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Composite Bridges New Developments in Europe

  • P. Dubas
Part of the International Centre for Mechanical Sciences book series (CISM, volume 316)

Abstract

The present paper deals with new developments for composite bridges, as they have been opened recently to traffic. Firstly some indications are given for the materials used, i.e. weathering steel as an example for structural steel, and concrete e.g. lightweight concrete. The main part of the paper is devoted to the structural arrangement of composite bridges, both with deck at lower flange level and at upper flange level. For this second arrangement the relative advantages of structures with open framing or closed framing respectively (particularly for bridges curved in plane) are described and illustrated by existing composite bridges. Some aspects of the design procedures, especially concerning the web behaviour in the postcritical plate buckling range, are considered. The usual methods for the construction of composite bridges, more precisely for the concreting of the deck (deck slab cast in situ, precast deck slabs, stage-deck jacking along the steel girders) are mentioned. The last short section of the paper deals with the possible widening of existing composite bridges, due to increased traffic.

Keywords

Lightweight Concrete Open Framing Bottom Flange Steel Girder Transverse Stiffener 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Wien 1991

Authors and Affiliations

  • P. Dubas
    • 1
  1. 1.Swiss Federal Institute of TechnologyZurichSvizzera

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