Rapid Retrofit and Strengthening of Bridge Components
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

For very narrow results

When looking for a specific result

Best used for discovery & interchangable words

Recommended to be used in conjunction with other fields

Dates

to

Document Data
Library
People
Clear All
Clear All

For additional assistance using the Custom Query please check out our Help Page

i

Rapid Retrofit and Strengthening of Bridge Components

Filetype[PDF-6.12 MB]


Select the Download button to view the document
This document is over 5mb in size and cannot be previewed
English
Details You May Also Like

Details:

  • Creators:
  • Corporate Creators:
    University of Kentucky Transportation Center
  • Corporate Contributors:
    Kentucky Transportation Cabinet
  • Subject/TRT Terms:
  • Publication/ Report Number:
    KTC-19-07/SPR13-465-1F
  • DOI:
  • Resource Type:
    Tech Report
  • Geographical Coverage:
  • Corporate Publisher:
    University of Kentucky Transportation Center
  • Abstract:
    Rapid repair of damaged or deteriorated concrete bridge components will prevent the entire bridge from suffering irreversible damage in the future due to gradual spalling of concrete or corrosion of exposed steel. CFRP laminates and fabrics have become popular for repairing and strengthening of concrete girders. A series of CFRP materials — branded CatStrong — specifically designed for the repair and retrofit of bridges was developed at the Kentucky Transportation Center and the University of Kentucky. These materials include the CFRP Rod Panels (CatStrong CRPs), Unidirectional and Triaxial Carbon Fabric (CatStrong UCF and TCF), and Triaxial Carbon Wrap (CatStrong TCW). This study documented the implementation of CFRP materials to rapidly repair/strengthen six bridges in Kentucky. Three of the retrofit projects utilized CatStrong CRPs for strengthening reinforced concrete bridge girders. Because the CRPs have modular construction, they can easily be applied by a by a single worker, eliminating the need for extensive scaffolding/access equipment and a large work force. As such, the construction costs related to panel application is less than those for other retrofit measures. CatStrong TCW, combined with CatStrong TCF, was deployed for the repair and strengthening of deteriorated timber piles. The remaining two projects involved the use of CatStrong UCF and TCF for strengthening cracked prestressed concrete girder ends and strengthening a cracked bridge pier cap. Each bridge retrofit project was carried out by Kentucky Transportation Cabinet bridge maintenance crews. The crews were trained on the use and application of the new material. Design and construction specifications for the CatStrong CRPs were also developed as part of the study. This study will implement these new CFRP materials to rapidly repair/strengthen six selected bridges in Kentucky. Three of the retrofit projects utilized CatStrong CRPs for strengthening Reinforced Concrete (RC) bridge girders. The modular construction of the CRPs allows for easy application by a single worker without the need for extensive scaffolding/access equipment and a large work force. Consequently, application of the panels reduces construction costs when compared with other FRP retrofit measures. The CatStrong TCW, combined with CatStrong TCF, was deployed for the repair and strengthening of deteriorated timber piles. The remaining two projects involved the use of CatStrong UCF and TCF for strengthening cracked Prestressed Concrete (PC) girder ends and strengthening a cracked bridge pier cap. Each bridge retrofit project was carried out by the Kentucky Transportation Cabinet (KYTC) bridge maintenance crew of the respective KYTC district. The crews were trained on the use and application of the new material. Design and Construction Specifications for the CatStrong CRPs were also developed as part of the study.
  • Format:
    PDF
  • Funding:
    SPR 13-465
  • Collection(s):
  • Main Document Checksum:
  • Download URL:
  • File Type:

Supporting Files

  • No Additional Files
More +

You May Also Like

Checkout today's featured content at rosap.ntl.bts.gov