Viaduct for the S.S. 1 “Aurelia” in Valle Armea – Sanremo (IM) – Italy

Detailed structural design of the viaduct decks

 

Client: Vallemme S.r.l. – Italstrade S.p.A.

Structural works value: 3.615.000,00 €

Design period: 1991÷1993

 

The viaduct consists of 28 spans of bridge decks.

The decks are made up of a variable number between 7 and 10 precast prestressed reinforced concrete box beams of a height of 1.25 m and is completed by a 25 cm thick upper slab and cross beams at both ends built of reinforced concrete cast in situ.

The spans between the supports vary between 26 and 28 m, while the average width of the decks is about 25 m.

The beams, characterized by a changeless cross section, have been the subject of a specific study, concerning the effects of the diffusion of the prestressing.