CN110485215A - A kind of novel pretensioned prestressing steel-continuous-fiber muscle enhancing is without tiny fragments of stone, coal, etc. Reactive Powder Concrete track plates and preparation method thereof - Google Patents
A kind of novel pretensioned prestressing steel-continuous-fiber muscle enhancing is without tiny fragments of stone, coal, etc. Reactive Powder Concrete track plates and preparation method thereof Download PDFInfo
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- CN110485215A CN110485215A CN201910860022.8A CN201910860022A CN110485215A CN 110485215 A CN110485215 A CN 110485215A CN 201910860022 A CN201910860022 A CN 201910860022A CN 110485215 A CN110485215 A CN 110485215A
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- 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
-
- 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
- B28B23/043—Wire anchoring or tensioning means for the reinforcements
-
- 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
- E01B1/004—Ballastless track, e.g. concrete slab trackway, or with asphalt layers with prefabricated elements embedded in fresh concrete or asphalt
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The invention discloses a kind of novel pretensioned prestressing steel-continuous-fiber muscle (SFCB) enhancings without tiny fragments of stone, coal, etc. Reactive Powder Concrete track plates and preparation method thereof, belong to the rail plate technique field of non-fragment orbit, including track plates plate body, SFCB mesh sheet and presstressed reinforcing steel.Track plates plate body is poured using Reactive Powder Concrete, is provided with multiple groups concrete bearing platform and shoulder block, fill orifice, inspection hole and pre-buried insulating sleeve；SFCB mesh sheet is combined closely with track plates, arranges four layer arrangement of time-division, respectively transverse direction SFCB, longitudinal SFCB, lateral SFCB and longitudinal direction SFCB；Presstressed reinforcing steel is reinforcing bar, using bidirectional arrangements in length and breadth.The present invention substantially improves the insulation performance of track plates, improves the bearing capacity of rail plate, reduces the use of cumbersome insulated working and material.
Description
Technical field
The present invention relates to high speed railway track technical fields, further, belong to the rail plate technique of non-fragment orbit
Field specifically proposes that a kind of novel pretensioned prestressing steel-continuous-fiber muscle (SFCB) enhances without tiny fragments of stone, coal, etc. Reactive Powder Concrete
(RPC) track plates and preparation method thereof.
Background technique
High-speed railway with increasingly automated, high security, high reliability, it is high-comfort the features such as, just by many countries
With the attention in area, and huge Social benefit and economic benefit is achieved.Non-fragment orbit because its high reliability, high ride,
The features such as high-durability and intimate rail-free are safeguarded gradually is adopted in the construction of high-speed railway, however, in China's high speed
In the railway system, there are still incompatibility problem, main cause is steel in track plates for fragment-free track slab and ZPW-2000A track circuit
The high frequency signal current mutual inductance of muscle closed circuit and track circuit is degrading the primary parameter of rail, i.e. rail equivalent resistance increases
Greatly, inductance reduces, and railway ballast leak resistance reduces, serious curtailment track circuit transmission distance, and reduces train operating safety
Property.
Summary of the invention
The object of the present invention is to provide a kind of novel pretensioned prestressing steel-continuous-fiber muscle (SFCB) enhancings without tiny fragments of stone, coal, etc. activity
Powder concrete (RPC) track plates, the fragment-free track slab are closed back due to avoiding structure using steel-continuous-fiber muscle (SFCB)
The formation on road, thus solve the problems, such as proposed in above-mentioned background, and due to using Reactive Powder Concrete (RPC),
The bearing capacity of track plates can also be improved, and reduces the use of material.
Technical scheme is as follows:
A kind of novel pretensioned prestressing steel-continuous-fiber muscle enhancing is without tiny fragments of stone, coal, etc. Reactive Powder Concrete track plates, characterized in that packet
Track plates plate body, SFCB mesh sheet and presstressed reinforcing steel are included, the track plates plate body is provided with multiple groups concrete bearing platform, fill orifice, inspection
Look into hole and pre-buried insulating sleeve；The concrete bearing platform both ends are respectively symmetrically equipped with shoulder block, and multiple groups concrete bearing platform is in track plates
Longitudinal centre line two sides are arranged symmetrically at the top of plate body, and the fill orifice and inspection hole setting are on the longitudinal, described pre-buried
Insulating sleeve is built in concrete bearing platform；SFCB mesh sheet is equipped in the track plate body, SFCB mesh sheet is by between vertical, horizontal SFCB
It is constituted every arrangement, lateral SFCB extends along track plates plate body width direction, and longitudinal SFCB extends along track plate body length direction；
The presstressed reinforcing steel is bidirectional pre-tensioned along track plates length and width direction, and interts arrangement in SFCB mesh sheet.
