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Structural Monitoring and Maintenance
  Volume 1, Number 1, March 2014 , pages 89-110

Iterative damage index method for structural health monitoring
Taesun You, Paolo Gardoni and Stefan Hurlebaus

    Structural Health Monitoring (SHM) is an effective alternative to conventional inspections which are time-consuming and subjective. SHM can detect damage early and reduce maintenance cost and thereby help reduce the likelihood of catastrophic structural events to infrastructure such as bridges. After reviewing the Damage Index Method (DIM), an Iterative Damage Index Method (IDIM) is proposed to improve the accuracy of damage detection. These two damage detection techniques are compared based on damage on two structures, a simply supported beam and a pedestrian bridge. Compared to the traditional damage detection algorithm, the proposed IDIM is shown to be less arbitrary and more accurate.
Key Words
    vibration-based damage identification method; damage index method; damage detection algorithm; structural health monitoring
Taesun You: Texas A&M Transportation Institute, College Station, TX 77843-3135, USA
Paolo Gardoni: Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign,
Urbana, IL61801-2351, USA
Stefan Hurlebaus: Zachry Department of Civil Engineering, Texas A&M University, College Station, TX 77843-3136, USA

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