Motion Sensors for Scour Monitoring: Laboratory Experiments and Numerical Simulations

Bridge scour monitoring using fixed instrumentation is a good way for the owner to be warned of imminent failure and take appropriate action before exposing the public to undue risk. This paper shows an easy way to predict imminent failure of bridges by installing a motion sensor on the bridge. Two laboratory experiments are described in the paper, and a relationship between the natural frequency of the bridge and the scour depth is presented. Numerical models for the two experiments are established and analyzed. Both the lab data analysis and numerical simulation show that the natural frequency of the simulated bridge-foundation system changes with time. Therefore motion sensor can be used for scour monitoring.

  • Corporate Authors:

    Transportation Research Board

    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Authors:
    • Briaud, Jean-Louis
    • Yao, Congpu
    • Darby, Colin
    • Sharma, Hrishikesh
    • Hurlebaus, Stefan
    • Chang, Kuang-An
    • Hunt P.E., Beatrice Elvira
    • Yu, Ok-Youn
  • Conference:
  • Date: 2010


  • English

Media Info

  • Media Type: DVD
  • Features: Figures; References; Tables;
  • Pagination: 22p
  • Monograph Title: TRB 89th Annual Meeting Compendium of Papers DVD

Subject/Index Terms

Filing Info

  • Accession Number: 01152215
  • Record Type: Publication
  • Report/Paper Numbers: 10-3545
  • Files: TRIS, TRB
  • Created Date: Jan 25 2010 11:48AM