Type

Conference Proceedings

Authors

Daniel Martinez
Eugene J. O'Brien
Enrique Sevillano

Subjects

Engineering

Topics
structural health monitoring traffic speed deflectometer tsd noise drive by monitoring instantaneous curvature multiple damages shm profile

Instantaneous Curvature in Bridge Damage Detection (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.
Collections Ireland -> University College Dublin -> Civil Engineering Research Collection

Full list of authors on original publication

Daniel Martinez, Eugene J. O'Brien, Enrique Sevillano

Experts in our system

1
Daniel Martinez
University College Dublin
Total Publications: 8
 
2
Eugene J. O'Brien
University College Dublin
Total Publications: 192
 
3
Enrique Sevillano
University College Dublin
Total Publications: 7