Shear force-based method for detecting vehicle speed and axle spacing

Lu Deng, Wei He, C. S. Cai, Yang Yu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Bridge weigh-in-motion (BWIM) system uses the bridge as a scale to estimate vehicle weights. For BWIM systems, reliable axle detection is a prerequisite for the accurate identification of axle weights and GVW. The existing nothing-on-road (NOR) BWIM systems typically use additional sensors, such as the freeof- axle-detector (FAD) sensors, for axle detection. However, these NOR axle detection strategies were reported to be only suitable for certain types of bridges and susceptible to wheel transverse positions. In this study, a equivalent shear force (ESF) method is proposed to identify vehicle speed and axle spacing by using the flexural strain signal recorded from the weighing sensors. Compared to the existing NOR BWIM systems, the proposed method does not require additional sensors for axle detection, which reduces the cost and facilitate the installation of BWIM systems. The effectiveness and accuracy of the proposed method are demonstrated through numerical simulations using three-dimensional vehicle-bridge coupled analysis.

Original languageEnglish (US)
Title of host publicationMaintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018
EditorsNigel Powers, Dan M. Frangopol, Riadh Al-Mahaidi, Colin Caprani
PublisherCRC Press/Balkema
Pages1746-1753
Number of pages8
ISBN (Print)9781138730458
StatePublished - 2018
Event9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018 - Melbourne, Australia
Duration: Jul 9 2018Jul 13 2018

Publication series

NameMaintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018

Conference

Conference9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018
Country/TerritoryAustralia
CityMelbourne
Period7/9/187/13/18

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality

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