CN110184912A - A kind of rail slab and girder system and production method - Google Patents
A kind of rail slab and girder system and production method Download PDFInfo
- Publication number
- CN110184912A CN110184912A CN201910480826.5A CN201910480826A CN110184912A CN 110184912 A CN110184912 A CN 110184912A CN 201910480826 A CN201910480826 A CN 201910480826A CN 110184912 A CN110184912 A CN 110184912A
- Authority
- CN
- China
- Prior art keywords
- rail
- plate body
- post
- girder system
- slab
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 238000005266 casting Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 210000002435 tendon Anatomy 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/28—Concrete reinforced prestressed
Abstract
The present invention relates to a kind of rail slab and girder system and production methods, belong to track and technical field of bridge engineering, including plate body, and longitudinal post-tensioned prestressing duct is reserved in plate body；There is the rail support groove for being used to be embedded in rail being recessed in plate body top surface, and rail support groove longitudinally runs through the both ends of the surface of plate body, and rail support groove parallel interval is equipped with two；There are at least two groups in post-tensioned prestressing duct, and there is one group of longitudinal direction post-tensioned prestressing duct in the lower section of two rail support grooves respectively.Track function and bridge function are combined into one by the present invention, are not merely compriseed simply, and can reduce construction cost, are a kind of superstructures of completely new bridge；Longitudinal direction post-tensioned prestressing duct is reserved in plate body, is worn prestressing tendon by interior, is applied prestressing force in advance in plate body, to resist train impact load；And the present invention can provide rail continuous support, consume the vibration source of the overwhelming majority, keep train operation smooth, extend the service life of rail and train.
Description
Technical field
The present invention relates to track and technical field of bridge engineering more particularly to a kind of rail slab and girder system and producers
Method.
Background technique
Railroad bridge is railway across river, lake, straits, mountain valley or other barriers, and to realize rail track
Crossings on different level with rail track or road and the structures built.It is beam bridge that railroad bridge, which uses at most,.It is a kind of
Most popular bridge pattern, can be subdivided into simply supported girder bridge, continuous bridge and cantilever glider bridge.
Plate-girder is the superstructure of bridge.Bridge, due to the effect of the loads such as train, can generate one downwards after building up
Displacement, this displacement is also amount of deflection；This will lead to the practical elevation of bridge floor and is not inconsistent with elevation when design.In order to eliminate or reduce
The degree not being consistent needs to be arranged a pre- arch, that is, allows bridge to do high certain height upwards during construction, allow and build up
A bridge elevation numerical value higher than design altitude, on such rail vehicle after bridge, bridge floor height can be with design altitude base
This is consistent.
Moreover, existing railroad bridge, track plates are track plates, and plate-girder is plate-girder, and structure is complicated, and construction cost is high.
In addition, existing plate-type ballastless track is all made of multiple spaced fastener systems to fix rail, these are detained
Part system gives rail to provide intermittent supporting point, this is cause railroad track vibration source and Rail Surface Short wave irregularity main
Reason.Short wave irregularity makes rail and serious wear of wheel, and if things go on like this, wheel is damaged into polygon, thus needs are periodically right
Rail and wheel are polished, otherwise by the comfort of extreme influence train operation, safety and unstable；Moreover, often beating
Mill can also shorten the service life of rail and wheel.
Summary of the invention
The present invention is intended to provide a kind of rail slab and girder system and production method, the rail slab and girder system longitudinal direction bending resistance,
Tensile capacity is strong, and track function and bridge function are combined into one, and constitutes simply, can reduce construction cost, while again can be to steel
Rail provides continuous support, conducive to the service life for extending rail and train.
In order to achieve the above objectives, The technical solution adopted by the invention is as follows:
A kind of rail slab and girder system, including plate body are reserved with longitudinal post-tensioned prestressing duct in the plate body.
Further, there is the rail support groove for being used to be embedded in rail being recessed in the plate body top surface, and the rail support groove is longitudinal
Through the both ends of the surface of plate body, rail support groove parallel interval is equipped with two.
Further, there are at least two groups in post-tensioned prestressing duct, and there is one group of longitudinal direction post-tensioning in the lower section of two rail support grooves respectively
Prestressed pore passage.
