CN220520975U - Longitudinal-connection type trapezoidal sleeper prefabricated slab track structure - Google Patents
Longitudinal-connection type trapezoidal sleeper prefabricated slab track structure Download PDFInfo
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- CN220520975U CN220520975U CN202322041842.9U CN202322041842U CN220520975U CN 220520975 U CN220520975 U CN 220520975U CN 202322041842 U CN202322041842 U CN 202322041842U CN 220520975 U CN220520975 U CN 220520975U
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- longitudinal
- sleeper
- trapezoid
- track structure
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- 241001669679 Eleotris Species 0.000 title claims abstract description 58
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- 230000000712 assembly Effects 0.000 claims abstract description 13
- 238000000429 assembly Methods 0.000 claims abstract description 13
- 238000004873 anchoring Methods 0.000 claims abstract description 12
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 8
- 238000013016 damping Methods 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims 4
- 238000010276 construction Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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Abstract
The utility model provides a longitudinal-connection type trapezoidal sleeper precast slab track structure which comprises a plurality of track assemblies connected longitudinally; the track assembly comprises a steel rail, a fastener, a post-pouring rail bearing table and a trapezoid sleeper precast slab; the post-pouring rail bearing platform is arranged on the trapezoid sleeper precast slab, and the steel rail is fixed on the post-pouring rail bearing platform through the fastener; and an anchoring device for connection is arranged between the adjacent track assemblies. In the longitudinally-connected type trapezoidal sleeper prefabricated plate track structure, the longitudinally-connected type structure is adopted among track components, shear stress received by each trapezoidal sleeper prefabricated plate can be transmitted and dispersed to adjacent track components, the buckling deformation of the trapezoidal sleeper caused by temperature gradient is eliminated, and the longitudinal stability and the transverse stability of the trapezoidal sleeper prefabricated plate track structure can be effectively improved.
Description
Technical Field
The utility model belongs to the technical field of rail transit construction, and particularly relates to a longitudinal-connection type trapezoidal sleeper precast slab rail structure.
Background
With the rapid development of rail transit in China, the problems of vibration and noise induced during train running are more remarkable. When the train runs at a high speed, the rail is induced to generate great vibration and noise, and the great vibration and noise are transmitted to the superstructure. At present, the trapezoidal sleeper is widely applied to urban rail transit.
When the trapezoidal sleeper is adopted: 1) The trapezoidal sleeper adopts the unit prefabricated plate, does not connect between the adjacent unit board, and trapezoidal sleeper longeron adopts 3 circular steel pipes to connect, and track board overall rigidity is low, horizontal longitudinal stability is relatively poor, leads to the rail ripples to grind the aggravation easily to the noise is great in the initiation car, influences the travelling comfort of taking. 2) When the trapezoid sleeper is adopted on the curve, as the positions of the rail bearing table and the bolt holes of the fastener are fixed when the sleeper is prefabricated in a factory, the scheme in the present stage can only be realized by directly replacing the curve and adjusting the transverse offset of the on-site fastener, the construction difficulty is high, and the adaptability of the trapezoid sleeper is poor particularly on the curve with a small radius. In addition, the height difference between the outer side and the inner side of the curve section is gradually changed on the curve, and the difficulty in adjusting the precast slab of the trapezoid sleeper is increased.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model aims to provide a longitudinal-connecting type trapezoidal sleeper prefabricated slab track structure.
The technical scheme adopted for solving the technical problems is as follows:
a longitudinally connected trapezoidal sleeper prefabricated slab track structure comprising:
a plurality of longitudinally connected track assemblies;
the track assembly comprises a steel rail, a fastener, a post-pouring rail bearing table and a trapezoid sleeper precast slab;
the post-pouring rail bearing platform is arranged on the trapezoid sleeper precast slab, and the steel rail is fixed on the post-pouring rail bearing platform through the fastener;
and an anchoring device for connection is arranged between the adjacent track assemblies.
