@inproceedings{173b76360cdf464891fab3d0e248c108,
title = "Measuring Dynamic Response of the Wilford Suspension Bridge with a Vision-Based Measurement System: A Case Study",
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",
author = "Rolands Kromanis and Said Elias",
note = "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. ; 10th European Workshop on Structural Health Monitoring, EWSHM 2022 ; Conference date: 04-07-2022 Through 07-07-2022",
year = "2023",
doi = "10.1007/978-3-031-07254-3\_28",
language = "English",
isbn = "9783031072536",
series = "Lecture Notes in Civil Engineering",
publisher = "Springer Science and Business Media Deutschland GmbH",
pages = "280--289",
editor = "Piervincenzo Rizzo and Alberto Milazzo",
booktitle = "European Workshop on Structural Health Monitoring, EWSHM 2022, Volume 1",
address = "Germany",
}