CN202107952U - Post tensioned prestressed track slab of ballastless track - Google Patents
Post tensioned prestressed track slab of ballastless track Download PDFInfo
- Publication number
- CN202107952U CN202107952U CN2011201848787U CN201120184878U CN202107952U CN 202107952 U CN202107952 U CN 202107952U CN 2011201848787 U CN2011201848787 U CN 2011201848787U CN 201120184878 U CN201120184878 U CN 201120184878U CN 202107952 U CN202107952 U CN 202107952U
- Authority
- CN
- China
- Prior art keywords
- plate
- track
- longitudinal
- plate body
- track plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Reinforcement Elements For Buildings (AREA)
Abstract
The utility model discloses a post tensioned prestressed track slab of a ballastless track, which belongs to a technical field of a track slab of a ballastless track and includes a track slab body; grooves are provided on longitudinal end parts of the track slab body; the grooves on two ends of the slab body are symmetrically arranged with respect to a transverse center line of the slab body; longitudinal post tensioned prestressed steel bars are provided in the slab body; a coating layer is provide on an outer surface of the longitudinal post tensioned prestressed steel bar; the end parts of the longitudinal post tensioned prestressed steel bar are anchored on the end parts of the slab body; and the longitudinal post tensioned prestressed steel bars are symmetrically disposed with respect to a longitudinal center line of the slab body. A structural load-carrying system of the slab is substantially changed as a self-compaction concrete is filled under the slab when the slab is in use. According to the utility model, a transverse post tensioned prestressed steel bar in the conventional track slab is eliminated, thereby saving raw material, simplifying manufacturing procedure and reducing track slab cost; and more importantly, rigidity of the track slab is enhanced and longitudinal ductility and crack resistance of the track slab are reinforced.
Description
Technical field
The utility model relates to a kind of track plate that non-fragment orbit rail and fastener system thereof are installed, and especially relates to the novel track plate of using on a kind of non-fragment orbit.
Background technology
The non-fragment orbit that adopts at present all is provided with horizontal and vertical prestressed reinforcement (as shown in Figure 1) with the inside prestressed reinforcement of track plate; Longitudinal prestressing reinforcing bar 1 ' among Fig. 1 is installed on vertical anchor recess hole 2 ' of plate body longitudinal terminal surface; Transverse prestressed reinforcing steel bar 4 ' is installed on the horizontal anchor recess hole 3 ' of plate body transverse end surface; Horizontal and vertical reinforcing bar layered arrangement makes that the stress layout of plate body is even, thereby improves the rigidity of plate body.But find through engineering practice; When installing to the track plate; Supporting bed between track plate and the roadbed was replaced by after the better self-compacting concrete of performance by former emulsified asphalt slurry; Make supporting bed form composite plate structure, cause the rigidity of composite plate itself to increase, thereby influence the application life of track plate with the track plate.
The utility model content
The purpose of the utility model provides a kind of simple in structure, and construction speed is fast; Good endurance, longer service life, the non-fragment orbit post-tensioned prestressing track plate that cost is lower.
The technical scheme of the utility model is: a kind of non-fragment orbit post-tensioned prestressing track plate; Comprise track plate plate body; Track plate plate body longitudinal end is provided with groove; The groove at said plate body two ends is symmetrical set about the cross central line of plate body, is provided with posttension longitudinal prestressing reinforcing bar in the said plate body, and said posttension longitudinal prestressing reinforcing bar external surface is provided with integument; The end anchorage of said posttension longitudinal prestressing reinforcing bar is in the plate body end, and said posttension longitudinal prestressing reinforcing bar is symmetrical set with respect to the plate body longitudinal centre line.
The posttension longitudinal prestressing reinforcing bar that the utility model adopts refers to when the track plate is made, and the prestressed reinforcement outside is coated with integument; And then the track plate carried out concreting, maintenance or the like; The effect of integument is to make the small space of formation between concrete and the prestressed reinforcement; Be convenient to the stretch-draw in the subsequent handling, treat that the track plate completes after, just formed micro gap between concrete and the prestressed reinforcement; At last prestressed reinforcement is carried out stretch-draw, anchoring and sealing off and covering anchorage, its stretch-draw, anchoring and sealing off and covering anchorage technology adopt existing technological means to realize.
