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Tesi etd-04062017-131600


Thesis type
Tesi di laurea magistrale
Author
CACCIATORE, PAMELA
URN
etd-04062017-131600
Title
Seismic vulnerability of horizontal cylindrical tanks in industrial facilities
Struttura
INGEGNERIA CIVILE E INDUSTRIALE
Corso di studi
INGEGNERIA EDILE E DELLE COSTRUZIONI CIVILI
Commissione
relatore Prof. Sassu, Mauro
relatore Ing. Puppio, Mario Lucio
relatore Prof. Butenweg, Christoph
relatore Ing. Sreelakshmy, Rajan
Parole chiave
  • vulnerability
  • fragility curves
  • tank
  • industrial facilities
Data inizio appello
09/05/2017;
Consultabilità
parziale
Data di rilascio
09/05/2020
Riassunto analitico
The purpose of this study is the development of vulnerability curves for a generic industrial facility steel frame, considering the presence of a non-structural element (horizontal cylindrical tank).<br>A simplified procedure to model a generic tank as single degree of freedom systems is illustrated and the calculation of the seismic shear force at the base of the tank is made. In order to evaluate the seismic behaviour of the tank-structure system two different seismic analyses have been conducted and the results compared. <br>Then, the methodology for the development of the fragility curve is illustrated. Specifically, for the study case, a series of nonlinear dynamic analyses are carried out assuming as variable parameters the level of the intensity measure, in terms of Peak Ground Acceleration, and two different properties for the material of the primary structure. The shear force for the tank and the interstorey drift for the structure are assumed as damage measure for the construction of the fragility functions.<br>At the end, a brief overview of the concept of resilience is presented, with the focus on the process to obtain the vulnerability curves in terms of direct economic losses from the fragility curves, once different limit states are defined.<br>
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