Strengthening of a bridge using two FRP technologies

P. Casadei, N. Galati, R. Parretti, A. Nanni

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

5 Scopus citations

Abstract

This paper reports on the use of externally bonded fiber reinforced polymers (FRP) laminates and Near Surface Mounted FRP bars for the flexural strengthening of a concrete bridge. The bridge selected for this project is a three-span simply supported reinforced concrete slab with no transverse steel reinforcement, load posted and located on Martin Spring Outer Road in Phelps County, MO. The original construction combined with the presence of very rigid parapets caused the formation of a wide longitudinal crack which resulted in the slab to behave as two separate elements. In order to clarify the behavior of the structure, load tests were performed and a finite element method (FEM) analysis undertaken. The FRP strengthening was designed to avoid further cracking and such that the transverse flexural capacity be higher than the cracking moment. Both FRP techniques were easily implemented and showed satisfactory performance.

Original languageEnglish (US)
Title of host publicationField Applications of FRP Reinforcement
Subtitle of host publicationCase Studies
EditorsSami Rizkalla, Antonio Nanni
PublisherAmerican Concrete Institute
Pages219-238
Number of pages20
ISBN (Electronic)9780870311215
StatePublished - Aug 1 2003
Externally publishedYes
EventField Applications of FRP Reinforcement: Case Studies at the ACI Fall 2003 Convention - Boston, United States
Duration: Sep 27 2003Oct 1 2003

Publication series

NameAmerican Concrete Institute, ACI Special Publication
VolumeSP-215
ISSN (Print)0193-2527

Conference

ConferenceField Applications of FRP Reinforcement: Case Studies at the ACI Fall 2003 Convention
Country/TerritoryUnited States
CityBoston
Period9/27/0310/1/03

Keywords

  • Bridges
  • Carbon fibers
  • Fiber reinforced polymer (FRP)
  • Finite element method (FEM)
  • Load testing
  • Reinforced concrete
  • Strengthening

ASJC Scopus subject areas

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

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