CN102277799A - Steel bar welded wire mesh concrete sleeper - Google Patents
Steel bar welded wire mesh concrete sleeper Download PDFInfo
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- CN102277799A CN102277799A CN2011101130634A CN201110113063A CN102277799A CN 102277799 A CN102277799 A CN 102277799A CN 2011101130634 A CN2011101130634 A CN 2011101130634A CN 201110113063 A CN201110113063 A CN 201110113063A CN 102277799 A CN102277799 A CN 102277799A
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- sleeper
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- steel fabric
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Abstract
The invention discloses a steel bar welded wire mesh concrete sleeper which comprises one or more sleeper concrete blocks (2), a steel bar welded wire mesh frame (3) and an embedded part (5) of a fastening system. The steel bar welded wire mesh concrete sleeper is characterized in that the steel bar welded wire mesh frame is used for connecting one or more sleeper concrete blocks into a whole, and is bent or pressed to form a space stereo structure with a cross section of a broken line or curve by adopting a steel bar welded wire mesh. The steel bar welded wire mesh frame of the steel bar welded wire mesh concrete sleeper is convenient for manufacture without adopting special production equipment, thus construction costs are reduced, and constructability and economy of the production of the concrete sleeper are improved. The steel bar welded wire mesh concrete sleeper has excellent mechanical property, better combination effect with a ballast bed board, and stronger stability of a rail.
Description
The present invention relates to the non-fragment orbit concrete sleeper, relate in particular to a kind of welded steel fabric concrete sleeper that utilizes welded steel fabric (Welded steel fabric) to bend or be pressed into the welded steel fabric frame.Imbedding after this sleeper is prefabricated in the concrete road bed board of cast in situs, is one of important component part of welded steel fabric concrete crosstie formula non-fragment orbit system.
Background technology
In pillow formula non-fragment orbit system, the function of its sleeper mainly provides determining of fastener embedded parts location and track geometry in the ballastless track bed board work progress.Therefore, build the correct of back track geometry and reduce fastener adjustment amount in the rail accurate adjustment process as far as possible, require sleeper should have good morpheme hold facility in order to guarantee bed board.Sleeper make, deposit, deflection and bending resistance in transportation and the work progress, anti-twisting property should satisfy related request.In addition on the one hand, for width and the quantity that effectively cracks between control precast concrete sleeper and the cast-in-place road bed board New-old concrete, guarantee that the non-fragment orbit agent structure satisfies the relevant durability regulation requirement of concrete structure, the long sleeper of conventional concrete progressively optimal design be by truss bars connection, the concrete sleeper piece of locating.At present, concrete sleeper is used comparatively extensive, ripe Stdedf sleeper that mainly comprises France (the sleeper link adopts angle steel) and German radar 2000 (the sleeper link adopts steel bar girder) in the non-fragment orbit.The domestic CRTS I type double-block type sleeper of extensively laying at present digests, absorbs, innovates formation on radar 2000 sleeper bases.
Stdedf type non-fragment orbit adopts the double-block type concrete sleeper, connects with angle steel between the sleeper concrete block, to increase stability, since white 1966, successively has been applied in states such as France, Spain, Switzerland.Angle steel is a standard sections, wide material sources.Though this sleeper production technology is simple, sleeper uses angle steel more, and cost is higher, and the sleeper non-deformability is relatively poor relatively.
Rheda 2000 and CRTS I type double-block type sleeper steel bar girder are the space welded construction of three straight chord member reinforcing bars and two waveform web member reinforcing bars.This steel bar girder sleeper of domestic production is raw material with HPB 235 high-speed rods, produces through operations such as cold rolling, straightening, bending and welding.This steel bar girder is made needs to adopt special equipment, complex process, and equipment is expensive, causes the sleeper cost higher, and its waveform web member wavelength is adjusted difficulty, and length consuming time, and on-the-spot adaptive capacity is relatively poor.
Welded steel fabric (Welded steel fabric) is in factory the vertical, horizontal reinforcing bar to be arranged and be mutually right angle, whole net sheets of all welding together of crosspoint respectively with certain spacing, be construction timber novel, efficient, energy-conservation, the enhanced coagulation soil structure, have advantages such as quality of welding spot is reliable, rebar spacing stable, save steel, improve work efficiency, reduce cost, the antidetonation cracking resistance is good.For promoting the use of welded steel fabric, relevant unit such as former nation-building portion made and issued in succession " steel concrete welded steel fabric " (GB/T1499.3), " welded steel fabric concrete structure tecnical regulations " standard standards such as (JGJ114, J276).At present, welded steel fabric is used widely in fields such as building construction, municipal engineering.
