New improvements in the 2018 Turkish Seismic Code

Turkey has official Seismic Code since 1940’s, which is updated regularly in conformance with the new developments in earthquake engineering, as well as the changing societal needs. The 2018 Seismic Code (AFAD 2018) has improved the 2007 Seismic Code (Ministry 2007) with an expanded content. The main improvements are on the definition of sitespecific design ground motions, and on the seismic design of tall buildings, base isolated buildings and pile foundations. Nonlinear analysis procedures are included as mandatory in particular cases, however advised for performance evaluation for the non-standard practices. From the administrative point of view, a new “Design Review and Supervision” system is established on the non-standard practices, which is a peer review process administered with a central, official public body.
The International Workshop on Advanced Materials and Innovative Systems in Structural Engineering: Seismic Practices IWAMISSE 2018


Performance based design of r/c tall buildings in two different seismic zones
Çiftçioğlu, Mustafa Güneş; Binici, Barış; Department of Civil Engineering (2023-1-20)
Performance-based design of R/C tall structures has become mandatory with Turkish Earthquake Code (2018). While some professionals think that linear capacity design is sufficient, others have supported this new approach only in regions where earthquake is more effective. Nonlinear design requires comprehensive and detailed theoretical knowledge. The compatibility of Perform 3D software, widely used in this design, with experiment results is unknown and calibration is not mandatory in the regulation. It is ...
Guidelines for structural health monitoring systems on tall buildings and a case study
Gümüş, Oğuzhan; Çelik, Ozan Cem; Department of Civil Engineering (2021-2-15)
The new Turkish Building Earthquake Code requires real-time monitoring of the structural response of buildings of Earthquake Design Class 1 and 2 that are taller than 105 m. Structural health monitoring (SHM) systems on tall buildings have to comply with the SHM Guidelines by the Disaster and Emergency Management Presidency of Turkey, developed as part of two research projects that were undertaken at METU and Bogazici University. Two tall buildings in Izmir and Istanbul, respectively, were instrumented as c...
Pros Amd Cons of Assessment Methods in the 2007 Turkish Earthquake Code
Şenboz, Ali; Sucuoğlu, Haluk (2009-01-01)
A new chapter has been added to the 2007 Turkish Earthquake Code for the assessment and retrofit of existing buildings. The assessment procedures proposed In the Code are classified as linear elastic and nonlinear procedures. A research has been conducted in this study in order to evaluate the differences between the two types of seismic assessment procedures in the 2007 Turkish Earthquake Code. For this Purpose, two residential buildings in their existing and retrofitted states were comparatively assessed ...
A Comparative Study on Structural Wall Design Approach of 2007 Turkish Seismic Code
Kurç, Özgür; Lulec, Andac; Ozcebe, Guney (2011-07-01)
The new version of the Turkish Seismic Code was released in 2007 and the capacity design approach for high ductility structural walls was introduced for the first time. The practicing engineers, however, mentioned various problems especially related with the shear design of structural walls. Because of this reason, an in-depth comparative study was conducted to examine the differences and similarities of the design approaches of Turkish Seismic Code, American Reinforced Concrete Code and various studies in ...
Comparative study of commercial structural analysis programs in view of seismic assessment procedures in Turkish earthquake code 2007
Yıldırım, Suat; Akyüz, Uğurhan; Yakut, Ahmet; Department of Civil Engineering (2011)
In Turkey, most of the existing buildings have been designed according to Turkish Earthquake codes of 1975 and 1997. It is a well known fact that, poor material quality, poor design, poor control on site and inadequate workmanship makes existing buildings vulnerable to earthquake. In addition, change in function of buildings becomes another problem. These problems increase the importance of assessment of existing buildings. For this purpose, a new chapter has been added to the new code and assessment method...
Citation Formats
H. Sucuoğlu, “New improvements in the 2018 Turkish Seismic Code,” Istanbul, Turkey, 2018, p. 13, Accessed: 00, 2021. [Online]. Available: