district were chosen as case studies, and finite element models (FEM) were created.The validity and correctness of the reasons for damages determined by field observations were further demonstrated by numerical findings.It was determined that nearly all of the damaged and collapsed minarets did not obtain proper engineering services. Additionally, it is believed that the lack of any norms or regulations for these unique constructions is a significant weakness that places engineers in a challenging situation throughout the design phase
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    On the earthquake-related damages of civil engineering structures within the areas impacted by Kahramanmaraş earthquakes
    (2023) Atmaca, Barbaros; Arslan, Mehmet Emin; Emiroğlu, Mehmet; Altunışık, Ahmet Can; Adanur, Süleyman; Demir, Aydın; Günaydın, Murat
    Two major earthquakes occurred on the Eastern Anatolian Fault Line (EAF) on February 6, 2023, with an interval of nine hours. These earthquakes, measuring Mw 7.7 and Mw 7.6, were centered in the districts of Pazarcık and Elbistan in the province of Kahramanmaraş. They directly affected 11 provinces (Kahramanmaraş, Hatay, Adıyaman, Osmaniye, Gaziantep, Şanlıurfa, Malatya, Diyarbakır, Adana, Kilis, and Elazığ) in the Eastern and Southeastern Anatolia, caused significant loss of life and property. This study aims to present the field investigation and performance evaluation of engineering structures in the mentioned cities. The types of damages occurring in the reinforced concrete (RC) and masonry buildings, historical and industrial structures, bridges, and mosques were given in detail. According to the data of the Ministry of Treasury and Finance of Türkiye, it has been reported that the cost of these earthquakes is approximately 103.6 billion dollars, which corresponds to nine percent of Türkiye's national income expectation for 2023 and causes damage and losses of approximately six times more than the 1999 Marmara earthquake. In the areas affected by earthquakes, many of the errors determined by professionals from previous earthquakes still exist today.