A RISK-BASED FRAMEWORK FOR ASSESSMENT AND PRIORITISATION OF BRIDGES

Bridges need to be managed effectively to ensure that they provide a satisfactory level of service. With increasing traffic loading on the road network it has not been possible to establish for all bridges, using conventional techniques, that the required loading can be carried safety. This paper proposes a risk-based framework for prioritising bridges in need of remedial work. The overall procedure includes: risk evaluation, ranking of bridges in terms of risk, design of remedial action for each bridge, and optimal allocation of resources for remedial work on different bridges. Risk is evaluated as a product of probability of failure and consequences of failure. Structural reliability techniques are used for evaluating the probability of a bridge failure. Consequences of failure are evaluated in terms of repair/re-building costs, road user costs, loss of life and injury, and environmental damage. For routine use by practising engineers, simplifed methods for evaluating risk have been proposed. (A) For the covering abstract see IRRD 882313.

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 571-9

Subject/Index Terms

Filing Info

  • Accession Number: 00729497
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-419-21210-8
  • Files: ITRD
  • Created Date: Dec 26 1996 12:00AM