Repair Methods for Corrosion-Damaged Prestressed Concrete Girders

Several bridges with prestressed concrete I-girders or adjacent box-beams have been identified in Virginia as having significant deterioration, including spalling, delamination, and prestressing strands with section loss. A number of beams in various stages of deterioration have become available for investigation. Additionally, a VDOT contractor has conducted mock repairs using flexible fillers in external post-tensioning or carbon fiber-reinforced polymer wraps in preparation for strengthening similar corrosion-damaged members in the Hampton Roads Bridge Tunnel approaches. This research will study the efficacy of the repairs through large-scale destructive tests on 12 beams, focusing on flexural strength, shear strength, and ductility of the repaired members. Additionally, the composite behavior between the repairs and the original member will be examined. The final report will detail best practices for conducting the repairs as well as procedures for evaluating the capacity of the repaired structures.

Language

• English

Project

• Status: Active
• Funding: $640556
• Contract Numbers:

  114590

• Sponsor Organizations:

  Virginia Transportation Research Council

  530 Edgemont Road
  Charlottesville, VA  United States  22903
• Managing Organizations:

  Virginia Transportation Research Council

  530 Edgemont Road
  Charlottesville, VA  United States  22903
• Project Managers:

  Kassner, Bernie

• Performing Organizations:

  Virginia Polytechnic Institute and State University, Blacksburg

  208 Patton Hall
  Blacksburg, VA  United States  24061
• Principal Investigators:

  Roberts-Wollmann, Carin

  Hebdon, Matthew

  Koutromanos, Ioannis

• Start Date: 20181119
• Expected Completion Date: 20220731
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Beams; Best practices; Bridges; Corrosion; Ductility; Flexural strength; Girders; Prestressed concrete; Repairing; Shear strength
• Geographic Terms: Virginia
• Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation; Materials;

Filing Info

• Accession Number: 01685187
• Record Type: Research project
• Source Agency: Virginia Department of Transportation
• Contract Numbers: 114590
• Files: RIP, STATEDOT
• Created Date: Nov 9 2018 9:30AM