Design of Karin Deepwater Platform with Respect to Fatigue
Publication: Journal of Structural Engineering
Volume 114, Issue 6
Abstract
A conceptual design of a hexagonal platform for a water depth of 310 m in the North Sea is described. The structure is designed for an extreme wave‐loading condition accounting for dynamic amplification corresponding to a first natural period of 6.0 s. A detailed fatigue analysis of the platform is presented. It has been demonstrated that by a proper design taking into account wave cancellation effects at the design stage it is possible to achieve good fatigue lives beyond the requirements of the Norwegian Petroleum Directorate regulations for this deepwater platform. A study on the effect of the fundamental period on fatigue life has been performed. In addition a full probabilistic analysis of the fundamental period has been carried out. Finally, the expected fatigue life of the platform has been derived, taking into account the uncertainties associated with the fundamental period.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 114 • Issue 6 • June 1988
Pages: 1211 - 1229
Copyright
Copyright © 1988 ASCE.
History
Published online: Jun 1, 1988
Published in print: Jun 1988
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