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Single-Camera-Based Bridge Structural Displacement Measurement with Traffic Counting

Vision-based structural displacement methods allow convenient monitoring of civil structures such as bridges, though they are often limited due to the small number of measurement points, constrained spatial resolution, and inability to identify the acting forces of the measured displacement. To incr...

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Detalles Bibliográficos
Autores principales: Aliansyah, Zulhaj, Shimasaki, Kohei, Senoo, Taku, Ishii, Idaku, Umemoto, Shuji
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8271680/
https://www.ncbi.nlm.nih.gov/pubmed/34282780
http://dx.doi.org/10.3390/s21134517
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author Aliansyah, Zulhaj
Shimasaki, Kohei
Senoo, Taku
Ishii, Idaku
Umemoto, Shuji
author_facet Aliansyah, Zulhaj
Shimasaki, Kohei
Senoo, Taku
Ishii, Idaku
Umemoto, Shuji
author_sort Aliansyah, Zulhaj
collection PubMed
description Vision-based structural displacement methods allow convenient monitoring of civil structures such as bridges, though they are often limited due to the small number of measurement points, constrained spatial resolution, and inability to identify the acting forces of the measured displacement. To increase the number of measurement points in vision-based bridge displacement measurement, this study introduces a front-view tandem marker motion capture system with side-view traffic counting to identify the force-inducing passing vehicles on the bridge’s deck. The proposed system was able to measure structural displacement at submillimeter resolution on eight measurement points at once at a distance of 40.8–64.2 m from a front-view camera. The traffic counting system with a side-view camera recorded the passing vehicles from two opposing lanes. We conducted a 35-min experiment for a 25 m-span steel road bridge with hundreds of cars passing over it and confirmed dynamic displacement distributions with amplitudes of several millimeters when large vehicles passed.
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spelling pubmed-82716802021-07-11 Single-Camera-Based Bridge Structural Displacement Measurement with Traffic Counting Aliansyah, Zulhaj Shimasaki, Kohei Senoo, Taku Ishii, Idaku Umemoto, Shuji Sensors (Basel) Article Vision-based structural displacement methods allow convenient monitoring of civil structures such as bridges, though they are often limited due to the small number of measurement points, constrained spatial resolution, and inability to identify the acting forces of the measured displacement. To increase the number of measurement points in vision-based bridge displacement measurement, this study introduces a front-view tandem marker motion capture system with side-view traffic counting to identify the force-inducing passing vehicles on the bridge’s deck. The proposed system was able to measure structural displacement at submillimeter resolution on eight measurement points at once at a distance of 40.8–64.2 m from a front-view camera. The traffic counting system with a side-view camera recorded the passing vehicles from two opposing lanes. We conducted a 35-min experiment for a 25 m-span steel road bridge with hundreds of cars passing over it and confirmed dynamic displacement distributions with amplitudes of several millimeters when large vehicles passed. MDPI 2021-07-01 /pmc/articles/PMC8271680/ /pubmed/34282780 http://dx.doi.org/10.3390/s21134517 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Aliansyah, Zulhaj
Shimasaki, Kohei
Senoo, Taku
Ishii, Idaku
Umemoto, Shuji
Single-Camera-Based Bridge Structural Displacement Measurement with Traffic Counting
title Single-Camera-Based Bridge Structural Displacement Measurement with Traffic Counting
title_full Single-Camera-Based Bridge Structural Displacement Measurement with Traffic Counting
title_fullStr Single-Camera-Based Bridge Structural Displacement Measurement with Traffic Counting
title_full_unstemmed Single-Camera-Based Bridge Structural Displacement Measurement with Traffic Counting
title_short Single-Camera-Based Bridge Structural Displacement Measurement with Traffic Counting
title_sort single-camera-based bridge structural displacement measurement with traffic counting
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8271680/
https://www.ncbi.nlm.nih.gov/pubmed/34282780
http://dx.doi.org/10.3390/s21134517
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