Improved accuracy and robustness of bridge weigh-in-motion systems

This paper deals with accuracy and long-term stability of bridge weigh-in-motion (B-WIM) systems. Research focused on four improvements, developed within two research projects financed by the European Commission. These improvements have increased accuracy of the results for four classes according to the European WIM specifications. The novel axle detection method recommends alternative locations to acquire strain responses under the moving vehicles, which provide reliable axle information without the need to install axle detectors in the carriageway. The new algorithm for calculating experimental influence lines combines the individual influence lines, generated from the responses of vehicles from the traffic flow, to obtain a robust solution that does not depend on the type of the vehicle. The third development adjusts the sensor factors to account for measurement errors on concrete structures, especially those resulted from hidden cracks. Finally, the effects of varying temperature and vehicle velocities on the WIM results were studied and their influences mitigated, to increase long-term stability of B-WIM results. All improvements were validated using long-term B-WIM measurements collected on four different bridges.

• Record URL:
  https://doi.org/10.1080/15732479.2017.1406958
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/15732479
• Supplemental Notes:
  • Abstract reprinted with permission of Taylor & Francis.
• Authors:
  • Žnidarič, Aleš
  • Kalin, Jan
  • Kreslin, Maja
• Publication Date: 2018-4

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References;
• Pagination: pp 412-424
• Serial:
  • Structure and Infrastructure Engineering
  • Volume: 14
  • Issue Number: 4
  • Publisher: Taylor & Francis
  • ISSN: 1573-2479
  • EISSN: 1744-8980
  • Serial URL: http://www.tandfonline.com/loi/nsie20

Subject/Index Terms

• TRT Terms: Accuracy; Algorithms; Axles; Cracking; Highway bridges; Improvements; Sensors; Temperature; Validation; Velocity; Weigh in motion
• Geographic Terms: Europe
• Subject Areas: Bridges and other structures; Data and Information Technology; Highways;

Filing Info

• Accession Number: 01667485
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 27 2018 12:21PM