Balanced cantilever bridge construction with cast-in-place segments
Construcción de puentes por voladizos sucesivos hormigonados in situ
- Date
- 1950-1951 · confidence high
- Place
- Balduinstein, Rhineland-Palatinate, Germany
- Credited to
- Ulrich Finsterwalder (Dyckerhoff & Widmann)
- Field
- Tools
What it is
Bridges are built by advancing from the piers on both sides with segments cast in form travellers, without falsework from the ground. Symmetric balance allows deep rivers and valleys to be crossed with long spans.
The Lahn bridge at Balduinstein (1950-1951) was the first to use it; precast segments and prestressing spread from France with Jean Muller (Choisy-le-Roi, 1962).
What it led to
- prestressed-concrete bridges with spans over 100 m
- form travellers and precast segments
- viaducts over major rivers without interrupting navigation