Seismic performance analysis of Bitlis city

Within the framework of the performance based earthquake engineering, the seismic performance analysis for the Bitlis province in Turkey is performed in probabilistic manner. Within the confines of this study, a seismic hazard analysis, seismic safety evaluation of existing structures using Screening Method, Preliminary Assessment Method, and detailed Structural Analysis, and at the end of the study, a Displacement-Based Earthquake Loss Assessment (DBELA) methodology for urban areas, which compares the displacement capacity of the building stock with the displacement demand from earthquake scenarios, has been applied for loss assessment in Bitlis.It is noteworthy that, in probabilistic seismic hazard assessment, as a first stage, data from geological studies and records from the instrumental period were compiled to make a seismic source characterization for the study region. Then, a seismic hazard model by using EZ-FRISK software is implemented and the probabilistic seismic hazard curves were developed based on the selected appropriate attenuation relationships, at rock sites, with a probability of exceedance of 2%, 10% and 50% in 50-year periods. The obtained results are compared with the spectral responses proposed for seismic evaluation and retrofit of building structure in Turkish Earthquake Code, Section 7.As a second step, seismic safety evaluation of Bitlis City is performed by different methods as Seismic Safety Screening Method, P25-v2 Preliminary Assessment Method and lastly nonlinear static pushover analysis in ETABS. The results obtained in this step are compared and discussed. In detailed structural analysis, both Code proposed earthquake response spectra and computed response spectra from seismic hazard analysis are conducted. The performance evaluations are determined by using FEMA356 numerical acceptance criteria for nonlinear procedures.At the end of this study, within the scope of this thesis, DBELA has been employed in order to calculate the loss assessment calculations for the city of Bitlis have been provided based on scenario earthquakes. The results are presented in terms of social losses and economical losses. Uncertainties of the application have also been discussed.