Need to prove; It vertically also is that the track plate gets on the right track the bearing of trend of circuit for vertically that the utility model is made as the direction of the rail of installing on the track plate; The longitudinal centre line of said track plate plate body is meant along the center line of plate face longitudinal direction, this center line and track circuit central lines.The direction vertical with rail is that laterally said plate body cross central line is meant that along the center line of plate face horizontal direction, this center line is vertical with the track circuit center line on the track plate.
When the groove number of the said plate body of the utility model end was one, said groove was located at the middle part of plate body longitudinal terminal surface; When the groove number of said plate body end was two, said two grooves were symmetrical set with respect to the plate body longitudinal centre line.This structure makes that the plate body performance is consistent longitudinally on the track plate.
Be embedded with shear device on the said groove of the utility model; This shear device comprises junction plate, and junction plate one side is fixed with embedded bar, and the junction plate opposite side is fixed with shear plate; Wherein, Said embedded bar and junction plate are pre-buried in the track board concrete, and the one side that said junction plate is connected with shear plate exposes to said bottom portion of groove, and said shear plate exposes to track plate end; Said shear plate one side at least is provided with tooth, and the teeth groove direction of said tooth is vertical with junction plate, also is provided with at least one connecting hole on the said shear plate.The purpose of said shear device is that each track plate head and the tail are coupled together in order; Can guarantee longitudinal-connecting type track slab shear stress on the roadbed effective transmission, be distributed on the tracks adjacent plate; Effectively reduce train wheel to the effect of the alternating stresses that forms, prevent to be fractureed because of subgrade settlement causes track plate end to track plate end.Change in displacement when each track plate of non-fragment orbit expands with heat and contract with cold through connecting the stress that transmits circuit between the longitudinal reinforcement separately, can't overcoming the track plate in the prior art can not reduce the effect of normal pressure to track plate end.
Said embedded bar is a U shaped steel muscle.Make be connected between embedded bar and the track board concrete more firm.
The end of said U shaped steel muscle is outwardly-bent.This structure has further been strengthened closely being connected between embedded bar and the track board concrete.
Said embedded bar adopts hot rolled ribbed steel bar.Hot rolled ribbed steel bar can be so that combining of reinforcing bar and plate body inner concrete be tightr.
Said 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.
Said embedded bar is fixed on junction plate one side with welding manner, and said 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.
The support rail position respectively is provided with a row above the said track plate plate body has a grade shoulder cushion cap, and said two rows have a grade shoulder cushion cap to be symmetrical set about the plate body longitudinal centre line.Said have a grade shoulder cushion cap to be used for installing rail and fastener system thereof, and this symmetrical structure helps the application life of plate body and the security of operation of locomotive.
Said track plate plate body bottom surface is embedded with at least two row's rectangle reinforcing bars along the longitudinal direction, and rectangle reinforcing bar lower end is exposed to outside the track plate plate body.It is outward that the track plate forms the structure that is equivalent to composite plate with supporting bed for the ease of combining closely between track construction process middle orbit plate and the supporting bed self-compacting concrete below it that rectangle reinforcing bar lower end is exposed to track plate plate body.
Said every row's rectangle reinforcing bar edge is near plate body longitudinal edge positional alignment.Make the track plate with its under the self-compacting concrete supporting bed combine tightr, more firm.
The longitudinal length of said track plate is 5350mm, 4856mm, 5600mm.
The integument that said integument adopts high-density polyethylene material to process.In general, select for use the density of pe scope to be not less than 0.948g/cm for its density
3
Need to prove; Track plate about non-fragment orbit has obtained using widely; These track plates all have transverse prestressed reinforcing steel bar and longitudinal prestressing reinforcing bar; After the self-compacting concrete supporting bed of track plate and its underpart forms complex, make that the rigidity of composite orbit plated construction is excessive.The contribution of the utility model is to remain on suitable scope for the rigidity with track; Relatively cancelled horizontal post-tensioned prestressed reinforcement with original track plate; After the self-compacting concrete supporting bed of this track plate and its underpart forms complex; The rigidity of track reaches designing requirement, and other performance parameters of plate body adhere to specification.The cancellation transverse prestressed reinforcing steel bar has reduced operation, improves the make efficiency of track plate, and amount of reinforcement reduces simultaneously, has reduced cost of manufacture.
