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  5. Monitoring of scour critical bridges using changes in the natural frequency of vibration of foundation piles - A field investigation
 
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Monitoring of scour critical bridges using changes in the natural frequency of vibration of foundation piles - A field investigation

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Download UCDRMS_LukePrendergast_TRA2014.pdf277.36 KB
Author(s)
Prendergast, Luke J. 
Gavin, Kenneth 
Uri
http://hdl.handle.net/10197/7192
Date Issued
17 April 2014
Date Available
09T10:49:12Z November 2015
Abstract
The highly publicised failure of the Malahide Viaduct Railway Bridge in Ireland in 2009 was attributed to erosion of the supporting soils, commonly referred to as foundation scour. This is a widespread geotechnicalstructural problem that has been identified as the main cause of failure of bridges in the United States. Monitoring scour is of significant importance to ensure the continued safe operation of the ageing bridge asset network. Most of the current monitoring regimes rely on expensive underwater instrumentation that is often subject to damage during times of flooding, when scour risk is at its highest. In this paper, a novel scour monitoring approach based on dynamic measurement techniques is described. The investigation involves the mounting of accelerometers on the structure of interest, which may be used as a non-intrusive monitoring scheme above the waterline. A significant advantage of this method over traditional scour monitoring approaches is that the structure itself is used to monitor the scour damage.
Sponsorship
European Commission - European Regional Development Fund
European Commission - Seventh Framework Programme (FP7)
Higher Education Authority
Type of Material
Conference Publication
Keywords
  • Bridge scour

  • Pile

  • Acceleration

  • Frequency

  • Structural health mon...

Web versions
http://www.traconference.eu/
http://ec.europa.eu/programmes/horizon2020/en/news/transport-research-arena-2014-innovate-mobility-mobilise-innovation-paris-1417-april-2014
Language
English
Status of Item
Peer reviewed
Description
Transport Research Arena, Paris, France, 14-17 April, 2014
This item is made available under a Creative Commons License
https://creativecommons.org/licenses/by-nc-nd/3.0/ie/
Owning collection
Civil Engineering Research Collection
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