This paper describes the results of vibration tests using a 1/10 reduced scale model of large-scale cylindrical water storage tanks to clarify their dynamic behavior under seismic excitation. The thin sidewall of the tanks is not so rigid that the vibration modes (sloshing and bulging) induced by earthquake can affect the distribution of their liquid pressure and seismic load. It is, therefore, important for the seismic design of water storage tanks to consider such elastic deformation theoretically and experimentally. In this study, vibration tests by shaking table are conducted using a reduced scale tank model partially filled with water to investigate the dynamic fluid pressure behavior and seismic-proof safety of the tanks. A small sinusoidal excitation test, large amplitude sinusoidal excitation test and seismic excitation test are conducted. The measured values are compared with the calculated ones by some conventional seismic design methods. The results reveal that the distribution shape and magnitude of the dynamic fluid pressure are different between under positive and negative pressures and depend on the magnitude of input acceleration. Further examination concludes that the oval-type vibration, which is a high-order vibration mode, occurring on the sidewall of the tanks affects the distribution shape and magnitude of dynamic fluid pressure. However, it is demonstrated that the vibration does not act as a seismic load in the conventional evaluation of seismic-proof safety.
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October 2010
Research Papers
Vibration Test of a 1/10 Reduced Scale Model of Cylindrical Water Storage Tank Available to Purchase
Akira Maekawa,
e-mail: [email protected]
Akira Maekawa
Institute of Nuclear Safety System, Inc.
, 64 Sata, Mihama-cho, Mikata-gun, Fukui 919-1205, Japan
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Yasutaka Shimizu,
e-mail: [email protected]
Yasutaka Shimizu
Kansai Electric Power Co., Inc.
, 1-1, Ohshima, Ohi-cho, Ohi-gun, Fukui 919-2101, Japan
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Michiaki Suzuki,
e-mail: [email protected]
Michiaki Suzuki
Kawasaki Plant Systems, Ltd.
, 11-1, Minamisuna, 2-chome, Koto-ku, Tokyo 136-8588, Japan
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Katsuhisa Fujita
e-mail: [email protected]
Katsuhisa Fujita
Osaka City University
, 3-3-138, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
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Akira Maekawa
Institute of Nuclear Safety System, Inc.
, 64 Sata, Mihama-cho, Mikata-gun, Fukui 919-1205, Japane-mail: [email protected]
Yasutaka Shimizu
Kansai Electric Power Co., Inc.
, 1-1, Ohshima, Ohi-cho, Ohi-gun, Fukui 919-2101, Japane-mail: [email protected]
Michiaki Suzuki
Kawasaki Plant Systems, Ltd.
, 11-1, Minamisuna, 2-chome, Koto-ku, Tokyo 136-8588, Japane-mail: [email protected]
Katsuhisa Fujita
Osaka City University
, 3-3-138, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japane-mail: [email protected]
J. Pressure Vessel Technol. Oct 2010, 132(5): 051801 (13 pages)
Published Online: August 31, 2010
Article history
Received:
June 9, 2006
Revised:
May 8, 2010
Online:
August 31, 2010
Published:
August 31, 2010
Citation
Maekawa, A., Shimizu, Y., Suzuki, M., and Fujita, K. (August 31, 2010). "Vibration Test of a 1/10 Reduced Scale Model of Cylindrical Water Storage Tank." ASME. J. Pressure Vessel Technol. October 2010; 132(5): 051801. https://doi.org/10.1115/1.4001915
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