Solai curvi in latero-cemento, il caso di Bondeno (FE)

This article describes the reconstruction of a rural building characterized by clay block vault roof. Starting from a description about curved surfaces during the 1900s, this contribution focus on the construction of a concrete-clay block floor system in the North of Italy. Through the 20th century in Europe, architects and engineers studied and applied concreteclay block floor for curved surface to cover large areas without intermediate vertical elements, especially in the field of aeronautics industry and for the postwar reconstruction. The advantage of concrete-clay block floor system lie mainly in the great lightness and in the possibility of prefabrication. This technology had been designed to be applied in large-scale construction, in the same way as prestressed reinforced concrete or lamellar wood. In the Italian region of Emilia Romagna, land of art rule and innovation, this technology has been rediscovered and applied for the reconstruction of a rural building: a barn-house severely damaged after the 2012 earthquake. The building reconstruction, designed by the architect Alberto Ferraresi, has taken into account both the typological characteristics and the constructive ones; for his deferent approach and good realization this intervention could be considered an example of concrete-clay block floor curved modern application.