CN219709955U

CN219709955U - Ballast track sleeper

Info

Publication number: CN219709955U
Application number: CN202321097005.1U
Authority: CN
Inventors: 夏振锋
Original assignee: Bengbu Bengtie Sleeper Co ltd
Current assignee: Bengbu Bengtie Sleeper Co ltd
Priority date: 2023-05-09
Filing date: 2023-05-09
Publication date: 2023-09-19
Anticipated expiration: 2033-05-09

Abstract

The utility model provides a ballasted track sleeper, which relates to the sleeper field and comprises a sleeper, wherein a plurality of prestressed steel wires are arranged on the inner side of the sleeper, a plurality of stirrups connected with the sleeper are arranged on the outer side of the prestressed steel wires, at least two prefabricated grooves extending to the inner sides of the prestressed steel wires are arranged at two ends of each stirrup, the at least two prefabricated grooves are staggered according to the center of the sleeper, spiral ribs connected with the sleeper are arranged on the inner sides of the prefabricated grooves, the lateral cross section of the sleeper is in a trapezoid shape with the upper part narrow and the lower part wide, the middle part of the sleeper is concave, the sleeper is made of C60 concrete materials, and the number of the prestressed steel wires is ten. The sleeper has a simple structure, the size of the sleeper can be adjusted through the die, and the sleeper has strong adaptability to different turnout bed forms.

Description

Ballast track sleeper

Technical Field

The utility model relates to the field of sleepers, in particular to a ballasted track sleeper.

Background

When the high-speed railway is paved, the ballasted track is adopted for paving the high-speed railway, but the ballasted track can generate irregular settlement, worsened track geometric state and more prominent problems of ballast crushing and pulverization during use, especially at the positions of damaged steel rails, welding seams, cementing insulating joints and bridge-tunnel transition sections, so that the maintenance workload of the high-speed railway is increased, the high-speed railway is stopped, and meanwhile, the service life of the track is reduced.

Disclosure of Invention

The utility model aims at the problems existing in the prior art, provides the ballast track sleeper, effectively increases the sleeper support area, avoids the problems of irregular settlement and the like, and has the functions of protecting the position and the track gauge of the steel rail besides bearing the pressure transmitted by the steel rail and transmitting the pressure to the track bed, and the ballast track sleeper can be properly deformed to buffer the pressure when a train passes through.

In order to solve the problems in the prior art, the utility model provides a ballasted track sleeper, which comprises a sleeper, wherein a plurality of prestressed steel wires are arranged on the inner side of the sleeper, a plurality of stirrups connected with the sleeper are arranged on the outer sides of the prestressed steel wires, at least two prefabricated grooves extending to the inner sides of the prestressed steel wires are arranged at two ends of each stirrup, at least two prefabricated grooves are staggered according to the center of the sleeper, and spiral ribs connected with the sleeper are arranged on the inner sides of the prefabricated grooves.

Preferably, the lateral cross section of the sleeper is in a trapezoid shape with a narrow upper part and a wide lower part, and the middle part of the sleeper is concave downwards.

Preferably, the sleeper is made of C60 concrete material.

Preferably, the number of the prestressed steel wires is ten, the ten prestressed steel wires are arranged according to a ratio of 3:2:2:3, and the outer side shape of the prestressed steel wires is spiral rib-shaped.

Preferably, the stirrup is a low-carbon cold drawn steel wire, and the diameter size of the stirrup is 6mm.

Preferably, the spiral ribs are low-carbon cold drawn steel wires, and the diameter size of the prestressed steel wires is 3mm.

Preferably, the total tensile force of the plurality of the prestressed steel wires is 450+ -5 kN.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model adopts a prestress design, reduces structural cracks, has good durability, prolongs the service life of the track structure, and is easy to maintain; the sleeper has a simple structure, the size of the sleeper can be adjusted through the die, and the sleeper has strong adaptability to different turnout bed forms.

Drawings

FIG. 1 is a schematic cross-sectional view of a tie of the present utility model;

FIG. 2 is a schematic top view of the overall structure of the present utility model;

FIG. 3 is a schematic cross-sectional view of an end portion of a tie of the present utility model;

FIG. 4 is a schematic cross-sectional view of a middle portion of a tie of the present utility model;

FIG. 5 is a schematic top view of a spiral rib of the present utility model;

reference numerals: 1. sleeper; 2. a prestressed steel wire; 3. stirrups; 4. spiral ribs; 5. prefabricating grooves.

