Analytical evaluation of selected concrete structures against earthquakes in Turkey

Anatolian geography, which is one of the most seismically active regions of the world, has hosted many earthquakes until today. The existence of these frequent destructive earthquakes necessitates a technical examination of the building stock and the urban transformation of risky buildings. The study is located on the East Anatolian Fault Zone in the Anatolian geography, some of the reinforced concrete structures in Dulkadiroğlu, Elbistan and Pazarcık districts of Kahramanmaraş province 1. The level assessment was carried out by taking into account the "Principles Regarding the Determination of Risky Structures" published by the Ministry of Environment and Urbanization in the Official Gazette in 2019. The methods given in these principles are not used for building earthquake performance evaluation and strengthening. According to the methods given in these principles, it does not conclude that the buildings that are not risky meet the earthquake resistant design principles. Within the scope of Law No. 6306, simplified methods that can be used to determine the regional distribution of buildings that can be considered risky in certain areas and to make a prioritization decision, taking into account the characteristics of the building and the earthquake hazard, are given. With this method, calculations were made by taking a total of 120 building samples that make up the urban settlement areas in Dulkadiroğlu, Elbistan and Pazarcık districts of Kahramanmaraş province. In the risk determination of reinforced concrete structures, which are included in the principles for the determination of risky structures, 9% of the buildings examined were determined as very risky, 66% as medium risky, 24% as risky and 1% as risk-free This study will be a source for the building stock studies to be carried out for the province of Kahramanmaraş.