Wave-in-Deck Forces on Offshore Platforms
Author:
Bea R. G.1, Iversen R.1, Xu T.1
Affiliation:
1. Ocean Engineering Graduate Program, Marine Technology & Management Group, University of California at Berkeley, Berkeley, CA 94702
Abstract
The extreme condition storm wave crest heights for many older platforms indicate that there would be “green water” in the lower decks. The API guidelines to determine wave forces acting on the decks of these platforms indicate that most platforms cannot survive such loadings. The decks must either be removed or the decks raised to clear the specified wave crests. A variety of laboratory tests have been performed to address this problem. Several approaches have been developed to compute the wave crest loadings and the responses of the platforms to the loadings. There have been many instances in which platforms have experienced significant wave loadings in their lower decks during hurricanes. Some of these platforms have survived and some have failed. This paper summarizes results from a study of laboratory test results and the performance of platforms in the Gulf of Mexico that have survived and failed during hurricane wave loadings in their decks. Modifications to the API deck wave force guidelines are discussed and validated with laboratory test data and platform field performance during hurricanes.
Publisher
ASME International
Subject
Mechanical Engineering,Ocean Engineering
Reference55 articles.
1. Bea, R. G., Ramos, R., Valle, O., Valdes, V., and Maya, R., 1998, “Risk Assessment & Management Based Hurricane Wave Criteria for Design and Requalification of Platforms in the Bay of Campeche,” Proc., Offshore Technology Conference, Society of Petroleum Engineers, Richardson, TX. 2. Bayazitoglu, Y. O., Molina, O. V., and Rubio, V. V., 1998, “Assessment of Bay of Campeche Facilities,” Proc., International Conference on Offshore Mechanics and Arctic Engineering, Safety & Reliability Symposium, American Society of Mechanical Engineers, New York, NY. 3. American Petroleum Institute, 1996, Recommended Practice for Planning, Designing, and Constructing Fixed Offshore Platforms-Working Stress Design, Supplement 1, Washington, DC. 4. Bea, R. G., 1975, “Gulf of Mexico Hurricane Wave Heights,” JPT, J. Pet. Technol., 41, Society of Petroleum Engineers Richardson, TX. 5. Botelho, D. L. R., Ullmann, R. R., Chancellor, D. P., and Versowsky, P. E., 1994, “A Survey of the Structural Damage Caused by Hurricane Andrew on Some of the Platforms Located in the South Timbalier Area,” Offshore Technology Conference, OTC 7470, Society of Petroleum Engineers, Richardson, TX.
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