Type

Conference Proceedings

Authors

Enrique Sevillano
Eugene J. O'Brien
Daniel Martinez

Subjects

Engineering

Topics
finite element model drive by bridge shm moving reference finite element fe structural health monitoring

Damage Detection by Drive-by Monitoring Using the Vertical Displacements of a Bridge (2016)

Abstract Drive-by monitoring has received increasing attention in recent years, as it has great potential useful for Structural Health Monitoring (SHM) applications. Although direct instrumentation of civil infrastructures has been demonstrated to be a way of detecting damage, it is also a very expensive method as it requires data acquisition, storage and transmission facilities on each bridge. Drive-by constitutes an alternative that allows the monitoring of a bridge without the necessity of installing sensors on it. In this numerical study, the vertical displacements of the bridge are used for damage detection purposes. The goal of this paper is to describe a model that can reproduce the vertical displacements of the bridge when a simulated vehicle is driving through and show how these displacements change with damage. Vertical displacements are calculated before and after damage, so that the sensitivity of the data to bridge damage can be determined. A finite element (FE) model of a simply supported beam interacting with a moving half car is used in this study. Damage is represented as a loss of stiffness in several parts of the bridge. Vertical displacements are generated at a moving reference for healthy and damaged states, corresponding to vehicle location on the bridge. Two options are explored, the first axle and the second one, as the locations to fix the simulated sensor on the vehicle.
Collections Ireland -> University College Dublin -> TRUSS-ITN Research Collection
Ireland -> University College Dublin -> Civil Engineering Research Collection

Full list of authors on original publication

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

Experts in our system

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