CN101768898B - Longitudinally connected rail plates and connecting method thereof - Google Patents
Longitudinally connected rail plates and connecting method thereof Download PDFInfo
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- CN101768898B CN101768898B CN200910258958XA CN200910258958A CN101768898B CN 101768898 B CN101768898 B CN 101768898B CN 200910258958X A CN200910258958X A CN 200910258958XA CN 200910258958 A CN200910258958 A CN 200910258958A CN 101768898 B CN101768898 B CN 101768898B
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Abstract
The invention discloses longitudinally connected rail plates and a connecting method thereof and belongs to the technical field of longitudinally connected rail plates. The plates comprise a plurality of longitudinally connected rail plates, wherein the end of the rail plate is provided with a groove; a bearing platform of the rail plate is provided with a rail flange slope of 1:38 to 1:42; a shearing device is embedded on the groove; the shearing device comprises a connecting plate with an embedded reinforcing steel bar fixed on one side and a shearing plate fixed on the other side; the shearing plate is provided with teeth at least on one side; and the teeth socket direction of the teeth is vertical to the connecting plate. The connecting method comprises the step of engaging the shearing plates between two adjacent rail plates and then connecting by using bolts. The invention not only has simple structure, but also can efficiently transmit the shear stress on the longitudinally connected rail plates and spread to the adjacent rail plates, can efficiently decrease the function of a positive pressure on the rail plate end and can prevent the rail plates from being broken caused by subgrade settlement.
Description
Technical field
The present invention relates to a kind of track plate, especially relate to a kind of longitudinal-connecting type track slab and attaching method thereof.
Background technology
Existing longitudinal-connecting type track slab directly connects longitudinal reinforcement by junction plate, though can reaching ballastless track, this connected mode gets on the right track vertical connection between plate and the track plate, but for the inhomogeneous location of subgrade settlement, cause the longitudinal-connecting type track slab part unsettled probably, under the pressure of train wheel, the end of longitudinal-connecting type track slab is very easily fractureed, " nodding " phenomenon of the track plate end of often saying just, thus cause the damage of track.
Summary of the invention
The objective of the invention is to: a kind of effective transmission that can guarantee longitudinal-connecting type track slab shear stress on the roadbed is provided, is distributed on the adjacent track plate, effectively reduce the effect of normal pressure, prevent the longitudinal-connecting type track slab that causes track plate end to be fractureed because of subgrade settlement track plate end.Another object of the present invention is to provide a kind of described longitudinal track plate connection method.
Technical scheme of the present invention is: a kind of longitudinal-connecting type track slab, comprise longitudinal-connecting type track slab, track plate end is provided with groove, the cushion cap table top of described track plate is provided with 1: 38～1: 42 rail cant, be embedded with shear device on the described groove, this shear device comprises junction plate, junction plate one side is fixed with embedded bar, the junction plate opposite side is fixed with shear plate, wherein, described embedded bar and junction plate are embedded in the track board concrete in advance, and the one side that described junction plate is connected with shear plate exposes to described bottom portion of groove, and described shear plate exposes to track plate end; Described shear plate one side at least is provided with tooth, and the teeth groove direction of described tooth is vertical with junction plate, also is provided with at least one connecting hole on the described shear plate.Vertical connecting plate of the present invention is that the vertical connecting plate of shelves shoulder is arranged.
Described embedded bar is a U shaped steel muscle.Make be connected between embedded bar and the track board concrete more firm.
The end of described U shaped steel muscle is outwardly-bent.This structure has further strengthened the fastness that is connected between embedded bar and the track board concrete.
Described embedded bar adopts hot rolled ribbed steel bar.
Described connecting hole is a bar hole.Connecting hole on the shear plate adopts the structure of bar hole, can regulate when being convenient to the shear plate engagement of two track plates.
The teeth groove of described tooth is a V-type, and tooth top is the plane.The V-type groove is convenient to processing and teeth groove is meshing with each other, and tooth top is that plane structure is concentrated in order to prevent stress.
Described embedded bar is fixed on junction plate one side with welding manner, and described shear plate is fixed on the junction plate opposite side with welding manner.Adopt this mode that is connected to make that connection is more reliable.
