Özet:

In 2008, Istanbul Metropolitan Municipality (IMB) compiled through street/street scans, there are approximately 1.2 million buildings in the Istanbul building inventory. 15% of these buildings (about 180,000) were built in 2000 and later, 5 and above floors, concrete frame-type structures. For these default buildings that were built after 2000 and designed in accordance with the Regulation on structures to be built in Disaster Areas (1998) [1], the design earthquake effects present financial losses caused by structural damage and structural damage. For this purpose, the Urban Earthquake Loss Forecast Module (Hancılar vd., 2010) [3] was used to apply the capacity spectrum method of the ELER (Earthquake Loss Estimation Routine) [2] software. In spectral capacity-based damage analysis, the earthquake demand is represented by the 5 % dissolved elastic drive spectrum, while the building’s horizontal load carrier system is provided with capacity curve and the spectral ground changes are calculated for the possibility of damage for different levels of damage through vulnerability functions. In the analysis of earthquake effects, the chance of vaccination is 10% in 50 years (475 years of repeat period) for Sheşetyan etc. The design spectrums created using ground-dependent spectral impulses (0,2s and 1.0s) provided by (2016) [4] have been taken into account. Damage analyses have been carried out at the same earthquake level, taking into account three different models for building capacity curves and vulnerability functions: i) Istanbul Possible Earthquake Loss Predictions (IBM-2009) [5], used in the study, carrier system capacity curves with structural vulnerability functions based on past analytical studies and expert opinion / opinion; ii) capacity curves and vulnerability functions provided in the HAZUS-MH MR4 (2004) Technical Guide [6] for similar building classes; iii) structural analysis-based capacity curves and vulnerability functions provided in the HAZUS-MH MR4 (2004) Technical Guide [6]; iii) the HAZUS and Cactus (2015) [7] The results of the three models are compared with the number of damaged buildings and distribution of structural damage resulting from financial losses.

Anahtar Kelimeler: