API RP 2A-WSD: Planning, Designing, and Constructing Fixed Offshore Platforms-Working Stress Design. API RP 2A-WSD. 22nd Edition, November The API tubular joint static design technology has been under continuous development since the first edition of the API RP 2A in In the 3rd edition of API. Abstract This paper provides insights and interpretations regarding the use of API RP2A-WSD 22nd Edition. In , OTC paper # discussed.
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The University of Illinois at Urbana-Champaign, sponsored by API, developed nonlinear finite element models and verified them against available test results. Offshore Technology Conference Disciplines 4. Advanced closed form parametric formulations were developed and verified against these analytical results to reduce scatter and generate more reliable formulation than provided in the API RP 2A WSD 14 th through 21 st Editions.
Sheriff’s Encyclopedic Dictionary of Applied Geophysics, ecition edition. Log in to your subscription Username. In the 9 th edition, issued indifferentiation was introduced in eedition allowable stress formulations for the joint and loading configuration i.
The New API RP 2A, 22nd Edition Tubular Joint Design Practice – OnePetro
Proceedings of an international conference Oceanology: Publishers Content Coverage Privacy. Also introduced in the 14 th Edition was the alternative nominal load approach, which gives equivalent results to the punching shear method Yura, The Simplified Fatigue Design Procedure has been maintained, with the allowable peak hot spot stresses rechecked for editiln new SN curve.
Much further knowledge, including both experimental data and numerical studies, has been gained on the behavior of joints since the API RP 2A 14 th Edition. Proceedings of an International Conference Submersible Technology: The static strength guidance then essentially remained unchanged r;2a all editions up to the 21st, although further recommendations were added on load transfer through the chord in the RPRA Edition 20 issued in In the 3rd edition of API RP2A, issued insome simple recommendations were introduced based on punching shear principles Marshall, Peer reviewed only Published between: Rock Mechanics Symposium and 5th U.
22d models were then used tp2a simulate a wide variety of geometries and static loading conditions, establishing a broader database than available test results.
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SN curves and fatigue design requirements for cast nodes and grouted joints have also been introduced. Proceedings of an international conference Diverless and Deepwater Techology: Fatigue life correction factors for seawater, thickness, and use of weld profile control, grinding, and peening have also been introduced. No tubular joint revisions were made since then, until now. The Task Group also evaluated and upgraded the tubular joint fatigue design procedures.
One significant feature of the new static design formulations is better 22nx of the chord load and geometry effects and the boundary conditions that are not possible with physical testing Pecknold01, 02, Karsan Paragon Engineering Services, Inc.