Research Article
May 1979
Weigh-in-Motion System Using Instrumented Bridges
Publication: Transportation Engineering Journal of ASCE
Volume 105, Issue 3
Abstract
Acquisition of truck axle and gross weight information is necessary for structural and maintenance requirements of bridges and pavements. A system is described combining traffic sensors and strain gages on highway bridge girders to obtain axle and gross weights. A weight prediction algorithm is derived herein that filters out the dynamic components of bridge response and obtains the equivalent static axle weights by a least-square error minimization. It utilizes self-balancing signal conditioners, magnetic tape switches, analog-digital converters, and a minicomputer to record field data on magnetic tape. Output is subsequently obtained on a digital computer. The system showed predictions of gross truck weight and tandem axles consistent with calibration trucks and random traffic. The paper also describes modifications of the system that would allow its routine use in obtaining weigh-in-motion truck data and would also permit weight processing in the field.
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Published In
Transportation Engineering Journal of ASCE
Volume 105 • Issue 3 • May 1979
Pages: 233 - 249
Copyright
© 1979 American Society of Civil Engineers.
History
Published in print: May 1979
Published online: Feb 5, 2021
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Authors
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Fred Moses, M.ASCE
Prof. of Civ. Engrg., Case Western Reserve Univ., Cleveland, Ohio.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.