Strengthening of bridge G270 with externally bonded carbon fiber reinforced polymer reinforcement

R. Mayo, A. Nanni, W. Gold, M. Barker

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Scopus citations

Abstract

This paper presents the results of a pilot study to apply externally bonded CFRP sheets to strengthen a simple span reinforced concrete solid slab bridge. The objective was to remove the current load posting. This bridge is a load posted structure on a heavy truck route. Strengthening with CFRP sheets was accomplished in three days without traffic interruption. Preparation consisted of light sandblasting and no concrete repair. The University of Missouri at Rolla conducted the pilot study for the Missouri Department of Transportation. The testing procedure included the construction of two test beams, to simulate bridge deck performance with and without strengthening. Laboratory setup, instrumentation and test results of two full-scale test beams are presented. Field load tests of the bridge were performed by the University of Missouri at Columbia to verify the increase in flexural strength achieved with the application of externally bonded CFRP. The method used to instrument and field load test the bridge along with the subsequence load-deflection characteristics is presented. Comparisons are made between the analytical model, laboratory beam specimens strengthened with CFRP, and in situ field tests of the actual bridge before and after strengthening.

Original languageEnglish (US)
Title of host publication4th International Symposium - Fiber Reinforced Polymer Reinforcement for Reinforced Concrete Structures
EditorsCharles W. Dolan, Sami H. Rizkalla, Antonio Nanni
PublisherAmerican Concrete Institute
Pages429-440
Number of pages12
ISBN (Electronic)9780870316876
StatePublished - Aug 1 1999
Externally publishedYes
Event4th International Symposium on Fiber Reinforced Polymer Reinforcement for Reinforced Concrete Structures - Baltimore, United States
Duration: Oct 31 1999Nov 5 1999

Publication series

NameAmerican Concrete Institute, ACI Special Publication
VolumeSP-188
ISSN (Print)0193-2527

Conference

Conference4th International Symposium on Fiber Reinforced Polymer Reinforcement for Reinforced Concrete Structures
Country/TerritoryUnited States
CityBaltimore
Period10/31/9911/5/99

Keywords

  • Bridge strengthening
  • Carbon fiber
  • Fiber reinforced polymer
  • Load rating
  • Reinforced concrete

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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