| Author(s): |
Fritz Leonhardt
Wilhelm Zellner |
|---|---|
| Medium: | journal article |
| Language(s): | English |
| Published in: | IABSE Surveys, February 1980, v. 4 |
| Page(s): | 21-48 |
| DOI: | 10.5169/seals-45735 |
| Abstract: | The optimisationof cable-stayed bridges leads to a new system, different from beam bridges. Many stay cäbles, closely spaced reduce the required depth and bending stiffness of longitudinal deck girders to a minimum, governed by the buckling safety and the allowed curvature of the deflection line. Pure tension and compression prevails, bending and shear becomes secondary. This leads to simple cross sections, simple cable anchorages, easy construction and superior dynamic behaviour, if one chooses high cable stresses. The new system allows main spans up to about 700 m for concrete and up to about 1,700 m for steel with considerable savings over Suspension bridges. All relevant aspects are treated. |
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