FORMING MACHINES PRECAST MILES OF GUIDEWAY GIRDERS

Rapid, economical production of more than a thousand prestressed and post-tensioned box girders is crucial to the building of a new public transportation system in Vancouver. Since much of the system is elevated and in urban areas, precasting was chosen as a way to speed erection, lessen congestion on the job, cut costs and control quality. Tight tolerances were established, and success of the precasting operation depends in large measure on the specialized forming system described in this article. Eight of the first 13 miles of the system will ride on elevated box girders over lines having frequent twists and curves. This phase requires 594 curved and banked beams, 394 straight (tangent) units and 48 turnout units for track crossover, all to be supplied within a 22-month period.

  • Availability:
  • Corporate Authors:

    Concrete Construction Publications, Incorporated

    P.O. Box 321
    Addison, IL  United States  60101
  • Publication Date: 1984-4

Media Info

  • Pagination: p. 405-410
  • Serial:
    • CONCRETE CONSTRUCTION
    • Volume: 29
    • Issue Number: 4
    • Publisher: CEMENT & CONCRETE ASSOCIATION OF NEW ZEALAND
    • ISSN: 0549-0219

Subject/Index Terms

Filing Info

  • Accession Number: 00387856
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Oct 30 1984 12:00AM