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Radar detection of pedestrian-induced vibrations on Michelangelo's David

Author

Listed:
  • Massimiliano Pieraccini
  • Michele Betti
  • Davide Forcellini
  • Devis Dei
  • Federico Papi
  • Gianni Bartoli
  • Luca Facchini
  • Riccardo Corazzi
  • Vladimir Cerisano Kovacevic

Abstract

This paper summarizes the results of a two-day dynamic monitoring of Michelangelo's David subject to environmental loads (city traffic and pedestrian loading induced by tourists visiting the Accademia Gallery). The monitoring was carried out by a no-contact technique using an interferometric radar, whose effectiveness in measuring the resonant frequencies of structures and historic monuments has proved over the last years through numerous monitoring activities. Owing to the dynamic behavior of the measurement system (radar and tripod), an accelerometer has been installed on the radar head to filter out the movement component of the measuring instrument from the measurement of the David's displacement. Measurements were carried out in the presence and absence of visitors, to assess their influence on the dynamic behavior of the statue. A numerical model of the statue was employed to evaluate the experimental results.

Suggested Citation

  • Massimiliano Pieraccini & Michele Betti & Davide Forcellini & Devis Dei & Federico Papi & Gianni Bartoli & Luca Facchini & Riccardo Corazzi & Vladimir Cerisano Kovacevic, 2017. "Radar detection of pedestrian-induced vibrations on Michelangelo's David," PLOS ONE, Public Library of Science, vol. 12(4), pages 1-20, April.
    • Handle: RePEc:plo:pone00:0174480
    DOI: 10.1371/journal.pone.0174480
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