Changing social needs, upgrading of design standards, increased safety requirements and deterioration result in existing structures that need to be refurbished or demolished. Many existing structures are part of the architectural heritage and demolition is not a viable option. Even for newer structures, rehabilitation is a better use of resources than replacement. Bridges represent a major proportion of engineering structures. They are a significant factor in the infrastructure and their maintenance has implications on the economic life of the UK through disruption and traffic delays. Chloride induced deterioration of reinforced and pre-stressed concrete bridges, continual upgrading of service loads and the increase in the volume of traffic means that thousands of bridges need repair or reconstruction. The paper will discuss the use of advanced composite materials such as thin carbon fibre laminates, bonded to existing structures, to strengthen and rehabilitate them to extend their useful life. The technique is well developed for the flexural strengthening of reinforced concrete structures with steel plates but this has limited application, lacks durability and is difficult to do. The paper will demonstrate how materials, new to the construction industry, will considerably widen the scope of possible strengthening to bridges and to structures built in other materials. (A) For the covering abstract see IRRD 882313.


  • English

Media Info

  • Features: References;
  • Pagination: p. 732-42

Subject/Index Terms

Filing Info

  • Accession Number: 00729511
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-419-21210-8
  • Files: ITRD
  • Created Date: Dec 26 1996 12:00AM