CASTING, ERECTION AND ASSEMBLY OF PRESTRESSED STRUCTURES

This article gives a review of the casting, handling, erection and assembly of precast elements used in various structures and makes special reference to their use in india. The authors first compare the economics of precasting and in-situ casting, showing that it has advantages with respect to ease of quality control, staging and formwork, placement of the concrete, placement of reinforcement, use of equipment and ancillary services, programming and finances. A brief account is given of the various systems used including guyed derricks, derrick trolleys, guy derrick cranes, derrick cranes, tower cranes, and portal gantries and frames. Specialized equipment such as launching girders and trusses is included. This is followed by an account of the casting yard used, including notes on its location, size and sequence of operations. The movement of the precast elements is next dealt with both in the casting yard, to the erection equipment and the final placement in position. The article concludes with an account on the movement of the erection equipment. An appendix lists some of the major precast prestressed structures constructed by m/s gammon india ltd, with notes on the year of construction, their type, dimensions and weight, and the handling equipment used. /TRRL/

  • Availability:
  • Corporate Authors:

    Indian Roads Congress

    Jamnagar House, Shahjahan Road
    New Delhi,   India  110 011
  • Authors:
    • Apte, P M
    • Kumar, S
  • Publication Date: 1974-10

Media Info

  • Features: Figures;
  • Pagination: p. 5-27
  • Serial:
    • Indian Highways
    • Volume: 2
    • Issue Number: 10
    • Publisher: Indian Roads Congress
    • ISSN: 0376-7256

Subject/Index Terms

Filing Info

  • Accession Number: 00125652
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Apr 7 1976 12:00AM