Civil Engineering Reference
In-Depth Information
resolves the various problems. One of these is how to anchor the stays in the tower.
The force must be transferred from the forward to the back stays. The conceptually
simplest method of achieving this is for the stays to pass over saddles in the tower,
anchoring in the deck at each end. In fact, this is only achievable on bridges with few
cables. On a typical 350 m span highway bridge, there are likely to be at least 20 cables
on each half span, and the practical problems of organising superimposed saddles are
virtually insurmountable. Furthermore the fatigue performance of cables bent over the
saddles and subjected to radial compression may be critical, and the cables would be
more troublesome to replace.
Figure 18.15
Anchorage of stays on towers
