Using Instrumented Vehicles to Detect Damage in Bridges

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Title: Using Instrumented Vehicles to Detect Damage in Bridges
Authors: O'Brien, Eugene J.
Keenahan, Jennifer
McGetrick, P.
González, Arturo
Permanent link: http://hdl.handle.net/10197/6311
Date: Sep-2012
Abstract: This paper describes a drive-by method of bridge inspection using an instrumented vehicle. Accelerometers on the vehicle are proposed as a means of detecting damage on the bridge in the time it takes for the vehicle to cross the bridge at full highway speed. For a perfectly smooth road profile, the method is shown to be feasible. Changes in bridge damping, which is an indicator of damage, are clearly visible in the acceleration signal of a quarter-car vehicle on a smooth road surface modelled using MatLab. When road profile is considered, the influence of changes in bridge damping on the vehicle acceleration signal is much less clear. However, when a half-car model is used on a road with a rough profile, it is again possible to detect changes in bridge damping, provided the vehicle has two identical axles.
Funding Details: Science Foundation Ireland
Type of material: Conference Publication
Copyright (published version): 2012 the authors
Keywords: Brige;Damage;Damping;Dynamics;Vehicle bridge interaction;Damage detection;Drive by
Language: en
Status of Item: Peer reviewed
Conference Details: BCRI 12 - Bridge and Concrete Research in Ireland, Dublin, 6-7 September, 2012
Appears in Collections:Earth Institute Research Collection
Civil Engineering Research Collection

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