WO2012079526A1 - 板式无砟轨道预应力混凝土轨道板 - Google Patents
板式无砟轨道预应力混凝土轨道板 Download PDFInfo
- Publication number
- WO2012079526A1 WO2012079526A1 PCT/CN2011/084072 CN2011084072W WO2012079526A1 WO 2012079526 A1 WO2012079526 A1 WO 2012079526A1 CN 2011084072 W CN2011084072 W CN 2011084072W WO 2012079526 A1 WO2012079526 A1 WO 2012079526A1
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- WO
- WIPO (PCT)
- Prior art keywords
- slab
- track
- plate body
- steel bars
- prestressed
- Prior art date
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
-
- 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
- E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
- E01B3/40—Slabs; Blocks; Pot sleepers; Fastening tie-rods to them
Definitions
- the present invention relates to a track board that can be widely applied to high-speed railways, passenger lines, general railways, and urban and intercity traffic, such as slab ballastless track prestressed concrete track boards and panels. Prestressed concrete track plate with pre-tensioned ballastless track. BACKGROUND OF THE INVENTION By 2020, the total mileage of China's railway operations will reach 100,000 kilometers. It is necessary to build a "four vertical and four horizontal" express passenger line and three inter-city rapid rail transit systems to realize the transportation of passenger and cargo lines of major busy trunk lines.
- ballastless track systems There are two main types of ballastless tracks: plate type and double block type.
- the slab ballastless track represented by the Japanese post-track plate and the German Borg plate has obvious superiority compared with the double-block ballastless track.
- China began to use the post-track plate for the Qinshen line and the Chongqing line. Since the Beijing-Tianjin intercity high-speed railway adopted the Borg board, the high-speed railway ballastless track has developed rapidly. Engineering practice shows that both types of track plates have obvious defects and need to be improved.
- the present invention is directed to a rail board adapted to a railway track circuit having a light weight, low structural height, low manufacturing cost, and low deformation, such as a slab ballastless track prestressed concrete track slab and a slab ballastless track pretensioning method. Prestressed concrete track panels.
- a slab ballastless track prestressed concrete track slab comprising: a plate body, a fastener embedded bushing disposed on the plate body, and a length along the length of the plate body And the width direction is provided with at least one row of longitudinal ordinary steel bars and at least one row of horizontal ordinary steel bars, wherein the longitudinal ordinary steel bars and the transverse ordinary steel bars are insulated from each other, and the anchor plate and the longitudinal direction and the width direction are further passed through the anchor plate and
- the fastening device is fastened with at least one row of longitudinal prestressed steel bars and at least one row of transversely prestressed steel bars, and the prestressing direction on the longitudinal prestressed steel bars and the transverse prestressed steel bars is a two-way post-tension or a one-way prior After the sheet is stretched, a limit structure and a grounding terminal are further disposed on the board.
- a slab ballastless track pretensioned prestressed concrete track slab comprising: a slab body, a fastener pre-embedded sleeve is disposed on the slab body, and a length along the length of the slab
- the width direction is provided with at least one row of longitudinal ordinary steel bars and at least one row of transverse ordinary steel bars, and the longitudinal ordinary steel bars and the transverse ordinary steel bars are insulated from each other, and at least one row of longitudinal directions is further disposed in the plate body along the length direction and the width direction.
- a prestressed steel bar and at least one row of transversely prestressed steel bars wherein the prestressing direction on the longitudinal prestressed steel bar and the transverse prestressed steel bar is a bidirectional pretension, and a finite bit structure and a grounding terminal are further disposed on the plate body .
- a track plate comprising: a plate body having at least one row of longitudinal reinforcing bars and at least one row of transverse reinforcing bars disposed in a length and width direction in the plate body, and longitudinal reinforcing bars and lateral reinforcing bars are mutually connected Insulation, at least one row of longitudinal prestressed steel bars and at least one row of lateral prestressed steel bars are further disposed in the longitudinal direction and the width direction of the plate body, and a limited structure and a grounding terminal are further disposed on the plate body.
