Description
This variable section bridge, located to the north of Italy, has three spans and was poured in situ.
Project details:
- Bridge length: 180 m
- Bridge width: 11.5 m
- Deck thickness: between 1.5 m and 8 m
- Transverse inclination: 3.5 %
- Radius: 140 m
- Pier height: 5 m
- Distance between piers: 100 m
ULMA solution
After pier construction, the bridge was completed in three stages.
The 70 m long stretch between the abutment and the pier was built with horizontal beam-based formwork and full shoring.
After concrete hardening and falsework removal, the same material was used in a symmetrical manner between the abutment and the pier on the other side of the bridge. A high capacity shoring tower on a temporary footing supported the central part of the bridge (40 m). The distance between bearings was spanned with high load capacity trusses carrying the formwork.
The specific curvature and the inclined geometry were formed with spindles adjustable into any direction on the shoring. This ensured a perfect adjustment without using wood templates, which brought high cost savings.
