CN108560331B - Novel sleeper wrapped with steel plates - Google Patents
Novel sleeper wrapped with steel plates Download PDFInfo
- Publication number
- CN108560331B CN108560331B CN201810227212.1A CN201810227212A CN108560331B CN 108560331 B CN108560331 B CN 108560331B CN 201810227212 A CN201810227212 A CN 201810227212A CN 108560331 B CN108560331 B CN 108560331B
- Authority
- CN
- China
- Prior art keywords
- sleeper
- steel
- steel plate
- concrete
- novel
- 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.)
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Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 79
- 239000010959 steel Substances 0.000 title claims abstract description 79
- 241001669679 Eleotris Species 0.000 title claims abstract description 62
- 239000004567 concrete Substances 0.000 claims abstract description 22
- 238000005336 cracking Methods 0.000 claims abstract description 12
- 238000010008 shearing Methods 0.000 claims abstract description 10
- 238000005452 bending Methods 0.000 claims abstract description 7
- 239000000835 fiber Substances 0.000 claims abstract description 6
- 238000012946 outsourcing Methods 0.000 claims abstract description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000012546 transfer Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 7
- 239000011150 reinforced concrete Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
- E01B3/46—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from different materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Railway Tracks (AREA)
Abstract
The invention discloses a novel sleeper externally coated with steel plates. The outsourcing steel plate is arranged on the top surface, the bottom surface and the side surfaces of the sleeper and also serves as a template. The steel plate on the top surface of the sleeper is disconnected at the rail bearing groove, the steel plate is wrapped on the bottom surface and the side surface of the sleeper to be locally thickened at the rail bearing groove section, and the constraint concrete is formed at the rail bearing groove section. The external steel plate and the built-in concrete transfer interface shearing force through the shearing-resistant connecting piece, and the concrete body in the sleeper is provided with constructional steel bars and anti-cracking steel fibers. The invention has the advantages that: the novel sleeper wrapped with the steel plate overcomes the defects of the prior art, is convenient to construct, has relatively low manufacturing cost compared with a steel sleeper, has relatively high bending resistance, compression resistance and crack resistance, improves the durability of the sleeper, and prolongs the maintenance period of a circuit.
Description
Technical Field
The invention relates to the technical field of railway tracks, in particular to a novel sleeper externally wrapped with a steel plate.
Background
The sleeper is placed under the rail, is an important component for supporting the rail and transmitting the load born by the rail to the ballast bed, and is one of main components of the railway track. The sleeper should have the function of fixing the position of the steel rail and keeping the track gauge, also have certain elasticity and insulativity, and ensure firm, reliable and enough service life. The sleeper is classified according to the material quality: wood pillows, concrete pillows, steel pillows, and the like. The wood sleeper is the earliest sleeper adopted by the railway, has good elasticity and insulativity, has the advantages of light weight, easy processing and the like, but is easy to be damaged mechanically, is not fire-resistant, corrosion-resistant and short in service life, so that the wood sleeper has less application in modern railways. The steel sleeper is widely used in federal Germany and Swiss railways, has the advantages of simple production process, large bearing load, firm track gauge maintenance, large longitudinal and transverse resistance, and the like, but has large steel consumption, high manufacturing cost, easy corrosion and large noise, so the application range is greatly limited. The concrete sleeper has long service life and good track stability, and can meet the requirements of high speed and large traffic, so that the railway ballast tracks of all countries in the world commonly adopt the concrete sleeper. However, the concrete sleeper can also have the defects of transverse cracks, longitudinal cracks, serious block dropping, rail bearing grooves, sleeper bottom concrete crushing and the like, and even the sleeper is broken and the cracks are penetrated to cause the sleeper to fail when serious, so that the driving safety is endangered.
CN102864698a discloses a reinforced concrete railway sleeper, the lower part of which is a reinforced concrete matrix, and the upper part is a steel protection layer. A pair of mounting bases are arranged on the steel protection layer, and steel rails are fixed through fasteners. When the train runs, the elasticity between the steel rail and the steel protection layer is poor, so that the train, the steel rail and the sleeper can generate great vibration and noise. CN102864698a also proposes to fill a crash pad between the reinforced concrete matrix and the steel protective layer. Based on the vibration reduction and isolation principle, the filled vibration-proof pad can enhance the stability of a reinforced concrete matrix, but can increase the vibration and noise of a train, a steel rail and a steel protection layer, thereby bringing adverse effects to driving. In addition, the sleeper can not solve the problems of cracking and crushing of the reinforced concrete base.
