CN202107953U - Rear-expansion type rail board - Google Patents
Rear-expansion type rail board Download PDFInfo
- Publication number
- CN202107953U CN202107953U CN201120185001XU CN201120185001U CN202107953U CN 202107953 U CN202107953 U CN 202107953U CN 201120185001X U CN201120185001X U CN 201120185001XU CN 201120185001 U CN201120185001 U CN 201120185001U CN 202107953 U CN202107953 U CN 202107953U
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- China
- Prior art keywords
- posttension
- board
- plate body
- track plate
- longitudinal
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Abstract
The utility model discloses a rear-expansion type rail board which belongs to the technical field of rail boards of ballastless rails, and comprises a board body of the rail board. The board body is internally provided with rear-expansion longitudinal prestressed steel, a wrapped layer is arranged on the outer surface of the rear-expansion longitudinal prestressed steel, the end part of the rear-expansion longitudinal prestressed steel is anchored on the end part of the board body, and the rear-expansion longitudinal prestressed steel is symmetrically arranged by corresponding to the longitudinal central line of the board body. When the board is used, self-compaction concrete is filled below the board, so that a structural stress system of the board is changed substantially; compared with the existing rail board, a horizontal rear-expansion longitudinal prestressed steel is eliminated, so that raw material is saved, the manufacturing procedures are simplified, and the cost of the rail board is reduced; and more importantly, the rigidity of the rail board is improved, and the longitudinal extensibility and crank resistance of the rail board are improved.
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 post-tensioned 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 posttension type track plate that cost is lower.
The technical scheme of the utility model is: a kind of posttension type track plate; Comprise track plate plate body; Be provided with posttension longitudinal prestressing reinforcing bar in the said plate body; Said posttension longitudinal prestressing reinforcing bar external surface is provided with integument, and 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.
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; Cancelled transverse prestressed reinforcing steel bar; 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;
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. 5,1 is plate body, and 1-1 is the plate body longitudinal centre line, and 2 are posttension longitudinal prestressing reinforcing bar, and 3 is integument, and 4 for there being a grade shoulder cushion cap, and 5 is the rectangle reinforcing bar, and 6 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 5 like Fig. 2; A kind of posttension type track plate; Comprise track plate plate body 1, 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 3; The end anchorage of said posttension longitudinal prestressing reinforcing bar 2 is in the anchor recess hole 6 of plate body 1 end, and said posttension longitudinal prestressing reinforcing bar 2 is symmetrical set with respect to plate body longitudinal centre line 1-1.
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 3, 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
3Said 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.
Being provided with two rows above the said track plate plate body 1 has a grade shoulder cushion cap 4, 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 4 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 5, and rectangle reinforcing bar 5 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 5 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.
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 (6)
1. posttension type track plate; Comprise track plate plate body (1); 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 (3); 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 posttension type track plate according to claim 1 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 (4), and said two rows have a grade shoulder cushion cap (4) to be symmetrical set about the plate body longitudinal centre line.
3. a kind of posttension type track plate according to claim 2 is characterized in that, said track plate plate body (1) bottom surface is embedded with at least two row's rectangle reinforcing bars (5) along the longitudinal direction, and rectangle reinforcing bar (5) lower end is exposed to outside the track plate plate body (1).
4. a kind of posttension type track plate according to claim 3 is characterized in that: said every row's rectangle reinforcing bar (5) edge is near plate body longitudinal edge positional alignment.
5. a kind of posttension type track plate according to claim 4, it is characterized in that: the longitudinal length of said track plate is 5350mm, or 4856mm, or 5600mm.
6. a kind of posttension type track plate according to claim 5 is characterized in that: the integument that said integument (3) adopts high-density polyethylene material to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120185001XU CN202107953U (en) | 2011-06-02 | 2011-06-02 | Rear-expansion type rail board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120185001XU CN202107953U (en) | 2011-06-02 | 2011-06-02 | Rear-expansion type rail board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202107953U true CN202107953U (en) | 2012-01-11 |
Family
ID=45433396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120185001XU Expired - Lifetime CN202107953U (en) | 2011-06-02 | 2011-06-02 | Rear-expansion type rail board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202107953U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296490A (en) * | 2011-06-02 | 2011-12-28 | 中铁二十三局集团有限公司 | Post-tensioned track board |
-
2011
- 2011-06-02 CN CN201120185001XU patent/CN202107953U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296490A (en) * | 2011-06-02 | 2011-12-28 | 中铁二十三局集团有限公司 | Post-tensioned track board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120111 |