CN215104297U - One-way prestressing force sleeper of twin - Google Patents
One-way prestressing force sleeper of twin Download PDFInfo
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- CN215104297U CN215104297U CN202120587950.4U CN202120587950U CN215104297U CN 215104297 U CN215104297 U CN 215104297U CN 202120587950 U CN202120587950 U CN 202120587950U CN 215104297 U CN215104297 U CN 215104297U
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- sleeper
- prestressed
- twin
- steel bar
- unidirectional
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Abstract
The utility model discloses an one-way prestressing force sleeper of twin. The double-linkage unidirectional prestressed sleeper mainly comprises concrete, an upper transverse prestressed tendon and a lower transverse prestressed tendon which are buried in the concrete, and a longitudinal constructional steel bar, wherein a layer of longitudinal constructional steel bar is arranged between the upper transverse prestressed tendon and the lower transverse prestressed tendon, and the transverse prestressed tendon and the longitudinal constructional steel bar are vertically arranged. The utility model discloses when great deformation takes place in small radius curve section track structure basis, can realize not disconnected rail according to the one-way prestressing force sleeper of line demand adjustment twin in the skylight point, do not shut down the operation, reach quick, low-cost prosthetic purpose.
Description
Technical Field
The utility model relates to an one-way prestressing force sleeper of twin belongs to the track engineering field, is applicable to the track engineering that the medium and small radius curve section is restoreed fast in the track traffic line.
Background
The track system is divided into two types of ballast tracks and ballastless tracks, and ballastless track structures such as ballast tracks or adjustable frame plates, trapezoidal sleepers and the like are generally adopted for track engineering needing to be quickly repaired after a line foundation is deformed and damaged. There are major problems as follows:
(1) ballast track
The geometric shape and position of the track are not easy to maintain, and the maintenance workload is large in the operation period. And the surface of the ballast bed does not need maintenance and repair personnel to carry out related maintenance and repair work.
(2) Ballastless track
The adjustable frame plate and the trapezoidal sleeper are limited by bosses in the longitudinal and transverse directions, once the space generated by the circuit foundation is greatly deformed to damage the frame plate structure or the limit bosses, the prefabricated plate needs to be replaced or the structure foundation needs to be poured again, the field repair workload is large, the time is long, and the rapid repair is difficult to realize.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that exists among the background art, the utility model provides an one-way prestressing force sleeper of twin. The utility model overcomes there is the tiny fragments of stone, coal, etc. track to be difficult to keep track geometry position now, ballastless tracks such as adjustable frame plate, trapezoidal sleeper repair long time, the big scheduling problem of work load when big dislocation takes place in little radius curve section.
The utility model adopts the technical proposal that:
the utility model discloses an one-way prestressed sleeper of twin mainly comprises concrete and upper and lower two-layer horizontal prestressing tendons, the vertical constructional steel bar of burying underground in the concrete, arranges the vertical constructional steel bar of one deck between the upper and lower two-layer horizontal prestressing tendons, and horizontal prestressing tendons and vertical constructional steel bar arrange perpendicularly mutually.
The transverse prestressed reinforcing steel bars are stress-relieving reinforcing steel bars.
The number of the transverse prestressed reinforcements is 8-12, and the diameter of the transverse prestressed reinforcements can be 8-12 mm.
The longitudinal structural steel bar is hot-rolled ribbed steel bar.
A rail bearing platform is arranged on each duplex unidirectional prestressed sleeper, and two fasteners (which can be matched with heavy-load fasteners) are respectively arranged on two sides of the rail bearing platform.
A groove is formed in the duplex unidirectional prestressed sleeper, and a rail bearing platform is installed in the groove.
Holes are formed in two sides of the rail bearing platform, and embedded sleeves are installed in the holes in the two sides and used for being connected with fasteners.
The utility model has the advantages that:
the utility model discloses an one-way prestressing force sleeper of twin takes place when great deformation in small radius curve section track structure basis, can adjust the one-way prestressing force sleeper of twin according to the circuit demand in the skylight point, realizes the uninterrupted rail, and the operation of not stopping transport reaches quick, low-cost prosthetic purpose.
Drawings
FIG. 1 is a plan view of the present invention;
fig. 2 is a cross-sectional view of the present invention.
