Analysis of Cylindrical Tanks under the Seismic Load

Abstract:

The paper deals with cylindrical tanks. Structures of this type have been used in hydraulic engineering, e.g. water towers, sewerage plant tanks. In recent years, cylindrical tanks have been also used in biogas management as fermentation and storage tanks.While the standard hydrostatic load acts symmetrically, it evokes the rotary symmetric load. During the seismic event, the load acts in one direction only, i.e. in the direction of earthquake. This load imposes a non-symmetrical loading of a structure. By a combination of individual loads the resulting forces are slightly non-symmetrical.Specific tank has been modeled. In one model, the solution is made using the quasi-static load induced by the hydrodynamic pressure according to the standard EC1998, part 4 [12]. The other model is presented as a calculation using the modal and spectral analyses under the seismic load. At the conclusion, these two solutions have been compared.

• Periodical: Key Engineering Materials (Volume 691)
• Pages: 285-296
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.691.285
• Online since: May 2016
• Authors: Norbert Jendzelovsky*, Lubomír Baláž
• Keywords: ANSYS, Computing Model, Cylindrical Tank, Finite Element Method, Seismic Load

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