Drive-by damage detection with a TSD and time-shifted curvature

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Title: Drive-by damage detection with a TSD and time-shifted curvature
Authors: Keenahan, Jennifer
O'Brien, Eugene J.
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Date: 11-May-2018
Online since: 2019-05-15T07:59:01Z
Abstract: ‘Drive-by’ damage detection is the concept of using sensors on a passing vehicle to detect damage in a bridge. The newly developed traffic speed deflectometer (TSD) is a device used for pavement velocity/deflection measurements and is investigated here in numerical simulations as a means of bridge damage detection. A TSD vehicle model containing five displacement sensors is simulated crossing a simply supported finite element beam containing damage simulated as a loss in stiffness of one of the elements. Time-shifted curvature is derived from the displacements and is proposed as a novel damage indicator, which removes the influence of the road profile and all vehicle motions except for pitch. Results show that the time-shifted curvature can be reliably used as a damage indicator in the presence of noise and changes in transverse position of the vehicle on the bridge.
Funding Details: Science Foundation Ireland
Type of material: Journal Article
Publisher: Springer
Journal: Journal of Civil Structural Health Monitoring
Volume: 8
Issue: 3
Start page: 383
End page: 394
Copyright (published version): 2018 Springer-Verlag GmbH Germany, part of Springer Nature
Keywords: BridgeDamageTraffic speed deflectometerCurvatureKurtosisDrive-bySMHHealth monitoring
DOI: 10.1007/s13349-018-0280-9
Language: en
Status of Item: Peer reviewed
Appears in Collections:Civil Engineering Research Collection

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