Preferably, two groups of post-tensioned prestressing ducts below two rail support grooves are symmetrical arranged.
It is further preferred that post-tensioned prestressing duct shares 4-6.
Further, plate body side is provided with pre-buried emepalcement casing and the fixed pipe sleeve of third rail bracket.
Further, the both ends of plate body have and the limit matched constraint notch of convex block machine.
Preferably, it is 4.8m-9.8m that the length of plate body, which is length,.
It is further preferred that plate body with a thickness of 400mm~700mm.
The production method of above-mentioned rail slab and girder system, comprising the following steps:
Step a binds the reinforcement cage skeleton of plate body, is incorporated to punching block；
Step b, the corresponding position in the post-tensioned prestressing duct install bellows+bushing pipe, and bushing pipe goes out side and touches, and installs
Pre-buried pipe sleeve；
Step c, casting concrete extract bushing pipe, and continue steam curing after concrete initial set；
Step d, demoulding, hangs out, and examines.
Compared with prior art, the invention has the following advantages:
1, track function and bridge function are combined into one by the present invention, are not merely compriseed simply, and can reduce construction cost,
It is a kind of superstructure of completely new bridge；Longitudinal direction post-tensioned prestressing duct is reserved in plate body, by wearing prestressing force in it
Beam applies pre-tensile stress to prestressing tendon, to apply prestressing force in advance in plate body, so that plate body before train operation
Compression is born, and then it is made to generate certain deformation, to resist train impact load, improves its bending resistance and rigidity.
2, the present invention is reserved with the rail support groove of indent in plate body top surface, and rail is directly inlaid in rail support groove, can be to steel
Rail provides continuous support, consumes the vibration source of the overwhelming majority, keeps train operation smooth, extends the service life of rail and train.
Detailed description of the invention
Fig. 1 is the main view of plate body；
Fig. 2 is the top view of plate body；
Fig. 3 is the left view of plate body；
In figure: 1- plate body, 2- post-tensioned prestressing duct, 3- rail support groove, the pre-buried emepalcement casing of 4-, 5- constraint notch, 6- the
Three rail brackets fix pipe sleeve.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing, to the present invention into
Row is further described.
As shown in Figure 1, 2, 3, rail slab and girder system disclosed by the invention, it includes plate body 1, is reserved in plate body 1 vertical
To post-tensioned prestressing duct 2.The number in post-tensioned prestressing duct 2 is set as needed.By in longitudinal post-tensioned prestressing duct 2
Prestressing tendon is inside worn, in plate body 1 before by external force, pre-tensile stress is applied to prestressing tendon, to apply in advance in plate body 1 pre-
Stress so that plate body 1 bears compression, and then makes it generate certain deformation, to improve its bending resistance and rigidity.This implementation
Plate body 1 is hollowed-out board in example, and when needing to install rack rails, plate body 1 is solid slab.
When above-mentioned plate body 1 is used for railroad bridge, to avoid Short wave irregularity, 1 top surface of plate body has what is be recessed to be used for
It is embedded in the rail support groove 3 of rail, the longitudinal both ends of the surface for running through plate body 1 of rail support groove 3,3 parallel interval of rail support groove is equipped with two.This is specific
" top surface " in embodiment refers to upper surface when plate body 1 is installed and used.Post-tensioned prestressing duct 2 has two groups, and two groups longitudinal
Post-tensioned prestressing duct 2 is located at the lower section of a wherein rail support groove 3.Two groups of post-tensioned prestressing ducts 2 are symmetrical arranged, post-tensioning
Prestressed pore passage 2 shares 6.Certainly, post-tensioned prestressing duct 2 may be alternatively provided as 3 groups, four groups of even more, but two support rails
The lower section of slot 3 should respectively have one group.In use, rail is directly inlaid in rail support groove 3, continuous support can be provided rail, disappeared
The vibration source for consuming the overwhelming majority, keeps train operation smooth, extends the service life of rail and train.It is provided in 1 side of plate body pre-
Bury emepalcement casing 4 and the fixed pipe sleeve 6 of third rail bracket.
The both ends of plate body 1 have with the limit matched constraint notch 5 of convex block machine, constraint notch 5 be it is semicircle, by will about
Beam notch 5 and limit convex block machine assembly, can limit single plate body 1, and convenient for multiple plate bodys 1 are continuous assembled.
