CN213013711U - Longitudinal connecting block type sleeper - Google Patents
Longitudinal connecting block type sleeper Download PDFInfo
- Publication number
- CN213013711U CN213013711U CN202020852045.2U CN202020852045U CN213013711U CN 213013711 U CN213013711 U CN 213013711U CN 202020852045 U CN202020852045 U CN 202020852045U CN 213013711 U CN213013711 U CN 213013711U
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- sleeper
- longitudinal
- reinforcement cage
- bed plate
- blocks
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Abstract
The utility model relates to a longitudinal connecting block type sleeper, which comprises a sleeper block, a longitudinal reinforcement cage and a bed board; the sleeper blocks are longitudinally and uniformly arranged above the track bed plate, the upper part of the reinforcement cage is integrally cast with the sleeper blocks and is locally positioned in the sleeper blocks, and the lower part of the reinforcement cage and the upper part of the sleeper blocks are integrally cast with the track bed plate by external parts and are positioned in the track bed plate. The utility model discloses having strengthened the wholeness of prefabricated sleeper block and cast-in-place bed board, being favorable to keeping track geometry position, having improved the cooperative work ability between vertical sleeper block, can reduce railway roadbed and foundation stress, alleviate the rail corrugation, reduce maintenance work load. Meanwhile, the sleepers are longitudinally prefabricated, so that the workload of adjusting the construction site can be reduced.
Description
Technical Field
The utility model belongs to cast-in-place railway roadbed plate formula ballastless track engineering field of urban rail transit, concretely relates to vertically even piece formula sleeper.
Background
The ballastless track sleeper bears train loads transmitted by the steel rail and the fastener and transmits the loads to the ballastless track bed, and the combination capacity between the sleeper and cast-in-place concrete of the ballastless track bed is of great importance to the driving safety and the durability of the ballastless track. The main defects of the sleeper commonly adopted by the existing urban rail transit cast-in-place concrete track bed are as follows:
1. the concrete short sleeper is adopted, so that parameters such as rail base slopes, superelevation, distance between front and rear adjacent sleepers and the like of the left sleeper and the right sleeper need to be controlled simultaneously during construction, the field adjustment workload is large, the construction precision is poor, and the integrity of the track bed is poor.
2. Adopt long pillow of concrete, be equipped with the perforation reinforcing bar in the sleeper, the railway roadbed wholeness is better, but the clearance needs on-the-spot mud jacking between downthehole reinforcing bar and sleeper, and mud jacking work load is big and the effect can't be ensured, and the work load of the adjacent sleeper interval of on-the-spot adjustment is big simultaneously.
Disclosure of Invention
The utility model aims at providing a vertical even piece formula sleeper overcomes current cast in situ concrete railway roadbed sleeper construction precision is low, the railway roadbed wholeness is poor, the big scheduling problem of on-the-spot adjustment work load.
The utility model discloses the technical scheme who adopts does:
a longitudinal connected block sleeper is characterized in that:
the sleeper comprises a sleeper block, a longitudinal reinforcement cage and a track bed board;
the sleeper blocks are longitudinally and uniformly arranged above the track bed plate, the upper part of the reinforcement cage is integrally cast with the sleeper blocks and is locally positioned in the sleeper blocks, and the lower part of the reinforcement cage and the upper part of the sleeper blocks are integrally cast with the track bed plate by external parts and are positioned in the track bed plate.
The steel reinforcement cage includes that twice is fore-and-aft upper reinforcing bar and twice is fore-and-aft lower floor's reinforcing bar, and upper reinforcing bar and lower floor's reinforcing bar pass through the hoop welded connection of periphery hoop, form steel reinforcement cage structure.
The upper layer steel bar and the sleeper block are integrally poured, and the part of the upper layer steel bar is positioned in the sleeper block.
The lower layer reinforcing steel bars and the upper layer sleeper blocks are integrally cast with the track bed plate through the outer parts and are positioned in the track bed plate.
The stirrups are located between longitudinally adjacent sleeper blocks and are arranged transversely.
Between the longitudinal adjacent longitudinal connected block type sleepers, the upper layer steel bars and the lower layer steel bars are longitudinally connected through the extrusion sleeves.
The utility model has the advantages of it is following:
the utility model discloses having strengthened the wholeness of prefabricated sleeper block and cast-in-place bed board, being favorable to keeping track geometry position, having improved the cooperative work ability between vertical sleeper block, can reduce railway roadbed and foundation stress, alleviate the rail corrugation, reduce maintenance work load. Meanwhile, the sleepers are longitudinally prefabricated, so that the workload of adjusting the construction site can be reduced.
Drawings
Fig. 1 is a plan view of the present invention;
fig. 2 is a cross-sectional view of the present invention;
fig. 3 is a cross-sectional view of the present invention;
FIG. 4 is a schematic view of the mechanical connection of the longitudinal reinforcing bars of the present invention;
FIG. 5 is a plan view of the utility model when it is poured into the ballast bed slab;
FIG. 6 is a cross section of the utility model when pouring the ballast bed plate;
FIG. 7 is a plan view of the present invention as it would be poured into a track-bearing table-type track bed;
FIG. 8 is a cross-section of the present invention as it would be poured into a track-bearing table-type track bed;
figure 9 is a longitudinal section of the utility model when it is poured in the bed plate.
