000012867 001__ 12867
000012867 005__ 20160920162652.0
000012867 04107 $$aeng
000012867 046__ $$k2016-09-05
000012867 100__ $$aMartínez, D.
000012867 24500 $$aDamage detection by drive-by monitoring using the vertical displacements of a bridge

000012867 24630 $$n6.$$pInsights and Innovations in Structural Engineering, Mechanics and Computation
000012867 260__ $$bTaylor and Francis Group, London, UK
000012867 506__ $$arestricted
000012867 520__ $$2eng$$aDrive-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.

000012867 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012867 653__ $$a

000012867 7112_ $$aSixth International Conference on Structural Engineering, Mechanics and Computation$$cCape Town, South Africa$$d2016-09-05 / 2016-09-07$$gSEMC2016
000012867 720__ $$aMartínez, D.$$iOBrien, E.J.$$iSevillano, E.
000012867 8560_ $$ffischerc@itam.cas.cz
000012867 8564_ $$s1219528$$uhttps://invenio.itam.cas.cz/record/12867/files/315.pdf$$yOriginal version of the author's contribution as presented on CD, 315.pdf.
000012867 962__ $$r12552
000012867 980__ $$aPAPER