Seismic response of large suspended tanks. [LMFBR]

The response of the large-diametered liquid-filled tank under seismic disturbances is studied in this paper with the emphasis on the effects of the bottom-plate vibration on fluid dynamic pressure and free-surface sloshing. The fluid in the tank is treated as a continuum medium, which is quite different from the conventional method that treats the fluid as an added mass attached on the tank wall. As a result, important effects such as free-surface sloshing, fluid-structure interaction, flexibility of tank are included in the analysis.