- the invention adopts the above technical solutions and has the following characteristics: 1.
- the slab ballastless track prestressed concrete track slab and the slab ballastless track pretensioned prestressed concrete track slab of the present invention can facilitate the adhesion of the elastic cushion to the bottom of the slab to achieve vibration reduction of the lower foundation;
- the transition between the girders can facilitate the laying of auxiliary rails on the concrete track slabs and increase the vertical bending stiffness of the rails.
- the concrete track slabs are relatively light in weight and low in structural height by applying prestress (the direction of the prestress is two-way) Zhang or always open the first post or two-way pre-tension) to ensure that the concrete does not crack under the design load; it can meet the requirements of safety and stability of high-speed and heavy-duty train operation.
- the problem of higher cost of the anchor of the post-tensioned track plate can be solved.
- the slab ballastless track prestressed concrete track slab and the slab ballastless track pretensioned prestressed concrete track slab of the present invention vertical and horizontal ordinary steel bars are arranged, and resin steel bars or insulating coatings and insulating cards can be used.
- the manufacturing process is simple when adopting the insulation mode. Quality is easy to guarantee.
- the vertical and horizontal ordinary steel bars can be bundled into steel mesh sheets, which facilitates the overall mold insertion, which can increase the positioning accuracy of the steel bars and save production time.
- the slab ballastless track prestressed concrete track slab and the slab ballastless track pretensioned prestressed concrete track slab of the invention have light weight, low structural height, low manufacturing cost, convenient transportation and laying, and daily temperature difference to the track plate. The effect of warpage is small and the amount of filler material is reduced.
- FIG. 1 is a front perspective view of a first embodiment of a slab ballastless track prestressed concrete track slab of the present invention
- FIG. 2 is a first embodiment of a slab ballastless track prestressed concrete track slab of the present invention.
- 3 is a schematic view of a prestressed steel bar of a first embodiment of a slab ballastless track prestressed concrete track slab of the present invention;
- FIG. 4 is a first embodiment of a slab ballastless track prestressed concrete track slab of the present invention.
- FIG. 5 is a front view of a second embodiment of a slab ballastless track prestressed concrete track slab according to the present invention
- Figure 6 is a top plan view of a second embodiment of the slab ballastless track prestressed concrete track slab of the present invention
- Figure 7 is a schematic view of a prestressed steel bar of a second embodiment of the slab ballastless track prestressed concrete track slab of the present invention
- Figure 8 is a view of a second embodiment of the slab ballastless track prestressed concrete track slab of the present invention
- 9 is a top plan view of a third embodiment of a slab ballastless track prestressed concrete track slab according to the present invention
- FIG. 10 is a first embodiment of a slab ballastless track pretensioned prestressed concrete track slab of the present invention.
- FIG. 11 is a top plan view of a first embodiment of a slab ballastless track pretensioned prestressed concrete track slab of the present invention.
- FIG. 12 is a slab ballastless track pretensioned prestressed concrete according to the present invention;
- FIG. 13 is a prestressed concrete track plate of a slab ballastless track pretensioned according to the present invention.
- FIG. 14 is a schematic view of a common steel bar of a first embodiment of a slab ballastless track pretensioned prestressed concrete track slab of the present invention; and FIG. 15 is a slab ballastless track of the present invention.
- First embodiment of slab ballastless track prestressed concrete track slab 1 to 4 are schematic views showing the structure of a first embodiment of a slab ballastless track prestressed concrete track slab according to the present invention.
- the slab ballastless track prestressed concrete track slab of the present invention comprises: a plate body 1, and a fastener pre-embedded sleeve 4 is arranged on the plate body 1, and the position of the bushing 4 can be pre-buried by adjusting the fastener To adjust the rail fastener spacing to suit different operating conditions.
