Estimation of Live Load Distribution Factor for a PSC I Girder Bridge in an Ambient Vibration Test

Maintenance of bridges in use is essential and measuring the live load distribution factor (LLDF) of a bridge to examine bridge integrity and safety is important. A vehicle loading test has been used to measure the LLDF of a bridge. To carry this out on a bridge in use, traffic control is required b...

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Autores principales: Sung-Wan Kim, Da-Woon Yun, Dong-Uk Park, Sung-Jin Chang, Jae-Bong Park
Formato: article
Lenguaje:EN
Publicado: MDPI AG 2021
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spelling oai:doaj.org-article:12313a3c4aa940ae94a3ec5fe80bfbdb2021-11-25T16:42:53ZEstimation of Live Load Distribution Factor for a PSC I Girder Bridge in an Ambient Vibration Test10.3390/app1122110102076-3417https://doaj.org/article/12313a3c4aa940ae94a3ec5fe80bfbdb2021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/11010https://doaj.org/toc/2076-3417Maintenance of bridges in use is essential and measuring the live load distribution factor (LLDF) of a bridge to examine bridge integrity and safety is important. A vehicle loading test has been used to measure the LLDF of a bridge. To carry this out on a bridge in use, traffic control is required because loading must be performed at designated positions using vehicles whose details are known. This makes it difficult to measure LLDF. This study proposed a method of estimating the LLDF of a bridge using the vertical displacement response caused by traveling vehicles under ambient vibration conditions in the absence of vehicle control. Since the displacement response measured from a bridge included both static and dynamic components, the static component required for the estimation of LLDF was extracted using empirical mode decomposition (EMD). The vehicle loading and ambient vibration tests were conducted to verify the validity of the proposed method. It was confirmed that the proposed method can effectively estimate the LLDF of a bridge if the vehicle type and driving lane on the bridge are identified in the ambient vibration test.Sung-Wan KimDa-Woon YunDong-Uk ParkSung-Jin ChangJae-Bong ParkMDPI AGarticlebridgeambient vibration testlive load distribution factorempirical mode decompositiondisplacement responseTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 11010, p 11010 (2021)
institution DOAJ
collection DOAJ
language EN
topic bridge
ambient vibration test
live load distribution factor
empirical mode decomposition
displacement response
Technology
T
Engineering (General). Civil engineering (General)
TA1-2040
Biology (General)
QH301-705.5
Physics
QC1-999
Chemistry
QD1-999
spellingShingle bridge
ambient vibration test
live load distribution factor
empirical mode decomposition
displacement response
Technology
T
Engineering (General). Civil engineering (General)
TA1-2040
Biology (General)
QH301-705.5
Physics
QC1-999
Chemistry
QD1-999
Sung-Wan Kim
Da-Woon Yun
Dong-Uk Park
Sung-Jin Chang
Jae-Bong Park
Estimation of Live Load Distribution Factor for a PSC I Girder Bridge in an Ambient Vibration Test
description Maintenance of bridges in use is essential and measuring the live load distribution factor (LLDF) of a bridge to examine bridge integrity and safety is important. A vehicle loading test has been used to measure the LLDF of a bridge. To carry this out on a bridge in use, traffic control is required because loading must be performed at designated positions using vehicles whose details are known. This makes it difficult to measure LLDF. This study proposed a method of estimating the LLDF of a bridge using the vertical displacement response caused by traveling vehicles under ambient vibration conditions in the absence of vehicle control. Since the displacement response measured from a bridge included both static and dynamic components, the static component required for the estimation of LLDF was extracted using empirical mode decomposition (EMD). The vehicle loading and ambient vibration tests were conducted to verify the validity of the proposed method. It was confirmed that the proposed method can effectively estimate the LLDF of a bridge if the vehicle type and driving lane on the bridge are identified in the ambient vibration test.
format article
author Sung-Wan Kim
Da-Woon Yun
Dong-Uk Park
Sung-Jin Chang
Jae-Bong Park
author_facet Sung-Wan Kim
Da-Woon Yun
Dong-Uk Park
Sung-Jin Chang
Jae-Bong Park
author_sort Sung-Wan Kim
title Estimation of Live Load Distribution Factor for a PSC I Girder Bridge in an Ambient Vibration Test
title_short Estimation of Live Load Distribution Factor for a PSC I Girder Bridge in an Ambient Vibration Test
title_full Estimation of Live Load Distribution Factor for a PSC I Girder Bridge in an Ambient Vibration Test
title_fullStr Estimation of Live Load Distribution Factor for a PSC I Girder Bridge in an Ambient Vibration Test
title_full_unstemmed Estimation of Live Load Distribution Factor for a PSC I Girder Bridge in an Ambient Vibration Test
title_sort estimation of live load distribution factor for a psc i girder bridge in an ambient vibration test
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/12313a3c4aa940ae94a3ec5fe80bfbdb
work_keys_str_mv AT sungwankim estimationofliveloaddistributionfactorforapscigirderbridgeinanambientvibrationtest
AT dawoonyun estimationofliveloaddistributionfactorforapscigirderbridgeinanambientvibrationtest
AT dongukpark estimationofliveloaddistributionfactorforapscigirderbridgeinanambientvibrationtest
AT sungjinchang estimationofliveloaddistributionfactorforapscigirderbridgeinanambientvibrationtest
AT jaebongpark estimationofliveloaddistributionfactorforapscigirderbridgeinanambientvibrationtest
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