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Open AccessArticle

Experimental Dynamic Impact Factor Assessment of Railway Bridges through a Radar Interferometer

1
Department of Information Engineering, University of Florence, Via Santa Marta, 3 50139 Firenze, Italy
2
GeoRAYAN Ltd. Unit 4, No 6, Yas Alley, Yas St., Alikhani St., South Shiraz St., Tehran 1436953859, Iran
*
Author to whom correspondence should be addressed.
Remote Sens. 2019, 11(19), 2207; https://doi.org/10.3390/rs11192207
Received: 9 August 2019 / Revised: 13 September 2019 / Accepted: 20 September 2019 / Published: 21 September 2019
The dynamic impact factor (IM) is a widely accepted parameter to account for the effect of vehicles on bridges. An accurate evaluation of this IM is of paramount importance in bridge engineering, both for designing safe and economical new bridges, and for the assessment of the existing ones. At the state of the art, the current procedure for the experimental assessment of the IM of a bridge relies upon the deployment of a sensor network. The aim of this article is to propose the use of a remote sensor, the interferometric radar, for assessing the IM without the deployment of any sensor on the bridge, with evident advantages in terms of cost, time and safety of the workers. Two different case studies of bridges in Northern Iran are reported. In both cases the interferometric radar has been demonstrated an effective and reliable measurement equipment for this kind of in-field assessment. View Full-Text
Keywords: bridge monitoring; health structure monitoring; impact factor; radar; remote sensing; sensor bridge monitoring; health structure monitoring; impact factor; radar; remote sensing; sensor
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MDPI and ACS Style

Pieraccini, M.; Miccinesi, L.; Abdorazzagh Nejad, A.; Naderi Nejad Fard, A. Experimental Dynamic Impact Factor Assessment of Railway Bridges through a Radar Interferometer. Remote Sens. 2019, 11, 2207.

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