30 CFR 250.908 - What are the minimum structural fatigue design requirements?

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§ 250.908 What are the minimum structural fatigue design requirements?
(a) API RP 2A-WSD, Recommended Practice for Planning, Designing and Constructing Fixed Offshore Platforms (as incorporated by reference in § 250.198), requires that the design fatigue life of each joint and member be twice the intended service life of the structure. When designing your platform, the following table provides minimum fatigue life safety factors for critical structural members and joints.
If . . . Then . . .
(1) There is sufficient structural redundancy to prevent catastrophic failure of the platform or structure under consideration, The results of the analysis must indicate a maximum calculated life of twice the design life of the platform.
(2) There is not sufficient structural redundancy to prevent catastrophic failure of the platform or structure, The results of a fatigue analysis must indicate a minimum calculated life or three times the design life of the platform.
(3) The desirable degree of redundancy is significantly reduced as a result of fatigue damage, The results of a fatigue analysis must indicate a minimum calculated life of three times the design life of the platform.
(b) The documents incorporated by reference in § 250.901 may require larger safety factors than indicated in paragraph (a) of this section for some key components. When the documents incorporated by reference require a larger safety factor than the chart in paragraph (a) of this section, the requirements of the incorporated document will prevail.

Title 30 published on 2013-07-01

The following are only the Rules published in the Federal Register after the published date of Title 30.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2013-10-01; vol. 78 # 190 - Tuesday, October 1, 2013
    1. 78 FR 60208 - Oil and Gas and Sulphur Operations in the Outer Continental Shelf—Adjustment of Service Fees
      GPO FDSys XML | Text
      DEPARTMENT OF THE INTERIOR, Bureau of Safety and Environmental Enforcement
      Final rule.
      This final rule becomes effective on October 1, 2013.
      30 CFR Part 250

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United States Code
U.S. Code: Title 30 - MINERAL LANDS AND MINING
U.S. Code: Title 31 - MONEY AND FINANCE
U.S. Code: Title 43 - PUBLIC LANDS

Title 30 published on 2013-07-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 30 CFR 250 after this date.

  • 2013-10-01; vol. 78 # 190 - Tuesday, October 1, 2013
    1. 78 FR 60208 - Oil and Gas and Sulphur Operations in the Outer Continental Shelf—Adjustment of Service Fees
      GPO FDSys XML | Text
      DEPARTMENT OF THE INTERIOR, Bureau of Safety and Environmental Enforcement
      Final rule.
      This final rule becomes effective on October 1, 2013.
      30 CFR Part 250