Wavelet domain analysis for identification of vehicle axles from bridge measurements

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Title: Wavelet domain analysis for identification of vehicle axles from bridge measurements
Authors: Chatterjee, Pranesh
O'Brien, Eugene J.
Li, Yingyan
González, Arturo
Permanent link: http://hdl.handle.net/10197/2528
Date: Nov-2006
Abstract: Bridge Weigh-In-Motion (B-WIM) is a process by which the axle and gross vehicle weights of vehicles travelling at highway speeds can be determined from instrumented bridges. The traditional method of attaching strain transducers to the soffit of the bridge and placing axle detectors on the road surface has been replaced here by using additional transducers underneath the bridge for axle detection and Nothing-On-the-Road (NOR). This paper presents a wavelet based analysis of strain signals and shows the efficacy of using wavelets in pattern recognition of these signals. The transformed signals are used to identify axle passage and hence the vehicle velocity and the axle spacing. In addition to numerically generated strains, signals acquired from such a NOR instrumentation of a bridge in Slovenia have been analysed by the method of wavelet transformation to extract axle position information that was not readily detectable using existing methods.
Funding Details: Other funder
Type of material: Journal Article
Publisher: Elsevier
Copyright (published version): 2006 Elsevier Ltd
Keywords: BridgeWeigh-in-motionWaveletAxle detectionSignal processingAxle spacingNORWIMB-WIM
Subject LCSH: Bridges--Live loads
Motor vehicle scales
Wavelets (Mathematics)
Signal processing
DOI: 10.1016/j.compstruc.2006.04.013
Language: en
Status of Item: Peer reviewed
Appears in Collections:Critical Infrastructure Group Research Collection
Civil Engineering Research Collection

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