THRUST AND GUIDE DEVICES FOR LAUNCHED BRIDGES

Incremental launching is a competitive construction method for medium-span (40-65 m) pre-stressed concrete bridges. It does not constrain the length and width of the superstructure, and bridges longer than 1 km and wider than 20 m have been successfully launched. This method is hardly constrained by the bridge layout, as varying plan curvatures can be solved by shifting launch supports and varying vertical curvatures by shimming the bottom edges of the superstructure. The launch of a prestressed concrete bridge involves enormous forces and requires the guide and control of big volumes. The devices used for this purpose are described along with their design criteria and optimum fields of utilization, and several suggestions derived from many years of launching practice are given.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/32947845
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • ROSIGNOLI, M
• Publication Date: 2000-2

Language

• English

Media Info

• Features: Figures; Photos; References;
• Pagination: p. 75-83
• Serial:
  • Journal of Bridge Engineering
  • Volume: 5
  • Issue Number: 1
  • Publisher: American Society of Civil Engineers
  • ISSN: 1084-0702
  • Serial URL: http://ojps.aip.org/beo

Subject/Index Terms

• TRT Terms: Bridges; Construction of specific facilities; Design of specific facilities; Facilities and structures by use; Prestressed concrete bridges
• Uncontrolled Terms: Launched bridges; Launching (Construction); Thrust and guide devices
• Subject Areas: Bridges and other structures; Construction; Design; Highways; Terminals and Facilities; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00784173
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 8 2000 12:00AM