Drive-by damage detection in bridges using the apparent profile

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Title: Drive-by damage detection in bridges using the apparent profile
Authors: O'Brien, Eugene J.
Keenahan, Jennifer
Permanent link: http://hdl.handle.net/10197/7053
Date: May-2015
Abstract: The concept of using sensors on a passing vehicle, rather than on the bridge, is known as 'Drive-by' damage detection. The newly developed traffic speed deflectometer (TSD) is a device used for pavement deflection measurements and is investigated here in numerical simulations as a means of bridge damage detection. A TSD vehicle model containing two displacement sensors is simulated crossing a simply supported finite element beam containing damage simulated as a loss in stiffness of one of the elements. An adapted Cross Entropy optimisation algorithm procedure is proposed to determine the apparent profile, where the displacements recorded by the sensors are used as the inputs. The time-shifted difference in the apparent profile is used as the damage indicator. Results show that this can be reliably used as a damage indicator in the presence of noise and changes in the transverse position of the vehicle on the bridge.
Funding Details: Science Foundation Ireland
Type of material: Journal Article
Publisher: Wiley
Copyright (published version): 2014 John Wiley & Sons, Ltd.
Keywords: TSD;RWD;Bridge;Damage;Highway;Speed;Traffic speed deflectometer;Optimization;Time-shifted
DOI: 10.1002/stc.1721
Language: en
Status of Item: Peer reviewed
Appears in Collections:Civil Engineering Research Collection

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