LYNE CABLE-STAYED BRIDGE: CHEAP BUT NOT EASY

This bridge is being constructed to carry the railway line between Chertsey and Virginia Water in Surrey over the proposed M25. With two equal spans of 54.9 M and a width of 11.6 M, the bridge is relatively small, but site conditions are such that the bridge is heavily skewed. The angle between the centre-line of the bridge and that of the motorway is something less than 28 degrees. Designed for economy rather than ease of construction, the concrete structure is described as Britain's first cable-stayed rail bridge. Lyne bridge's deck is 650 mm deep, and the use of intermediate support from cable-stays was considered to be both economically and structurally desirable. The stays have a double function. At working load they provide about 40 percent of the bridge's prestress and, working as diagonals, they increase the structure's stiffness by about 10 percent. The design and construction of the bridge is briefly discussed and illustrated.

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 34-35
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00184674
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Dec 29 1978 12:00AM