In the figure: 1. the steel bar of upper strata, 2 lower floor's steel bar, 3, stirrup, 4 sleeper blocks, 5, the bed board, 6 extrusion sleeve.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
The utility model relates to a vertically even piece formula sleeper, the sleeper includes sleeper block 4, fore-and-aft steel reinforcement cage and railway roadbed board 5. The sleeper blocks 4 are longitudinally and uniformly arranged above the track bed plate 5, the upper part of the reinforcement cage is integrally cast with the sleeper blocks 4 and is locally positioned in the sleeper blocks 4, and the lower part of the reinforcement cage and the upper sleeper blocks are integrally cast with the track bed plate 5 from the outside and are positioned in the track bed plate 5.
The steel reinforcement cage includes that twice is fore-and-aft upper reinforcing bar 1 and twice is fore-and-aft lower floor's reinforcing bar 2, and upper reinforcing bar 1 and lower floor's reinforcing bar 2 form the steel reinforcement cage structure through the 3 welded connection of the hoop of periphery hoop. The upper layer steel bar 1 and the sleeper block 4 are integrally poured, and the part of the upper layer steel bar is positioned in the sleeper block 4. The lower layer reinforcing steel bars 2 and the upper layer sleeper blocks are integrally cast with the track bed plate 5 from the outside and are positioned in the track bed plate 5. The stirrups 3 are located between longitudinally adjacent sleeper blocks 4, arranged transversely.
Between longitudinally adjacent longitudinal tie blocks, the upper and lower reinforcing bars 1 and 2 are connected by mechanical connection, for example by means of an extruded sleeve 6.
The specification, model, material and mechanical property indexes of the extrusion sleeve 6 are selected according to the types of the upper layer steel bar 1 and the lower layer steel bar 2 and according to relevant regulations in the technical regulation for extrusion connection of ribbed steel bar sleeves (JGJ 108-96).
The utility model discloses a link block sleeper is established ties a plurality of sleeper blocks by longitudinal connection reinforcing bar, stirrup etc. and is formed, and the muscle is indulged to the upper strata and is pour with sleeper block an organic whole, and the lower floor is indulged the muscle and is indulged the muscle through welding stirrup and upper strata and is connected to pour in the railway roadbed board, the sleeper block can adopt the sleeper block of short sleeper and other non-standard forms, sleeper block figure, interval can be according to the design adjustment.
The content of the present invention is not limited to the examples, and any equivalent transformation adopted by the technical solution of the present invention is covered by the claims of the present invention by those skilled in the art through reading the present invention.
Claims (6)
1. A longitudinal connected block sleeper is characterized in that:
the sleeper comprises a sleeper block (4), a longitudinal reinforcement cage and a track bed plate (5);
the sleeper blocks (4) are longitudinally and uniformly arranged above the track bed plate (5), the upper part of the reinforcement cage and the sleeper blocks (4) are integrally poured, the part of the reinforcement cage is positioned in the sleeper blocks (4), and the sleeper blocks at the lower part and the upper part of the reinforcement cage are integrally poured with the track bed plate (5) from the outside and are positioned in the track bed plate (5).
2. A longitudinal tie as claimed in claim 1 wherein:
the steel reinforcement cage comprises two longitudinal upper-layer steel reinforcements (1) and two longitudinal lower-layer steel reinforcements (2), wherein the upper-layer steel reinforcements (1) and the lower-layer steel reinforcements (2) are connected through circumferential stirrups (3) in a welded mode to form a steel reinforcement cage structure.
3. A longitudinal tie as claimed in claim 2 wherein:
the upper layer of steel bars (1) and the sleeper blocks (4) are integrally poured, and the local part of the upper layer of steel bars is positioned in the sleeper blocks (4).
4. A longitudinal tie as claimed in claim 3 wherein:
the lower layer steel bars (2) and the parts except the upper parts of the sleeper blocks (4) are integrally poured with the track bed plate (5) and are positioned in the track bed plate (5).
5. A longitudinal tie as claimed in claim 4 wherein:
the stirrups (3) are positioned between longitudinally adjacent sleeper blocks (4) and are transversely arranged.
6. A longitudinal tie as claimed in claim 5 wherein:
between the longitudinal adjacent longitudinal connecting block type sleepers, the upper layer steel bar (1) and the lower layer steel bar (2) are longitudinally connected through an extrusion sleeve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020852045.2U CN213013711U (en) | 2020-05-20 | 2020-05-20 | Longitudinal connecting block type sleeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020852045.2U CN213013711U (en) | 2020-05-20 | 2020-05-20 | Longitudinal connecting block type sleeper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213013711U true CN213013711U (en) | 2021-04-20 |
Family
ID=75483296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020852045.2U Active CN213013711U (en) | 2020-05-20 | 2020-05-20 | Longitudinal connecting block type sleeper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213013711U (en) |
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2020
- 2020-05-20 CN CN202020852045.2U patent/CN213013711U/en active Active
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