The Use of Bridge WIM for Heavy Traffic Surveillance in Slovenia

An overloaded truck causes excessive fatigue of the materials in the pavement structure and thereby increases maintenance costs and shortens the pavement service life. The bridge WIM system uses a bridge supporting structure as a scale. It is mounted under an existing bridge or culvert and weighs every axle of the passing truck in a free traffic flow. The results of more than 10 years of bridge WIM measurements in Slovenia and worldwide are used in order to calculate the equivalence factors of individual trucks and thus assess their influence to the pavement deterioration, to calculate realistic traffic loads to assure proper pavement design, for bridge assessment and many others. The true load effects on bridges are much lower than in theory, because bridges behave in less conservative ways than assumed for the design purposes. If these effects are not measured and employed in the analysis, the selected rehabilitation measures will likely be excessive and too costly. Bridge WIM directly calculates influence lines and load distribution factors needed to calibrate the structural models for bridge safety assessment. Presently finished EU project BridgeMon offered additional features for bridge WIM analyses, including moving force identification, new structural and environmental factors and improved accuracy of output data.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; Photos; References; Tables;
  • Pagination: 16p
  • Monograph Title: Proceedings of the 25th World Road Congress - Seoul 2015: Roads and Mobility - Creating New Value from Transport

Subject/Index Terms

Filing Info

  • Accession Number: 01676781
  • Record Type: Publication
  • ISBN: 9782840604235
  • Report/Paper Numbers: 0532
  • Files: TRIS
  • Created Date: Jul 5 2018 7:00PM