- a row of longitudinal ordinary steel bars 11 and a row of transverse ordinary steel bars 12 are arranged in the length and width direction of the plate body 1, and a row is fastened in the plate body 1 in the longitudinal direction and the width direction by the anchor plate and the fastening device 8.
- the longitudinal prestressed steel bars 7 and the horizontal prestressed steel bars 6 are prestressed on the longitudinal prestressed steel bars 7 and the transversely prestressed steel bars 6 in a two-way post-tension or a one-way first-mesh post-tension.
- the anchor pad is disposed at a lateral end and/or a longitudinal end of the plate.
- a railing table 2 is further provided on the plate body 1, and the railing table 2 and the plate body 1 can be integrally molded at the time of production.
- a spiral rib 9 is provided in the concrete around the anchor plate and the fastening device 8.
- Ordinary steel bars 11, 12 can be insulated with resin rebar or insulating coating, insulation card, etc., and grounding terminal 10 is also provided at the ordinary steel bar to meet the technical requirements of track circuit insulation, wherein the resin rebar is The outer surface has a resin coated steel bar. As shown in Fig. 4, the ground terminal 10 is connected to the upper row of ordinary steel bars 11.
- the number of rows of the longitudinal ordinary steel bars 11 and the horizontal ordinary steel bars 12 is one row, but may be set to a plurality of rows as needed, and the number of rows of the longitudinal prestressed steel bars 7 and the transversely prestressed steel bars 6 may also be Set to multiple rows as needed.
- the longitudinal prestressed steel bars 7 and the transversely prestressed steel bars 6 may be steel bars, steel wires or steel strands.
- the ground terminal 10 shown in the drawing is connected to the upper row of ordinary reinforcing bars 11, but the grounding terminal 10 can also be connected to the lower row of ordinary reinforcing bars.
- At least one set of lifting sleeves 3 are respectively disposed opposite to each other in the longitudinal direction on both sides in the width direction of the plate body 1.
- FIG. 5 to FIG. 8 are schematic structural views of a second embodiment of a slab ballastless track prestressed concrete track plate according to the present invention. As shown in FIG. 5 to FIG.
- the slab ballastless track prestressed concrete track plate of the present invention comprises: a plate body 1 , and a buckle pre-embedded sleeve 4 is arranged on the plate body 1 , and the buckle can be pre-embedded by adjusting the buckle The position of the tube 4 is used to adjust the rail fastener spacing to suit different operating conditions.
- a row of longitudinal ordinary steel bars 11 and a row of transverse ordinary steel bars 12 are arranged in the length and width direction of the plate body 1. In the plate body 1, a row is fastened in the longitudinal direction and the width direction by the anchor plate and the fastening device 8.
- the longitudinal prestressed steel bars 7 and the rows of transversely prestressed steel bars 6 have a prestressing direction on the longitudinal prestressed steel bars 7 and the transverse prestressed steel bars 6 as two-way post-tensioning or one-way first-tensioning.
- a concrete shoulder 15 is also provided on the plate body 1, and the concrete shoulder 15 can be integrally molded with the plate body 1 during production.
- a spiral rib 9 is provided in the concrete around the anchor plate and the fastening device 8.
- Ordinary steel bars 11, 12 can be made of resin steel bars or insulating coatings, insulation cards, etc., and grounding terminals 10 are also provided at ordinary steel bars to meet the technical requirements of track circuit insulation.
- resin steel bars have resin coating on the outer surface.
- the reinforcement of the layer In the first embodiment, the number of rows of the longitudinal ordinary steel bars 11 and the horizontal ordinary steel bars 12 is one row, but the roots It can be set to multiple rows as needed. Similarly, the number of rows of prestressed steel bars 7 and transversely prestressed steel bars 6 can also be set to multiple rows as needed.
- the longitudinal prestressed steel bars 7 and the transversely prestressed steel bars 6 may be steel bars, steel wires or steel strands. Further, at least one set of lifting sleeves 3 are respectively disposed opposite to each other in the longitudinal direction on both sides in the width direction of the plate body 1.
