Lifting precast bridge beams: engineering is the issue: update concerning strand loops vs system solutions

This paper reviews the use of loops of prestressing strand cast into precast elements – particularly bridge beams – for the purpose of creating lifting connection points. Current and previous standards and industry guidance are referred to as well as some analysis of industry experience with strand loop lifting and the engineering issues involved. It concludes that there is little to justify current practice and much to discourage it. This conclusion is extended by considering risk management concepts which include the benefits of linking design responsibility and product liability. The value of correctly applied engineering design and the risks without it are discussed as is the imperative for precast design to account robustly for the construction phase. Finally, suggestions are offered to improve the engineering and performance merits of currently inadequate strand lifting loop details. (a) For the covering record of this conference, please refer to ITRD abstract no E218284.

  • Corporate Authors:

    Concrete Institute of Australia

    P.O. Box 3157
    Rhodes,   Australia  2138
  • Authors:
    • FLETCHER, G
  • Publication Date: 2009-9

Language

  • English

Media Info

  • Pagination: 6P
  • Monograph Title: Concrete solutions 09: adding value in changing climates: 24th Biennial Conference of the Concrete Institute of Australia: 17-19 September 2009, Sydney

Subject/Index Terms

Filing Info

  • Accession Number: 01152998
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ITRD, ATRI
  • Created Date: Mar 23 2010 9:10AM