Preferably, SFCB mesh sheet through-thickness point four layers of arranged for interval in track plates plate body, from top to bottom according to
Minor tick is provided with lateral SFCB, longitudinal direction SFCB, transverse direction SFCB and longitudinal direction SFCB.
Preferably, the presstressed reinforcing steel is reinforcing bar, and arrangement is interted in SFCB mesh sheet.
Preferably, the track plates plate body is cuboid, is poured with Reactive Powder Concrete.
Preferably, the longitudinally, laterally SFCB in the SFCB mesh sheet includes in fibrous composite clad and reinforcing bar
Core, the reinforcing bar inner core be Ribbed Bar, fibrous composite clad along Ribbed Bar rib tooth spiral wrap in steel
Outside muscle inner core.
Preferably, the SFCB mesh sheet, wherein transverse direction SFCB extends in the width direction, the cloth below each pair of concrete bearing platform
It sets, longitudinal SFCB extends along track plate body length direction, is arranged symmetrically in longitudinal centre line two sides.
A kind of preparation side of the novel pretensioned prestressing steel-continuous-fiber muscle enhancing without tiny fragments of stone, coal, etc. Reactive Powder Concrete track plates
Method, characterized in that include the following steps:
(1) pre-manufactured steel-Continuous glassfibre reinforced plastics (SFCB)
1) using Ribbed Bar as reinforcing bar inner core, reinforcing bar inner core of polishing removes the longitudinal rib of Ribbed Bar；
2) epoxy resin is sufficiently impregnated using FRP roving；
3) spiral wrap is carried out to reinforcing bar inner core along the rib tooth of Ribbed Bar with the FRP roving after dipping, obtains steel-company
Continuous fibre composite reinforcement；
(2) SFCB mesh sheet is made
Four layers of arranged for interval of SFCB mesh sheet point, are respectively arranged from top to bottom as lateral SFCB, longitudinal direction SFCB, transverse direction SFCB and longitudinal direction
SFCB；
(3) arrangement prestress muscle
Presstressed reinforcing steel uses reinforcing bar, interspersed to be arranged in SFCB mesh sheet；
(4) each presstressed reinforcing steel is connected to tensioning equipment, tensioning is carried out to rod piece after the completion；
(5) after the completion of tension of prestressed tendon in template casting concrete；
(6) after concrete reaches required intensity, presstressed reinforcing steel is put and opens and removes connection, to demolding of track slab；
(7) concrete railway board is conserved.
Preferably, in the step (4), it should check and clear up before tension rod and the connector assembling of tensioning equipment, and is pre-
Stress, which applies, should use automatic Tensioning equipment, and the tensioning muscle tensioning is divided into initial tensioning and whole two stages of tensioning.
Preferably, in the step (5), pouring with concrete is Reactive Powder Concrete, according to specification by cement, silicon
Ash, 0-6mm aggregate, fiber, high efficiency water reducing agent and water are prepared.
Preferably, in the step (6), presstressed reinforcing steel puts Zhang Caiyong Integral tension mode, and it is preferably two-way same for putting Zhang Shunxu
Step, which is put, opens, and forbids ultra stretching, and presstressed reinforcing steel, which is put to open, successively removes connecting rod after the completion, and to demolding of track slab.
Preferably, in the step (7), track plates maintenance preferably uses steam curing, is divided into standing, heating, constant temperature and drop
Warm four-stage, and the thermostatic curing time should be according to the requirement of component demoulding strength, concrete mix situation and environmental condition
It is determined Deng by test.
Beneficial effects of the present invention are as follows:
The present invention avoids the formation of structure closed circuit since it is with excellent insulation performance, to solve nothing
There are still incompatibility problems with ZPW-2000A track circuit for tiny fragments of stone, coal, etc. track plates, increase track circuit transmission distance, improve train
Safety in operation reduces cumbersome insulated working；Since track plates use Reactive Powder Concrete (RPC), component is improved
Bearing capacity, saved material.
