Multi-scale structural health monitoring technologies

Y. L. Xu, B. F. Spencer

Research output: Contribution to journalConference articlepeer-review


This study presents multi-scale structural health monitoring (SHM) technologies for large civil structures. It involves four major tasks: (1) the multi-scale finite element modeling of a large civil structure that can integrate the global structural model equipped with global sensors with the local structural details installed with local sensors; (2) the development of multi-scale model updating method that uses multi-scale updating parameters and objective functions together with the Kriging method; (3) the optimal placement of multi-type sensors that can integrate global and local sensors, minimize the required number of sensors, and increase the accuracy of damage detection via best response reconstruction; and (4) the development of multi-scale damage detection method that can synthesize the measurement data from different sensors with different scales. The accuracy of the proposed technologies is validated by conducting various experimental studies.


  • Damage detection
  • Large civil structures
  • Multi-scale
  • Structural health monitoring

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction


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