RANDOM RESPONSE OF OFFSHORE STRUCTURES TO WAVE AND CURRENT FORCES

Dynamic responses of offshore structures to random waves and steady current are examined. The structural response quantities examined are the displacement, shear, and bending moment. The statistic sought is the peak response which is the quantity directly used in design considerations. Numerical results are obtained for four offshore towers, ranging in heights from 475 to 1075 feet, for various wave and current conditions. Results are presented graphically. It is shown that structural responses increase with increase in current speed but the effects of wave-current interactions are important only for tall slender structures. Also, the effects of current on structural response diminishes with increase in the strength of the waves.

• Supplemental Notes:
  • A sea grant publication.
• Corporate Authors:

  North Carolina State University, Raleigh

  Department of Civil Engineering
  Raleigh, NC  United States  27695-7908
• Authors:
  • Wu, S C
  • TUNG, C C
• Publication Date: 1975-9

Media Info

• Pagination: 125 p.

Subject/Index Terms

• TRT Terms: Force; Loads; Offshore structures; Structural analysis; Structural mechanics; Waves
• Uncontrolled Terms: Structural response
• Old TRIS Terms: Wave forces on structures; Wave induced loads
• Subject Areas: Bridges and other structures; Marine Transportation; Terminals and Facilities;

Filing Info

• Accession Number: 00139431
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: NOAA-76022006
• Contract Numbers: NOAA-04-3-158-40
• Files: TRIS
• Created Date: Sep 16 1976 12:00AM