Because welded steel fabric is the plane net structure, its anti-bending strength and torsional property are poor, and it directly can not be satisfied the requirement of sleeper distortion as railway ballastless track concrete sleeper link.
Summary of the invention
The objective of the invention is in order to solve the deficiency that the above-mentioned background technology exists, but propose a kind ofly effectively to increase by how much morpheme hold facilities of sleeper, reduce amount of reinforcement and raising application property, satisfy the welded steel fabric concrete sleeper of sleeper bending-twisting Capability Requirement.
To achieve these goals, the present invention adopts following technical scheme: the welded steel fabric concrete sleeper, built-in fitting 5 by one or more sleeper concrete blocks 2, welded steel fabric frame 3 and fastener system constitutes, it is characterized in that: described welded steel fabric frame is connected to integral body with one or more sleeper concrete blocks, and described welded steel fabric frame adopts the welded steel fabric bending or is pressed into the space multistory structure that cross section is broken line or shaped form.
Preferably, described welded steel fabric frame 3 cross sections are M type or W type, comprise the upper chord reinforcing bar 6, lower chord reinforcing bar 7 that is positioned at the bottom and the web member reinforcing bar 8 that is connected upper chord reinforcing bar 6 and lower chord reinforcing bar 7 that are positioned at the top, wherein upper chord reinforcing bar 6 and lower chord reinforcing bar 7 are vertically arranged along sleeper, and web member reinforcing bar 8 is vertically arranged perpendicular to sleeper.
Furtherly, described sleeper concrete block two sides longitudinally can just in time be dropped in the middle of the adjacent two web member reinforcing bars 8 of welded steel fabric frame.
Preferably, the connected mode of described welded steel fabric frame and sleeper concrete block is that welded steel fabric is placed in the mfg. moulding die of sleeper concrete block, builds with the sleeper concrete block to be one.
Furtherly, can establish reinforced mesh or stirrup 4 in the described sleeper concrete block 2, reinforced mesh or stirrup 4 link together with welded steel fabric frame 3.
In such scheme, described welded steel fabric frame can be partially submerged in the sleeper concrete block along short transverse, and part is exposed.
Preferably, described sleeper concrete block upper surface is provided with the medial and lateral shoulder block of projection, and inboard shoulder block end face is set to plane or inclined-plane; 11: 1～7: 1 inclination angle is established in sleeper concrete block side, and chamfered is all carried out in the corner above the sleeper concrete block.
Preferably, the position of the built-in fitting 5 of described fastener system can make the sleeper concrete block be symmetrical in the rail vertical axis substantially.
A kind ofly lay adjacent two non-fragment orbit systems arranged side by side, it is characterized in that: can connect with welding or colligation mode between the welded steel fabric frame in two welded steel fabric concrete sleepers one to one between adjacent two non-fragment orbit systems according to above-mentioned welded steel fabric concrete sleeper.
The present invention is in conjunction with the development of welded steel fabric technology at present, the welded steel fabric technology is applied in the non-fragment orbit concrete sleeper, promptly uses welded steel fabric (Welded steel fabric) to form behind the welded steel fabric frame link as the sleeper piece through certain processes.
The welded steel fabric frame that the present invention adopts is compared with other non-fragment orbit concrete sleeper links, has following characteristics:
1, several concrete sleeper link performances relatively
| Characteristics | Radar 2000 | Stdedf type angle steel | Welded steel fabric frame of the present invention |
| Former material source | Extensively | Extensively | Extensively |
| Processing technology | Complicated | Simply | Simply |
| Process equipment | Specificity is strong | Common apparatus | Common apparatus |
| With concrete bonding | Good | Relatively poor | Good |
| Cost | Higher | High | Lower |
| Mechanical property | Good | Generally | Better |
| Globality | Better | Better | Good |
| Flatness | Better | Good | Good |
2, for the mechanical property of checking welded steel fabric frame of the present invention, be example, carried out bending resistance, torsion test with M shape welded steel fabric frame (Fig. 5).The result shows, rack bending resistance, torsional property are good, keep geometric form potential energy power strong.
