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Published February 1981 | public
Journal Article

Offshore gravity structures; centrifugal modeling


Offshore gravity structure foundations, including their analysis and design, are investigated. The results of an experimental study on the interaction of such structures with their soil foundations when subjected to wave forces are reported. The experimental tests were performed in a centrifuge at 100 g centrifugal acceleration with a 10-cm diam model structure bearing on a normally consolidated desposit of Santa Barbara silt. Therefore, the experimental test results apply to a 10-m diam prototype structure. The model structure was subjected to both monotonic and cyclic, as well as inclined and eccentric loading conditions; and its resulting movements (sinking, sliding and tilting) were recorded.

Additional Information

© 1981 American Society of Civil Engineers. Discussion open until July 1, 1981. Separate discussions should be submitted for the individual papers in this symposium. To extend the closing date one month, a written request must be filed with the Manager of Technical and Professional Publications, ASCE. Manuscript was submitted for review for possible publication on March 5, 1980. This paper is part of the Journal of the Geotechnical Engineering Division, Proceedings of the American Society of Civil Engineers, The model tests and the instrumentation were set up by John Lee, research engineer at California Institute of Technology. The writers would like to acknowledge with appreciation the attention and interest paid to this research project by J. C. Pearce of Chevron Oil Research Company.

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