- the lifting casing is 3
- a spiral rib 13 in the surrounding concrete.
- Reinforcing steel 26 is protruded from the bottom of the plate body 1 for positioning and longitudinal and lateral limitation of the plate body 1 during line installation.
- At least one filling layer pouring hole 18 penetrating the plate body 1 is further provided on the plate body 1, and the reinforcing steel bar 26 is fixed by pouring concrete from the pouring hole 18.
- FIG. 9 is a schematic view showing the structure of a third embodiment of a slab ballastless track prestressed concrete track slab according to the present invention. As shown in FIG. 9, a hollow portion 29 is opened in the middle of the plate body 1 of the third embodiment, thereby overcoming the relatively large self-weight of the entire flat-plate type track plate in the ballastless track structure, which is inconvenient to transport and lay. The manufacturing cost is high, and the track plate is prone to warp defects under the influence of the daily temperature difference.
- the slab ballastless track prestressed concrete track slab of the present invention has the characteristics of light weight, low structural height, low manufacturing cost and low deformation.
- First embodiment of a slab ballastless track pretensioned prestressed concrete track slab Fig. 10 to Fig. 14 are structural views of a first embodiment of a slab ballastless track pretensioned prestressed concrete track slab. As shown in FIG. 10 to FIG. 14 , the slab ballastless track pretensioning prestressed concrete track slab of the present invention comprises: a plate body 101.
- the plate body 101 is provided with a fastener pre-embedded sleeve 104, which can be adjusted by a buckle.
- the position of the pre-embedded sleeve 104 is adjusted to adjust the rail fastener spacing to suit different operating conditions.
- Two rows of longitudinal ordinary steel bars 109 and two rows of horizontal ordinary steel bars 110 are disposed in the length and width direction of the plate body 101, and four rows of longitudinal prestressed steel bars 108 and a row are further disposed in the plate body 101 along the length direction and the width direction.
- the prestressing direction of the transverse prestressed reinforcing bars 107 on the longitudinal prestressed reinforcing bars 108 and the transverse prestressed reinforcing bars 107 is a two-way pretension.
- a concrete shoulder 102 is also provided on the plate body 101, and the concrete shoulder 102 can be cast into the body 101 during the production.
- Ordinary steel bars 109, 110 can be made of resin steel bar or insulating coating, insulation card, etc., and grounding terminal 112 is also provided at the ordinary steel bar to meet the technical requirements of track circuit insulation, wherein the resin steel bar has a tree on the outer surface. Grease coated steel bars.
- the number of rows of the longitudinal ordinary reinforcing bars 109 and the transverse ordinary reinforcing bars 110 are two rows, but may be set to one or more rows (for example, three rows) as needed, and similarly, the prestressed reinforcing bars 108 and the transverse prestressing force.
- the number of rows of the reinforcing bars 107 can also be set to one or more rows as needed.
- the longitudinal prestressed steel bars 108 and the transversely prestressed steel bars 107 may be steel bars, steel wires or steel strands.
- At least one set of lifting sleeves 103 are respectively disposed opposite to each other in the longitudinal direction on both sides in the width direction of the plate body 101, and in order to improve the strength of the lifting sleeve 103 and the surrounding concrete, around the lifting sleeve 103 A spiral rib 106 is provided in the concrete.
- Reinforcing bars 111 are protruded from the bottom of the plate body 1 for positioning and longitudinal and lateral positioning of the plate body 101 during line installation.
- At least one filling layer pouring hole 105 penetrating the plate body 101 is further disposed on the plate body 101, and the reinforcing steel bar 111 is fixed by pouring concrete from the pouring hole 105.
- the present invention may also be provided with a semi-circular notch on the short sides of the plate body 101 instead of using the extension rebar 111 as a limiting structure. In this case, it is not necessary to infuse the filling layer of the plate body 101. Hole 105.
