DIAGNOSTIC AND ASSESSMENT PROCEDURES FOR THE MAINTENANCE AND REPAIR OF IN-SERVICE BRIDGES

This paper reports on the appearance of significant cracking near the supports of older reinforced concrete T-beam bridges in Tasmania. The cracking was first highlighted in 1991 and has subsequently been found to occur in a number of similar bridges. In view of the limited funding available for road works and the potentially high repair or replacement costs, a value management study was undertaken in order to develop a cost-effective strategy for managing the problem. As part of the study, an integrated diagnostic and assessment procedure was developed which can be used to investigate potential defects in bridges and other structural systems, and is described in the paper. The study highlighted the range of crack patterns occurring, with many being consistent with normal behaviour of reinforced concrete in regions of high flexure and shear. The process developed during the study has been used to develop a tentative explanation of the cracking. Further work is being undertaken to confirm the diagnosis. (a) For the covering abstract of this conference, please see IRRD abstract no 861149.

• Record URL:
  • http://arrbknowledge.com
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0855884436
• Corporate Authors:

  AUSTROADS

  24-28 Campbell Street, P.O. Box K659, Roden Cutler House
  Haymarket, New South Wales  Australia  2000
• Authors:
  • HUA, W-G
  • McGee, R W
  • WARNER, R F
• Conference:
  • BRIDGES - ESSENTIAL TO OUR ECONOMY; PROCEEDINGS OF THE AUSTROADS BRIDGES CONFERENCE, FEBRUARY 16-18, 1994, MELBOURNE, AUSTRALIA
• Publication Date: 1994

Language

• English

Media Info

• Features: References;
• Pagination: p. 26.1-8
• Serial:
  • Volume: 1
  • Issue Number: AP 28/94

Subject/Index Terms

• TRT Terms: Bridges; Conferences; Cracking; Decision making; Inspection; Maintenance; Management; Reinforced concrete
• ITRD Terms: 155: Administration; 3455: Bridge; 8525: Conference; 5211: Cracking; 2248: Decision process; 3847: Maintenance; 4794: Reinforced concrete; 9101: Surveillance
• Subject Areas: Administration and Management; Bridges and other structures; Maintenance and Preservation;

Filing Info

• Accession Number: 00664880
• Record Type: Publication
• Source Agency: ARRB
• ISBN: 0-85588-443-6
• Files: ITRD, ATRI
• Created Date: Sep 9 1994 12:00AM