Preferably, the trapezoid sleeper prefabricated plate comprises two longitudinal beams and connecting rods, the longitudinal beams are arranged in parallel, and the connecting rods are more than two and are connected with the adjacent longitudinal beams.
Preferably, a plurality of rail bearing grooves are formed in the longitudinal beam, and the post-pouring rail bearing table is arranged in the rail bearing grooves.
Preferably, a plurality of reinforcing steel bar pieces are arranged in the longitudinal beam and along the longitudinal extension direction of the longitudinal beam.
Preferably, grooves are formed in two ends of the longitudinal extension direction of the longitudinal beam, a threaded reinforcing steel bar piece is further arranged in the longitudinal beam, one end of the threaded reinforcing steel bar piece is located in the grooves, and the anchoring devices are respectively connected with the threaded reinforcing steel bar pieces on the adjacent track assemblies.
Preferably, the anchoring device comprises a locker, an insulating sleeve and an anchoring nut;
the locker comprises a mounting hole site, the insulating sleeve is matched with the mounting hole site, and one end of the threaded reinforcing steel bar piece penetrates through the insulating sleeve and is connected with the anchor nut.
And a limiting boss is arranged on the side surface of the longitudinal beam.
Preferably, the dimension of the space between adjacent tie bars corresponds to the dimension of the space between two beams.
Preferably, the rail assembly further comprises a concrete substrate and a vibration reduction pad, wherein the rail assembly which is longitudinally connected is arranged on the concrete substrate through the vibration reduction pad.
Preferably, the concrete substrate is provided with a placing groove, and the track assembly and the vibration reduction pad which are longitudinally connected are positioned in the placing groove.
Compared with the prior art, the utility model has the beneficial effects that:
in the longitudinally-connected type trapezoidal sleeper prefabricated plate track structure, the longitudinally-connected type structure is adopted among track components, shear stress received by each trapezoidal sleeper prefabricated plate can be transmitted and dispersed to adjacent track components, the buckling deformation of the trapezoidal sleeper caused by temperature gradient is eliminated, and the longitudinal stability and the transverse stability of the trapezoidal sleeper prefabricated plate track structure can be effectively improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a cross-sectional view of the present utility model.
Fig. 3 is a schematic structural view of a prefabricated slab for trapezoid sleeper according to the present utility model.
Fig. 4 is a cross-sectional view of A-A of fig. 3.
Fig. 5 is a schematic structural view of the anchoring device of the present utility model.
Wherein:
1-steel rail, 2-fastener, 3-post-cast rail bearing platform, 4-trapezoid sleeper prefabricated plate, 5-longitudinal beam, 6-connecting rod, 7-rail bearing groove, 8-reinforcing steel bar piece, 9-groove, 10-screw steel bar piece, 11-locker, 12-insulating sleeve, 13-anchor nut, 14-limit boss, 15-concrete substrate, 16-damping pad.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. In addition, embodiments of the present application and features of the embodiments may be combined with each other without conflict. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, and the described embodiments are merely some, rather than all, embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
Examples:
as shown in fig. 1 to 5, there is provided a longitudinal trapezoid sleeper prefabricated slab track structure provided at a concrete base 15, comprising:
a plurality of longitudinally connected track assemblies;
the track assembly comprises a steel rail 1, a fastener 2, a post-pouring rail bearing table 3 and a trapezoid sleeper precast slab 4;
the post-pouring rail bearing platform 3 is arranged on the trapezoid sleeper precast slab 4, and the steel rail 1 is fixed on the post-pouring rail bearing platform 3 through the fastener 2;
an anchoring device for connection is arranged between the adjacent track assemblies.
In the longitudinally-connected type trapezoidal sleeper prefabricated plate track structure, the longitudinally-connected type structure is adopted among track components, shear stress received by each trapezoidal sleeper prefabricated plate 4 can be transmitted and dispersed to adjacent track components, the buckling deformation of the trapezoidal sleeper caused by temperature gradient is eliminated, and the longitudinal stability and the transverse stability of the trapezoidal sleeper prefabricated plate track structure can be effectively improved.
