A GOOD REASON FOR USING RESIN

Construction of the Ely Viaduct at Cardiff is two months ahead of schedule at present. A glued segmental building technique is claimed to be responsible for much of this speedy work. A glued joint between segments, using an expoxy resin has almost no thickness and allows immediate prestressing so that adjacent segments can be rapidly lowered into place and fixed. The resin has no structural purpose but acts as a lubricant aiding the positioning of the segments; it also distributes the stress across the joints and works as a waterproof seal. Although the reduced cost of the speedy erection was an important factor in the choice of the method, segmental boxes were much easier to shape into a horizontal curve of 620M radius. However, the method of construction limited the scope for making vertical curves, and the design is not aesthetically pleasing. The final design resulted in a twin box beam bridge with a 7M central span and two 47M side spans. Experience with the technique, gained on the M180 trent bridge, has resulted in the use of fewer shear keys on the segment faces and 13 strand tendons instead of 19 strands, permitting the use of lighter and faster jacks for permanent stressing. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00396303
• Corporate Authors:

  IPC Building and Contract Journals Limited

  Surrey House, 1 Throwley Way
  Sutton, Surrey SM1 4QQ,   England 
• Authors:
  • BOND, R
• Publication Date: 1982-4-1

Media Info

• Features: Photos;
• Pagination: p. 14-15
• Serial:
  • SURVEYOR
  • Volume: 159
  • Issue Number: 4684
  • Publisher: Hemming Group, Limited
  • ISSN: 0039-6303

Subject/Index Terms

• TRT Terms: Box beams; Box girders; Bridge design; Bridges; Construction management; Costs; Curved bridges; Deformation curve; Epoxy resins; Impervious materials; Lubricants; Physical distribution; Prestressing; Resins; Sealing compounds; Segmental construction; Stresses; Structural design; Synthetic resins; Viaducts; Water; Waterproofing materials
• Uncontrolled Terms: Joint (Fitting); Prestressing strands; Quick
• Geographic Terms: United Kingdom
• Old TRIS Terms: Impermeability
• ITRD Terms: 3474: Box girder; 3455: Bridge; 3666: Construction method; 224: Cost; 3876: Coupling; 3438: Curved bridge; 9016: Distribution (gen); 7468: Epoxy resin; 5921: Permeability; 9064: Quick; 5575: Stress (in material); 7460: Synthetic resin; 8119: United Kingdom; 4355: Water
• Subject Areas: Bridges and other structures; Construction; Finance; Freight Transportation; Geotechnology; Highways; Materials; I53: Construction of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00362287
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Nov 30 1982 12:00AM