Investigation of the effects of changing earthquake regulations on building performance and costs

In In this thesis, it is aimed to compare the performance differences and costs in reinforced concrete buildings as a result of the changes in the earthquake regulations of TDY-2007 and TBDY-2018. For this purpose, mod-1 mod-2 mod-3 mod-4 mod-5 mod-6 reinforced concrete structures and 6 models in total were drawn with IDACAD static package program and earthquake performance analyzes were calculated. The rough construction quantities were extracted and cost calculations were made, and the analysis changes and costs experienced by each building with the change in the directive were compared. As a result, in this thesis study, the changes in the TBDY-2007 and TBDY-2018 earthquake regulations and the changes in the performance analysis of reinforced concrete structures were observed and how they affected the costs was determined. Examining the analysis data made according to both earthquake codes, among the selected examples, with the increase in the number of floors of the building, there was a relative increase in the costs, while improvements in the building performances were observed. It was determined that the cost differences in the building samples selected for this thesis were 1.29%, 24.86% and 31.06%, respectively.