ON ACTIVE SERVICE

This article describes the remarkable Close Support and General Support bridging systems, recently developed by the British Army's Royal Engineers. The bridges combine aerospace materials manufacturing technology with rugged agricultural site assembly methods. Although high costs are likely to limit the use of the bridge designs in civil engineering, the systems could be attractive for some applications, because of their ability to launch a major loadbearing structure across a motorway or railway within 20 minutes. When it goes into service in 1995, the BR90 bridge system will replace the Army's hand-assembled Medium Girder Bridge, derived from World War Two's Bailey Bridge. Modular panels of eight types can be assembled in 300 possible combinations, to produce bridges ranging from 13.5m single spans to a 62m floating double span with an intermediate pontoon support. Two Tank Bridge Transporters are needed to carry a General Support Bridge, which is launched by Able, a hybrid crane and launch rail device. To build the bridge, Able extends a cantilevered launch rail, assembled from box girder sections, and places it on the far side of the gap to be bridged. Bridge ramps and intermediate panels are then rapidly pinned together. No foundations are required.

  • Availability:
  • Corporate Authors:

    Thomas Telford Limited

    London,   United Kingdom 
  • Authors:
    • WINNEY, M
  • Publication Date: 1994-3-10

Language

  • English

Media Info

  • Pagination: p. 20-1
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00668071
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Nov 2 1994 12:00AM