Detailed description of the invention
Fig. 1 is that novel pretensioned prestressing steel-continuous-fiber muscle (SFCB) enhances without tiny fragments of stone, coal, etc. Reactive Powder Concrete (RPC) rail
Guidance tape side view；
Fig. 2 is that novel pretensioned prestressing steel-continuous-fiber muscle (SFCB) enhances without tiny fragments of stone, coal, etc. Reactive Powder Concrete (RPC) track plates
Top view；
Fig. 3 is that novel pretensioned prestressing steel-continuous-fiber muscle (SFCB) enhances without tiny fragments of stone, coal, etc. Reactive Powder Concrete (RPC) track plates
Overall situation figure；
Fig. 4 is steel-continuous-fiber muscle (SFCB) mesh sheet and presstressed reinforcing steel figure；
Fig. 5 is steel-continuous-fiber muscle (SFCB) cross-sectional view.
Specific embodiment
The present invention is described in further details with reference to the accompanying drawing.
A kind of novel pretensioned prestressing steel-continuous-fiber muscle (SFCB) enhancing is without tiny fragments of stone, coal, etc. Reactive Powder Concrete (RPC) rail
Guidance tape, including track plates plate body 1, vertically and horizontally steel-continuous-fiber muscle (SFCB) constitute SFCB mesh sheet 2 and presstressed reinforcing steel 3.
As shown in Figs. 1-5, track plates plate body 1 is provided with multiple groups concrete bearing platform 4 and shoulder block 5, fill orifice 6,7 He of inspection hole
Pre-buried insulating sleeve 8；The SFCB mesh sheet 2 that vertically and horizontally steel-continuous-fiber muscle (SFCB) is constituted is combined closely with track plates, when arrangement
Divide four layer arrangements, be respectively as follows: the through-thickness in track plates plate body and be sequentially arranged at intervals with lateral SFCB(9 from top to bottom),
Longitudinal SFCB(10), transverse direction SFCB(9) and longitudinal direction SFCB(10), lateral SFCB(9) extend in the width direction, longitudinal SFCB(10)
Extend along track plate body length direction；Presstressed reinforcing steel 3 is reinforcing bar, using bidirectional arrangements in length and breadth, along track plates length and width
Direction is bidirectional pre-tensioned.
Track plates plate body 1 be cuboid, poured with Reactive Powder Concrete (RPC), be provided with multiple groups concrete bearing platform 4 and
Shoulder block 5, fill orifice 6, inspection hole 7 and pre-buried insulating sleeve 8.Multiple groups concrete bearing platform 4 and shoulder block 5 are indulged above track plates plate body
It is arranged symmetrically to center line two sides, on the longitudinal, the pre-buried setting of insulating sleeve 8 is mixed for fill orifice 6 and the setting of inspection hole 7
On solidifying cushion cap.
SFCB in steel-continuous-fiber muscle (SFCB) mesh sheet 2 includes in fibrous composite (FRP) clad 91 and reinforcing bar
Core 92, reinforcing bar inner core 92 be Ribbed Bar, FRP clad 91 along Ribbed Bar rib tooth spiral wrap in reinforcing bar inner core 92
It is external.The interval vertical, horizontal SFCB of SFCB mesh sheet 2 is arranged, lateral SFCB(9) extend in the width direction, it is held in each pair of concrete
Platform arranged beneath, longitudinal SFCB(10) extend along track plate body length direction, it is arranged symmetrically in longitudinal centre line two sides.
Presstressed reinforcing steel 3 uses reinforcing bar, bidirectional pre-tensioned along track plates length and width direction, and cloth is interted in SFCB mesh sheet 2
It sets.
Above-mentioned novel pretensioned prestressing steel-continuous-fiber muscle (SFCB) enhancing is prepared without tiny fragments of stone, coal, etc. activity powder using following methods
Last concrete (RPC) track plates:
(1) pre-manufactured steel-Continuous glassfibre reinforced plastics (SFCB)
Using Ribbed Bar as reinforcing bar inner core 92, the longitudinal rib of polishing removal Ribbed Bar, using fibrous composite (FRP)
Roving is sufficiently impregnated epoxy resin, and the FRP roving after using dipping is as FRP clad 91 along the rib of Ribbed Bar
Tooth carries out spiral wrap to reinforcing bar inner core 92, obtains steel-continuous-fiber composite-rib, and wherein FRP can choose basalt fibre, virtue
Synthetic fibre fiber, glass fibre, pbo fiber, Dyneema fiber.
