Studies have shown that, particularly in earthquake zones, continuous bridges can have substantial advantages over those composed of simply supported spans. In New Zealand, many bridges of single spans less than 12 metres are constructed using precast, pretensioned hollow core units. The Ministry of Works and Development have formulated standard designs for these beams and they are available from a number of precast concrete manufacturers throughout the country. In this research project, methods of providing structural continuity to these standard bridges are investigated and the advantages of so doing evaluated. The results of a full scale load test of the preferred method of providing continuity are reported. Guide-lines for final design are suggested. It is concluded that sound and economical designs can be developed using the preferred detail for achieving continuity. /Author/

  • Corporate Authors:

    National Roads Board, New Zealand

    Ministry of Works and Development, P.O. Box 12-041
    Wellington North,   New Zealand 
  • Authors:
    • CORMACK, L G
    • McLean, C G
  • Publication Date: 1976-7

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 29 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00170881
  • Record Type: Publication
  • Source Agency: Traffic Laws Commentary
  • Report/Paper Numbers: RRU Bulletin No. 34
  • Files: ITRD, TRIS
  • Created Date: Mar 29 1978 12:00AM