This paper illustrates an example of seismic analysis of a thin wall cylindrical tank used in the wine industry. A FEM-based approach, based on response spectrum analysis, is used to simulate the seismic response of the tank/liquid system to horizontal earthquake action. The tank/liquid system is modeled by shell elements and displacement-based fluid elements, respectively. Simulations results are compared with estimations given by Eurocode 8 (Part 4), according to two different approaches: a simplified lumped dynamic model by Malhotra, a FEM-based static analysis with the hydrodynamic pressure computed by Eurocode 8. The different approaches are shown to provide a general agreement for the shear and overtuning moment at the tank base. Elastic and elasto-plastic buckling of the tank wall is finally assessed with the stress values calculated by the previous approaches.

Seismic analysis of a liquid storage tank used in wine industry: a FEM-based approach

BENASCIUTTI, Denis;MORO, Luciano;
2014-01-01

Abstract

This paper illustrates an example of seismic analysis of a thin wall cylindrical tank used in the wine industry. A FEM-based approach, based on response spectrum analysis, is used to simulate the seismic response of the tank/liquid system to horizontal earthquake action. The tank/liquid system is modeled by shell elements and displacement-based fluid elements, respectively. Simulations results are compared with estimations given by Eurocode 8 (Part 4), according to two different approaches: a simplified lumped dynamic model by Malhotra, a FEM-based static analysis with the hydrodynamic pressure computed by Eurocode 8. The different approaches are shown to provide a general agreement for the shear and overtuning moment at the tank base. Elastic and elasto-plastic buckling of the tank wall is finally assessed with the stress values calculated by the previous approaches.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11390/1006747
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