An innovative condition assessment approach for concrete bridges under heavy truck loads

Urban transport infrastructure plays a key role in the Australian economy. Articulated trucks are now dominating domestic freight transports in Australia. Ageing bridge infrastructure as well as increasing demand from heavy trucks on Australian roads is leading to higher levels of structural deterioration of bridges. This paper presents an innovative condition assessment approach for concrete bridges using computational modelling in conjunction with measurements of non-contact sensors (IBIS-S). The model predictions were first validated by conducting field testing using IBIS-S. Several key parameters (i.e. elastomeric bearings degradation, compressive concrete strength degradation, and crack propagations) that govern structural performance deterioration of a prestressed concrete bridge were then investigated. The simulation results show that the deterioration of elastomeric bearings and shear crack propagation in bridge support zones are two of the most critical parameters governing the change in natural frequencies of the girder. The present study could potentially contribute to the development of an efficient bridge condition assessment methodology.

• Record URL:
  http://arrbknowledge.com
• Authors:
  • Zhang, L
  • Thompson, R G
  • Maizuar, M
• Conference:
  • ARRB Conference, 27th, 2016, Melbourne, Victoria, Australia
• Publication Date: 2016-11

Language

• English

Media Info

• Pagination: 10p
• Monograph Title: Linking people, places and opportunities: 27th ARRB Conference, 16-18 November 2016, Melbourne, Victoria

Subject/Index Terms

• TRT Terms: Axle loads; Bearing capacity; Bridge management systems; Bridges; Concrete; Concrete bridges; Cracking; Heavy vehicles; Sensors; Vehicles
• Uncontrolled Terms: Bridge-vehicle interaction
• Geographic Terms: Australia
• ATRI Terms: Bridge loads; Bridge management; Concrete bridge; Cracking; Heavy vehicle; Sensor; Vehicle bridge interaction
• ITRD Terms: 1236: Lorry
• Subject Areas: Bridges and other structures; Vehicles and Equipment; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01622992
• Record Type: Publication
• Source Agency: ARRB
• Files: ITRD, ATRI
• Created Date: Jan 24 2017 12:06PM