Development of a wireless monitoring system for fracture-critical bridges

Fasl, Jeremiah; Samaras, Vasileios; Reichenbach, Matthew C.; Helwig, Todd A.; Wood, Sharon L.; Potter, David; Lindenberg, Richard; Frank, Karl H.

doi:10.1117/12.879819

Cited by 2 publications

(1 citation statement)

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“…Full-scale monitoring of highway bridges (Kim et al, 2007) and pedestrian bridges (Rice et al, 2010) have been accomplished and such investigations can provide real-time monitoring of the structures (Torbol, 2014). Such real-time monitoring is particularly important for the detection of growth of existing cracks and development of fresh cracks in fracture prone bridges (Fasl et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Effect of Road Surface, Vehicle, and Device Characteristics on Energy Harvesting from Bridge–Vehicle Interactions

Cahill

Jaksic

Keane

et al. 2016

Computer aided Civil Eng

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Energy harvesting to power sensors for structural health monitoring (SHM) has received huge attention worldwide. A number of practical aspects affecting energy harvesting and the possibility of health monitoring directly from energy harvesters is investigated here. The key idea is the amount of power received from a damaged and an undamaged structure varying and the signature of such variation can be used for SHM. For this study, a damaged bridge and an undamaged bridge are considered with harvesters located at different positions and the power harvested is accessed numerically to determine how energy harvesting can act as a damage detector and monitor. Bridge–vehicle interaction is exploited to harvest energy. For a damaged bridge, a bilinear breathing crack is considered. Variable surface roughness according to ISO 8606:1995(E) is considered such that the real values can be considered in the simulation. The possibility of a drive‐by type health monitoring using energy harvesting is highlighted and the effects of road surface on such monitoring are identified. The sensitivity of the harvester health monitoring to locations and extents of crack damage are reported. This study investigates the effects of multiple harvesters and the effects of vehicular parameters on the harvested power. Continuous harvesting over a length of the bridge is considered semianalytically. A comparison among the numerical simulations, detailed finite element analysis, and experimental results emphasizes the feasibility of the proposed method.

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Section: Introductionmentioning

confidence: 99%