The present invention has following advantage, effect:
1, welded steel fabric is a matured product, and industry standard and company standard system are complete, quality controllable, and the product supply of material is stable.
2, sleeper welded steel fabric frame is by welded steel fabric bending or compression moulding, and technology is simple, and with low cost, reliable in quality, specification is flexible, precision is high, error is little, can satisfy the requirement of sleeper bending-twisting ability.
3, the sleeper concrete block is symmetrical in the rail vertical axis substantially, and is less with the bonding surface of cast-in-place road bed board.The inclined-plane of certain slope is arranged in the sleeper side, and simultaneously chamfered is all carried out in corner, concrete sleeper piece side, so that the demoulding and reduce concrete stress and concentrate in making manufacturing process of concrete sleeper piece.
4, sleeper concrete block of the present invention connects with monolithic reinforced welding rack, more general combined type reinforcing bar truss integral is stronger, and monolithic reinforced welded mesh machining accuracy height, flatness is good, can effectively alleviate concrete sleeper deposit, distortion in the process such as transportation.
Description of drawings
Fig. 1 is a monolithic reinforced welded mesh concrete sleeper embodiment schematic diagram of the present invention.
Fig. 2 is a non-shoulder double-block type welded steel fabric concrete sleeper embodiment schematic diagram of the present invention.
Fig. 3 is the shoulder block double-block type welded steel fabric concrete sleeper embodiment schematic diagram that has of the present invention.
Fig. 4 is the vertical view of Fig. 3.
Fig. 5 is the lateral view of Fig. 3.
Fig. 6 is a multi-block welded steel fabric concrete sleeper embodiment schematic diagram of the present invention.
Fig. 7 is a M shape welded steel fabric frame stereogram.
Fig. 8 is M shape welded steel fabric frame torsional property trial curve figure.
Fig. 9 is a M shape welded steel fabric frame experiment on flexural behavior curve map.
In the drawings, 1-rail, 2-sleeper concrete block, 3-welded steel fabric frame, 4-reinforced mesh or stirrup, 5-built-in fitting, 6-upper chord reinforcing bar, 7-lower chord reinforcing bar, 8-web member reinforcing bar.
Described embodiment describes the present invention in detail below in conjunction with accompanying drawing, so that those skilled in the art understand.
The specific embodiment
Embodiment 1: referring to Fig. 3,4,5.Present embodiment is made of two sleeper concrete blocks 2, welded steel fabric frame 3 and the built-in fitting 5 that is used for fixing fastener system, and welded steel fabric frame 3 connects sleeper concrete block 2 as a whole.
Described each sleeper concrete block 2 is a hexahedron, is symmetrical in rail 1 vertical axis substantially.Described sleeper concrete block upper surface is provided with the medial and lateral shoulder block of projection, and inboard shoulder block end face is set to plane or inclined-plane, and convenient construction personnel trample; Concrete block support rail platform surface is 1: 40～1: 20 inclined-plane or the plane that tilt to the inside; 11: 1～7: 1 inclination angle is established in sleeper concrete block side, so that the demoulding when making; Chamfered is all carried out in four corners above the sleeper concrete block, and is not only conveniently stripped, and handles with respect to not establishing chamfering or chamfered edge, can prevent or reduce on every side the stress of railway roadbed board concrete and concentrate, and reduces the crackle of railway roadbed board concrete.
Reinforced mesh or stirrup 4 are set in the sleeper concrete block 2, and this reinforced mesh or stirrup 4 independently place in the sleeper concrete block 2, to improve the intensity of sleeper concrete block.
Described welded steel fabric frame 3 adopts welded steel fabric (Welded steel fabric) bending or compression moulding first.Welded steel fabric frame after the moulding is made up of with the web member reinforcing bar 8 that is connected upper chord reinforcing bar 6 and lower chord reinforcing bar 7 the upper chord reinforcing bar 6 that is positioned at the top, the lower chord reinforcing bar 7 that is positioned at the bottom, wherein upper chord reinforcing bar 6 and lower chord reinforcing bar 7 are vertically arranged along sleeper, and web member reinforcing bar 8 is vertically arranged perpendicular to sleeper.Welded steel fabric frame cross section can be the three-dimensional shape that M shape, W shape or other shapes have certain altitude.
