FIELD: construction.
SUBSTANCE: span is made of boxy boarded-block-dowel-nail units installed onto supports according to a transverse slope diagram, combined with a transverse reinforced concrete slab, laid directly onto the insulating surface of units and fixed by bolts to belt bars. The reinforced concrete slab is made of two mirror-symmetrical assembled units combined to each other along the axis of the bridge with a longitudinal seam from monolithic reinforced concrete. In transverse direction the units have bevelled edges, which form a deformation joint, sealed by means of "mostoplast", on top of which there is asphalt concrete coating. In the span each boxy unit operates for bending from a part of temporary load in accordance with laws of elastic distribution, depending on stiffness of the transverse structure formed by a system of non-split transverse reinforced concrete slabs elastically joined to boxy units.
EFFECT: increased reliability.
3 dwg
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