The magnitude of structures being lifted offshore with wire rope slings is rapidly becoming heavier and heavier. Lifts of 75 to 250 tons are not uncommon. Faced with such load magnitudes, the rigger is many times faced with a delicate problem. He has a multiple choice. He can go by the book and specify a sling based on a Design Factor (DF) of 5, even though such a sling may be inordinately large, heavy, cumbersome, expensive, and, at times, not readily available, if at all. Or, he can lower his sights and specify a sling based on a lower design factor, to down as low as 3. To adopt this latter choice, however, the rigger must be keenly aware of all the factors that affect the strength of the wire rope sling -- and then be able to apply them if the lift is to be made with any degree of confidence and acceptable safety. It is to this end -- the defining, both quantitatively and qualitatively, of the sling strength factors -- that this paper is directed.

Media Info

  • Features: References;
  • Pagination: p. 401-410

Subject/Index Terms

Filing Info

  • Accession Number: 00167635
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: V3, OTC 2929 Proceeding
  • Files: TRIS
  • Created Date: Jan 13 1978 12:00AM