REPAIR OF OFFSHORE STRUCTURES BY UNDERWATER WET WELDING - DESIGN AND FATIGUE ASSESSMENT

Underwater wet welding is an economic alternative for the repair of offshore structures. In this paper, investigations on the fatigue strength of a wet welded pipe structural member are reported. For the connection, a special sleeve patch design has been developed. The joint was fatigue tested. The evaluation of the test was carried out by means of the hot-spot approach with regard to several extrapolation rules of the hot-spot stress. The results were compared to actual classification rules and recommendations.

• Supplemental Notes:
  • PRADS 95, 6th Intl Symposium on Practical Design of Ships and Mobile Units; 17-22 Sept 1995; Seoul, Korea. Procs. Publ by Soc Naval Architects of Korea, ISBN 89-950016-2-3. Vol 2, p 2.934 [12 p, 9 ref, 3 tab, 6 fig]
• Authors:
  • Drohn, A
  • Petershagen, H
• Publication Date: 1995

Language

• English

Subject/Index Terms

• TRT Terms: Fatigue strength; Offshore structures; Repairing; Welding
• Old TRIS Terms: Underwater welding
• Subject Areas: Bridges and other structures; Marine Transportation;

Filing Info

• Accession Number: 00727829
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Nov 4 1996 12:00AM