Bridge Damage Detection Using Weigh-in-Motion Technology

Daniel Cantero, Arturo González
2015 Journal of Bridge Engineering  
11 12 This paper proposes a novel level I damage detection technique for short to medium span 13 road bridges using weigh-in-motion (WIM) technology. The technique is based on the input 14 provided by two different WIM systems: (a) a pavement-based WIM station located in the 15 same route as the bridge (which gives vehicle weight estimates without the influence of the 16 bridge) and (b) a bridge-based WIM system which estimates vehicle weights based on the 17 deformation of the bridge. It is
more » ... he bridge. It is shown that the ratio of estimations of vehicle weights by both 18 systems is a reliable and robust indicator of structural integrity even for WIM systems with 19 relatively poor accuracy. Furthermore, this indicator is shown to be more sensitive to damage 20 than the traditional method based on variation in natural frequencies. 21 22 Keywords: 23 Weigh-in-Motion, bridge, damage detection, local and global damage, structural health 24 monitoring 25
doi:10.1061/(asce)be.1943-5592.0000674 fatcat:pxyje36wqbdizod4n7pk5xqtwi