METAL RAILROAD SPAN WITH THROUGH TRUSSES AND BALLAST DRIVING Russian patent published in 2019 - IPC E01D19/08 

FIELD: construction.

SUBSTANCE: metal railway span with through trusses and ballast ride includes main trusses with upper and lower belts, roadway made in the form of an orthotropic plate, located in the level of lower belts and consisting of a flooring sheet supported by longitudinal ribs and transverse beams and located with transverse slopes to the longitudinal axis, ballast trough with rail, resting on orthotropic plate, and water drain device. In side walls of ballast trough in places adjoining to flooring sheet drainage openings are made along span with uniform pitch. Part of the flooring sheet located between the lower belt and the side wall of the ballast trough has an opposite transverse slope and is equipped in the zone of abutment to the ballast trough with holes with water drain devices installed in them. Inside the ballast trough in the area of the drainage openings location there can be longitudinal drainage channels. Drainage device can be equipped with a detachable filtration container or water drain chutes attached to its lower part.

EFFECT: disclosed is metal railroad span with through trusses and ballast driving.

4 cl, 3 dwg