COLLAPSIBLE RAILWAY BRIDGE Russian patent published in 2021 - IPC E01D15/12 

FIELD: bridge construction.

SUBSTANCE: invention relates to the field of bridge construction and, in particular, to temporary collapsible low-water bridges used for the passage of railway rolling stock and high-speed guidance of combined railway and road bridge crossings over wide and shallow water barriers for the period of destruction, reconstruction or restoration of destroyed capital bridges during liquidation of the consequences of natural and man-made emergencies. The collapsible railway bridge consists of frame flat supports, tower supports installed directly on the ground and superstructures, frame flat supports and tower supports are made of decommissioned used railway gondola cars with dismantled frames and bogies filled with blocks assembled from decommissioned used ones. the use of reinforced concrete sleepers. In the intervals between the sleepers, crushed stone is poured and pipes are vertically installed, the top of which protrudes for supplying cement-sand mortar into them. The pipes are made with holes evenly spaced along the height to ensure the formation of a monolithic support structure with a cement-sand mortar. Spans are made of decommissioned used frames of fitting platforms with a flooring arranged on top of the frames for track rails made of metal sleepers installed at a certain pitch and made of metal frames from tanks. On the top of the metal sleepers, a wooden flooring is made from used discarded wooden sleepers for the movement of automobile and tracked vehicles, and for the movement of personnel. Along the edges of the superstructure, a fencing made of stairs from railway tanks and wheel fenders made of decommissioned wooden sleepers are installed.

EFFECT: creation of a simplified design of a collapsible railway bridge near a faulty railway bridge, which significantly reduces labor and material costs, and also reduces the time for its construction using used decommissioned elements of the railway infrastructure - wagons, railway sleepers and rails.

2 cl, 4 dwg