Aris Kampanis

Diploma Thesis, July 2010


Seismic actions on a liquid storage tank may cause severe damage. In particular, the occurrence of significant meridional compressive stresses due to the seismic overturning moment can cause buckling, with emphasis on the so-called “elephant’s foot buckling” near the tank shell base. The present thesis is aimed at computing the seismic action in liquid storage tanks of upright cylindrical shape for different liquid heights. Four standards are mainly employed: API 650 (2003) AppendixE, API 650 (2007) AppendixE, EN-1998-4, EN 14015 AnnexG. The differences between the seismic provisions of the above standards are identified. In addition, the seismic action is computed through a finite element model in program ABAQUS. The numerical results are compared with the provisions of the above standards.


a23f1 a23f2

Figure 1

Spyros A. Karamanos, PhD

Department of Mechanical Engineering | University of Thessaly | Pedion Areos, Volos 38334, Greece
Phone: +30 - 24210 74086, 74360 | Fax : +30 - 24210 74360 | Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Go to top