DESIGN AND PERFORMANCE OF WEATHERING STEEL BRIDGES ON SCOTTISH TRUNK ROADS

Weathering steel bridges have now been in use in Scotland for over 20 years. The first trunk road weathering steel bridge was constructed in 1973 and there are now over 20 bridges located throughout the Scottish trunk road network. Some early bridges were constructed from Corten steel but most have used BS 4360 WR 50C steel. The importance of selecting suitable environments has been emphasized, and detail design has been improved to preserve the long-term durability and appearance of the bridges. Direct plate thickness measurements have been taken and very little corrosion of the steel has been apparent to date. Unsuitable use of one bridge has necessitated the remedial painting of the corroded steel. The Scottish experience is compared with other weathering steel construction principally in the United States of America. The predominantly rural environment in Scotland has proved suitable for weathering steel bridges. It is expected that, with an awareness of the limitations of the material and with good design practice, weathering steel will continue to be specified for future use in Scotland. (Author/TRRL)

Media Info

  • Features: References;
  • Pagination: p. 447-462
  • Serial:
    • Volume: 90

Subject/Index Terms

Filing Info

  • Accession Number: 00619918
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS, ATRI
  • Created Date: Mar 31 1992 12:00AM