Without a chassis, trailers can be lighter, lower and cheaper to manufacture. Several methods of obtaining structural rigidity are discussed. The design of the Tidd strongbox, which accounts for 32 per cent of the UK market, is compared with that of several other types of 12.2 M tandem-axle chassisless semi-trailer vans. One-piece laminate-walls are used incorporating cruciform bracing of the under structure, a deep-root rear frame and close-pitched cross-bearers. Factors affecting the design and construction of the trailer are examined and the relative merits of particular types are discussed. Problems associated with the mounting of running gear and landing legs on longitudinal subframes are discussed. Often the greatest load occurs in the centre span, which is not supported by a sub-frame. Future developments are likely to be on the floor structure and mountings for the running gear. It is possible that eventually the floor could be made from one laminated section. /TRRL/

  • Availability:
  • Corporate Authors:

    Embankment Press Limited

    Building 59, GEC Estate, East Lane
    Wembley, Middlesex HA9 7TQ,   England 
  • Authors:
    • Dalzell, J
  • Publication Date: 1977-11

Media Info

  • Features: Figures; Photos; Tables;
  • Pagination: p. 13-16
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00178589
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Sep 27 1981 12:00AM