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contributor authorTommy H.T. Chan
contributor authorDemeke B. Ashebo
date accessioned2017-05-09T00:22:08Z
date available2017-05-09T00:22:08Z
date copyrightAugust, 2006
date issued2006
identifier issn1048-9002
identifier otherJVACEK-28881#521_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/134936
description abstractLaboratory study on the identification of moving vehicle axle loads on a multi-span continuous bridge from the measured bending moment responses is presented. A bridge-vehicle system model was fabricated in the laboratory. The bridge was modeled as a three span continuous beam and the car was modeled as a vehicle model with two-axle loads. A number of strain gauges were adhered to the bottom surface of the beam to measure the bending moment responses. Using measured bending moment responses as an input, the corresponding inverse problem was solved to identify moving loads. The moving forces were identified when considering bending moment responses from all spans of the beam. In order to avoid the lower identification accuracy around the inner supports of continuous bridge and to improve the computation efficiency, the moving force identification from the target (one selected) span of the continuous bridge was studied. The rebuilt responses were reconstructed from the identified loads as a forward problem. To study the accuracy of the method the relative percentage errors were calculated with respect to the measured and the rebuilt bending moment responses. The rebuilt bending moment responses obtained from the identified forces are in good agreement with the measured bending moment responses. This indirectly shows that the method is capable of identifying moving loads on continuous supported bridges.
publisherThe American Society of Mechanical Engineers (ASME)
titleMoving Axle Load From Multi-Span Continuous Bridge: Laboratory Study
typeJournal Paper
journal volume128
journal issue4
journal titleJournal of Vibration and Acoustics
identifier doi10.1115/1.2202154
journal fristpage521
journal lastpage526
identifier eissn1528-8927
keywordsStress
keywordsVehicles
keywordsForce
keywordsArches
keywordsErrors AND Sensors
treeJournal of Vibration and Acoustics:;2006:;volume( 128 ):;issue: 004
contenttypeFulltext


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