The search result changed since you submitted your search request. Documents might be displayed in a different sort order.
  • search hit 2 of 258
Back to Result List

Analysis Of Base Isolated Liquid Storage Tanks With 3D Fsi-Analysis As Well As Simplified Approaches

  • Tanks are preferably designed, for cost-saving reasons, as circular, cylindrical, thin-walled shells. In case of seismic excitation, these constructions are highly vulnerable to stability failures. An earthquake-resistant design of rigidly supported tanks for high seismic loading demands, however, uneconomic wall thicknesses. A cost-effective alternative can be provided by base isolation systems. In this paper, a simplified seismic design procedure for base isolated tanks is introduced, by appropriately modifying the standard mechanical model for flexible, rigidly supported tanks. The non-linear behavior of conventional base isolation systems becomes an integral part of a proposed simplified process, which enables the assessment of the reduced hydrodynamic forces acting on the tank walls and the corresponding stress distribution. The impulsive and convective actions of the liquid are taken into account. The validity of this approach is evaluated by employing a non-linear fluid-structure interaction algorithm of finite element method. Special focus is placed on the boundary conditions imposed from the base isolation and the resulting hydrodynamic pressures. Both horizontal and vertical component of ground motion are considered in order to study the principal effects of the base isolation on the pressure distribution of the tank walls. The induced rocking effects associated with elastomeric bearings are discussed. The results manifest that base isolated tanks can be designed for seismic loads by means of the proposed procedure with sufficient accuracy, allowing to dispense with numerically expensive techniques.

Export metadata

Additional Services

Share in Twitter Search Google Scholar
Metadaten
Author:J. Rosin, K. Mykoniou, Christoph ButenwegORCiD
Parent Title (English):16th World Conference on Earthquake Engineering, 16WCEE 2017 Santiago Chile, January 9th to 13th 2017
Publisher:Chilean Association on Seismology and Earthquake Engineering (ACHISINA)
Document Type:Conference Proceeding
Language:English
Year of Completion:2017
Date of the Publication (Server):2021/01/06
Tag:elastomeric bearing; friction pendulum bearing; liquid storage tank; seismic isolation; simplified approach
First Page:1
Last Page:14
Note:
Paper No 2246
Link:https://wcee.nicee.org/wcee/article/16WCEE/WCEE2017-2246.pdf
Zugriffsart:weltweit
Institutes:FH Aachen / Fachbereich Energietechnik
collections:Verlag / Chilean Association on Seismology and Earthquake Engineering (ACHISINA)