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Title |
Simplified Bridge Weigh-In-Motion Algorithm using Strain Response of Short Span RC T-beam Bridge with no Crossbeam installed
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Authors |
전준창(Jun-Chang) ; 황윤국(Jeon) ; 이희현(Yoon Koog) |
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DOI |
https://doi.org/10.11112/jksmi.2021.25.3.57 |
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Keywords |
단순화된 BWIM 알고리즘; 현장실험; 구조특성; 단지간 RC-T빔교; 가로보 Simplified BWIM algorithm; Field test; Structural characteristics; Short span RC-T beam bridge; Crossbeam |
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Abstract |
A thorough administration of the arterial road network requires a continuous supply of updated and accurate information about the traffic that travels on the roads. One of the ways to effectively obtain the traffic volume and weight distribution of heavy vehicles is the BWIM technique, which is actively being studied. Unlike previous studies, this study was performed to develop a simplified Bridge Weigh-In-Motion (BWIM) algorithm that can easily estimate the axle spacing and weight of a traveling vehicle by utilizing the structural characteristics of the bridge. A short span RC T-beam bridge with no crossbeam installed was selected for the study, and then the strain response characteristics of bridge deck and girder was checked through preliminary field test. Based on the preliminary field test results, a simplified BWIM algorithm suitable for the bridge to be studied was derived. The validity and accuracy of the BWIM algorithm derived in this study were verified through field test. As a result of the verification test, the proposed BWIM algorithm can estimate the axle spacing and gross weight of the travelling vehicles with the average percent error of less than 3%.
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