In this embodiment, specifically, the trapezoidal sleeper precast slab 4 includes two stringers 5 and tie rods 6, the number of stringers 5 is two and arranged in parallel, the number of tie rods 6 is two or more and connects adjacent stringers 5, and the size of the space between adjacent tie rods 6 is consistent with the size of the space between two beams. The connecting rod 6 can be made of concrete, and the cross section area of the connecting rod 6 can be consistent with that of the existing circular connecting steel pipe in engineering, so that the transverse rigidity of the trapezoid sleeper can be effectively increased.
For the connection structure of the trapezoid sleeper precast slab 4 and the post-cast rail bearing platform 3, in particular, a plurality of rail bearing grooves 7 are reserved on the longitudinal beams 5, and the post-cast rail bearing platform 3 is arranged in the rail bearing grooves 7. And a number of reinforcing steel members 8 are provided in the stringers 5 in the longitudinal extension of the stringers 5. In specific construction, after the steel rail 1 is erected on site, the post-cast rail bearing platform 3 performs on-site casting according to the plane position and the height of the curve section fastener 2, so that the problem that the plane line type of the trapezoid sleeper of the curve section and the ultra-high construction are difficult to adjust can be solved.
For the connection structure between the track components, specifically, grooves 9 are formed at two ends of the longitudinal extension direction of the longitudinal beam 5, a deformed bar 10 is further arranged in the longitudinal beam 5, one end of the deformed bar 10 is positioned in the grooves 9, and the anchoring devices are respectively connected with the deformed bar 10 on the adjacent track components so as to realize longitudinal connection.
The anchoring device of the present embodiment includes a locker 11, an insulating sleeve 12 and an anchor nut 13;
the locker 11 includes a mounting hole, an insulating sleeve 12 is matched with the mounting hole, and one end of the twisted steel member 10 passes through the insulating sleeve and is connected with an anchor nut 13. The insulation sleeve 12 is arranged between the locker 11 and the twisted steel member 10, so that insulation between the steel bars of two adjacent track assemblies is ensured, and the requirement of urban rail transit stray current protection is met; the locker 11 and the two side screw-thread steel bar members 10 are anchored together by applying torsion to the anchor nuts 13 on site, so that the longitudinal connection of adjacent track assemblies is realized, and the connection strength of the two side screw-thread steel bar members 10 can be adjusted by adjusting the torsion.
The side of the concrete longitudinal beam 5 is provided with a limit boss 14.
In this embodiment, the concrete base 15 is provided with a placement groove, the placement groove is provided with a vibration damping pad 16, and the longitudinally connected track assembly is arranged in the placement groove of the concrete base 15 through the vibration damping pad 16. The vibration-damping pad 16 can improve the vibration-damping effect of the connecting structure of the track assembly and the concrete substrate 15, and reduce vibration and noise.
In summary, the advantages of the present application are as follows:
the first and the track components adopt a longitudinal connecting structure, so that the shearing stress received by each trapezoid sleeper precast slab 4 can be transmitted and dispersed to the adjacent track components, the buckling deformation of the trapezoid sleeper caused by temperature gradient is eliminated, and the longitudinal and transverse stability of the longitudinal trapezoid sleeper precast slab track structure can be effectively improved.
And the longitudinal beams 5 of the second and rail assemblies are connected with the connecting rods 6 made of a plurality of concrete materials with the same cross section as the original steel pipes, so that the overall rigidity of the trapezoid sleeper precast slab 4 is effectively improved.
Thirdly, the structure of the longitudinal-connection type trapezoidal sleeper precast slab track adopts a post-pouring type track supporting platform structure, after the steel rail 1 is erected on site, the track supporting platform is cast on site according to the plane position and the height of the curve section fastener, the problems that the curve section fastener 2 is difficult to transversely shift and adjust and the construction difficulty is high are solved, and the laying precision of the trapezoidal sleeper section track is ensured.