Present embodiment longitudinally places the welded steel fabric frame in the sleeper concrete block mfg. moulding die, builds with the sleeper concrete block to be one.The welded steel fabric frame embeds in the sleeper concrete block along a short transverse part, a part is exposed at outside the sleeper concrete block, concrete block is along 2 sides of length of sleeper direction, just in time drop in the middle of the bar frame two adjacent web members, to make things convenient for the shutoff of mould, make and build or be difficult for spillage, the outward appearance of concrete sleeper, better quality during vibrated concrete.
The height of present embodiment satisfies the requirement of the minimum protective layer thickness of longitudinal reinforcement that is arranged on welded steel fabric frame top in the bed board.
Embodiment 2: referring to Fig. 1.Present embodiment and embodiment are basic identical, and difference is that present embodiment sleeper concrete block 2 is one, and the upper surface non-shoulder is the plane.
Embodiment 3: referring to Fig. 2.Present embodiment and embodiment are basic identical, and difference is that present embodiment sleeper concrete block 2 upper surface non-shoulders are the plane.
Embodiment 4: referring to Fig. 6.Present embodiment and embodiment are basic identical, and difference is that present embodiment sleeper concrete block 2 is three, and the upper surface non-shoulder is the plane.
Embodiment 5: present embodiment is the foregoing description 1 described welded steel fabric concrete sleeper to be laid in adjacent two non-fragment orbit systems arranged side by side (as the track switch place), longitudinally connects with welding or colligation mode between the welded steel fabric frame in two welded steel fabric concrete sleepers one to one between adjacent two non-fragment orbit systems.
The welded steel fabric frame of sleeper of the present invention is made easy, does not need to adopt production equipment special, can reduce construction costs, but improves application property and economy that concrete sleeper is produced.This welded steel fabric concrete sleeper good mechanical properties, with the better effects if that combines of road bed board, the stability of track is stronger.
Although the foregoing description has been made detailed description to the present invention, people can also make the modification that does not depart from central idea to it, can also be combination, the stack of a plurality of M shapes or a plurality of W shapes as welded steel fabric frame cross section; The sleeper concrete block can also the non-fragment orbit system needs be set to more than four or four of shoulder block or non-shoulder.These modifications all belong to protection scope of the present invention, and protection scope of the present invention should be as the criterion with claims.
Claims (9)
1. welded steel fabric concrete sleeper, built-in fitting (5) by one or more sleeper concrete blocks (2), welded steel fabric frame (3) and fastener system constitutes, it is characterized in that: described welded steel fabric frame is connected to integral body with one or more sleeper concrete blocks, and described welded steel fabric frame adopts the welded steel fabric bending or is pressed into the space multistory structure that cross section is broken line or shaped form.
2. according to the described welded steel fabric concrete sleeper of claim 1, it is characterized in that: described welded steel fabric frame (3) cross section is M type or W type, comprise the upper chord reinforcing bar (6), lower chord reinforcing bar (7) that is positioned at the bottom and the web member reinforcing bar (8) that is connected upper chord reinforcing bar (6) and lower chord reinforcing bar (7) that are positioned at the top, wherein upper chord reinforcing bar (6) and lower chord reinforcing bar (7) arrange vertically that along sleeper web member reinforcing bar (8) is vertically arranged perpendicular to sleeper.
3. welded steel fabric concrete sleeper according to claim 2 is characterized in that: described sleeper concrete block two sides longitudinally, just in time drop in the middle of the adjacent two web member reinforcing bars (8) of welded steel fabric frame.
4. according to the described welded steel fabric concrete sleeper of claim 1, it is characterized in that: the connected mode of described welded steel fabric frame and sleeper concrete block is, welded steel fabric is placed in the mfg. moulding die of sleeper concrete block, builds with the sleeper concrete block to be one.
5. welded steel fabric concrete sleeper according to claim 4 is characterized in that: establish reinforced mesh or stirrup (4) in the described sleeper concrete block (2), reinforced mesh or stirrup (4) link together with welded steel fabric frame (3).
