Anchorage Zone Reinforcement of Post-Tensioned Box Girder Bridges

Adequate anchorage zone performance is critical to the proper performance of post-tensioned bridges. Sufficient reinforcement is important to distribute the forces in the anchorage zone region. The last substantial experimental research on post-tensioned concrete anchorage zones was the National Cooperative Highway Research Program (NCHRP) 10-29 in 1994. California Department of Transportation (Caltrans) has implemented a design procedure in Memo to Designers 11-25 for anchorage zone design. However, experience on recent construction projects has shown that current detailing methods can lead to highly congested reinforcement in anchorage zones. The objective of this project is to develop and validate an efficient, yet safe design procedure for anchorage zones. The proposal is a combination of analytical work that will focus on the 3-dimensional (3D) spreading that occurs in box girder bridge anchorage zones and experimental work. The experimental work will include both large-scale tests of the anchorage zone in the laboratory and four field instrumentation sites.

  • Supplemental Notes:
    • Contract to a Performing Organization has not yet been awarded.


  • English


  • Status: Active
  • Sponsor Organizations:

    California Department of Transportation

    Sacramento, CA  United States  95819
  • Project Managers:

    Lee, Peter

  • Performing Organizations:

    University of Nevada

  • Principal Investigators:

    Sander, David

  • Start Date: 20140101
  • Expected Completion Date: 20171101
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01620028
  • Record Type: Research project
  • Source Agency: California Department of Transportation
  • Files: RIP, STATEDOT
  • Created Date: Dec 28 2016 11:39AM