Applicability and limitations of impact echo in bridge deck condition monitoring

Parisa Shokouhi, Nenad Gucunski, Ali Maher

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

Abstract

A very common problem in bridge decks is corrosion induced delamination. Among a number of techniques used in the bridge deck condition assessment and monitoring, impact echo is the only technique that directly detects presence and position of a delamination. Applicability and limitations of impact echo (IE) in bridge deck condition monitoring, with respect to delaminations, is examined through an extensive numerical study using finite elements. A parametric study addresses effects of the following parameters on the results of the IE test: size, depth and location of a delamination, relative to the position of the impact source and receivers. Based on the numerical results, a number of limitations in applicability of IE in detection of delaminations are pointed out. A set of guidelines for impact echo evaluation of bridge decks is provided.

Original languageEnglish (US)
Title of host publication19th Symposium on the Application of Geophysics to Engineering and Environmental Problems, SAGEEP 2006
Subtitle of host publicationGeophysical Applications for Environmental and Engineering Hazzards - Advances and Constraints
PublisherEnvironmental and Engineering Geophysical Society (EEGS)
Pages385-401
Number of pages17
ISBN (Print)9781622760657
DOIs
StatePublished - Jan 1 2006
Event19th Symposium on the Application of Geophysics to Engineering and Environmental Problems: Geophysical Applications for Environmental and Engineering Hazzards - Advances and Constraints, SAGEEP 2006 - Seattle, WA, United States
Duration: Apr 2 2006Apr 6 2006

Publication series

Name19th Symposium on the Application of Geophysics to Engineering and Environmental Problems, SAGEEP 2006: Geophysical Applications for Environmental and Engineering Hazzards - Advances and Constraints
Volume1

Other

Other19th Symposium on the Application of Geophysics to Engineering and Environmental Problems: Geophysical Applications for Environmental and Engineering Hazzards - Advances and Constraints, SAGEEP 2006
CountryUnited States
CitySeattle, WA
Period4/2/064/6/06

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Environmental Engineering

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