Disclosure of Invention
The invention aims to provide a novel sleeper wrapped with steel plates, overcomes the defects of the prior art, has the advantages of a concrete sleeper and a steel sleeper, and improves the bending resistance, compression resistance, crack resistance and durability of the sleeper.
The technical scheme of the invention is as follows: a novel sleeper coated with steel plates comprises the coated steel plates and built-in concrete; the outer-covered steel plates are arranged on the top surface, the bottom surface and the side surfaces of the sleeper and serve as templates; the outer-coated steel plate and the built-in concrete transfer interface shearing force through the shearing-resistant connecting piece.
The steel plates are arranged on the top surface, the bottom surface and the side surfaces of the sleeper, and the bottom surface and the side surfaces of the rail bearing groove section are locally thickened.
The bottom surface and the side surface wrapping steel plate are a whole steel plate, a groove shape is formed by bending, and the top surface steel plate is connected with the side surface steel plate by welding.
The steel plate on the top surface of the sleeper is disconnected at the rail bearing groove.
The inner surfaces of the top plate, the bottom plate and the side plates of the outer wrapping steel plate are provided with shearing connectors, and the shearing connectors can be in the form of studs with the interval of 10 cm to 15cm or rib plates.
The concrete body inside the sleeper is provided with anti-cracking steel fibers.
The invention has the advantages that: the sleeper wrapped with the steel plate can overcome the defects of the prior art, is convenient to construct, has lower manufacturing cost compared with a steel sleeper, and has better bending resistance, compression resistance, cracking resistance and durability. In addition, the cross-sectional area of the existing concrete sleeper can be reduced, and a regular sleeper cross-section can also be adopted. Furthermore, due to the protection of the outer-covered steel plate, the cracking and the falling of the sleeper are avoided, the durability of the sleeper is improved, and the maintenance period of the circuit is prolonged.
Drawings
FIG. 1 is a longitudinal section of embodiment 1 of the present invention;
FIG. 2is a plan view of embodiment 1 of the present invention;
FIG. 3 is a cross-sectional view under the rail of embodiment 1 of the present invention;
FIG. 4 is a cross-sectional view of a pillow according to embodiment 1 of the present invention;
FIG. 5 is a longitudinal section of embodiment 2 of the present invention;
FIG. 6 is a plan view of embodiment 2 of the present invention;
fig. 7 is a stirrup arrangement of the present invention.
In the figure: 100-of an outer-cladding steel plate, 110-of pegs, 120-of rib plates, 200-of built-in concrete, 300-of constructional steel bars, 310-of stirrups and 400-of anti-cracking steel fibers.
Detailed Description
The invention is further described below with reference to the examples and with reference to the accompanying drawings.
Example 1
The invention provides a novel sleeper wrapped with steel plates, which is used for improving the bending resistance, compression resistance, cracking resistance and durability of the sleeper. As shown in fig. 1 to 4, the present embodiment includes an exterior steel plate 100 and a built-in concrete 200. The exterior steel plate 100 is disposed on the top, side and bottom surfaces of the sleeper, and also serves as a form, and can improve the bending and cracking resistance of the sleeper. The steel plates 100 of the bottom and the side surfaces of the sleeper are thickened by 0.5 cm to 1cm locally at the rail bearing groove sections, and the steel plates of the top surface are disconnected at the rail bearing grooves. Stud shear keys 110 are welded on the inner surfaces of the top plate, the side plates and the bottom plate of the outer-coated steel plate 100, and adjacent studs are spaced by 10-15cm. The peg is used as a shear connector, and can transfer the interfacial shear force between the outer-coated steel plate and the coated concrete.
The construction bars 300 are disposed at the upper, middle and lower positions of the sleeper, and the construction bars 300 are arranged in a straight line. In order to fix the position of the construction steel bar 300, a plurality of stirrups 310 are provided in the transverse direction of the construction steel bar, and the construction steel bar 300 is bound with the stirrups 310, see fig. 7. Inside the sleeper is provided with an anti-cracking steel fiber 400, which can effectively reduce cracking of the concrete in the sleeper.
The novel sleeper of the outsourcing steel plate is constructed by the following steps:
1. And manufacturing the outer-covered steel plate 100, and welding stud shear keys 110 on the inner surfaces of the top plate, the side plates and the bottom plate of the outer-covered steel plate 100.
