Shear strength of reinforced concrete girders with carbon fiber-reinforced polymer: Experimental results

Fiber-reinforced polymers (FRPs) are increasingly being used to repair and strengthen conventionally reinforced concrete bridge members. Much of the existing performance data for members repaired with FRP have been developed from tests of reduced-scale specimens. This study reports experimental results for eight very large reinforced concrete deck girders strengthened with surface-bonded carbon FRP (CFRP) for shear. The girders were designed to refect realistic mid-twentieth century vintage proportions, materials, and details. Test results show that the CFRP provided additional shear strength and deformation capacity, even with large debonded regions prior to failure. The materials also increased the member stiffness and failures were controlled by debonding of the U-wrapped CFRP strips along the edges of the deck-stem intersection.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846957
• Supplemental Notes:
  • Abstract reprinted with permission from the American Concrete Institute
• Authors:
  • Higgins, C
  • Williams, G T
  • Mitchell, M M
  • Dawson, M R
  • Howell, D
• Publication Date: 2012-11

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 805-814
• Serial:
  • ACI Structural Journal
  • Volume: 109
  • Issue Number: 6
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-3241
  • Serial URL: http://www.concrete.org/PUBS/JOURNALS/SJHOME.ASP

Subject/Index Terms

• TRT Terms: Bridge design; Carbon fibers; Fiber reinforced polymers; Girders; Reinforced concrete bridges; Shear strength; Structural strengthening
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01454323
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 19 2012 9:42AM