STEEL AND CONCRETE BRIDGE SPAN Russian patent published in 2017 - IPC E01D12/00 

FIELD: construction.

SUBSTANCE: invention relates to bridge erection and can be used in structures of steel-concrete bridge spans during their construction, reconstruction and overhaul of bridges associated with broadening of their clear headway. The steel and concrete bridge span comprises the combined cross-linked metal main beams, a reinforced roadway concrete slab mounted on main beams, reinforced with top and bottom working reinforcement, oriented transverse to the longitudinal axis of the steel and concrete bridge span, and integrated with them by stops in joint duty. A steel-concrete bridge span is made modular formed by individual steel-concrete beams, each comprising a metal main beam with stiffeners and combined with it by means of stops the monolithic reinforced concrete slab and metal struts that connect the stiffeners of the metal main beams near the bottom flanges with gussets, attached to the metal upset details, located on the bottom plane of the concrete slab of the roadway of steel-concrete beam, near its longitudinal edges. The steel-concrete beams of the steel-concrete bridge span are united together along the concrete slab of the roadway by longitudinal joints mainly of reinforced concrete and metal rod elements combining neighboring stiffeners of adjacent steel-concrete beams in their lower parts in a plane of metal braces.

EFFECT: invention provides improved quality of the steel-concrete bridge span due to lower consumption of materials and increased durability of the span.

3 cl, 4 dwg