The first of 18 spans of the segmental concrete tyneside metro viaduct at byker has been erected using ciba epoxy resin. The setting time for accurately precast units stressed together with resin on their mating faces is far less than is needed for mortar joints. The high speed of construction offered by this method leads to its adoption despite the need for high accuracy in casting. The author discusses other technical difficulties encountered. Erection and temporary propping of the bridge was a problem; A computer program previously developed for segmented bridges has been used to calculate stress, deformation loads and prop reactions. Prop reactions are checked for each box. Segments are glued together and held by prestressed macalloy bars against previously erected work. Before mating, surfaces are given a light grit blast while still on the ground. Erection of boxes over the steep sided valley will be by balanced cantilever because high props would be uneconomic. /TRRL/


  • English

Media Info

  • Features: Photos;
  • Pagination: p. 30-33
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00163852
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Analytic
  • Files: ITRD, TRIS
  • Created Date: Dec 27 1977 12:00AM