PROBABILISTIC ASSESSMENT OF THE SUBSURFACE CONDITION OF BRIDGE DECKS USING GPR

A probabilistic methodology for assessing the condition of bridge decks using ground penetrating radar (GPR) is presented. GPR is a subsurface sensing and imaging technique that provides quantitative information about features inside deck materials. Although GPR is already in use by many transportation agencies, the need still exists for a definitive determination of its accuracy. This study considers important uncertainties and probabilistic modeling of 2 measures: rebar reflection amplitude and wave traveling time. The developed methodology is illustrated by a case study that uses real-world data and is designed to establish conformity of GPR measures to the "ground truth." Key findings and conclusions are offered and discussed.

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 317-327

Subject/Index Terms

Filing Info

  • Accession Number: 00965797
  • Record Type: Publication
  • ISBN: 9058096068
  • Files: TRIS
  • Created Date: Nov 12 2003 12:00AM