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The Ultimate Strength of Cylindrical Liquid Storage Tanks Under Earthquakes: Elasto-Plastic Dynamic Analysis With FSI of Buckling Failure Modes

[+] Author Affiliations
Akira Mikami, Yuji Sato, Akihito Otani, Kosuke Iwamoto

IHI Corporation, Yokohama, Japan

Toru Iijima

Japan Nuclear Energy Safety Organization, Tokyo, Japan

Paper No. PVP2009-77067, pp. 319-324; 6 pages
  • ASME 2009 Pressure Vessels and Piping Conference
  • Volume 8: Seismic Engineering
  • Prague, Czech Republic, July 26–30, 2009
  • Conference Sponsors: Pressure Vessels and Piping
  • ISBN: 978-0-7918-4371-0 | eISBN: 978-0-7918-3854-9
  • Copyright © 2009 by ASME


The objective of this study is to simulate the shaking test of a condensate storage tank (CST). In this test, the typical failure mode was an elephant-foot bulge (EFB) or a shear buckling. It is difficult to reproduce such buckling modes. However, at last, an analytical model which describes those modes with enough accuracy was achieved. The comparison between simulation results and experiments is explained. Acoustic theory and classical plasticity theory were used in the FEM simulation. The phase and magnitude of the response acceleration and hydraulic pressure obtained from the FEM simulation are well corresponded to those from the experiments. In addition, asymmetrical distribution of maximum and minimum hydraulic pressure is described.

Copyright © 2009 by ASME



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