ABSTRACT
ABSTRACT: The new High Speed railway linking Bologna to Milano crosses the Po with an 11Km long viaduct, the most important of the new line. The distance between the main embankments is 1.2Km, the ordinary riverbed being 350m wide. Three types of structure are present in this part: (i) the cable stayed bridge, whose central span is
192m long (ii) 12 simply supported 45mdecks and (iii) two continuous p.c. box girders overpassing the main embankments. The cable-stayed deck is a p.c. continuous box girder; the towers are 60m high and have
foundations supported by 28 piles, 2m diameter and 65m long, each. Special studies for the vibrations and the track-structure interactions were necessary, the oper-
ating and design speed being respectively 300 and 350 km/h. Furthermore many tests have been carried out to validate the numerical models. The construction of the bridge started at 2002 and lasted about 4 years.
