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Utilizing Moving Vehicles As Sensors for Bridge Condition Screening – A Laboratory Verification

Sensors and Materials(2017)

Kyoto Univ | Queens Univ Belfast | Nikken Sekkei Civil Engn Ltd

Cited 43|Views3
Abstract
Health condition monitoring of bridge structures is attracting considerable attention, conventionally relying on visual inspection, and measurement-based methods that involve sensors installed directly on bridges. In recent years, drive-by monitoring methods that treat moving vehicles as moving sensors have been proposed as alternatives; these methods aim to be low-cost, mobile, and target fast bridge condition screening. In this study, we address the current lack of sufficient experimental verification of such methods. Laboratory experiments were conducted using a test vehicle system equipped with accelerometers in order to verify the practical feasibility of three drive-by methods: (1) bridge-frequency extraction using the Fourier spectrum of a vehicle's dynamic response, (2) damage detection using the change in a vehicle's spectral distribution pattern, and (3) roadway surface profile identification.
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Key words
damage detection,drive-by method,spectral analysis,roadway profile identification,vibration-based structural health monitoring
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