LIQUEFACTION CONSIDERATIONS IN THE DESIGN OF PILED OFFSHORE STRUCTURES

Fixed offshore structures in seismic areas may be subject to intensive ground shaking causing partial or total liquefaction of the foundation soils. This paper discusses design experience with a major steel offshore platform where the soil was determined to have a high potential for liquefaction to a depth of 66 feet below seabed. The procedure used in the analysis is discussed and the results summarized. The effects of liquefaction on the design of the platform proved to be not significant. This required an increase of approximately 1.6 percent in the tower and foundation steel tonnage.

• Supplemental Notes:
  • Presented at the Eighth Annual Offshore Technology Conference, Houston, Texas, May 3-6, 1976.
• Corporate Authors:

  Offshore Technology Conference

  6200 North Central Expressway
  Dallas, TX  United States  45206
• Authors:
  • Kallaby, J
  • Capanoglu, C
• Conference:
  • Presented at the Eighth Annual Offshore Technology Conference, Houston, Texas, May 3-6, 1976.
• Publication Date: 1976-5

Media Info

• Features: References;
• Pagination: p. 589-604

Subject/Index Terms

• TRT Terms: Offshore platforms; Offshore structures; Pile foundations; Structural design
• Old TRIS Terms: Offshore platform design
• Subject Areas: Bridges and other structures; Design; Marine Transportation;

Filing Info

• Accession Number: 00138258
• Record Type: Publication
• Source Agency: Offshore Technology Conference
• Report/Paper Numbers: V3, OTC 2670 Proceeding
• Files: TRIS
• Created Date: Sep 4 1976 12:00AM