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Deformation Monitoring for Chinese Traditional Timber Buildings Using Fiber Bragg Grating Sensors

The Fiber Bragg Grating (FBG) sensing technique is suitable for a wide variety of measurements, including temperature, pressure, acceleration, liquid level, etc., and has been applied to many bridges and buildings in the past two decades. The fact that the FBG technique can only monitor and measure...

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Detalles Bibliográficos
Autores principales: Li, Ni-Lei, Jiang, Shao-Fei, Wu, Ming-Hao, Shen, Sheng, Zhang, Ying
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6022200/
https://www.ncbi.nlm.nih.gov/pubmed/29921810
http://dx.doi.org/10.3390/s18061968
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author Li, Ni-Lei
Jiang, Shao-Fei
Wu, Ming-Hao
Shen, Sheng
Zhang, Ying
author_facet Li, Ni-Lei
Jiang, Shao-Fei
Wu, Ming-Hao
Shen, Sheng
Zhang, Ying
author_sort Li, Ni-Lei
collection PubMed
description The Fiber Bragg Grating (FBG) sensing technique is suitable for a wide variety of measurements, including temperature, pressure, acceleration, liquid level, etc., and has been applied to many bridges and buildings in the past two decades. The fact that the FBG technique can only monitor and measure strain data for most cases when it is used for deformation measurements impedes application of the FBG sensing technique in civil infrastructures. This paper proposes FBG sensing-based deformation monitoring methods that are applicable to monitoring beam deflection, column inclination angle and mortise-tenon joint dislocation for Chinese traditional timber structures. On the basis of improved conjugated beam theory and geometrical trigonometric function relationship, the relationships between the FBG sensing strain values and the deflection of beam, inclination angle of column, as well as the amount of dislocation of mortise-tenon joint are deducted for Chinese traditional buildings. A series of experiments were conducted to verify the applicability and effectiveness of the proposed deformation monitoring methods. The results show that a good agreement is obtained between the values given by the methods proposed in this paper and other methods. This implies that the proposed deformation monitoring methods are applicable and effective in the health monitoring of Chinese traditional timber structures.
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spelling pubmed-60222002018-07-02 Deformation Monitoring for Chinese Traditional Timber Buildings Using Fiber Bragg Grating Sensors Li, Ni-Lei Jiang, Shao-Fei Wu, Ming-Hao Shen, Sheng Zhang, Ying Sensors (Basel) Article The Fiber Bragg Grating (FBG) sensing technique is suitable for a wide variety of measurements, including temperature, pressure, acceleration, liquid level, etc., and has been applied to many bridges and buildings in the past two decades. The fact that the FBG technique can only monitor and measure strain data for most cases when it is used for deformation measurements impedes application of the FBG sensing technique in civil infrastructures. This paper proposes FBG sensing-based deformation monitoring methods that are applicable to monitoring beam deflection, column inclination angle and mortise-tenon joint dislocation for Chinese traditional timber structures. On the basis of improved conjugated beam theory and geometrical trigonometric function relationship, the relationships between the FBG sensing strain values and the deflection of beam, inclination angle of column, as well as the amount of dislocation of mortise-tenon joint are deducted for Chinese traditional buildings. A series of experiments were conducted to verify the applicability and effectiveness of the proposed deformation monitoring methods. The results show that a good agreement is obtained between the values given by the methods proposed in this paper and other methods. This implies that the proposed deformation monitoring methods are applicable and effective in the health monitoring of Chinese traditional timber structures. MDPI 2018-06-19 /pmc/articles/PMC6022200/ /pubmed/29921810 http://dx.doi.org/10.3390/s18061968 Text en © 2018 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Li, Ni-Lei
Jiang, Shao-Fei
Wu, Ming-Hao
Shen, Sheng
Zhang, Ying
Deformation Monitoring for Chinese Traditional Timber Buildings Using Fiber Bragg Grating Sensors
title Deformation Monitoring for Chinese Traditional Timber Buildings Using Fiber Bragg Grating Sensors
title_full Deformation Monitoring for Chinese Traditional Timber Buildings Using Fiber Bragg Grating Sensors
title_fullStr Deformation Monitoring for Chinese Traditional Timber Buildings Using Fiber Bragg Grating Sensors
title_full_unstemmed Deformation Monitoring for Chinese Traditional Timber Buildings Using Fiber Bragg Grating Sensors
title_short Deformation Monitoring for Chinese Traditional Timber Buildings Using Fiber Bragg Grating Sensors
title_sort deformation monitoring for chinese traditional timber buildings using fiber bragg grating sensors
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6022200/
https://www.ncbi.nlm.nih.gov/pubmed/29921810
http://dx.doi.org/10.3390/s18061968
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