Yüzeysel Temelli̇ Yapi Grubunun Di̇nami̇k Davranişinin İncelenmesi̇

Abstract

In this study, dynamic behaviours of a structure group with shallow foundations have been investigated using 2D finite element methods. In the first stage, the structures were subjected to an earthquake in E-W direction (x-x); in the second stage, the structures were subjected to the same earthquake in N-S direction (y-y). Considering different number of floors in the structure group, the maximum displacement value in the N-S direction was 0.55 m, obtained at the top of the 5-storey building. In a building with a same floor number, when the foundation width in increased by two times, lower horizontal displacement values are obtained. When the conditions are compared in which the structure group is subjected to earthquake in both directions; the displacement values obtained in the N-S direction are reduced by 50% compared to the displacement values obtained in the E-W direction. The direction of an earthquake is one of an important parameters in structural design in the earthquake vulnerable regions. The study area is located within a fault zone of a E-W slip direction. Therefore, dynamic analysis shows that the buildings with E-W directions were less vulnerable than buildings with the same structural characteristics in N-S directions.