Structural Engineering and Mechanics

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Preliminary design of cable-stayed bridges for vertical static loads

  • Michaltsos, G.T. (National Technical University of Athens) ;
  • Ermopoulos, J.C. (National Technical University of Athens) ;
  • Konstantakopoulos, T.G. (National Technical University of Athens)
  • Received : 2001.05.14
  • Accepted : 2003.04.16
  • Published : 2003.07.25
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Abstract

This paper proposes a new method for the preliminary design of cable-stayed bridges that belong to the radial system subjected to static loads (self weight, traffic loads, concentrated loads, etc). The method is based on the determination of the each time existing relation between the tension forces of the cables and the corresponding bridge-deck deformations, and can be extended on any type of cable layout (fan, parallel, or mixed system). Galerkin's method is used for the final determination of the cable stresses and the bridge deformation. The determination of the equation, which gives the forces of the cables in relation to the deck's configurations, permits us to convert the problem to the solving of a continuous beam without cables.

Keywords

References

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