Fragility Analysis of Atmospheric Storage Tanks by Observational and Analytical Data


Bezir F., Ozturk S., Sarı A. , Akgul K.

INTERNATIONAL JOURNAL OF STEEL STRUCTURES, 2022 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Publication Date: 2022
  • Doi Number: 10.1007/s13296-021-00567-x
  • Title of Journal : INTERNATIONAL JOURNAL OF STEEL STRUCTURES
  • Keywords: Atmospheric storage tanks, Fragility curves, Finite element analysis, Structural reliability, Uncertainty, Seismic analysis, 1999 KOCAELI-EARTHQUAKE, INDUSTRIAL FACILITIES, SEISMIC RISK, DAMAGE, FRAMEWORK, LESSONS

Abstract

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 defined. 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.