An approach for seismic damage assessment of residential buildings /


Thesis Type: Post Graduate

Institution Of The Thesis: Orta Doğu Teknik Üniversitesi, Department of Civil Engineering, Turkey

Approval Date: 2014

Student: CEREN DEMİRCİ

Co-Consultant: AYŞEGÜL ASKAN GÜNDOĞAN, MURAT ALTUĞ ERBERİK

Abstract:

For developing countries in earthquake-prone regions, two main issues in seismic damage estimation are identification of seismic hazard in the region of interest and up-to-date information of the existing building stock. This study proposes an approach to handle these key issues and to obtain reliable measures for regional seismic damage estimation. The approach makes use of the basic structural information for different types of construction. This information can be readily available or may have been obtained after conducting a walk-down (street) survey in the region of interest. Then these parameters, which reflect the local characteristics of the building stock, are used to classify the residential buildings and to construct idealized SDOF models in order to provide an estimation of seismic damage of the buildings under consideration. After the formation of SDOF models, the seismic response of each building sub-classes are obtained through dynamic analyses. Within the scope of the proposed approach, scenario earthquakes are simulated due to scarcity of the real ground motion records recorded in the region during past earthquakes. The simulated records are obtained with regional seismic parameters regarding the source, path and site effects. The SDOF models are assumed to be subjected to these simulated records in order to obtain the seismic response. At the final step, the SDOF displacements obtained from dynamic analyses are compared vi with pre-defined limit states for different building types and the corresponding damage states of the buildings are estimated. The final part of the study is devoted to the application of the proposed approach to one of the most earthquake-prone regions in Turkey and the world; the city of Erzincan. The results reveal that Erzincan city is under high risk, hence precautions should be taken immediately before an other major earthquake hits to the city.