Theoretical investigation of the use of a moving vehicle to identify bridge dynamic parameters

Research output: Chapter in Book or Conference Publication/ProceedingConference Publicationpeer-review

Abstract

Pavements and bridges are subject to a continuous degradation due to traffic aggressiveness, ageing and environmental factors. A rational transport policy requires the monitoring of this transport infrastructure in order to provide adequate maintenance and guarantee the required levels of transport service and safety. This paper investigates the use of an instrumented vehicle fitted with accelerometers on its axles to monitor the dynamics of bridges. A simplified quarter car-bridge interaction model is used in theoretical simulations and the natural frequency of the bridge is extracted from the spectra of the vehicle accelerations. The accuracy is better at lower speeds and for smooth road profiles. The structural damping of the bridge was also monitored for smooth and rough road profiles. The magnitude of peaks in the power spectral density of the vehicle accelerations decreased with increasing bridge damping and this decrease was easier to detect the smoother the road profile.

Original languageEnglish
Title of host publication6th International Conference on Condition Monitoring and Machinery Failure Prevention Technologies 2009
PublisherBritish Institute of Non-Destructive Testing
Pages101-112
Number of pages12
ISBN (Print)9781618390097
Publication statusPublished - 2009
Externally publishedYes
Event6th International Conference on Condition Monitoring and Machinery Failure Prevention Technologies 2009 - Dublin, Ireland
Duration: 23 Jun 200925 Jun 2009

Publication series

Name6th International Conference on Condition Monitoring and Machinery Failure Prevention Technologies 2009
Volume1

Conference

Conference6th International Conference on Condition Monitoring and Machinery Failure Prevention Technologies 2009
Country/TerritoryIreland
CityDublin
Period23/06/0925/06/09

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 9 - Industry, Innovation, and Infrastructure
    SDG 9 Industry, Innovation, and Infrastructure
  2. SDG 11 - Sustainable Cities and Communities
    SDG 11 Sustainable Cities and Communities

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