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Fragility Analysis of Atmospheric Storage Tanks by Observational and Analytical Data
Fırat Bezir,Sezer Öztürk,Ali Sarı,Kayahan Akgül 한국강구조학회 2022 International Journal of Steel Structures Vol.22 No.1
In this research, seismic fragility analysis of storage tanks is carried out with a large damage database from past earthquakes and analytical studies. At the fragility analysis, a new damage state has been defi ned. Peak ground acceleration is employed as an intensity measure. Epistemic and aleatory uncertainties are considered. At the observational fragility analysis, logit, probit and cumulative lognormal model and maximum likelihood method are utilized. In this research, Finite Element Analysis is also performed. As a result, new seismic fragility curves for storage tanks obtained and compared with the existing tank fragility curves in the literature.