Bridge truss, bridge span comprising such a truss, and method of constructing the span

摘要

The invention relates to the manufacture of a bridge.; One prefabricates bridge cross sections of essentially constituted by a three-dimensional lattice prestressed concrete bars with high mechanical strength and devoid of any slab, is put in place these in situ cross-sections and then laying on the whole cross sections of a span, the elements which constitute the panel of the span. The invention also relates to the elementary three-dimensional mesh consisting of bars (P1 to P30) high strength prestressed concrete assembled by connecting blocks (A to M) of cast concrete.; The invention applies in particular to the bridge construction by the technique of laying in cantilever by means of a guyed beam.