Innovative use of bridge-WIM as an efficient tool for optimized safety assessment of bridges

Bridge management requires accurate information on the status of the bridge in order to achieve optimal balancing of maintenance costs, potential risks and overall bridge performance. One of the key performance indicators is structural safety of a bridge, which requires in-depth knowledge of traffic loads, as well as bridge resistance to that load. Assessment is primarily needed for ageing bridges that are deteriorated and close to the end of their life cycle. Safety of such bridges is often difficult to prove when using only the traditional analytical methods. To avoid unnecessary remedial actions, such as strengthening or even replacement of a bridge, it is beneficial to use structural and material testing. This paper discusses the latest developments in bridge weigh-in-motion (B-WIM) technology, which can efficiently measure parameters that are critical for optimal bridge assessment: axle loads and spacings of all vehicles, influence lines, girder distribution factors (GDF) and dynamic amplification factor (DAF). Knowing the true values of these performance indicators significantly reduces uncertainties associated with the load effects that are used in safety assessment. In addition, having measured rather than estimated data allows to reduce the safety factors used in the analyses. This allows for a more optimal maintenance of infrastructure and a more rational use of available financial resources.

• Record URL:
  https://arrbknowledge.com
• Authors:
  • Žnidaric, A
  • Kulauzovic, B
• Conference:
  • ARRB International Conference, 28th, 2018, Brisbane, Queensland, Australia
• Publication Date: 2018-5

Language

• English

Media Info

• Pagination: 13p
• Monograph Title: Next generation connectivity: 28th ARRB International Conference, Brisbane, 29 April-2 May, 2018

Subject/Index Terms

• TRT Terms: Accuracy; Bridge management systems; Bridges; Condition surveys; Performance measurement; Weigh in motion
• ATRI Terms: Accuracy; Bridge inspection; Bridge inventory; Bridge maintenance; Load damage relationship; Performance indicators; Weigh in motion
• Subject Areas: Bridges and other structures;

Filing Info

• Accession Number: 01678418
• Record Type: Publication
• Source Agency: ARRB
• Files: ITRD, ATRI
• Created Date: Aug 23 2018 2:31PM