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Title |
Application for a BWIM Algorithm Using Density Estimation Function and Average Modification Factor in The Field Test
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Keywords |
BWIM ; 다주형교량 ; 밀도추정함수 ; 평균보정계수 ; BWIM ; Multi-girder bridge ; Density estimation function ; Average modification factor |
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Abstract |
The paper aims at developing a more reliable and accurate BWIM(Bridge Weigh-In-Motion) algorithm using measured strain data and examining its efficiency with various tests on bridges. It proposes a BWIM algorithm using density estimation function and average modification factor for moment-strain relationship. Density estimation function has been proved to be reliably applied when multiple axle loads are estimated. An average modification factor is applied to minimize overall error that can be encountered between theoretically computed moments and measured strains at multiple locations in a bridge. The developed algorithm has been successfully examined through numerical simulations, laboratory tests, and also by field tests on a multi-girder composite bridge.
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