Novel Virtual Simply Supported Beam Method for Detecting the Speed and Axles of Moving Vehicles on Bridges
Publication: Journal of Bridge Engineering
Volume 22, Issue 4
Abstract
One of the major drawbacks with most bridge weigh-in-motion (BWIM) methods that adopt the Moses algorithm is the need for acquisition of vehicle speed and axle spacing by using additional devices, such as free-of-axle detectors. This study presents a novel virtual simply supported beam (VSSB) method, which uses weighing sensors to directly identify the speed and the axle spacing of passing vehicles on bridges, making it very desirable for commercial BWIM systems. Numerical simulations and model tests are carried out to study the effectiveness and accuracy of the proposed method. The results show that the proposed method can successfully identify the vehicle speed and axle spacing with good accuracy. The proposed method also proves reliable under noisy conditions.
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Acknowledgments
The authors acknowledge the financial support provided by the National Natural Science Foundation of China (Grant 51478176) and the funding provided by the Hunan Communications Research Institute.
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Information & Authors
Information
Published In
Journal of Bridge Engineering
Volume 22 • Issue 4 • April 2017
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Aug 10, 2016
Accepted: Oct 13, 2016
Published online: Dec 7, 2016
Published in print: Apr 1, 2017
Discussion open until: May 7, 2017
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