The present utility model is not limited to the preferred embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical principles of the present utility model are within the scope of the technical proposal of the present utility model.
Claims (10)
1. A longitudinally connected trapezoidal sleeper prefabricated slab track structure, comprising:
a plurality of longitudinally connected track assemblies;
the track assembly comprises a steel rail, a fastener, a post-pouring rail bearing table and a trapezoid sleeper precast slab;
the post-pouring rail bearing platform is arranged on the trapezoid sleeper precast slab, and the steel rail is fixed on the post-pouring rail bearing platform through the fastener;
and an anchoring device for connection is arranged between the adjacent track assemblies.
2. The longitudinal trapezoid sleeper prefabricated slab track structure according to claim 1, wherein the trapezoid sleeper prefabricated slab comprises two longitudinal beams and connecting rods, the longitudinal beams are arranged in parallel, and the connecting rods are more than two and connect the adjacent longitudinal beams.
3. The longitudinal trapezoid sleeper prefabricated slab track structure according to claim 2, wherein a plurality of rail bearing grooves are formed in the longitudinal beams, and the post-cast rail bearing table is arranged in the rail bearing grooves.
4. A longitudinal trapezoid sleeper prefabricated slab track structure as in claim 3 wherein a plurality of reinforcing rebar pieces are disposed within and along the longitudinal extension of said stringers.
5. A longitudinal trapezoid sleeper prefabricated slab track structure according to claim 3, wherein grooves are formed in two ends of the longitudinal beam in the longitudinal extension direction, a threaded reinforcing bar member is further arranged in the longitudinal beam, one end of the threaded reinforcing bar member is located in the grooves, and the anchoring devices are respectively connected with the threaded reinforcing bar members on the adjacent track assemblies.
6. The longitudinal trapezoid sleeper prefabricated slab track structure according to claim 5, wherein the anchoring means includes a locker, an insulating sleeve and an anchor nut;
the locker comprises a mounting hole site, the insulating sleeve is matched with the mounting hole site, and one end of the threaded reinforcing steel bar piece penetrates through the insulating sleeve and is connected with the anchor nut.
7. The longitudinal trapezoid sleeper prefabricated slab track structure according to claim 2, wherein limiting bosses are arranged on the side surfaces of the longitudinal beams.
8. A longitudinal tie ladder tie precast slab track structure as defined in claim 2, wherein the spacing dimension between adjacent tie bars is consistent with the spacing dimension between two of said beams.
9. The longitudinal trapezoid sleeper prefabricated slab track structure according to claim 1, further comprising a concrete base and a vibration damping pad, wherein the longitudinally connected track assembly is provided on the concrete base through the vibration damping pad.
10. The longitudinal trapezoid sleeper prefabricated slab track structure according to claim 9, wherein a placing groove is formed in the concrete substrate, and the longitudinally connected track assembly and the vibration reduction pad are located in the placing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322041842.9U CN220520975U (en) | 2023-08-01 | 2023-08-01 | Longitudinal-connection type trapezoidal sleeper prefabricated slab track structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322041842.9U CN220520975U (en) | 2023-08-01 | 2023-08-01 | Longitudinal-connection type trapezoidal sleeper prefabricated slab track structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220520975U true CN220520975U (en) | 2024-02-23 |
Family
ID=89935181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322041842.9U Active CN220520975U (en) | 2023-08-01 | 2023-08-01 | Longitudinal-connection type trapezoidal sleeper prefabricated slab track structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220520975U (en) |
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2023
- 2023-08-01 CN CN202322041842.9U patent/CN220520975U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: ANJINGER (SHANGHAI) TECHNOLOGY CO.,LTD. Assignor: GUANGZHOU METRO DESIGN & RESEARCH INSTITUTE Co.,Ltd. Contract record no.: X2024980005930 Denomination of utility model: A longitudinal trapezoidal sleeper prefabricated slab track structure Granted publication date: 20240223 License type: Common License Record date: 20240520 |