Damage Identification in Hangers of Through-Arch Bridges Using Static Deflection Difference at the Anchorage Point

This study proposes a new damage identification method for hangers of arch bridges using the static deflection difference at the anchorage point of the hanger and the tie-beam. The relationship between the ratio of cable tension loss and the deflection difference at the anchorage point is studied. F...

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Autores principales:	Weiwei Wang, Mubiao Su
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	deflection difference anchorage point damage identification hanger through-arch bridges Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/3ad171a81393464288436da55d277e97
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spelling	oai:doaj.org-article:3ad171a81393464288436da55d277e972021-11-25T16:38:03ZDamage Identification in Hangers of Through-Arch Bridges Using Static Deflection Difference at the Anchorage Point10.3390/app1122107802076-3417https://doaj.org/article/3ad171a81393464288436da55d277e972021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/10780https://doaj.org/toc/2076-3417This study proposes a new damage identification method for hangers of arch bridges using the static deflection difference at the anchorage point of the hanger and the tie-beam. The relationship between the ratio of cable tension loss and the deflection difference at the anchorage point is studied. For the first time, the deflection difference influence matrix for hanger damage identification is defined. The static deflection change parameter is formulated as a function of the deflection difference influence matrix and the ratio of cable tension loss. The study shows that the percentage of cable tension loss can be obtained from the changes in static deflection at the anchorage point and the deflection difference influence matrix. Therefore, by observing a plot of the ratio of cable tension loss, the damage locations can be identified conveniently. Numerical and laboratory studies show that this method can accurately locate the damaged hanger of through-arch bridges under various scenarios. The proposed damage detection method has a clear theoretical base and is simple to operate, and it is suitable for practical engineering.Weiwei WangMubiao SuMDPI AGarticledeflection differenceanchorage pointdamage identificationhangerthrough-arch bridgesTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10780, p 10780 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	deflection difference anchorage point damage identification hanger through-arch bridges Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	deflection difference anchorage point damage identification hanger through-arch bridges Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Weiwei Wang Mubiao Su Damage Identification in Hangers of Through-Arch Bridges Using Static Deflection Difference at the Anchorage Point
description	This study proposes a new damage identification method for hangers of arch bridges using the static deflection difference at the anchorage point of the hanger and the tie-beam. The relationship between the ratio of cable tension loss and the deflection difference at the anchorage point is studied. For the first time, the deflection difference influence matrix for hanger damage identification is defined. The static deflection change parameter is formulated as a function of the deflection difference influence matrix and the ratio of cable tension loss. The study shows that the percentage of cable tension loss can be obtained from the changes in static deflection at the anchorage point and the deflection difference influence matrix. Therefore, by observing a plot of the ratio of cable tension loss, the damage locations can be identified conveniently. Numerical and laboratory studies show that this method can accurately locate the damaged hanger of through-arch bridges under various scenarios. The proposed damage detection method has a clear theoretical base and is simple to operate, and it is suitable for practical engineering.
format	article
author	Weiwei Wang Mubiao Su
author_facet	Weiwei Wang Mubiao Su
author_sort	Weiwei Wang
title	Damage Identification in Hangers of Through-Arch Bridges Using Static Deflection Difference at the Anchorage Point
title_short	Damage Identification in Hangers of Through-Arch Bridges Using Static Deflection Difference at the Anchorage Point
title_full	Damage Identification in Hangers of Through-Arch Bridges Using Static Deflection Difference at the Anchorage Point
title_fullStr	Damage Identification in Hangers of Through-Arch Bridges Using Static Deflection Difference at the Anchorage Point
title_full_unstemmed	Damage Identification in Hangers of Through-Arch Bridges Using Static Deflection Difference at the Anchorage Point
title_sort	damage identification in hangers of through-arch bridges using static deflection difference at the anchorage point
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/3ad171a81393464288436da55d277e97
work_keys_str_mv	AT weiweiwang damageidentificationinhangersofthrougharchbridgesusingstaticdeflectiondifferenceattheanchoragepoint AT mubiaosu damageidentificationinhangersofthrougharchbridgesusingstaticdeflectiondifferenceattheanchoragepoint
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Damage Identification in Hangers of Through-Arch Bridges Using Static Deflection Difference at the Anchorage Point

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