In the figure: 1. the double-linked unidirectional prestressed sleeper comprises 2. an embedded sleeve and 3. a rail bearing platform.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in figure 1, the utility model is suitable for a small radius curve section in wheel rail system circuit. The duplex unidirectional prestressed sleeper 1 mainly comprises poured concrete, an upper transverse prestressed tendon and a lower transverse prestressed tendon which are embedded in the concrete, and a longitudinal constructional steel bar, wherein a layer of longitudinal constructional steel bar is arranged between the upper transverse prestressed tendon and the lower transverse prestressed tendon, and the transverse prestressed tendon and the longitudinal constructional steel bar are vertically arranged.
In the specific implementation, the duplex unidirectional prestressed sleeper has the length of 2.2-2.6 m, the width of 0.65-0.8 m and the height of 0.2-0.3 m.
The transverse prestressed tendons are specifically implemented by adopting stress-relief reinforcing steel bars and adopting a pre-tensioning system and are distributed in an upper layer and a lower layer. The number of the transverse prestressed steel bars is 8-12, and the diameter of the transverse prestressed steel bars can be 8-12 mm.
The longitudinal structural steel bar is a hot-rolled ribbed steel bar, the diameter of the steel bar can be 6-20 mm, and the steel bar is processed into a steel bar hoop which is arranged on the outer side of the transverse prestressed steel bar in a hoop reinforcement mode.
A groove is formed in the duplex unidirectional prestressed sleeper 1, and a rail bearing platform 3 is installed in the groove. Two pairs of rail bearing platforms 3 are arranged on each duplex type unidirectional prestressed sleeper 1, and two fasteners (which can be matched with heavy-load fasteners) are respectively arranged on two sides of each rail bearing platform 3.
Holes are formed in two sides of the rail bearing platform 3, embedded sleeves 2 are installed in the holes in the two sides and used for connecting fasteners, the distance between the holes in the two sides is the distance between the fasteners, the distance between the fasteners is 0.5-0.6 m, and the distance between the embedded sleeves 2 is determined according to the interface conditions of the fasteners.
Claims (7)
1. The utility model provides a one-way prestressed sleeper of twin which characterized in that: the duplex unidirectional prestressed sleeper (1) mainly comprises concrete, an upper transverse prestressed tendon, a lower transverse prestressed tendon and a longitudinal constructional steel bar, wherein the upper transverse prestressed tendon and the lower transverse prestressed tendon are buried in the concrete, a layer of longitudinal constructional steel bar is arranged between the upper transverse prestressed tendon and the lower transverse prestressed tendon, and the transverse prestressed tendon and the longitudinal constructional steel bar are vertically arranged.
2. A twin unidirectional prestressed sleeper as claimed in claim 1, wherein:
the transverse prestressed reinforcing steel bars are stress-relieving reinforcing steel bars.
3. A twin unidirectional prestressed sleeper as claimed in claim 1, wherein:
the number of the transverse prestressed reinforcements is 8-12, and the diameter of the transverse prestressed reinforcements can be 8-12 mm.
4. A twin unidirectional prestressed sleeper as claimed in claim 1, wherein:
the longitudinal structural steel bar is hot-rolled ribbed steel bar.
5. A twin unidirectional prestressed sleeper as claimed in claim 1, wherein:
a rail bearing platform (3) is arranged on each duplex type unidirectional prestressed sleeper (1), and two fasteners (which can be matched with heavy-load fasteners) are respectively arranged on two sides of the rail bearing platform (3).
6. A twin unidirectional prestressed sleeper as claimed in claim 1, wherein:
a groove is formed in the duplex unidirectional prestressed sleeper (1), and a rail bearing platform (3) is installed in the groove.
7. A twin unidirectional prestressed sleeper as claimed in claim 1, wherein:
holes are formed in two sides of the rail bearing platform (3), and embedded sleeves (2) are installed in the holes in the two sides and used for being connected with fasteners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120587950.4U CN215104297U (en) | 2021-03-23 | 2021-03-23 | One-way prestressing force sleeper of twin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120587950.4U CN215104297U (en) | 2021-03-23 | 2021-03-23 | One-way prestressing force sleeper of twin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215104297U true CN215104297U (en) | 2021-12-10 |
Family
ID=79344390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120587950.4U Active CN215104297U (en) | 2021-03-23 | 2021-03-23 | One-way prestressing force sleeper of twin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215104297U (en) |
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2021
- 2021-03-23 CN CN202120587950.4U patent/CN215104297U/en active Active
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