Another technical scheme of the present invention is: described longitudinal track plate connection method comprises the steps:
In turn in advance be layered on roadbed on along the track circuit head and the tail longitudinal-connecting type track slab;
The face that the shear plate of the shear device that is equipped with on the adjacent two longitudinal-connecting type track slab longitudinal terminal surface grooves is provided with tooth is placed in opposite directions, after adjusting these adjacent two longitudinal-connecting type track Board positions, make that the tooth of the shear plate of setting is meshing with each other in opposite directions, pass connecting hole on the shear plate with connecting bolt, and use nut check, make the longitudinal centre line of these adjacent two longitudinal-connecting type track slabs satisfy the requirement of track laying simultaneously.
Method of attachment between the longitudinal-connecting type track slab of the present invention, with respect to existing only for the connected mode of longitudinal prestressing reinforcing bar, the tooth that has increased shear plate between the plate mode that is connected with a joggle, the problem that shearing transmits between the track plate when well having solved subgrade settlement.
The invention has the beneficial effects as follows: the present invention is not only simple in structure, and can guarantee longitudinal-connecting type track slab shear stress on the roadbed effective transmission, be distributed on the adjacent track plate, effectively reduce the effect of normal pressure, prevent to be fractureed because of subgrade settlement causes track plate end to track plate end; When variations in temperature occurring, when longitudinal-connecting type track slab expanded with heat and contract with cold, because of the tooth that engagement is vertically arranged of the shear plate of adjacent longitudinal-connecting type track slab, this tooth can slide along the teeth groove direction, thereby guaranteed the reliability that connects between the track plate.
The present invention is further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the structural representation of longitudinal-connecting type track slab of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 2;
Fig. 4 is the structural representation of shear device among Fig. 1;
Fig. 5 is the vertical view of Fig. 4;
Fig. 6 is the A-A partial sectional view of Fig. 4;
Fig. 7 is the structural representation that shear device connects between the longitudinal-connecting type track slab of the present invention;
Wherein, Reference numeral is: 1 is junction plate, and 2 is embedded bar, and 3 is shear plate, and 4 is connecting hole, 5 is installing hole, and 6 is tooth, and 6-1 is a teeth groove, and 6-2 is a tooth top, and 7 is longitudinal-connecting type track slab, 8 is groove, and 9 is rail cant, and 10 is cushion cap, and 11 is connecting bolt, and 12 is nut.
The specific embodiment
Preferred embodiment
Shown in Fig. 1-6, a kind of longitudinal-connecting type track slab, comprise longitudinal-connecting type track slab 7, cushion cap 10 table tops of described track plate 7 are provided with 1: 38～1: 42 rail cant 9, also be that the present embodiment employing has a shelves shoulder suspended deck structure, track plate 7 ends are provided with groove 8, be embedded with shear device on the described groove 8, this shear device comprises junction plate 1, junction plate 1 one sides adopt welding manner to be fixed with embedded bar 2, and embedded bar 2 is a U shaped steel muscle, and the end of U shaped steel muscle is outwardly-bent, make to be connected more reliably between embedded bar and the track board concrete that embedded bar 2 adopts hot rolled ribbed steel bars; Junction plate 1 opposite side adopts welding manner to be fixed with shear plate 3, wherein, described embedded bar 2 and junction plate 1 are embedded in track plate 7 concrete in advance, and the one side that described junction plate 1 is connected with shear plate 3 exposes to described groove 8 bottoms, and described shear plate 3 exposes to track plate 7 ends; Described shear plate 3 one sides are provided with tooth 6, the teeth groove direction of described tooth 6 is vertical with junction plate 1, when variations in temperature occurring, when longitudinal-connecting type track slab expands with heat and contract with cold, the tooth that engagement is vertically arranged because of the shear plate of adjacent longitudinal-connecting type track slab, this tooth can slide along the teeth groove direction, thereby the reliability that connects between the assurance track plate, the teeth groove 6-1 of tooth 6 can adopt V-type or other teeth groove structures, and tooth top 6-2 is the plane, and the plane is concentrated in order to prevent stress, also be provided with two connecting holes 4 on the described shear plate 3, this connecting hole adopts bar hole, and shear device is installed on the railway plate die when making for the ease of the track plate, also is provided with installing hole 5 on the junction plate.
Described longitudinal track plate connection method comprises the steps:
In turn in advance be layered on roadbed on along the track circuit head and the tail longitudinal-connecting type track slab 7;
As shown in Figure 7, the face that the shear plate 3 of the shear device that is equipped with on the adjacent two longitudinal-connecting type track slab longitudinal terminal surface grooves 8 is provided with tooth 6 is placed in opposite directions, after adjusting these adjacent two longitudinal-connecting type track Board positions, make that the tooth 6 of the shear plate 3 of setting is meshing with each other in opposite directions, pass connecting hole 4 on the shear plate 3 with connecting bolt 11, and, make the longitudinal centre line of these adjacent two longitudinal-connecting type track slabs satisfy the requirement of track laying simultaneously with the shear plate locking of nut 12 with described pairing.
