Current ICT Project
Investigators:
  Prof. Dan Kuchma (Primary), Christopher Hart
Project Title:
  Development of Standard for Lifting Loops in Shallow Precast Deck Beams
Start Date: 7/1/2005
End Date: 12/31/2008
Summary of Project:
  Lifting loops for bridge decks typically consist of one or more 7-wire prestressing strands that have been bent into loops. Current national codes and handbooks do not provide guidance for the design of lifting looks for shallow members and consequently individual states and producers are using a variety of different methods. This has led to problems in the field including failure of loops and this poses a safety hazard. To address this concern, current practices are being reviewed and a range of lifting loop arrangements is being tested from which a standard practice for the State of Illinois will be recommended.
Objective of Project:
  The objective of the project is to develop a standard for the fabrication, embedment, anchorage, and use of lifting loops in precast deck beams, with an emphasis on shallow precast members that are 11 and 17 inch deep. If applicable, this State standard will be promoted for adoption as a national standard.
Expected Outcome:
  A standard for the fabrication, embedment, anchorage, and use of lifting loops in shallow members.
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Last Updated: 11/18/2009