A bridge-monitoring tool based on bridge and vehicle accelerations

David Hester, Arturo González

    Research output: Contribution to journalArticle

    11 Citations (Scopus)
    168 Downloads (Pure)

    Abstract

    Previous research on damage detection based on the response of a structure to a moving load has reported decay in accuracy with increasing load speed. Using a 3D vehicle – bridge interaction model, this paper shows that the area under the filtered acceleration response of the bridge increases with increasing damage, even at highway load speeds. Once a datum reading is established, the area under subsequent readings can be monitored and compared with the baseline reading, if an increase is observed it may indicate the presence of damage. The sensitivity of the proposed approach to road roughness and noise is tested in several damage scenarios. The possibility of identifying damage in the bridge by analysing the acceleration response of the vehicle traversing it is also investigated. While vehicle acceleration is shown to be more sensitive to road roughness and noise and therefore less reliable than direct bridge measurements, damage is successfully identified in favourable scenarios.
    Original languageEnglish
    Pages (from-to)619-637
    JournalStructure and Infrastructure Engineering
    Volume11
    Issue number5
    Early online date01 Apr 2014
    DOIs
    Publication statusPublished - May 2015

    Keywords

    • bridges; damage; structural health monitoring; dynamics; structural modelling; intelligent infrastructure

    ASJC Scopus subject areas

    • Ocean Engineering
    • Mechanical Engineering
    • Building and Construction
    • Safety, Risk, Reliability and Quality
    • Geotechnical Engineering and Engineering Geology
    • Civil and Structural Engineering

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