(2) SFCB mesh sheet layer 2 is made
Four layers of arranged for interval of SFCB mesh sheet point are respectively arranged for lateral SFCB(9), longitudinal direction SFCB(10), laterally from top to bottom
SFCB(9) and longitudinal direction SFCB(10), lateral SFCB(9) extend in the width direction, it is longitudinal in each pair of concrete bearing platform arranged beneath
SFCB(10) extend along track plate body length direction, be arranged symmetrically in longitudinal centre line two sides.
(3) arrangement prestress muscle 3
Presstressed reinforcing steel 3 uses reinforcing bar, bidirectional pre-tensioned along track plates length and width direction, interspersed to be arranged in SFCB mesh sheet 2.
(4) each presstressed reinforcing steel 3 is connected to tensioning equipment, tensioning is carried out to rod piece after the completion.
It should check and clear up before tension rod and connector assembling, and prestress application should use automatic Tensioning equipment, tensioning
The tensioning of muscle is divided into initial tensioning and whole two stages of tensioning.
(5) after the completion of 3 tensioning of presstressed reinforcing steel in template casting concrete
Pouring with concrete is Reactive Powder Concrete (RPC), according to specification by cement, silicon ash, and 0-6mm aggregate, fiber, efficiently
Water-reducing agent and water are prepared.
(6) after concrete reaches some strength, presstressed reinforcing steel 3 is put and opens and remove connection, it is de- to track plates plate body 1
Mould.
Presstressed reinforcing steel 3 puts Zhang Caiyong Integral tension mode, and putting Zhang Shunxu is preferably that bi-directional synchronization is put, forbids ultra stretching, in advance
Stress rib 3 is put to open successively removes connecting rod after the completion, and demoulds to track plates 1.
(7) concrete railway board 1 is conserved.
Track plates maintenance preferably uses steam curing, is divided into standing, heating, constant temperature and cooling four-stage, and thermostatic curing
Time should be determined according to the requirement of component demoulding strength, concrete mix situation and environmental condition etc. by test.
Claims (10)
1. a kind of novel pretensioned prestressing steel-continuous-fiber muscle enhancing is without tiny fragments of stone, coal, etc. Reactive Powder Concrete track plates, characterized in that
Including track plates plate body, SFCB mesh sheet and presstressed reinforcing steel, the track plates plate body be provided with multiple groups concrete bearing platform, fill orifice,
Inspection hole and pre-buried insulating sleeve；The concrete bearing platform both ends are respectively symmetrically equipped with shoulder block, and multiple groups concrete bearing platform is in track
Longitudinal centre line two sides are arranged symmetrically at the top of plate plate body, and the fill orifice and inspection hole setting are on the longitudinal, described pre-
It buries insulating sleeve and is built in concrete bearing platform；SFCB mesh sheet is equipped in the track plate body, SFCB mesh sheet is by vertical, horizontal SFCB
Arranged for interval is constituted, and lateral SFCB extends along track plates plate body width direction, and longitudinal SFCB prolongs along track plate body length direction
It stretches；The presstressed reinforcing steel is bidirectional pre-tensioned along track plates length and width direction, and interts arrangement in SFCB mesh sheet.
2. a kind of novel pretensioned prestressing steel-continuous-fiber muscle enhancing according to claim 1 is mixed without tiny fragments of stone, coal, etc. reactive powder
Solidifying soil track plates, characterized in that the SFCB mesh sheet four layers of arranged for interval of through-thickness point in track plates plate body, from up to
Under be sequentially arranged at intervals with lateral SFCB, longitudinal direction SFCB, transverse direction SFCB and longitudinal direction SFCB.
3. a kind of novel pretensioned prestressing steel-continuous-fiber muscle enhancing according to claim 1 is mixed without tiny fragments of stone, coal, etc. reactive powder
Solidifying soil track plates, characterized in that the presstressed reinforcing steel is reinforcing bar.
4. a kind of novel pretensioned prestressing steel-continuous-fiber muscle enhancing according to claim 1 is mixed without tiny fragments of stone, coal, etc. reactive powder
Solidifying soil track plates, characterized in that the track plates plate body is cuboid, is poured with Reactive Powder Concrete.
5. a kind of novel pretensioned prestressing steel-continuous-fiber muscle enhancing according to claim 1 is mixed without tiny fragments of stone, coal, etc. reactive powder
Solidifying soil track plates, characterized in that the longitudinally, laterally SFCB in the SFCB mesh sheet includes fibrous composite clad and steel
Muscle inner core, the reinforcing bar inner core are Ribbed Bar, rib tooth spiral wrap of the fibrous composite clad along Ribbed Bar
Outside reinforcing bar inner core.
