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Bridge health monitoring system based on vibration measurements

  • Evaggelos Ntotsios
  • Costas PapadimitriouEmail author
  • Panagiotis Panetsos
  • Grigorios Karaiskos
  • Kyriakos Perros
  • Philip C. Perdikaris
Original Research Paper

Abstract

A bridge health monitoring system is presented based on vibration measurements collected from a network of acceleration sensors. Sophisticated structural identification methods, combining information from the sensor network with the theoretical information built into a finite element model for simulating bridge behavior, are incorporated into the system in order to monitor structural condition, track structural changes and identify the location, type and extent of damage. This work starts with a brief overview of the modal and model identification algorithms and software incorporated into the monitoring system and then presents details on a Bayesian inference framework for the identification of the location and the severity of damage using measured modal characteristics. The methodology for damage detection combines the information contained in a set of measurement modal data with the information provided by a family of competitive, parameterized, finite element model classes simulating plausible damage scenarios in the structure. The effectiveness of the damage detection algorithm is demonstrated and validated using simulated modal data from an instrumented R/C bridge of the Egnatia Odos motorway, as well as using experimental vibration data from a laboratory small-scaled bridge section.

Keywords

Structural health monitoring Model updating Bayesian inference Structural identification Damage detection 

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Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • Evaggelos Ntotsios
    • 1
  • Costas Papadimitriou
    • 1
    Email author
  • Panagiotis Panetsos
    • 2
  • Grigorios Karaiskos
    • 1
  • Kyriakos Perros
    • 1
  • Philip C. Perdikaris
    • 3
  1. 1.Department of Mechanical and Industrial EngineeringUniversity of ThessalyVolosGreece
  2. 2.Capital Maintenance DepartmentEgnatia Odos S.A.ThermiGreece
  3. 3.Department of Civil EngineeringUniversity of ThessalyVolosGreece

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