Implementation and Field Evaluation of Pretensioned Concrete Girder End Crack Control Methods

Wisconsin bulb tee girders and girders in other states experience characteristic cracking at girder ends during de-tensioning and during lifting from the forms. These cracks pose durability concerns as corrosive agents can reach steel reinforcement or strands through these cracks, increasing long term maintenance costs, and potentially compromising structural capacity. This proposal outlines an approach for deploying selected crack control methods into Wisconsin practice. The success of crack control methods will be evaluated by measuring strains and crack sizes in girders built with control methods and by visual observation of girder ends for cracks during fabrication and erection. Phase II work is critical to implement a solution for the end cracking.

Language

  • English

Project

  • Status: Completed
  • Funding: $75000.00
  • Contract Numbers:

    DTRT12-G-UTC19

  • Sponsor Organizations:

    Research and Innovative Technology Administration

    University Transportation Centers Program
    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    Wisconsin Department of Transportation

    4802 Sheboygan Avenue
    Madison, WI  United States  53707
  • Performing Organizations:

    University of Wisconsin, Madison

    Department of Civil and Environmental Engineering
    1415 Engineering Drive
    Madison, WI  United States  53706
  • Principal Investigators:

    Oliva, Mike

  • Start Date: 20140901
  • Expected Completion Date: 0
  • Actual Completion Date: 20160531
  • Source Data: RiP Project 38294

Subject/Index Terms

Filing Info

  • Accession Number: 01547312
  • Record Type: Research project
  • Source Agency: National Center for Freight and Infrastructure Research and Education (CFIRE)
  • Contract Numbers: DTRT12-G-UTC19
  • Files: UTC, RiP
  • Created Date: Dec 6 2014 1:00AM