WIT Press


Optimum Size, Position And Number Of Cables In Cable-stayed Bridges

Price

Free (open access)

Paper DOI

10.2495/HPSM160031

Volume

166

Pages

12

Page Range

29 - 40

Published

2017

Size

795 kb

Author(s)

C. Cid, A. Baldomir, S. Hernández, M. Cid Montoya

Abstract

A methodology to obtain the minimum weight of cables in cable-stayed bridges has been developed. The number of cables, anchor positions on the deck, the cross-sectional areas and post-tensioning cable forces have been considered as design variables simultaneously in the optimization process. Two different strategies are proposed using both genetic and gradient-based optimization algorithms. Finally, the Rande Bridge (Vigo, Spain) has been chosen as the application example of both approaches.

Keywords

cable-stayed bridges, optimization, cable existence, cable anchor position, prestressing forces, gradient-based algorithm, genetic algorithms