Liquid storage tanks under seismic excitations [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 1993.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: 7 pages : digital, PDF file
Additional Creators:: Argonne National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

The safety and reliable performance of nuclear power plants is of great concern to both the nuclear community and the general public. A nuclear power plant has to be designed to withstand any earthquakes that may occur at its location. Since a nuclear power plant has many liquid storage tanks, the dynamic response of these tanks under seismic excitations must properly analyzed in order to design these tanks to survive the earthquakes to which they may be subjected. The dynamic response of liquid-storage tanks subjected to ground excitations has been the subject of numerous studies in the past thirty years. However, most of the studies were focused on the responses of the tanks such that the contained liquid can be considered to be incompressible and inviscid. Thus, the effect of liquid viscosity on the dynamic response of the liquid-tank system is often ignored. This is justified for water-storage tanks because water has a very small viscosity. However, there are cases where the liquid viscosity is not small in comparison with that of water. For such cases the designs of these tanks based on the inviscid assumption become questionable, and the effect of viscosity on the dynamic response needs to be assessed. To the best of our knowledge, due to the complexity of the problem, the effect of viscosity has not been studied satisfactorily to date. Since the governing equations are very complicated if viscosity is included in the analysis, the closed form solutions in most cases are unattainable. Therefore, it is necessary to use a computer code to solve the equations-numerically. The computer code used in this study is the finite element code, FLUSTR-ANL(FLUid-STRucture interaction code developed at Argonne National Laboratory) (Chang et al.1988). In this study, the tanks are assumed to be rigid and rigidly supported on their bases, and the responses are considered to be linear.

Report Numbers:

E 1.99:anl/re/cp--78653
E 1.99: conf-930803--20
conf-930803--20
anl/re/cp--78653

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Note:

Published through SciTech Connect.
08/01/1993.
"anl/re/cp--78653"
" conf-930803--20"
"DE93019021"
12. biennial conference for the International Association for Structural Mechanics in Reactor Technology (SMIRT 12),Stuttgart (Germany),16-26 Aug 1993.
Uras, R.A.; Tang, Yu; Chang, Yao W.

Funding Information:

W-31109-ENG-38

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