Field validation of a statistical-based bridge damage-detection algorithm

Brent Phares, Ping Lu, Terry Wipf, Lowell Greimann, Junwon Seo

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

This paper describes a field validation of a second-generation, statistical-based damage-detection algorithm and its ability to detect actual damage in bridges accurately. The algorithm had been theoretically validated previously. For the field tests, in lieu of introducing damage to a public bridge, two sacrificial specimens that simulated damage-sensitive locations of the bridge were mounted on the bridge, and different types and levels of damage in the form of cracks and simulated corrosion were induced in the specimens. Using strain data collected from sensors on the sacrificial specimens and on the bridge, the algorithm correctly identified the damage. Analysis of data from sensors far away from the damaged area revealed a relatively high false-positive rate.

Original languageEnglish
Pages (from-to)1227-1238
Number of pages12
JournalJournal of Bridge Engineering
Volume18
Issue number11
DOIs
StatePublished - Nov 2013

Keywords

  • Bridges
  • Damage
  • Field tests
  • Girder
  • Structural health monitoring
  • Validation

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

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