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RR88 - Component-based calibration of North West European annex environmental load factors for the ISO fixed steel offshore structures code 19902

Presents the results of the classical component -based approach used in the joint industry project (JIP) to derive extreme environmental load factors for a North West European Annex to the ISO fixed steel offshore structures code 19902. This code introduces new provisions and changes in design practice; which together with a new understanding of the NW Europe environment , meant that it was necessary to review the levels of safety and economy of structures that may be achieved by the use of the new code for the design of NW European fixed offshore steel structures. The main objective of this JIP was to calibrate the load factors for the NW European environment, although other load and resistance factors were also assessed. Developed in collaboration with a broad industry grouping of consultants, oil companies and regulators from across Europe; BOMEL led the JIP load factor calibration phase. The JIP involved calibration using both a system-based approach and a component -based approach. Reports a number of conclusions.

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Updated 2019-09-20