Smart Structures and Systems

  • 제18권1호
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  • Pages.17-29
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  • 2016
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  • 1738-1584(pISSN)
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  • 1738-1991(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

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Human induced vibration vs. cable-stay footbridge deterioration

  • Casciati, S. (Department of Civil Engineering and Architecture, University of Catania)
  • 투고 : 2015.09.26
  • 심사 : 2016.05.26
  • 발행 : 2016.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, the possibility of using human induced loading (HIL) to detect a decrease of tension in the cable-stays of an existing footbridge is investigated. First, a reliable finite elements model of an existing footbridge is developed by calibration with experimental data. Next, estimates of the tension in the cables are derived and their dependency on the modal features of the deck is investigated. The modelling of the HIL is briefly discussed and used to perform the nonlinear, large strain, dynamic finite elements analyses. The results of these analyses are assessed with focus on characterizing the time histories of the tension in the cables under pedestrian crossing and their effects on the deck response for different initial conditions. Finally, the control perspective is introduced in view of further research.

키워드

참고문헌

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  2. Natural Frequencies of a Very Large–Sag Extensible Cable vol.144, pp.2, 2018, https://doi.org/10.1061/(ASCE)EM.1943-7889.0001409
  3. Validation range for KF data fusion devices 2017, https://doi.org/10.1007/s00707-017-1994-1
  4. Motion-based design of TMD for vibrating footbridges under uncertainty conditions vol.21, pp.6, 2016, https://doi.org/10.12989/sss.2018.21.6.727
  5. Velocity feedback for controlling vertical vibrations of pedestrian-bridge crossing. Practical guidelines vol.22, pp.1, 2016, https://doi.org/10.12989/sss.2018.22.1.095
  6. Optimal Design and Application of a Multiple Tuned Mass Damper System for an In-Service Footbridge vol.11, pp.10, 2016, https://doi.org/10.3390/su11102801
  7. Exact Dynamic Analysis of Shallow Sagged Cable System - Theory and Experimental Verification vol.19, pp.12, 2016, https://doi.org/10.1142/s0219455419501530
  8. Full-Scale Experimental Study on Vibration Control of Bridge Suspenders Using the Stockbridge Damper vol.25, pp.8, 2016, https://doi.org/10.1061/(asce)be.1943-5592.0001591