Seismic isolation of cylindrical liquid storage tanks

  • Seismic excited liquid filled tanks are subjected to extreme loading due to hydrodynamic pressures, which can lead to nonlinear stability failure of the thinwalled cylindrical tanks, as it is known from past earthquakes. A significant reduction of the seismically induced loads can be obtained by the application of base isolation systems, which have to be designed carefully with respect to the modified hydrodynamic behaviour of the tank in interaction with the liquid. For this reason a highly sophisticated fluid-structure interaction model has to be applied for a realistic simulation of the overall dynamic system. In the following, such a model is presented and compared with the results of simplified mathematical models for rigidly supported tanks. Finally, it is examined to what extent a simple mechanical model can represent the behaviour of a base isolated tank in case of seismic excitation

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Author:Julia Rosin, Thomas Kubalski, Christoph ButenwegORCiD
Parent Title (English):Seismic design of industrial facilities
Publisher:Springer Vieweg
Place of publication:Wiesbaden
Editor:Sven Klinkel, Christoph Butenweg, Gao Lin, Britta Holtschoppen
Document Type:Conference Proceeding
Year of Completion:2013
Date of the Publication (Server):2023/01/24
First Page:429
Last Page:440
International Conference on Seismic Design of Industrial Facilities, Aachen, Germany, 26.-27.09.2013.
Institutes:FH Aachen / Fachbereich Energietechnik
collections:Verlag / Springer Vieweg