Buckling of Oil Storage Tanks in SPPL Tank Farm During the 1979 Imperial Valley Earthquake

[+] Author and Article Information
C.-F. Shih

Jet Propulsion Laboratory

C. D. Babcock

Graduate Aeronautical Laboratories, California Institute of Technology, Pasadena, Calif. 90019

J. Pressure Vessel Technol 109(2), 249-255 (May 01, 1987) (7 pages) doi:10.1115/1.3264904 History: Received July 17, 1984; Revised December 11, 1985; Online November 05, 2009


An oil storage tank that suffered damage during the 1979 Imperial Valley earthquake is studied using a laboratory model. The tank is unanchored and includes a floating roof. The tank is subjected to a single horizontal axis base excitation. Buckling is studied under both harmonic and simulated earthquake base motion. The model buckling results are in reasonable agreement with the field observations. It was also found that the floating roof has no effect on the buckling behavior. Comparison with the API design provisions shows that the empirical model used as the basis of the code for both tip-over and buckling have little resemblance to the actual tank behavior.

Copyright © 1987 by ASME
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