The technique effect of the utility model is: cancelled transverse prestressed reinforcing steel bar, saved raw material, also simplified the operation of making simultaneously; The more important thing is the rigidity of having improved the track plate, increased vertical ductility of track plate.
Description of drawings
The utility model will explain through example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is a prestressed reinforcement structures arranged sketch map in the existing track plate;
Fig. 2 is the structural representation of the utility model;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is the B-B sectional view of Fig. 3;
Fig. 5 is the prestressed reinforcement arrangement sketch map of Fig. 3;
Fig. 6 is a shear device structural representation among Fig. 2;
Fig. 7 is the vertical view of Fig. 6;
Fig. 8 is the A-A partial sectional view of Fig. 6;
Wherein, Reference numeral is: wherein, Reference numeral is: among Fig. 1,1 ' is the longitudinal prestressing reinforcing bar, and 2 ' is vertical anchor recess hole, and 4 ' is transverse prestressed reinforcing steel bar, and 3 ' is horizontal anchor recess hole;
Among Fig. 2 to Fig. 8,1 is plate body, and 1-1 is the plate body cross central line, and 1-2 is the plate body longitudinal centre line, and 2 are posttension longitudinal prestressing reinforcing bar; 3 is groove, and 4 is junction plate, and 5 is embedded bar, and 6 is shear plate, and 7 is tooth; 7-1 is a teeth groove, and 7-2 is a tooth top, and 8 is connecting hole, and 9 is the rectangle reinforcing bar; 10 for there being a grade shoulder cushion cap, and 11 is installing hole, and 12 is integument, and 13 is the anchor recess hole.
The specific embodiment
Disclosed all characteristics in this manual, or the step in disclosed all methods or the process except mutually exclusive characteristic and/or the step, all can make up by any way.
Disclosed arbitrary characteristic in this manual (comprising any accessory claim, summary and accompanying drawing) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.
Extremely shown in Figure 8 like Fig. 2; A kind of non-fragment orbit post-tensioned prestressing track plate; Comprise track plate plate body 1, track plate plate body 1 longitudinal end is provided with groove 3, and the groove 3 at said plate body two ends is symmetrical set about the cross central line of plate body; Be provided with posttension longitudinal prestressing reinforcing bar 2 in the said plate body 1; Said posttension longitudinal prestressing reinforcing bar 2 external surfaces are provided with integument 12, and the end anchorage of said posttension longitudinal prestressing reinforcing bar 2 is in the anchor recess hole 13 of plate body 1 end, and said posttension longitudinal prestressing reinforcing bar 2 is symmetrical set with respect to the plate body longitudinal centre line.
Be provided with posttension longitudinal prestressing reinforcing bar 2 in the said plate body 1, posttension longitudinal prestressing reinforcing bar 2 outsides are coated with integument 12, and said integument adopts high-density polyethylene material.In general, select for use the density of pe scope to be not less than 0.948g/cm for its density
3, said elder generation opens longitudinal prestressing reinforcing bar 2 and is symmetrical set with respect to the plate body longitudinal centre line, has contactless between the concrete in said posttension longitudinal prestressing reinforcing bar 2 and the plate body 1.
Be embedded with shear device on the said groove 3; This shear device comprises junction plate 4; Junction plate 4 one sides adopt welding manner to be fixed with embedded bar 5, and embedded bar 5 is a U shaped steel muscle, and the end of U shaped steel muscle is outwardly-bent; Embedded bar 5 adopts hot rolled ribbed steel bar, and this structure of embedded bar is to be convenient to combine tightr with the plate body concrete; Junction plate 4 opposite sides adopt welding manner to be fixed with shear plate 6; Wherein, Said embedded bar 5 is pre-buried in track plate 1 concrete with junction plate 4; And the one side that said junction plate 4 is connected with shear plate 6 exposes to said groove 3 bottoms, and said shear plate 6 exposes to track plate 1 end, is for the vertical connection between the adjacent orbit plate; Said shear plate 6 one sides are provided with tooth 7, and the teeth groove direction of said tooth 7 is vertical with junction plate 4, when appearance temperature changes; 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 the reliability that connects between the assurance track plate, the teeth groove 7-1 of tooth 7 is a V-type, tooth top 7-2 is the plane; Also be provided with two connecting holes 8 on the said shear plate 6; 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 11 on the junction plate.
