Examination of the Vertical Earthquake Force on a Sample Building With Different Outputs According To Tec2018

Abstract

The concept of vertical spectrum started to be implemented in Turkey with the Turkish Building Earthquake Code 2018 (TEC 2018) regulation. Before this regulation, earthquake analysis was carried out under horizontal loads with only the horizontal spectrum in buildings and it was predicted to stay on the safe side with the axial load limitation made on the columns. In TEC 2018, vertical earthquake analysis is performed depending on the structural defects in the structures. In this study, vertical earthquake analyzes were carried out on building samples with different ratios of cantilever overhangs. During these analyses, the vertical earthquake acceleration assumption made in the earthquake code and the analysis results obtained from the vertical earthquake spectrum were examined. For this purpose, firstly, horizontal earthquake forces under equivalent earthquake force, axial load levels on the columns and sectional effects and displacements on the cantilever supports were obtained on the structures. These results were compared with the data obtained from the vertical spectrum analysis with the response spektrum method, which is the dynamic analysis. The results obtained show that the assumptions made in the equivalent earthquake load method are on the safe side.