Abstract: An installation for manufacturing reinforced concrete elements, in particular prestressed concrete slabs or pre-slabs, by means of a bench including a manufacturing area of predetermined shape, together with a molding apparatus. Memory means (46) are provided for storing building data relating to the elements to be manufactured and concerning at least the geometry thereof, together with tracing means (48) for marking on the manufacturing area (16) the locations of at least some of the walls placed thereon and constituting portions of the molding apparatus.

Abstract: A jointing device for long-limbed framework elements in reinforced concrete and framework comprising framework elements jointed by such devices.Means are provided for housing with a tightening fit the ends of the sections to be assembled. In a realization said means comprise a body from which depend at least two sleeves provided for housing with a tightening fit a portion of the sections to be assembled. The sleeves are preferably removably fixed to the body.