6. a kind of novel pretensioned prestressing steel-continuous-fiber muscle enhancing according to claim 1 is mixed without tiny fragments of stone, coal, etc. reactive powder
Solidifying soil track plates, characterized in that the SFCB mesh sheet, wherein transverse direction SFCB extends in the width direction, in each pair of concrete bearing platform
Arranged beneath, longitudinal SFCB extend along track plate body length direction, are arranged symmetrically in longitudinal centre line two sides.
7. a kind of novel pretensioned prestressing steel-continuous-fiber muscle enhancing according to claim 1 to 6 is without the tiny fragments of stone, coal, etc.
The preparation method of Reactive Powder Concrete track plates, characterized in that include the following steps:
(1) pre-manufactured steel-Continuous glassfibre reinforced plastics (SFCB)
1) using Ribbed Bar as reinforcing bar inner core, reinforcing bar inner core of polishing removes the longitudinal rib of Ribbed Bar；
2) epoxy resin is sufficiently impregnated using FRP roving；
3) spiral wrap is carried out to reinforcing bar inner core along the rib tooth of Ribbed Bar with the FRP roving after dipping, obtains steel-company
Continuous fibre composite reinforcement；
(2) SFCB mesh sheet is made
Four layers of arranged for interval of SFCB mesh sheet point, are respectively arranged from top to bottom as lateral SFCB, longitudinal direction SFCB, transverse direction SFCB and longitudinal direction
SFCB；
(3) arrangement prestress muscle
Presstressed reinforcing steel uses reinforcing bar, interspersed to be arranged in SFCB mesh sheet；
(4) each presstressed reinforcing steel is connected to tensioning equipment, tensioning is carried out to rod piece after the completion；
(5) after the completion of tension of prestressed tendon in template casting concrete；
(6) after concrete reaches required intensity, presstressed reinforcing steel is put and opens and removes connection, to demolding of track slab；
(7) concrete railway board is conserved.
8. a kind of novel pretensioned prestressing steel-continuous-fiber muscle enhancing according to claim 7 is mixed without tiny fragments of stone, coal, etc. reactive powder
The preparation method of solidifying soil track plates, characterized in that in the step (4), answered before tension rod and the connector assembling of tensioning equipment
It checks and clears up, and prestress application should use automatic Tensioning equipment, the tensioning muscle tensioning be divided into initial tensioning and whole tensioning two
A stage.
9. a kind of novel pretensioned prestressing steel-continuous-fiber muscle enhancing according to claim 7 is mixed without tiny fragments of stone, coal, etc. reactive powder
The preparation method of solidifying soil track plates, characterized in that in the step (5), pouring with concrete is Reactive Powder Concrete, according to
Specification is prepared by cement, silicon ash, 0-6mm aggregate, fiber, high efficiency water reducing agent and water.
10. a kind of novel pretensioned prestressing steel-continuous-fiber muscle enhancing according to claim 7 is mixed without tiny fragments of stone, coal, etc. reactive powder
The preparation method of solidifying soil track plates, characterized in that in the step (6), presstressed reinforcing steel puts Zhang Caiyong Integral tension mode, puts and opens
Sequence preferably bi-directional synchronization, which is put, opens, and forbids ultra stretching, and presstressed reinforcing steel is put to open successively removes connecting rod after the completion, and de- to track plates
Mould.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910860022.8A CN110485215A (en) | 2019-09-11 | 2019-09-11 | A kind of novel pretensioned prestressing steel-continuous-fiber muscle enhancing is without tiny fragments of stone, coal, etc. Reactive Powder Concrete track plates and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910860022.8A CN110485215A (en) | 2019-09-11 | 2019-09-11 | A kind of novel pretensioned prestressing steel-continuous-fiber muscle enhancing is without tiny fragments of stone, coal, etc. Reactive Powder Concrete track plates and preparation method thereof |
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| Publication Number | Publication Date |
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| CN110485215A true CN110485215A (en) | 2019-11-22 |
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| CN201910860022.8A Pending CN110485215A (en) | 2019-09-11 | 2019-09-11 | A kind of novel pretensioned prestressing steel-continuous-fiber muscle enhancing is without tiny fragments of stone, coal, etc. Reactive Powder Concrete track plates and preparation method thereof |
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