- the concrete shoulder 102 can also be changed to a rail-bearing table. Alternatively, the concrete shoulder 102 or the track-bearing table can be omitted as needed.
- the longitudinal prestressed reinforcing bars and the transversely prestressed reinforcing bars are fastened by the anchor pad and the fastening means, as shown in Fig.
- FIG. 15 is a structural schematic view of a second embodiment of a slab ballastless track pretensioned prestressed concrete track slab. As shown in Fig. 15, the prestressed concrete track plate shown in this embodiment has a hollow portion 114 formed in the plate body 101 to form a prestressed concrete frame type track plate.
- the overall flat plate type track plate Since the hollow portion 114 is opened in the middle of the plate body 101, the overall flat plate type track plate has a relatively large self-weight in the ballastless track structure, is inconvenient to transport and lay, and has high manufacturing cost, and the track is affected by the daily temperature difference.
- the board is prone to warp defects.
- the utility model has the advantages of light weight structure, low manufacturing cost and low deformation. By prestressing the steel bars, the track plates are not cracked under the design load.
- Other structural arrangements, advantages, and effects of the present embodiment are the same as those of the first embodiment, and are not described herein again.
- the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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RU2013134949/11A RU2588352C2 (ru) | 2010-12-17 | 2011-12-15 | Плита из предварительно напряженного бетона для безбалластного пути с плитным основанием |
US13/994,931 US9222225B2 (en) | 2010-12-17 | 2011-12-15 | Pre-stressed concrete track slab of slab-type ballast-less track |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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CN201020665862.3 | 2010-12-17 | ||
CN 201020665862 CN201883346U (zh) | 2010-12-17 | 2010-12-17 | 板式无砟轨道预应力混凝土轨道板 |
CN201020691768.5 | 2010-12-31 | ||
CN 201020691768 CN201915299U (zh) | 2010-12-31 | 2010-12-31 | 板式无砟轨道先张法预应力混凝土轨道板 |
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WO2012079526A1 true WO2012079526A1 (zh) | 2012-06-21 |
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PCT/CN2011/084072 WO2012079526A1 (zh) | 2010-12-17 | 2011-12-15 | 板式无砟轨道预应力混凝土轨道板 |
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US (1) | US9222225B2 (zh) |
WO (1) | WO2012079526A1 (zh) |
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CN109763385A (zh) * | 2019-02-25 | 2019-05-17 | 杭州银龙唐普徕科技有限公司 | 适用于城市轨道交通建设需求的8字型预制轨道板 |
CN114687260A (zh) * | 2022-03-07 | 2022-07-01 | 中铁南方投资集团有限公司 | 装配式轨道施工方法及装配式轨道结构 |
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CN102966008A (zh) * | 2011-08-31 | 2013-03-13 | 中国铁道科学研究院铁道建筑研究所 | 无砟轨道系统 |
CN106476124B (zh) * | 2016-10-11 | 2019-01-25 | 山东高速轨道设备材料有限公司 | 一种双向先张法预应力混凝土轨道板模具 |
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CN108625228A (zh) * | 2018-05-11 | 2018-10-09 | 北京铁科特种工程技术开发公司 | 一种耐候沥青混凝土无砟轨道结构 |
CN108625228B (zh) * | 2018-05-11 | 2020-05-19 | 北京铁科特种工程技术有限公司 | 一种耐候沥青混凝土无砟轨道结构 |
CN109763385A (zh) * | 2019-02-25 | 2019-05-17 | 杭州银龙唐普徕科技有限公司 | 适用于城市轨道交通建设需求的8字型预制轨道板 |
CN114687260A (zh) * | 2022-03-07 | 2022-07-01 | 中铁南方投资集团有限公司 | 装配式轨道施工方法及装配式轨道结构 |
CN114687260B (zh) * | 2022-03-07 | 2024-02-13 | 中铁南方投资集团有限公司 | 装配式轨道施工方法及装配式轨道结构 |
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