Monitoring stress changes in a concrete bridge with coda wave interferometry.

  title={Monitoring stress changes in a concrete bridge with coda wave interferometry.},
  author={Simon C. Stähler and Christoph Sens‐Sch{\"o}nfelder and Ernst Niederleithinger},
  journal={The Journal of the Acoustical Society of America},
  volume={129 4},
Coda wave interferometry is a recent analysis method now widely used in seismology. It uses the increased sensitivity of multiply scattered elastic waves with long travel-times for monitoring weak changes in a medium. While its application for structural monitoring has been shown to work under laboratory conditions, the usability on a real structure with known material changes had yet to be proven. This article presents experiments on a concrete bridge during construction. The results show that… 

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