Being provided with two rows above the said track plate plate body 1 has a grade shoulder cushion cap 10, and every row's cushion cap is positioned at the support rail position above the track plate, and said two rows have a grade shoulder cushion cap 10 to be symmetrical set about the plate body longitudinal centre line.It is to be used for installing rail that grade effect of shoulder cushion cap is arranged.
Said track plate plate body 1 bottom surface marginal position along the longitudinal direction respectively is embedded with row's rectangle reinforcing bar 9, and rectangle reinforcing bar 9 lower ends are exposed to outside the track plate plate body 1.It is that self-compacting concrete for the supporting bed below the track plate is closely linked that said rectangle reinforcing bar 9 lower ends are exposed to track plate plate body 1 outer.
The longitudinal length of the plate of track described in the present embodiment is 5350mm, and also can select length as required is 4856mm, or 5600mm, the perhaps length of other permissions.
Need to prove that the groove number of said plate body end also can be one, at this moment, said groove is located at the middle part of plate body two longitudinal terminal surfaces.
The utility model is not limited to the aforesaid specific embodiment.The utility model expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (13)
1. non-fragment orbit post-tensioned prestressing track plate; Comprise track plate plate body (1); Track plate plate body (1) longitudinal end is provided with groove (3), and the groove (3) at said plate body two ends is symmetrical set about the cross central line of plate body, it is characterized in that; Be provided with posttension longitudinal prestressing reinforcing bar (2) in the said plate body (1); Said posttension longitudinal prestressing reinforcing bar (2) external surface is provided with integument (12), and the end anchorage of said posttension longitudinal prestressing reinforcing bar (2) is in plate body (1) end, and said posttension longitudinal prestressing reinforcing bar (2) is symmetrical set with respect to the plate body longitudinal centre line.
2. a kind of non-fragment orbit post-tensioned prestressing track plate according to claim 1 is characterized in that when groove (3) number of said plate body end was one, said groove (3) was located at the middle part of plate body longitudinal terminal surface; When groove (3) number of said plate body end was two, said two grooves (3) were symmetrical set with respect to the plate body longitudinal centre line.
3. a kind of non-fragment orbit post-tensioned prestressing track plate according to claim 2; It is characterized in that said groove is embedded with shear device on (3), this shear device comprises junction plate (4); Junction plate (4) one sides are fixed with embedded bar (5); Junction plate (4) opposite side is fixed with shear plate (6), and wherein, said embedded bar (5) and junction plate (4) are pre-buried in track plate (1) concrete; And the one side that said junction plate (4) is connected with shear plate (6) exposes to said groove (3) bottom, and said shear plate (6) exposes to track plate (1) end; Said shear plate (6) one side at least is provided with tooth (7), and the teeth groove direction of said tooth (7) is vertical with junction plate (4), also is provided with at least one connecting hole (8) on the said shear plate (6).
4. a kind of non-fragment orbit post-tensioned prestressing track plate according to claim 3, it is characterized in that: said embedded bar (5) is a U shaped steel muscle.
5. a kind of non-fragment orbit post-tensioned prestressing track plate according to claim 4, it is characterized in that: the end of said U shaped steel muscle is outwardly-bent.
6. a kind of non-fragment orbit post-tensioned prestressing track plate according to claim 5 is characterized in that: said embedded bar (5) adopts hot rolled ribbed steel bar.
7. a kind of non-fragment orbit post-tensioned prestressing track plate according to claim 6, it is characterized in that: said connecting hole (8) is a bar hole.
8. a kind of non-fragment orbit post-tensioned prestressing track plate according to claim 7; It is characterized in that: said embedded bar (5) is fixed on junction plate (4) one sides with welding manner, and said shear plate (6) is fixed on junction plate (4) opposite side with welding manner.
9. according to any described a kind of non-fragment orbit post-tensioned prestressing track plate of claim 1 to 8; It is characterized in that: the support rail position respectively is provided with a row above the said track plate plate body (1) has a grade shoulder cushion cap (10), and said two rows have a grade shoulder cushion cap (10) to be symmetrical set about the plate body longitudinal centre line.