6. according to the described welded steel fabric concrete sleeper of claim 1, it is characterized in that: described welded steel fabric frame is partially submerged in the sleeper concrete block along short transverse, and part is exposed.
7. according to the described welded steel fabric concrete sleeper of claim 1, it is characterized in that: described sleeper concrete block upper surface is provided with the medial and lateral shoulder block of projection, and inboard shoulder block end face is set to plane or inclined-plane; 11: 1～7: 1 inclination angle is established in sleeper concrete block side, and chamfered is all carried out in the corner above the sleeper concrete block.
8. according to the described welded steel fabric concrete sleeper of claim 1, it is characterized in that: the position of the built-in fitting of described fastener system (5) can make the sleeper concrete block be symmetrical in the rail vertical axis substantially.
9. lay adjacent two non-fragment orbit systems arranged side by side according at least one described welded steel fabric concrete sleeper of claim among the claim 1-8 for one kind, it is characterized in that: connect with welding or colligation mode between the welded steel fabric frame in two welded steel fabric concrete sleepers one to one between adjacent two non-fragment orbit systems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101130634A CN102277799A (en) | 2011-05-04 | 2011-05-04 | Steel bar welded wire mesh concrete sleeper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101130634A CN102277799A (en) | 2011-05-04 | 2011-05-04 | Steel bar welded wire mesh concrete sleeper |
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| CN102277799A true CN102277799A (en) | 2011-12-14 |
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| CN2011101130634A Pending CN102277799A (en) | 2011-05-04 | 2011-05-04 | Steel bar welded wire mesh concrete sleeper |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107217551A (en) * | 2017-07-10 | 2017-09-29 | 中铁第四勘察设计院集团有限公司 | A kind of assembly concrete-filled steel tube double-block type sleeper |
| CN106758563B (en) * | 2017-03-02 | 2018-04-06 | 兰州理工大学 | Sleeper construction and construction method for non-fragment orbit linking new and old concrete |
| CN110172869A (en) * | 2019-05-30 | 2019-08-27 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | The construction method of assembled ballastless track system and assembled ballastless track system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191121341A (en) * | 1911-04-25 | 1912-02-15 | William Voorhees La Bau | Improvements in Concrete Railway Ties. |
| CN2863856Y (en) * | 2006-02-20 | 2007-01-31 | 中铁八局集团有限公司 | Non-shoulder dual-block sleeper |
| CN2871612Y (en) * | 2006-02-20 | 2007-02-21 | 中铁八局集团有限公司 | Non-prestressed and double-blocking sleeper without shielding shoulder |
| CN101784726A (en) * | 2007-05-29 | 2010-07-21 | 沃斯特阿尔派因Bwg有限责任两合公司 | Concrete sleeper |
| CN202090244U (en) * | 2011-05-04 | 2011-12-28 | 中铁第四勘察设计院集团有限公司 | Welded steel fabric concrete sleeper |
-
2011
- 2011-05-04 CN CN2011101130634A patent/CN102277799A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191121341A (en) * | 1911-04-25 | 1912-02-15 | William Voorhees La Bau | Improvements in Concrete Railway Ties. |
| CN2863856Y (en) * | 2006-02-20 | 2007-01-31 | 中铁八局集团有限公司 | Non-shoulder dual-block sleeper |
| CN2871612Y (en) * | 2006-02-20 | 2007-02-21 | 中铁八局集团有限公司 | Non-prestressed and double-blocking sleeper without shielding shoulder |
| CN101784726A (en) * | 2007-05-29 | 2010-07-21 | 沃斯特阿尔派因Bwg有限责任两合公司 | Concrete sleeper |
| CN202090244U (en) * | 2011-05-04 | 2011-12-28 | 中铁第四勘察设计院集团有限公司 | Welded steel fabric concrete sleeper |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106758563B (en) * | 2017-03-02 | 2018-04-06 | 兰州理工大学 | Sleeper construction and construction method for non-fragment orbit linking new and old concrete |
| CN107217551A (en) * | 2017-07-10 | 2017-09-29 | 中铁第四勘察设计院集团有限公司 | A kind of assembly concrete-filled steel tube double-block type sleeper |
| CN110172869A (en) * | 2019-05-30 | 2019-08-27 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | The construction method of assembled ballastless track system and assembled ballastless track system |
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Application publication date: 20111214 |