RECENT DEVELOPMENTS IN REASSESSMENT OF JACKET STRUCTURES UNDER EXTREME STORM CYCLIC LOADING
An approach to integrity assessment of jacket structures subjected to extreme storm cyclic loading is based on considerations of system strength rather than component strength. The system strength is determined by nonlinear pushover analyses. Nonlinear cyclic analyses are undertaken to determine if the system strength will be degraded due to repeated action of extreme waves. In this series of papers, conditions for application and extension of such a procedure are addressed. Tubular members with D/t ratio in the range 35-80 were tested under extreme cyclic loading to investigate criteria for onset of local buckling and number of cycles to through thickness cracking. Tubular T-joints were tested under extreme cyclic loading to investigate degradation of cyclic capacity imposed by low cycle fatigue cracking. In this paper, an overview of the developed methodology for integrity assessment of jacket structures is given. Conditions for application are addressed and illustrated by way of an example study. See also the following abstract.
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Supplemental Notes:
- OMAE 1995, 14th Intl Conf on Offshore Mechanics & Arctic Engng; 18-22 June 1995; Copenhagen, Denmark. Sponsored by ASME et al. Procs. Publ by ASME, ISBN 0-7918-1307-X. Vol I, Pt B, p 105 [8 p, 7 ref, 7 fig]
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Authors:
- Eide, O I
- Amdahi, J
- Skallerud, B H
- Publication Date: 1995
Language
- English
Subject/Index Terms
- TRT Terms: Buckling; Offshore structures; Repeated loads
- Uncontrolled Terms: Jackets (Structures)
- Subject Areas: Bridges and other structures; Marine Transportation;
Filing Info
- Accession Number: 00718531
- Record Type: Publication
- Source Agency: British Maritime Technology
- Files: TRIS
- Created Date: Mar 27 1996 12:00AM