Bonded and mechanically fastened FRP strengthening systems: A case study

Alexis Lopez, Andrea Rizzo, Nestore Galati, Antonio Nanni

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

5 Scopus citations

Abstract

This paper describes a case study addressing analysis, design, installation, load rating, load testing, numerical verification and monitoring of the strengthening of an old deficient bridge under a field validation research project. The strengthening was performed by means of two composite technologies: the common manual lay-up CFRP system and a mechanically fastened FRP (MF-FRP) system. The later consisted of pre-cured FRP laminates having high transverse bearing strength (i.e., bidirectional fibers) attached to the structural element by means of wedge anchors. Although considered a temporary solution, the technique is attractive because it requires minimum surface preparation. The bridge will be monitored for 5 years to evaluate the long-term performance of the techniques. In this sense, load tests were performed to evaluate the bridge structural behavior prior to and after the strengthening, showing that the rehabilitation performed as predicted by numerical analysis and therefore created the possibility to remove the bridge load posting.

Original languageEnglish (US)
Title of host publication7th International Symposium on Fiber-Reinforced Polymer (FRP) Reinforcement for Concrete Structures
EditorsCarol K. Shield, John P. Busel, Stephanie L. Walkup, Doug D. Gremel
PublisherAmerican Concrete Institute
Pages1217-1234
Number of pages18
ISBN (Electronic)9780870311895
StatePublished - Oct 1 2005
Externally publishedYes
Event7th International Symposium on Fiber- Reinforced Polymer Reinforcement for Reinforced Concrete Structures, FRPRCS 2005 - Kansas City, United States
Duration: Nov 6 2005Nov 10 2005

Publication series

NameAmerican Concrete Institute, ACI Special Publication
VolumeSP-230
ISSN (Print)0193-2527

Conference

Conference7th International Symposium on Fiber- Reinforced Polymer Reinforcement for Reinforced Concrete Structures, FRPRCS 2005
Country/TerritoryUnited States
CityKansas City
Period11/6/0511/10/05

Keywords

  • Bridge
  • Load rating
  • Load testing
  • Manual lay-up CFRP laminates
  • Mechanically fastened CFRP
  • Strengthening

ASJC Scopus subject areas

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

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