Latest practical developments in the bridge WIM technology

2010 ◽  
pp. 216-216 ◽  
Author(s):  
A Žnidarič ◽  
I Lavrič ◽  
J Kalin
Keyword(s):  
Bridge Wim

scholarly journals Development and Testing of a Railway Bridge Weigh-in-Motion System

2020 ◽  
Vol 10 (14) ◽  
pp. 4708 ◽  
Author(s):  
Donya Hajializadeh ◽  
Aleš Žnidarič ◽  
Jan Kalin ◽  
Eugene John OBrien
Keyword(s):  
Constant Velocity ◽  
Regression Models ◽  
Variable Velocity ◽  
Railway Bridge ◽  
Motion System ◽  
Weigh In Motion ◽  
Calibration Methods ◽  
Bridge Weigh In Motion ◽  
Bridge Wim ◽  
Measured Response

This study describes the development and testing of a railway bridge weigh-in-motion (RB-WIM) system. The traditional bridge WIM (B-WIM) system developed for road bridges was extended here to calculate the weights of railway carriages. The system was tested using the measured response from a test bridge in Poland, and the accuracy of the system was assessed using statically-weighed trains. To accommodate variable velocity of the trains, the standard B-WIM algorithm, which assumes a constant velocity during the passage of a vehicle, was adjusted and the algorithm revised accordingly. The results showed that the vast majority of the calculated carriage weights fell within ±5% of their true, statically-weighed values. The sensitivity of the method to the calibration methods was then assessed using regression models, trained by different combinations of calibration trains.

scholarly journals Adaptation of Cross Entropy optimisation to a dynamic Bridge WIM calibration problem

2012 ◽  
Vol 44 ◽  
pp. 13-22 ◽  
Author(s):  
Jason Dowling ◽  
Eugene J. OBrien ◽  
Arturo González
Keyword(s):  
Cross Entropy ◽  
Calibration Problem ◽  
Bridge Wim
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