Instantaneous Curvature in Bridge Damage Detection

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Title: Instantaneous Curvature in Bridge Damage Detection
Authors: Sevillano, Enrique
O'Brien, Eugene J.
Martinez, Daniel
Permanent link: http://hdl.handle.net/10197/7768
Date: 27-May-2016
Abstract: Among all the Structural Health Monitoring (SHM) recent methods found in literature, drive-by monitoring has demonstrated to be promising for damage detection purposes, particularly in bridges. As curvatures can be derived from displacement measurements taken by this method, they can also be used for damage detection, which has already been successfully demonstrated. This paper describes the use of Instantaneous Curvature (IC) for that purpose. Once the absolute displacements of the bridge are measured, damage location and quantification can be obtained through IC when having a moving reference over a bridge. In this paper, a bridge is represented by a finite element model of a Euler-Bernoulli beam. A Half-Car model of a vehicle is used to represent a Traffic Speed Deflectometer (TSD), a drive-by monitoring vehicle. Damage is represented as a loss of stiffness in different parts of the bridge and 1 % measurement noise is added. A generic road profile is also considered. Healthy and damaged states of the bridge are compared in order to validate the method.
Funding Details: European Commission Horizon 2020
Type of material: Conference Publication
Keywords: Drive-by monitoringStructural health monitoringSHMInstantaneous curvatureMultiple damagesTraffic speed deflectometerTSDNoiseProfile
Language: en
Status of Item: Not peer reviewed
Conference Details: Proceedings of the CSHM-6: Structural Health Monitoring of New and Ageing Infrastructure, Queen's University Belfast, Belfast, United Kingdom, 26-27 May 2016
Appears in Collections:Civil Engineering Research Collection
TRUSS-ITN Research Collection

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