FLAT ARCH ACTION

Arch bridges are normally considered to be quite distinct and different structures from other forms, such as concrete slab or beam and slab bridges. Research suggests, however, that many bridges which are not normally considered as "arches" can work by arching action, otherwise known as "compressive membrane action" or "dome effect". This research has concentrated mainly on the top slabs of beam and slab type decks where the restraint comes from the surrounding bridge structure. However, Das has suggested that the action could be significant to the global behaviour of simply supported bridges, where the restraint comes from external sources, that is from the abutments and the soil behind them. In this paper, such behaviour is investigated analytically and its significance to the load carrying capacity of real bridges and its use in their assessment is considered. (A)

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 407-15

Subject/Index Terms

Filing Info

  • Accession Number: 00719992
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-7277-2048-1
  • Files: ITRD
  • Created Date: Apr 26 1996 12:00AM