Parameters Influence of 150000m³ Base Isolation Storage Tank with Floating Roof

Abstract:

Selecting 150000m3 storage tank as research object, the base isolation system was introduced and allowing for the impact of floating roof to study the seismic response of vertical storage tanks. The finite element models were established by using ADINA. The damping rate of floating-roof storage tank in multi-direction seismic excitation, and the damping rate of base isolation vertical storage tank in different isolation layer damping ratio, isolation periods were calculated respectively and comparative analyzed. The results indicate that: the damping rate of hydrodynamic pressure in three-dimensional seismic excitation is less than that of unidirectional, little change in the damping rate of base shear and overturning moment, sloshing wave height control action is not obvious. With the isolation period and isolation layer damping ratio increases, the damping rate of base shear, overturning moment, and hydrodynamic pressure are all increase. Isolation measures can not effectively control the sloshing wave height, and the isolation period and the isolation layer damping ratio have a reasonable optimization range.

• Periodical: Advanced Materials Research (Volumes 524-527)
• Pages: 1839-1843
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.524-527.1839
• Online since: May 2012
• Authors: Ying Sun, Jian Gang Sun, Li Fu Cui
• Keywords: Base Isolation, Seismic Response, Three-Dimensional Seismic Excitation, Vertical Storage Tanks with Floating Roof

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