The size of plate body 1 is set as needed, the thickness of plate body 1 and its length direct proportionality.In present embodiment
The length of plate body 1 be 4.8m-9.8m, plate body 1 with a thickness of 400~700mm.In addition, present embodiment additionally provide thickness with
The relation table of length, is shown in Table 1.
Table 1
| Track plate is long (mm) | Track plates plate thickness (mm) |
| 4800 | 400 |
| 5800 | 450 |
| 6800 | 500 |
| 7800 | 580 |
| 8800 | 650 |
| 9800 | 700 |
The production method of above-mentioned rail slab and girder system disclosed by the invention needs to produce early period matched with plate body 1
Then steel model is produced according to the following steps:
Step a binds the reinforcement cage skeleton of plate body 1, is incorporated to punching block；
Step b, the corresponding position in post-tensioned prestressing duct 2 install bellows+bushing pipe or other pipelines, bushing pipe or other
Pipeline goes out side and touches.The lower surface when upper surface of plate body 1 during installation is prefabricated has the one of rail support groove 3 face-down.Plate body 1 exists
Inverted camber is set when prefabricated, the pipeline of 2 corresponding position of post-tensioned prestressing duct installation sets same inverted camber.The post-tensioning of plate body longitudinal direction is pre-
Stress duct 2 has 4-6.Changed according to the length of plate body 1, the number in longitudinal post-tensioned prestressing duct 2 can be increased or decreased.
Step c, casting concrete extract bushing pipe, and continue steam curing after concrete initial set；
Step d, demoulding, hangs out rail plate-girder, is verified.The spatial position for taking out bushing pipe, i.e., in the home position of bushing pipe
Place forms post-tensioned prestressing duct 2, completes the production of plate body 1.
After plate body 1 completes, subsequent progress prestressed stretch-draw and continue to conserve.Specific step is as follows；
Step 1, prestressing tendon is worn in post-tensioned prestressing duct 2；
Step 2, using jack tension prestressing tendon, when tensioning, plate body 1 is that reverse side is placed, and has the one side of rail support groove 3
Downward.After the completion of tensioning, sealing off and covering anchorage is carried out using macromolecule concrete.Make the arch 5mm-10mm in advance of plate body 1 by prestressed stretch-draw.
Step 3, the rail plate-girder after sealing off and covering anchorage hang in water support pond, continue water support and natural curing.
The present invention provides a kind of superstructure of completely new bridge, track function and bridge function is combined into one, not only
It constitutes simply, and construction cost can be reduced.Longitudinal direction post-tensioned prestressing duct is reserved in plate body, by wearing prestressing force in it
Beam applies prestressing force in advance in plate body, so that plate body bears compression, and then it is made to generate certain deformation, when train passes through
Out-of-date, the prestressing tendon inside worn can first resist train impact load.And the present invention can provide rail continuous support, be conducive to column
Vehicle operation is smooth, extends the service life of rail and train.
Certainly, the present invention can also have other numerous embodiments, without deviating from the spirit and substance of the present invention,
Those skilled in the art can make various corresponding changes and modifications, including non-frame plate, but these according to the present invention
Corresponding changes and modifications all should fall within the scope of protection of the appended claims of the present invention.
Claims (10)
1. a kind of rail slab and girder system, it is characterised in that: including plate body, longitudinal post-tensioned prestressing hole is reserved in the plate body
Road, longitudinal post-tensioned prestressing duct have camber.
2. rail slab and girder system according to claim 1, it is characterised in that: there is the use being recessed in the plate body top surface
In the rail support groove for being embedded in rail, the rail support groove longitudinally runs through the both ends of the surface of plate body, and rail support groove parallel interval is equipped with two.
3. rail slab and girder system according to claim 2, it is characterised in that: there are at least two groups in post-tensioned prestressing duct,
There is one group of longitudinal direction post-tensioned prestressing duct in the lower section of two rail support grooves respectively.
4. rail slab and girder system according to claim 3, it is characterised in that: two groups of post-tensionings below two rail support grooves are pre-
Stress duct is symmetrical arranged.
5. rail slab and girder system according to claim 1,2,3 or 4, it is characterised in that: post-tensioned prestressing duct is shared
4-6.
