FATIGUE LIFE OF DAMAGED BRIDGE DECK PANELS STRENGTHENED WITH CARBON FIBER SHEETS

This article presents the results of an experimental investigation that was conducted to evaluate bridge decks strengthened with carbon fiber sheets (CFS) and subjected to repeated load applications. The authors also explored the suitability of a simplified cumulative damage theory for reinforced concrete structural members as a tool to decide on strengthening strategies. To simulate fatigue damage to the bridge deck slabs, cyclic loading was applied to test panels, which were then reinforced with CFS using two different methods. The strengthened panels were then tested again under cyclic loads. The authors note that the observed response to fatigue loads differed markedly from the results of static tests. Isotropic reinforcement was found to be more effective than unidirectional strengthening. The proposed simple damage theory can be used to estimate the residual life of bridge decks with unknown damage, even if these are strengthened with CFS. The authors caution, however, that the proposed model is based on a small number of tests and is therefore limited to the range of parameters governing those tests.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846957
• Supplemental Notes:
  • For this issue of the ACI Structural Journal, the date is January/February 2005.
• Corporate Authors:

  American Concrete Institute (ACI)

  38800 Country Club Drive
  Farmington Hills, MI  United States  48331
• Authors:
  • Oh, Heekuck
  • Sim, J
  • Meyer, C
• Publication Date: 2005-1

Language

• English

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 85-92
• Serial:
  • ACI Structural Journal
  • Volume: 102
  • Issue Number: 1
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-3241
  • Serial URL: http://www.concrete.org/PUBS/JOURNALS/SJHOME.ASP

Subject/Index Terms

• TRT Terms: Bridge decks; Carbon fibers; Cost estimating; Fatigue (Mechanics); Isotropic materials; Mathematical models; Rehabilitation; Reinforced concrete bridges; Repeated loads; Structural strengthening
• Subject Areas: Bridges and other structures; Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00985151
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 31 2005 12:00AM