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Title |
Development of Moving Force Identification Algorithm Using Moment Influence Lines at Multiple - Axes and Density Estimation Function
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Keywords |
Moving force identification ; Moment influence line ; Density estimation function ; 이동하중식별 ; 모멘트 영향선 ; 밀도추정함수 |
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Abstract |
Estimating moving vehicle loads is important in modeling design loads for bridge design and construction. The paper proposes a moving force identification algorithm using moment influence lines measured at multi-axes. Density estimation function was applied to estimate more than two wheel loads when estimated load values fluctuated severely. The algorithm has been examined through simulation studies on a simple-span plate-girder bridge. Influences of measurement noise and error in velocity on the identification results were investigated in the simulation study. Also, laboratory experiments were carried out to examine the algorithm. The load identification capability was dependent on the type and speed of moving loads, but the developed algorithm could identify loads within 10% error in maximum.
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