TAMAR BRIDGE: MAINTENANCE, ASSESSMENT, STRENGTHENING

This paper describes the Tamar bridge, a high level road bridge linking Devon and Cornwall, from its construction in 1961 to the present day when strengthening proposals are being developed for completion in 1999. With a total length of 642.4m, the towers are reinforced concrete and the deck steel composite. A full deck refurbishment was carried out in 1988 when deck joints were reduced from 60 to 20. As part of the EU directive that 40 tonne vehicles were to be allowed, the bridge was assessed in 1994. Testing of a) materials, b) cable and hanger loads, c) tower verticality and d) cables and cable clamps is outlined. Technical standards were checked and global analyses undertaken using a 3-D non linear computer programme. A number of areas requiring strengthening were identified. For the covering abstract see IRRD 882313.

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 858-66

Subject/Index Terms

Filing Info

  • Accession Number: 00729520
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-419-21210-8
  • Files: ITRD
  • Created Date: Dec 26 1996 12:00AM