Repair of I-65 Expressway Bridges Using Carbon Fiber Reinforced Polymer (CFRP) Composites

This report documents the repair of five locations along the I-65 Expressway in Jefferson County, Kentucky. The repair involved: (1) the precast prestressed concrete (PC) girder spans between Jacob Street and Gray Street, (2) the reinforced concrete bearing pads of Bridge Pier 4 at the intersection of Jefferson Street and Preston Street, (3) the reinforced concrete bearing pads of Bridge Pier 6 near the intersection of Main Street and Hancock Street, (4) the precast prestressed concrete girder spans between Chestnut Street and Gray Street and (5) the reinforced concrete pier column on East Muhammad Ali Boulevard. The precast prestressed concrete girders were wrapped with carbon fiber reinforced polymer (CFRP) fabrics at the cracked locations to prevent or limit excessive translations in both vertical and horizontal directions. Two of the prestressed concrete girders were instrumented with linear variable displacement transducers (LVDTs) to gauge the effectiveness of the repair before and after retrofit. The wrapping appears to have curtailed the relative movements in the horizontal direction as they are more stabilized and less volatile than before the repair. However, the relative movements of the vertical direction were still apparent. The bearing pads of Bridge Piers 4 and 6, as well as the pier column on E. Muhammad Ali Boulevard, have been repaired and wrapped with CFRP fabric to increase their capacity. The bearing pads of Bridge Pier 6 presented a unique challenge as the pads were irregularly shaped. 'Reshaping' of the pads was performed so that the wrapping would be effective.

• Record URL:
  https://doi.org/10.13023/KTC.RR.2013.16
• 
• Corporate Authors:

  University of Kentucky, Lexington

  Kentucky Transportation Center
  College of Engineering, 176 Raymond Building
  Lexington, KY  United States  40506-0281

  Kentucky Transportation Cabinet

  200 Mero Street
  Frankfort, KY  United States  40622

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Choo, Ching Chiaw
  • Peiris, Abheetha
  • Harik, Issam E
• Publication Date: 2013-10

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Appendices; Figures; Maps; Photos; References; Tables;
• Pagination: 113p

Subject/Index Terms

• TRT Terms: Bridge bearing pads; Bridge piers; Carbon fibers; Fiber reinforced polymers; Girder bridges; Prestressed concrete bridges; Retrofitting
• Geographic Terms: Kentucky
• Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation; I61: Equipment and Maintenance Methods;

Filing Info

• Accession Number: 01496801
• Record Type: Publication
• Report/Paper Numbers: KTC-13-16/FRT126-03-1F
• Contract Numbers: FRT126
• Files: TRIS, ATRI, USDOT, STATEDOT
• Created Date: Oct 28 2013 9:47AM