Frequency Domain Analysis of a Tank-Soil Systemby Medhat Haroun, Univ of California, Irvine, CA, USA,
Essam A. Abdel-Hafiz, Univ of California, Irvine, CA, USA,
Abstract: The dynamic response of an elastic cylindrical tank supported on a rigid base under a harmonic vertical excitation is analyzed taking into consideration its interaction with the foundation soil. In an earlier phase of the study, the soil was represented by frequency-independent parameters, and the two coupled differential equations, governing the motion of the shell and the base, were solved using a step by step time-integration technique. In the present phase, a more representative solution for the problem in the frequency domain is obtained by appropriately modeling the soil by frequency-dependent parameters.
Subject Headings: Soil analysis | Soil-structure interaction | Frequency analysis | Elastic analysis | Cylindrical tanks | Parameters (statistics) | Equations of motion
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