Full Content is available to subscribers

Subscribe/Learn More  >

Truss Spar Structural Design for West Africa Environment

[+] Author Affiliations
J. Wang, Y. H. Luo, R. Lu

CSO Aker Engineering, Inc., Houston, TX

Paper No. OMAE2002-28245, pp. 489-496; 8 pages
  • ASME 2002 21st International Conference on Offshore Mechanics and Arctic Engineering
  • 21st International Conference on Offshore Mechanics and Arctic Engineering, Volume 1
  • Oslo, Norway, June 23–28, 2002
  • Conference Sponsors: Ocean, Offshore, and Arctic Engineering Division
  • ISBN: 0-7918-3611-8 | eISBN: 0-7918-3599-5
  • Copyright © 2002 by ASME


As the Truss Spar gains greater recognition by the offshore industry, it is expected that more Truss Spars will be built for deepwater oil and gas development not only for the Gulf of Mexico, but also for offshore West Africa, Brazil, and other deepwater fields. The offshore West Africa environment is known to have long-period swells with period in excess of 20 seconds although its 100-year extreme wave height and wind speed are significantly lower than those for the Gulf of Mexico. The long-period swells present unique challenges for structural design of the Truss Spar. In particularly, heave motions and structural fatigue caused by the swells can be significant and must be addressed early in the design process. A comparative study between a Truss Spar and a Classic Spar on global motions is provided in this paper. Inplace strength and fatigue performance is investigated using a generic Truss Spar model for both the Gulf of Mexico and West Africa environments. Motion RAOs, loads, structural strength and fatigue results are presented to illustrate the findings.

Copyright © 2002 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In