6. rail slab and girder system according to claim 1, it is characterised in that: plate body side is provided with pre-buried emepalcement casing
With the fixed pipe sleeve of third rail bracket.
7. rail slab and girder system according to claim 1, it is characterised in that: the both ends of plate body have and limit convex block machine
Matched constraint notch.
8. rail slab and girder system according to claim 1, it is characterised in that: the length of plate body is 4.8m-9.8m.
9. rail slab and girder system according to claim 1 or 8, it is characterised in that: plate body with a thickness of 400mm~
700mm。
10. the production method of rail slab and girder system according to claim 1 to 9, it is characterised in that: including
Following steps:
Step a binds the reinforcement cage skeleton of plate body, is incorporated to punching block；
Step b, the corresponding position in the post-tensioned prestressing duct install bellows+bushing pipe, and bushing pipe goes out side and touches, and installs pre-buried
Casing；
Step c, casting concrete extract bushing pipe, and continue steam curing after concrete initial set；
Step d, demoulding, hangs out, and examines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910480826.5A CN110184912A (en) | 2019-06-04 | 2019-06-04 | A kind of rail slab and girder system and production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910480826.5A CN110184912A (en) | 2019-06-04 | 2019-06-04 | A kind of rail slab and girder system and production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110184912A true CN110184912A (en) | 2019-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910480826.5A Pending CN110184912A (en) | 2019-06-04 | 2019-06-04 | A kind of rail slab and girder system and production method |
Country Status (1)
| Country | Link |
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| CN (1) | CN110184912A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110616634A (en) * | 2019-10-24 | 2019-12-27 | 成都天府轨谷科技有限公司 | Embedded assembled continuous supporting rail plate beam structure and production method |
| CN110700017A (en) * | 2019-10-24 | 2020-01-17 | 成都天府轨谷科技有限公司 | Construction method of through-type continuous supporting track system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130264394A1 (en) * | 2010-12-17 | 2013-10-10 | Railway Engineering Research Institute Of China Academy Of Railway Science | Pre-stressed concrete track slab of slab-type ballast-less track |
| US20140203094A1 (en) * | 2011-08-31 | 2014-07-24 | Railway Engineering Research Institute of China Academy of Railway Sciences | Ballastless track system |
| CN107217549A (en) * | 2017-07-10 | 2017-09-29 | 中铁第四勘察设计院集团有限公司 | The basic board connecting structure of non-fragment orbit and the non-fragment orbit with the attachment structure |
| WO2019011101A1 (en) * | 2017-07-10 | 2019-01-17 | 中铁第四勘察设计院集团有限公司 | Ballastless track base plate connecting structure and ballastless track having same |
| CN210657995U (en) * | 2019-06-04 | 2020-06-02 | 成都天府轨谷科技有限公司 | Rail plate girder construction system |
-
2019
- 2019-06-04 CN CN201910480826.5A patent/CN110184912A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130264394A1 (en) * | 2010-12-17 | 2013-10-10 | Railway Engineering Research Institute Of China Academy Of Railway Science | Pre-stressed concrete track slab of slab-type ballast-less track |
| US20140203094A1 (en) * | 2011-08-31 | 2014-07-24 | Railway Engineering Research Institute of China Academy of Railway Sciences | Ballastless track system |
| CN107217549A (en) * | 2017-07-10 | 2017-09-29 | 中铁第四勘察设计院集团有限公司 | The basic board connecting structure of non-fragment orbit and the non-fragment orbit with the attachment structure |
| WO2019011101A1 (en) * | 2017-07-10 | 2019-01-17 | 中铁第四勘察设计院集团有限公司 | Ballastless track base plate connecting structure and ballastless track having same |
| CN210657995U (en) * | 2019-06-04 | 2020-06-02 | 成都天府轨谷科技有限公司 | Rail plate girder construction system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110616634A (en) * | 2019-10-24 | 2019-12-27 | 成都天府轨谷科技有限公司 | Embedded assembled continuous supporting rail plate beam structure and production method |
| CN110700017A (en) * | 2019-10-24 | 2020-01-17 | 成都天府轨谷科技有限公司 | Construction method of through-type continuous supporting track system |
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