Basınçlı Tankların Sismik Kırılganlıklarının Gözlemsel ve Sayısal Olarak İncelenmesi

In this study, fragility curves were derivated by combining the results obtained in nonlinear time history analyzes and damage data observed in past earthquakes for spherical tanks. In addition, damage data of horizontal cylindrical tanks were collected. As a result of these studies, it has been observed that the observational damage data obtained from past earthquakes related to spherical and horizontal cylindrical pressure tanks are quite low compared to atmospheric cylindrical tanks. For this reason, data for spherical tanks have been supported by numerical studies. As a result of the numerical analysis, it was observed that in spherical tanks, stress concentrations occurred in the braced members and these elements ruptured at the connection points with the columns. By adding the damage data obtained from the analyzes to the existing data, the fragility curves for spherical tanks were created. It is thought that the fragility curves, which present the relationship between the ground motion intensity measure and the probability values of damages that may occur in possible earthquakes, will also have a positive effect on the development of future studies.