Fatigue Load Model Using the Weigh-in-Motion System for Highway Bridges in China
Publication: Journal of Bridge Engineering
Volume 22, Issue 6
Abstract
The development of the Chinese economy is associated with many changes in vehicle loads, particularly the increasing numbers of heavy trucks and other types of vehicles. However, currently, no standard vehicle has been identified for studying the fatigue design of highway bridges in China. Using the weigh-in-motion system, the authors obtained vehicle loads of 23 Chinese provinces. Miner’s rule for cumulative fatigue damage was then used to categorize each vehicle as one of eight representative types according to load. From these types, five equivalent vehicle models were found. Subsequently, simplified fatigue load spectra for highway bridges were obtained for each province. The six-axle vehicle can be used as the standard fatigue vehicle for most provinces, except in Zhejiang and Guizhou, in which three- and four-axle vehicles are most representative. Also, a standard fatigue vehicle for China is proposed.
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Acknowledgments
This study was sponsored partially by the National Basic Research Development Program of China (973 Program) (Grant 2015CB057701), the National Science Foundation of China (Grants 51378081 and 51108044), Hunan Provincial Innovation Foundation for Postgraduates (Grant CX2016B387), and Open Fund of Industry Key Laboratory of Traffic Infrastructure Security Risk Management (CSUST) (Grant 16BCX07).
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Information & Authors
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Published In
Journal of Bridge Engineering
Volume 22 • Issue 6 • June 2017
Copyright
© 2017 American Society of Civil Engineers.
History
Received: May 12, 2016
Accepted: Jan 6, 2017
Published online: Mar 1, 2017
Published in print: Jun 1, 2017
Discussion open until: Aug 1, 2017
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