Author(s)

R. Roccati, S. Petruzzi

Abstract

Static and dynamic behaviour of a historical stone bridge investigated by means of a 3D numerical model R. Roccati* & S. Petruzzi^ * Department of Structural Engineering, Politecnico di Torino ''Civil Engineer', Province of Turin, Italy Abstract The investigation method developed in order to validate the bearing capacity of a three-arcade 18* century stone bridge for the passage of 2^ class loads lends itself to a generalised use for a type of structure that is very common over the entire Italian territory. The exact 3D geometry of the arcades of the bridge was determined in situ, by taking into due account irregularities due to the construction process. The actual consistence of the masonry of the piers, arches, tympanums and buttresses was determined on samples and cores. The dynamic behaviour of the structure was evaluated in both environmental and random conditions (under heightened traffic levels) with the aid of accelerometers, spectrum analysers and f.f.t

Keywords