Details
| Original language | English |
|---|---|
| Title of host publication | European Workshop on Structural Health Monitoring, EWSHM 2022, Volume 1 |
| Editors | Piervincenzo Rizzo, Alberto Milazzo |
| Publisher | Springer Science and Business Media Deutschland GmbH |
| Pages | 280-289 |
| Number of pages | 10 |
| ISBN (print) | 9783031072536 |
| Publication status | Published - 2023 |
| Externally published | Yes |
| Event | 10th European Workshop on Structural Health Monitoring, EWSHM 2022 - Palermo, Italy Duration: 4 Jul 2022 → 7 Jul 2022 |
Publication series
| Name | Lecture Notes in Civil Engineering |
|---|---|
| Volume | 253 LNCE |
| ISSN (Print) | 2366-2557 |
| ISSN (electronic) | 2366-2565 |
Abstract
In this case study the dynamic response of the Wilford suspension bridge is measure using computer vision-based measurement system. The footbridge is subjected to forced excitations, students walking over it, jumping at certain part of it. A modified GoPro action camera with zoom lens is placed approximately 70 m away from the bridge and focused to record videos of multiple targets (hanger to beam connections). Template matching technique is used for the estimation of pixel motions of the targets. Accurate target displacements are derived. They are then used to obtain vibration frequencies and draw the mode shape of the first vertical vibration mode. It is concluded that, although vibration frequencies corresponding to higher vibration modes can be measured, finding the vibration mode shape is difficult with the measurement resolution of 1/10 pixels used in this study.
Keywords
- Distributed response measurement, Dynamic response, Forced excitations, Suspension bridge, Vision-based measurement
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
Cite this
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European Workshop on Structural Health Monitoring, EWSHM 2022, Volume 1. ed. / Piervincenzo Rizzo; Alberto Milazzo. Springer Science and Business Media Deutschland GmbH, 2023. p. 280-289 (Lecture Notes in Civil Engineering; Vol. 253 LNCE).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Measuring Dynamic Response of the Wilford Suspension Bridge with a Vision-Based Measurement System
T2 - 10th European Workshop on Structural Health Monitoring, EWSHM 2022
AU - Kromanis, Rolands
AU - Elias, Said
N1 - Funding information: Acknowledgements. The financial support from Sustainable Futures, Nottingham Trent University, for the equipment used in monitoring the Wilford Suspension Bridge is gratefully acknowledged. The authors are also thankful to Dr Panos Psimoulis, Mr Sean Ince and Dr Lukasz Bonen-berg from Nottingham Geospatial Institute of the University of Nottingham who organized the Wilford suspension bridge monitoring. The financial support from Sustainable Futures, Nottingham Trent University, for the equipment used in monitoring the Wilford Suspension Bridge is gratefully acknowledged. The authors are also thankful to Dr Panos Psimoulis, Mr Sean Ince and Dr Lukasz Bonen-berg from Nottingham Geospatial Institute of the University of Nottingham who organized the Wilford suspension bridge monitoring.
PY - 2023
Y1 - 2023
N2 - In this case study the dynamic response of the Wilford suspension bridge is measure using computer vision-based measurement system. The footbridge is subjected to forced excitations, students walking over it, jumping at certain part of it. A modified GoPro action camera with zoom lens is placed approximately 70 m away from the bridge and focused to record videos of multiple targets (hanger to beam connections). Template matching technique is used for the estimation of pixel motions of the targets. Accurate target displacements are derived. They are then used to obtain vibration frequencies and draw the mode shape of the first vertical vibration mode. It is concluded that, although vibration frequencies corresponding to higher vibration modes can be measured, finding the vibration mode shape is difficult with the measurement resolution of 1/10 pixels used in this study.
AB - In this case study the dynamic response of the Wilford suspension bridge is measure using computer vision-based measurement system. The footbridge is subjected to forced excitations, students walking over it, jumping at certain part of it. A modified GoPro action camera with zoom lens is placed approximately 70 m away from the bridge and focused to record videos of multiple targets (hanger to beam connections). Template matching technique is used for the estimation of pixel motions of the targets. Accurate target displacements are derived. They are then used to obtain vibration frequencies and draw the mode shape of the first vertical vibration mode. It is concluded that, although vibration frequencies corresponding to higher vibration modes can be measured, finding the vibration mode shape is difficult with the measurement resolution of 1/10 pixels used in this study.
KW - Distributed response measurement
KW - Dynamic response
KW - Forced excitations
KW - Suspension bridge
KW - Vision-based measurement
UR - http://www.scopus.com/inward/record.url?scp=85134348263&partnerID=8YFLogxK
U2 - 10.1007/978-3-031-07254-3_28
DO - 10.1007/978-3-031-07254-3_28
M3 - Conference contribution
AN - SCOPUS:85134348263
SN - 9783031072536
T3 - Lecture Notes in Civil Engineering
SP - 280
EP - 289
BT - European Workshop on Structural Health Monitoring, EWSHM 2022, Volume 1
A2 - Rizzo, Piervincenzo
A2 - Milazzo, Alberto
PB - Springer Science and Business Media Deutschland GmbH
Y2 - 4 July 2022 through 7 July 2022
ER -