RU2533566C1 - Metal railway span - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: metal railway span includes main trusses and a traffic area fixed to them, made of a grid of longitudinal and transverse beams and metal crosspieces laid onto them with a rail track. Metal crosspieces are made as composite along the length in the form of separate transverse ribs fixed by sides to side internal walls of main trusses and side walls of the longitudinal beams of the traffic area. The upper edge of transverse ribs is located at the level of upper edges of longitudinal and transverse beams of the traffic area. A solid metal slab is fixed to main trusses, to upper edges of longitudinal and transverse beams, and also to an upper edge of transverse ribs along the entire length and width of the span. On it in areas of crossing of transverse ribs and longitudinal beams of the traffic area there are metal bases with a rail track placed onto them.

EFFECT: increased operational reliability.

2 cl, 3 dwg

Description

The invention relates to bridge construction and can be used in the construction of metal railway spans.

Known span with a ride on the cross members, including the main truss and the roadway attached to them, consisting of a lattice in the form of longitudinal beams, transverse beams and metal cross members laid on them with a rail track / 1 /.

A disadvantage of the known span with a carriageway on metal crossbars along the longitudinal and transverse beams is the large construction height, busyness during installation and the complexity of the maintenance of the carriageway, as well as the impossibility of an organized collection and removal of water from the span. In addition, it is necessary to establish the design of service passages that complicate the maintenance of the elements of the superstructure.

The objective of the present invention is to reduce the construction height and weight of the carriageway structures due to the inclusion of metal cross members and the grill of the carriageway from longitudinal and transverse beams while working together with the necessary environmental requirements for the operation of the bridge.

This goal is achieved due to the fact that in a metal railway span, including the main trusses and the roadway attached to them, consisting of a lattice in the form of longitudinal and transverse beams and metal cross-beams laid with a rail track on them, the metal cross-beams are made lengthwise in the form of separate transverse ribs attached laterally to the walls of the main trusses and longitudinal beams of the carriageway so that the upper edge of the transverse ribs is located at the level of solid edges of the longitudinal beams of the carriageway, and to the main trusses and to the upper edges of the longitudinal and transverse beams, as well as to the upper edge of the transverse ribs along the entire length and width of the span, a solid metal plate is attached on which at the intersection of the transverse ribs and longitudinal beams of the carriageway parts installed metal plinths with a rail placed on them.

A continuous metal plate may have a gable lateral slope and is equipped with a device for collecting and evacuating water.

The invention is illustrated by drawings, where:

- figure 1 shows the roadway, a top view (rail is not shown);

- figure 2 shows a cross section of the carriageway of a metal railway span along the axis of installation of the transverse beams;

- figure 3 shows a cross section of the carriageway of a metal railway span along the axis of installation of the transverse ribs.

The metal railway span includes a carriageway 1 attached to the main trusses (in some span structures - to the main beams) 2. The carriageway 1 is made in the form of a lattice of longitudinal beams 3 and transverse beams 4 attached to them, installed with a uniform pitch along the span buildings. The metal cross members are made integral along the length in the form of transverse ribs 5, attached laterally to the walls 6 of the longitudinal beams 3 and the inner sides of the main trusses 2. The upper edge 7 of the transverse ribs 5 is located at the level of the upper edges 8 of the longitudinal 3 and transverse beams 4. The carriageway 1 has a continuous metal plate 9 over the entire width and length of the span, attached to the main trusses 2, to the upper edges of the transverse ribs 5 and to the upper edges 8 of the longitudinal 3 and transverse 4 beams.

The continuous metal plate 9 is gable with a transverse slope and is provided with socles 10 with a rail track 11 fixed at the intersection of the transverse ribs 5 and the longitudinal beams 3. The continuous metal plate 9 is equipped with a device for collecting and evacuating water from the carriageway 12.

This invention will reduce the weight and construction height of the metal railway span and prevent the discharge from the roadway of untreated water into the reservoir.

Information sources

1. “Technical Instructions for the design and construction of bridge tracks on railway bridges of Russian Railways, section 4, was introduced by Order No. 2195 of October 12, 2011 (see Appendix No. 1).

Claims (2)

1. A metal railway span, including the main trusses and the roadway attached to them, consisting of a lattice in the form of longitudinal and transverse beams and metal cross members laid on them with a rail track, characterized in that the metal cross members are made integral in length as separate transverse ribs attached laterally to the side inner walls of the main trusses and the side walls of the longitudinal beams of the carriageway so that the upper edge of the transverse ribs is located on exactly the upper edges of the longitudinal and transverse beams of the roadway, and to the main trusses, to the upper edges of the longitudinal and transverse beams, as well as to the upper edge of the transverse ribs along the entire length and width of the span, a solid metal plate is attached on which at the intersection of the transverse ribs and The longitudinal beams of the carriageway are equipped with metal plinths with a rail placed on them. 2. The metal railway span according to claim 1, characterized in that the continuous metal plate has a gable transverse slope and is equipped with a device for collecting and evacuating water.

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