BRIDGE Russian patent published in 2013 - IPC E01D1/00 

FIELD: construction.

SUBSTANCE: bridge comprises abutments, intermediate supports and a metal span, comprising an orthotropic board of the traffic area, supported with longitudinal main beams of permanent height and longitudinal main beams with a lower belt of curvilinear contour, combined to each other by transverse links and support membranes. The novelty is the fact that longitudinal main beams with curvilinear contour of the lower belt are equipped at the inner side of the bridge by vertical T-shaped stiffening ribs, having vertical support beams at the ends. Upper ends of vertical T-shaped stiffening ribs and vertical support beams are fixed to the orthotropic board of the traffic area, and the lower belt of vertical support beams is at the level of the lower belt of main beams of permanent height. On caps of abutments and intermediate supports there are support pedestals installed, on which via support beams of vertical T-shaped stiffening ribs and longitudinal main beams of permanent height the span is supported. In vertical T-shaped stiffening ribs at height of support pedestals there are grooves made, which follow the contour of external sides of support pedestals. Axes of support beams are arranged coaxially to axes of support pedestals. Longitudinal beams of permanent height may be arranged as boxed, inner walls of which are arranged coaxially to support beams and support pedestals.

EFFECT: assembly improvement, higher reliability.

3 cl, 3 dwg