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.

• Record URL:
  http://www.wistrans.org/cfire/research/projects/09-22/

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

• TRT Terms: Concrete; Cracking; Fabrication; Field tests; Girders; Pretensioning; Structural analysis
• Uncontrolled Terms: Bulbtee girders
• Geographic Terms: Wyoming
• Subject Areas: Bridges and other structures; Construction; Highways;

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