PERFORMANCE AND CONFORMANCE OF BRIDGE ELEMENTS

This paper examines the whole of life closed loop cycle that bridge elements operate with and the interaction between design, specification, manufacture, construction and asset management. The paper is directed towards two areas where problems have recently been experienced. These are steel fabrication with an emphasis on steel bridge barrier and structural bolts and nuts -grade 8.8. The paper also provides an assessment of the issues with quality assurance procedures used by some prestressing strand suppliers. Steel fabrication and grade 8.8 bolts and nuts are two areas where many contractors and superintendents do not have experience. Steel bridge barrier and high strength bolts are purchased on price alone. Many Contractors do not attempt to ensure that the products conform to specification. The paper demonstrates that some steel bridge barriers are grossly below the required specification. Some Grade 8.8 bolts and nuts have failed to achieve minimum loads specified in the Australian Standard. This has resulted in major performance and conformance issues for the in-service performance of bridges. (a) For the covering entry of this conference, please see ITRD abstract no. E208315.

  • Corporate Authors:

    QUEENSLAND, DEPARTMENT OF MAIN ROADS. TECHNICAL TRAINING SOLUTIONS

    GPO BOX 1412
    BRISBANE, QUEENSLAND  Australia  4001
  • Authors:
    • PRITCHARD, R
  • Publication Date: 2002

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00963742
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ITRD, ATRI
  • Created Date: Oct 3 2003 12:00AM