Detailed Description

In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model.

Specific embodiments of the present utility model are described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1-5, a ballast track sleeper is provided, which is a sleeper 1 suitable for a pretensioning production process, the sleeper 1 is suitable for 1435mm curved tracks and straight tracks with the radius R being more than or equal to 300m, when the sleeper 1 is paved below the tracks, a track bed is paved below the sleeper 1, the sleeper 1 and the track bed are connected into a whole through trusses, the trusses are formed by uniformly arranging a plurality of steel bars at intervals, the trusses support the sleeper 1, the sleeper 1 is formed by concrete pouring, and the strength of the concrete is not lower than 75% of the design strength when the sleeper 1 is tensioned, steel wires are not allowed to be cut directly under the condition of being stressed, an automatic tensioning device is suitable for being adopted, the lateral cross section of the sleeper 1 is in a narrow upper part and a wide lower part, and the middle part of the sleeper 1 is sunken downwards;

and the middle part of the sleeper 1 forms a pouring framework through intervention of the stress steel wires 2 and the stirrups 3, wherein the total tensile force of the prestressed steel wires is 450+/-5 kN.

The embedded sleeve for fixing each part of the rail is embedded before pouring the upper part of the sleeper 1, wherein the pulling resistance of the embedded sleeve is not less than 60kN, and the spiral rib 4 is sleeved on the outer side of the embedded sleeve, so that the prefabricated groove 5 is formed after pouring the sleeper 1, the spiral rib 4 is fixed on the inner side of the prefabricated groove 5, the prestress design is adopted, structural cracks are reduced, the durability is good, the service life of the rail structure is prolonged, maintenance and maintenance are easy, the sleeper 1 is simple in structure, the size of the sleeper 1 can be adjusted through a die, and the adaptability to different turnout bed forms is strong.

Wherein, the sleeper 1 is made of C60 concrete, wherein, the selection and the quality of raw materials of the sleeper 1 should meet the relevant regulations of GB/T37330 ballasted track sleeper concrete sleeper.

Wherein, the prestress steel wire 2 adopts 10 spiral rib steel wires, and the main mechanical property thereof should meet the related requirements of GB/T5223 steel wire for prestress concrete.

Wherein, the stirrup 3 adopts a low-carbon cold drawn steel wire with phi 6mm, and the technical performance of the stirrup should meet the related requirements of YB/T5294 general purpose low-carbon steel wire.

Wherein, the spiral rib 4 adopts a phi 3mm low-carbon cold drawn steel wire, and the technical performance of the spiral rib should meet the related requirements of YB/T5294 general purpose low-carbon steel wire.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a ballasted track sleeper, its characterized in that includes sleeper (1), the inboard of sleeper (1) is equipped with a plurality of prestressing force steel wire (2), a plurality of the outside of prestressing force steel wire (2) be equipped with a plurality of stirrups (3) that sleeper (1) are connected, the both ends of stirrups (3) all are equipped with two at least and extend to a plurality of prefabrication groove (5) of prestressing force steel wire (2) inboard, two at least prefabrication groove (5) are according to the central staggered arrangement of sleeper (1), prefabrication groove (5) inboard be equipped with spiral muscle (4) that sleeper (1) are connected.

2. The ballasted track sleeper of claim 1, wherein: the lateral cross section of the sleeper (1) is in a trapezoid shape with a narrow upper part and a wide lower part, and the middle part of the sleeper (1) is concave downwards.

3. The ballasted track sleeper of claim 1, wherein: the sleeper (1) is made of C60 concrete materials.

4. The ballasted track sleeper of claim 1, wherein: the number of the prestressed steel wires (2) is ten, the ten prestressed steel wires (2) are arranged according to a ratio of 3:2:2:3, and the outer side shape of the prestressed steel wires (2) is in a spiral rib shape.

5. The ballasted track sleeper of claim 1, wherein: the stirrup (3) is a low-carbon cold drawn steel wire, and the diameter of the stirrup (3) is 6mm.

6. The ballasted track sleeper of claim 1, wherein: the spiral rib (4) is a low-carbon cold drawn steel wire, and the diameter of the prestressed steel wire (2) is 3mm.

7. The ballasted track sleeper of claim 1, wherein: the total tensile force of the prestressed steel wires (2) is 450+/-5 kN.