Determination of Bridge Natural Frequencies Using a Moving Vehicle Instrumented with Accelerometers and GPS

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Title: Determination of Bridge Natural Frequencies Using a Moving Vehicle Instrumented with Accelerometers and GPS
Authors: González, Arturo
Covián, E.
Madera, J.
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Date: Sep-2008
Abstract: An instrumented vehicle fitted with accelerometers and GPS allows recording frequencies with position. This information can be used to determine the main frequencies of a bridge as the vehicle traverses it. The accelerations, that contain the dynamic excitation result of the interaction between vehicle and bridge, can be processed using spectrum analysis. Numerical simulations are used to define the accuracy of the predicted frequency for a number of scenarios. Accuracy typically gets better as the bridge span increases, the vehicle speed decreases and the road gets smoother. Experimental data is also employed to test this measuring technique.
Type of material: Conference Publication
Publisher: Civil-Comp Press
Copyright (published version): 2008 Civil-Comp Press and Saxe-Coburg Publications
Keywords: GPSFrequencyVehicleBridgeAccelerationMonitoring
DOI: 10.4203/ccp.88.281
Language: en
Status of Item: Peer reviewed
Conference Details: Proceedings of the Ninth International Conference on Computational Structures Technology, CST2008, Athens, Greece, 2-5 September, 2008
Appears in Collections:Civil Engineering Research Collection

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