Using instrumented vehicles to detect damage in bridges

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Title: Using instrumented vehicles to detect damage in bridges
Authors: Keenahan, Jennifer
McGetrick, P.
O'Brien, Eugene J.
González, Arturo
Permanent link: http://hdl.handle.net/10197/4100
Date: 22-Jul-2012
Abstract: Bridge structures are subject to continuous degradation due to the environment, ageing and excess loading. Monitoring of bridges is a key part of any maintenance strategy as it can give early warning if a bridge is becoming unsafe. This paper will theoretically assess the ability of a vehicle fitted with accelerometers on its axles to detect changes in damping of bridges, which may be the result of damage. Two vehicle models are used in this investigation. The first is a two degree-of-freedom quarter-car and the second is a four degree-of-freedom halfcar. The bridge is modelled as a simply supported beam and the interaction between the vehicle and the bridge is a coupled dynamic interaction algorithm. Both smooth and rough road profiles are used in the simulation and results indicate that changes in bridge damping can be detected by the vehicle models for a range of vehicle velocities and bridge spans.
Type of material: Conference Publication
Publisher: Faculty of Engineering, University of Porto
Copyright (published version): n/a
Keywords: BridgeDamageVehicleAccelerometerDampingFrequency
Language: en
Status of Item: Not peer reviewed
Conference Details: 15th International Conference on Experimental Mechanics, Porto, Portugal, 22-27 July 2012, Paper No. 2934
Appears in Collections:Earth Institute Research Collection
Civil Engineering Research Collection

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