Structural Systems for Multispan Cable Suspended Bridges

by Niels J. Gimsing, Technical Univ of Denmark, Lyngby, Denmark,



Document Type: Proceeding Paper

Part of: Bridges and Transmission Line Structures

Abstract: Multispan cable suspended bridges, i. e. , cable-stayed or suspension bridges with a large number of consecutive main spans of equal size, must be carefully designed to become economical and sufficiently stiff. This fact is illustrated by evaluating and comparing a number of different structural systems for these types of bridges. For bridges with a large number of consecutive main spans both cable-stayed, suspension and mixed systems might be applied. It is most important to choose structural systems that assure an adequate stiffness both in the final stage and during erection. Multispan cable suspended bridges with long spans constitute a favourable solution for crossing busy waterways as they allow navigation to take place over a large width instead of forcing it to take place through a single main span.

Subject Headings: Cable stayed bridges | Cables | Suspension bridges | Structural systems | Girder bridges | Span bridges | Bridge design | Stiffening

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