METAL RAILROAD SUPERSTRUCTURE WITH THROUGH TRUSSES AND MOVEMENT ON BALLAST Russian patent published in 2010 - IPC E01D2/00 E01D19/00 

FIELD: construction industry.

SUBSTANCE: metal railroad superstructure includes main trusses with triangular grid having upper and lower flanges, driveway made in the form of single-layered orthotropic plate located in level of lower flanges and consisting of covering plate supported with longitudinal ribs and transverse beams, and rail track on ballast, which rests on orthotropic plate. New feature is that transverse beams of orthotropic plate are attached to lower flanges outside the truss joint area, orthotropic plate consists as to width in each panel of three units connected to each other with longitudinal and transverse butt joints; at that, lower flange in axes of joints is provided from inside with support tables, and covering plate attached as to length of panels to upper plate of lower flanges has chamfers in joints location area and is attached to support tables. Covering plate has in its cross section the double-slope profile with decrease towards flanges of superstructure. Metal rail road superstructure is equipped with water drain devices arranged at attachment points of covering plate to lower flange of superstructure.

EFFECT: improving operating reliability.

3 cl, 5 dwg