10. a kind of non-fragment orbit post-tensioned prestressing track plate according to claim 9; It is characterized in that: said track plate plate body (1) bottom surface is embedded with at least two row's rectangle reinforcing bars (9) along the longitudinal direction, and rectangle reinforcing bar (9) lower end is exposed to outside the track plate plate body (1).
11. a kind of non-fragment orbit post-tensioned prestressing track plate according to claim 10 is characterized in that: said every row's rectangle reinforcing bar (9) edge is near plate body longitudinal edge positional alignment.
12. a kind of non-fragment orbit post-tensioned prestressing track plate according to claim 11, it is characterized in that: the longitudinal length of said track plate is 5350mm, or 4856mm, or 5600mm.
13. a kind of non-fragment orbit post-tensioned prestressing track plate according to claim 12 is characterized in that: the integument that said integument (12) adopts high-density polyethylene material to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201848787U CN202107952U (en) | 2011-06-02 | 2011-06-02 | Post tensioned prestressed track slab of ballastless track |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201848787U CN202107952U (en) | 2011-06-02 | 2011-06-02 | Post tensioned prestressed track slab of ballastless track |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202107952U true CN202107952U (en) | 2012-01-11 |
Family
ID=45433395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201848787U Expired - Lifetime CN202107952U (en) | 2011-06-02 | 2011-06-02 | Post tensioned prestressed track slab of ballastless track |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202107952U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296491A (en) * | 2011-06-02 | 2011-12-28 | 中铁二十三局集团有限公司 | Post-tensioned prestressed track board of non-ballast track |
-
2011
- 2011-06-02 CN CN2011201848787U patent/CN202107952U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296491A (en) * | 2011-06-02 | 2011-12-28 | 中铁二十三局集团有限公司 | Post-tensioned prestressed track board of non-ballast track |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9222225B2 (en) | Pre-stressed concrete track slab of slab-type ballast-less track | |
| CN104929034B (en) | A kind of modularization steel reinforced concrete rapid construction small box girder bridge and its construction method | |
| CN202416148U (en) | Bridge structure of pre-stressed concrete hollow slabs | |
| CN105887586A (en) | Low implantation line double-wire section terminal spine type bearing rail beam limiting structure in medium and low speed magnetic levitation transportation engineering | |
| WO2017185917A1 (en) | Inter-segment limiting structure having clawed ends for track-bearing beam in single track section of low-set line of mid-to-low speed magnetic levitation transportation project | |
| CN201883346U (en) | Prestressed concrete track slab of slab-type ballastless track | |
| CN107724188A (en) | A kind of prefabricated floating plate railway roadbed vibrating isolation system | |
| CN208235312U (en) | Precast segment assembly bridge pier | |
| CN103374865B (en) | Construction method for longitudinally connecting and laying ballastless track slabs | |
| CN203890866U (en) | Construction auxiliary beam | |
| CN202064239U (en) | Embedded telescoping type concrete turnout board | |
| CN201915299U (en) | Pretensioned prestressed concrete track slab of slab ballastless track | |
| CN202107951U (en) | Pre-tensioned prestressing track slab for ballastless track | |
| CN202107952U (en) | Post tensioned prestressed track slab of ballastless track | |
| CN202830761U (en) | Railway steel truss girder bridge ballastless track laying structure | |
| CN202323563U (en) | Post-tensioned prestressed rail composite plate | |
| CN102296491A (en) | Post-tensioned prestressed track board of non-ballast track | |
| CN203546516U (en) | Longitudinal continuous limit ballastless track on steel truss girder bridge | |
| CN208009170U (en) | Plate-type ballastless track on a kind of steel truss girder bridge | |
| CN202323564U (en) | Pretensioning type prestress track composite plate | |
| CN202194031U (en) | Large unit type track plate for ballastless tracks | |
| CN206385393U (en) | Non-fragment orbit | |
| CN102296492A (en) | Pre-tensioned prestressed track board of non-ballast track | |
| CN201433333Y (en) | Built-in barricade type slab ballastless track | |
| CN202107953U (en) | Rear-expansion type rail board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120111 |
|
| CX01 | Expiry of patent term |