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Vol. 51 (2010) No. 2 June n. 164


Concept of a Beam Prestressed by Bending: Application to a Footbridge in Composite Materials

< Table of Contents for Vol. 51 (2010) No. 2 June n. 164
  • Journal Name: Journal of the International Association for Shell and Spatial Structures (J. IASS)
  • ISSN: (Electronic Version) 1996-9015
  • ISSN: (Print Version) 1028-365X
  • Issue: Vol. 51 (2010) No. 2 June n. 164
  • Pages: 99-106
  • Title: Concept of a Beam Prestressed by Bending: Application to a Footbridge in Composite Materials
  • Author(s): O. Baverel, J. - F. Caron, M. Beaugelin, J. Bonthoux and S. Martin
  • Keywords: Footbridge, prestress, cable, composite materials, curved beam
Abstract
This paper proposes the concept of a prestressed beam supported by a central cable. Due to the elastic energy stored in the beam, this cable is in tension and is able to act as a column. As long as the cable is in tension, it cannot buckle. Calculations show that composite materials are well suited for this concept. An example of a footbridge with three supports built with glass fiber reinforced polymer is shown and explained. Finally the construction of a full scale model is shown.

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