FLEXURAL STRENGTHENING OF BRIDGE BY USING TENSIONED CARBON FIBER REINFORCED POLYMER PLATE

To investigate the flexural strengthening effects of carbon fiber reinforced polymer (CFRP) plates on existing bridges, a tensile test of CFRP plates and a static loading test of beams were conducted. When the embedment length was over 250mm, the CFRP plate was broken without a slip in anchorage, and the tensile capacity was 257 kN. Sound RC beams, and deteriorated RC beams which had been loaded until yielding of the longitudinal reinforcements, were used as test specimens before strengthening. CFRP plate was tensioned and anchored at the bottom of the beam by posttensioning jacks. The tension forces were 0, 25, and 50% of the tensile strength of the plate. The epoxy resin was used to produce the bond between concrete and CFRP plate. In some beams, intermediate anchoring devices were installed in the shear span to improve the bond. Beams strengthened by the tensioned CFRP plate failed in flexure immediately after the peeling of CFRP plate. The flexural deformability and load bearing capacity of beam were improved largely, in the beams strengthened by using the tensioned CFRP plate and the intermediate anchoring device, no matter how the beam was deteriorated.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0080439454
• Corporate Authors:

  Elsevier

  The Boulevard, Langford Lane
  Kidlington, Oxford  United Kingdom  OX5 1GB
• Authors:
  • Kojima, T
  • Takagi, N
  • Hamada, Y
  • Kobayashi, A
• Conference:
  • FRP Composites in Civil Engineering. Proceedings of the International Conference on FRP Composites in Civil Engineering.
  • Location: Hong Kong, China
  • Date: 2001-12-12 to 2001-12-15
• Publication Date: 2001

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 1077-84

Subject/Index Terms

• TRT Terms: Anchors (Structural connectors); Beams; Bridge engineering; Carbon fibers; Composite materials; Conferences; Fiber reinforced plastics; Flexural strength; Material reinforcement; Structural engineering; Structural plates; Structural strengthening; Structural supports; Tensioning
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00921078
• Record Type: Publication
• ISBN: 0080439454
• Report/Paper Numbers: Volume 2
• Files: TRIS
• Created Date: Mar 25 2002 12:00AM