Laterally excited flexible tanks with nonuniform density liquid

Journal Article · Tue Oct 01 04:00:00 EDT 1996 · Journal of Engineering Mechanics

DOI:https://doi.org/10.1061/(ASCE)0733-9399(1996)122:10(948)· OSTI ID:625690

Tang, Yu ^[1]

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1. Argonne National Lab., IL (United States)

A study of the dynamic responses of flexible tanks containing nonuniform liquid under horizontal base excitations is presented. The system considered is an upright, circular cylindrical tank filled with an incompressible and inviscid liquid in which the density increases with the liquid depth. Only the impulsive components of response are considered in this study since the convective components can be computed by considering the tank to be rigid. It is shown in this study that for tanks with height-to-radius ratios between 0.3 and 1.2, the response quantities may be estimated utilizing the rigid tank solutions. Also, it is found that the pressure distribution along the tank wall is not sensitive to the detailed distribution function of the liquid density, and that the base shear and moments for the tank with nonuniform liquid can be estimated conservatively by assuming that the tank is filled with an equivalent uniform liquid density that preserves the total liquid weight. Finally, a simple equation for evaluating the fundamental natural frequency of the system is proposed.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 625690
• Journal Information: Journal of Engineering Mechanics, Journal Name: Journal of Engineering Mechanics Journal Issue: 10 Vol. 122; ISSN 0733-9399; ISSN JENMDT
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
ANL
FLEXIBILITY
GROUND MOTION
HIGH-LEVEL RADIOACTIVE WASTES
MONITORING
RADIOACTIVE WASTE MANAGEMENT
SAFETY ANALYSIS
SEISMIC EVENTS
STABILITY
TANKS
UNDERGROUND STORAGE
US DOE