Cavallera BRIDGE - Castegnato (BS)
Overpass A4 highway to allow interconnection between A4 and A35.
The overpass consists of a single span in simple support with a total length of 61 m, formed by a thin supporting arch structure and a stiffening beam.
The work accommodates an F2-type road, thus presenting a useful paved width of 8.50 m and two sidewalks of 2.3 m, for a total width of 13.10 m. H4 type safety barriers have been installed on the bridge.
All the metal elements are designed to be prefabricated in the workshop with segments of maximum length 13.00 m. Depending on their length, the segments are transportable without specific charges.
For the metal structure of the overpass the types of steel S355J2 + N and S355K2 + N (formerly Fe 510 D, former Fe 510 DD) were used for the welded elements, while S355J0 (formerly Fe 510 C) for those not welded. Only welded type joints have been provided for the deck.
The structure of the deck is a combined beam system with thin upper reinforcement arch and thrust bearing (closed system), also known as the Langer girder.
YEAR OF REALIZATION