The present invention is particularly useful for laying on the roadbed situation of track plate.
The method that shear plate is connected with a joggle by tooth between the setting of the shear device of this longitudinal-connecting type track slab and the two track plates thereof, the problem that shearing transmits between the track plate when well having solved subgrade settlement.
Disclosed all features in this manual, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this manual (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a longitudinal-connecting type track slab comprises longitudinal-connecting type track slab (7), and track plate (7) end is provided with groove (8), it is characterized in that: cushion cap (10) table top of described track plate (7) is provided with 1: 38～1: 42 rail cant (9); Described groove is embedded with shear device on (8), this shear device comprises junction plate (1), junction plate (1) one side is fixed with embedded bar (2), junction plate (1) opposite side is fixed with shear plate (3), wherein, described embedded bar (2) and junction plate (1) are embedded in track plate (7) concrete in advance, and the one side that is connected with shear plate (3) of described junction plate (1) exposes to described groove (8) bottom, and described shear plate (3) exposes to track plate (7) end; Described shear plate (3) one side at least is provided with tooth (6), and the teeth groove direction of described tooth (6) is vertical with junction plate (1), also is provided with at least one connecting hole (4) on the described shear plate (3).
2. longitudinal-connecting type track slab according to claim 1 is characterized in that: described embedded bar (2) is a U shaped steel muscle.
3. longitudinal-connecting type track slab according to claim 2 is characterized in that: the end of described U shaped steel muscle is outwardly-bent.
4. according to claim 1 or 2 or 3 described longitudinal-connecting type track slabs, it is characterized in that: described embedded bar (2) adopts hot rolled ribbed steel bar.
5. according to claim 1 or 2 or 3 described longitudinal-connecting type track slabs, it is characterized in that: described connecting hole (4) is a bar hole.
6. according to any described longitudinal-connecting type track slab in the claim 1 to 3, it is characterized in that: described tooth (6) teeth groove (6-1) is V-type, and tooth top (6-2) is the plane.
7. according to any described longitudinal-connecting type track slab in the claim 1 to 3, it is characterized in that: described embedded bar (2) is fixed on junction plate (1) one side with welding manner, and described shear plate (3) is fixed on junction plate (1) opposite side with welding manner.
8. according to any described longitudinal track plate connection method of claim 1 to 7, it is characterized in that: comprise the steps:
In turn in advance be layered on roadbed on along the track circuit head and the tail longitudinal-connecting type track slab;
The face that the shear plate (3) of the shear device that is equipped with on the adjacent two longitudinal-connecting type track slab longitudinal terminal surface grooves (8) is provided with tooth (6) is placed in opposite directions, after adjusting these adjacent two longitudinal-connecting type track Board positions, make that the tooth (6) of the shear plate (3) of setting is meshing with each other in opposite directions, pass connecting hole (4) on the shear plate (3) with connecting bolt (11), and, make the longitudinal centre line of these adjacent two longitudinal-connecting type track slabs satisfy the requirement of track laying simultaneously with nut (12) locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910258958XA CN101768898B (en) | 2009-12-31 | 2009-12-31 | Longitudinally connected rail plates and connecting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910258958XA CN101768898B (en) | 2009-12-31 | 2009-12-31 | Longitudinally connected rail plates and connecting method thereof |
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| Publication Number | Publication Date |
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| CN101768898A CN101768898A (en) | 2010-07-07 |
| CN101768898B true CN101768898B (en) | 2011-09-14 |
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| CN200910258958XA Active CN101768898B (en) | 2009-12-31 | 2009-12-31 | Longitudinally connected rail plates and connecting method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102535272B (en) * | 2012-01-05 | 2014-08-20 | 中铁二局股份有限公司 | Construction method for post-stretched pre-stress longitudinal connection of road bed track slabs |
| CN102587223A (en) * | 2012-03-30 | 2012-07-18 | 中铁二十三局集团轨道交通工程有限公司 | Composite precast concrete rail plate |
| CN109914163B (en) * | 2019-03-14 | 2024-01-05 | 中铁二院工程集团有限责任公司 | Prefabricated plate type magnetic levitation composite track structure and construction method thereof |
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