2. The construction steel bars 300 are arranged, and the stirrups 310 and the construction steel bars 300 are bound to form a steel reinforcement framework.
3. An anti-cracking steel fiber 400 is arranged.
4. And pouring concrete to form the novel sleeper wrapped with the steel plate.
Example 2
In this embodiment, as shown in fig. 5 to 6, the shear connectors used between the exterior steel plates 100 and the interior concrete 200 are in the form of rib plate shear keys 120, and the shear connectors of the exterior steel plates on the top, side and bottom surfaces are staggered, and the rest of the structure is identical to the reinforcement pattern of embodiment 1.
The embodiments of the present invention described above do not limit the scope of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention as set forth in the appended claims.
Claims (5)
1. A novel sleeper of outsourcing steel sheet, its characterized in that: the sleeper comprises an outer steel plate (100) and built-in concrete (200); the outer-covered steel plates (100) are arranged on the top surface, the bottom surface and the side surfaces of the sleeper and serve as templates; the outer-coated steel plate (100) and the built-in concrete (200) transmit interface shearing force through a shearing-resistant connecting piece; the steel plate on the top surface of the sleeper is disconnected at the rail bearing groove.
2. The steel-clad novel sleeper according to claim 1, wherein: the outer steel plates (100) are arranged on the top surface, the bottom surface and the side surfaces of the sleeper, and the bottom surface and the side surface steel plates of the rail bearing groove section are locally thickened.
3. The steel-clad novel sleeper according to claim 1, wherein: the bottom surface and the side surface wrapping steel plate (100) are a whole steel plate, the groove shape is formed by bending, and the top surface steel plate and the side surface steel plate are connected by welding.
4. The steel-clad novel sleeper according to claim 1, wherein: the inner surfaces of the top plate, the bottom plate and the side plates of the outer-covered steel plate (100) are provided with shearing connectors, and the shearing connectors adopt bolts (110) with a spacing of 10 cm to 15cm or rib plates (120).
5. The steel-clad novel sleeper according to claim 1, wherein: the concrete body inside the sleeper is provided with anti-cracking steel fibers (400).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810227212.1A CN108560331B (en) | 2018-03-20 | 2018-03-20 | Novel sleeper wrapped with steel plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810227212.1A CN108560331B (en) | 2018-03-20 | 2018-03-20 | Novel sleeper wrapped with steel plates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108560331A CN108560331A (en) | 2018-09-21 |
| CN108560331B true CN108560331B (en) | 2024-05-03 |
Family
ID=63532783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810227212.1A Active CN108560331B (en) | 2018-03-20 | 2018-03-20 | Novel sleeper wrapped with steel plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108560331B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190523013A (en) * | 1905-11-09 | 1906-10-04 | Jasper Lucius Catlett | Improvements in and relating to Railroad Ties or Sleepers. |
| CN101046075A (en) * | 2006-03-29 | 2007-10-03 | 中铁八局集团有限公司 | No-circulating reinforced truss for double-block sleeper and its production process |
| CN101063286A (en) * | 2006-04-30 | 2007-10-31 | 上海磁浮交通工程技术研究中心 | Track structure of magnetic floating traffic and manufacturing method therefor |
| CN103147363A (en) * | 2011-12-06 | 2013-06-12 | 乐昌市安捷铁路轨枕有限公司 | Special sleeper for tram rail |
| CN208104911U (en) * | 2018-03-20 | 2018-11-16 | 华东交通大学 | A kind of Novel sleeper of encased steel plate |
-
2018
- 2018-03-20 CN CN201810227212.1A patent/CN108560331B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190523013A (en) * | 1905-11-09 | 1906-10-04 | Jasper Lucius Catlett | Improvements in and relating to Railroad Ties or Sleepers. |
| CN101046075A (en) * | 2006-03-29 | 2007-10-03 | 中铁八局集团有限公司 | No-circulating reinforced truss for double-block sleeper and its production process |
| CN101063286A (en) * | 2006-04-30 | 2007-10-31 | 上海磁浮交通工程技术研究中心 | Track structure of magnetic floating traffic and manufacturing method therefor |
| CN103147363A (en) * | 2011-12-06 | 2013-06-12 | 乐昌市安捷铁路轨枕有限公司 | Special sleeper for tram rail |
| CN208104911U (en) * | 2018-03-20 | 2018-11-16 | 华东交通大学 | A kind of Novel sleeper of encased steel plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108560331A (en) | 2018-09-21 |
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