CN102628242A - Plate-type ballastless track concrete track plate, manufacturing method thereof, and stretching device thereof - Google Patents

Plate-type ballastless track concrete track plate, manufacturing method thereof, and stretching device thereof Download PDF

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Publication number
CN102628242A
CN102628242A CN2012101312196A CN201210131219A CN102628242A CN 102628242 A CN102628242 A CN 102628242A CN 2012101312196 A CN2012101312196 A CN 2012101312196A CN 201210131219 A CN201210131219 A CN 201210131219A CN 102628242 A CN102628242 A CN 102628242A
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CN
China
Prior art keywords
plate
longitudinal prestressing
steel bar
reinforcing steel
earlier
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Application number
CN2012101312196A
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Chinese (zh)
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CN102628242B (en
Inventor
钱振地
徐明新
江成
王继军
税卓平
张玉光
周才华
陈幼林
喻丕金
于晓明
张天明
王红亮
翟勇
汪永进
林晓波
刘延龙
贾鹏程
王梦
赵勇
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China Railway 23rd Bureau Group Co Ltd
Second Engineering Co Ltd of China Railway 23rd Bureau Group Co Ltd
Rail Transit Engineering Co Ltd of China Railway 23rd Bureau Group Co Ltd
Original Assignee
China Railway 23rd Bureau Group Co Ltd
Second Engineering Co Ltd of China Railway 23rd Bureau Group Co Ltd
Rail Transit Engineering Co Ltd of China Railway 23rd Bureau Group Co Ltd
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Application filed by China Railway 23rd Bureau Group Co Ltd, Second Engineering Co Ltd of China Railway 23rd Bureau Group Co Ltd, Rail Transit Engineering Co Ltd of China Railway 23rd Bureau Group Co Ltd filed Critical China Railway 23rd Bureau Group Co Ltd
Priority to CN201210131219.6A priority Critical patent/CN102628242B/en
Priority to CN201410067809.6A priority patent/CN103802211B/en
Publication of CN102628242A publication Critical patent/CN102628242A/en
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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
    • 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

Abstract

The invention relates to a plate-type ballastless track concrete track plate. The plate-type ballastless track concrete track plate comprises a plate body, a plurality of pretensioned longitudinal prestressed reinforcements are arranged in the plate body, the pretensioned longitudinal prestressed reinforcements extend in the length direction of the plate body, the pretensioned longitudinal prestressed reinforcements are bonded with concrete in the plate body closely, and the pretensioned longitudinal prestressed reinforcements are anchored with the plate body. Compared with existing pretensioned plates, the anchoring strength shortage problem between the plate body and the pretensioned longitudinal prestressed reinforcements occurs when the plate body and the pretensioned longitudinal prestressed reinforcements are connected only by bond stress is solved, because end portions of the pretensioned longitudinal prestressed reinforcements are anchored with the track plate by using an anchoring device in production. By establishing a prestressed system on the end portions of the plate body in an anchoring manner, strength of the concrete located on the end portions of the plate body is enhanced, and service life of the plate body is prolonged.

Description

A kind of plate-type ballastless track concrete railway board, manufacturing approach and tensioning equipment thereof
Technical field
The present invention relates to a kind of fragment-free track slab, manufacturing approach and tensioning equipment, especially a kind of plate-type ballastless track concrete railway board, manufacturing approach and tensioning equipment.
Background technology
In the manufacturing process of CRTS series plate-type ballastless track concrete railway board (hereinafter to be referred as " track plate "); For fear of strain cracking; Usually need mode through stretch-draw, anchoring; Apply compressive stress in advance to the track plate and form prestressed reinforced concrete, with the crack resistance and the rigidity that improve member and increase its durability.
In the prior art, mainly adopt pre-tensioning system, two kinds of job practicess of post stretching to make prestressed reinforced concrete.
1, pre-tensioning system construction
Pre-tensioning system construction is meant after prestressed reinforcement of tensioning, the job practices of concreting again.
The key step of pre-tensioning system construction is following: at first before concreting at tensioned prestressing bar on the pedestal or on the punching block, and be temporarily fixed at the presstressed reinforcing steel that anchor clamps finish stretch-draw on the crossbeam of pedestal or on the punching block; Concreting then, more than 70% of curing concrete to design strength grade loosens presstressed reinforcing steel.
The track plate that adopts the pre-tensioning system construction to process; Bonded the pre-tensioned prestressing reinforcing bar at the track intralamellar part through concrete; And the pre-tensioned prestressing reinforcing bar is in the not anchoring of end of track plate; Its reason is: the track plate that the pre-tensioning system construction is processed is to stop the prestressed reinforcement elastic recoil and make concrete bear compressive pre-stress with the bonding force between prestressed reinforcement and the concrete, just because of such process characteristic, after stretch-draw is accomplished; Only need prestressed reinforcement to be cut concordant getting final product, need not anchoring separately along track plate end face.
Therefore, the track plate main weak point structurally that adopts the pre-tensioning system construction to process is: the prestressed reinforcement of track plate end exposes, and the concrete around it is prone to form the capillary porosity and take place loose.
Especially after these capillary porosity suctions; Also can make prestressed reinforcement make moist corrosion, cause the concrete of track plate end and the compressive pre-stress between its inner prestressed reinforcement to reduce gradually; Even the concrete of track plate end is come off because of the compressive pre-stress forfeiture, so the track plate durability of this spline structure and reliability are not good.And such defective, adopting traditional mode poor effect of smearing rust preventive coating, its reason is that prestressed reinforcement can receive high-frequency vibration in the process of making and using, the rust preventive coating of smearing is easy to wear, and operation, maintenance cost are higher.
In addition, the track intralamellar part that adopts the pre-tensioning system construction to process is not provided with structure reinforcing bars, and the tired structural member high for life requirement is irrational.
2, post-tensioned construction
Post-tensioned construction is meant: after concreting track plate is accomplished stripping process, and the job practices of prestressed reinforcement of tensioning again.
The key step of post-tensioned construction is following:
A, build concrete members;
B, treat that concrete reaches desired strength after, be supported on the concrete component end with jack, with no-cohesive prestressed reinforcement stretch-draw, make member compressed by counter-force;
C, to be tensionedly behind the control pulling force, promptly with the anchoring nut no-cohesive prestressed reinforcement is anchored on the concrete component, concrete acquisition also keeps its compressive pre-stress;
The track plate that adopts post stretching to process; Be to rely on the anchoring nut that is positioned at the prestressed reinforcement end to transmit compressive pre-stress when stretch-draw, the stress that the prestressed reinforcement end receives is very big, under the effect of the tired shock loading of high strength; Fragile and the fracture; Cause prestressed reinforcement to eject, the deformation of track plate has a strong impact on train safe.
And post-tensioned construction needs to carry out stretch-draw respectively separately to each track plate, and worker's length consuming time, efficient are low.
The track plate that the employing post-tensioned construction is processed structurally is provided with the anchor recess hole in the end of track plate, and in order in stretching process, to lay jack, the profile of the internal diameter in anchor recess hole and stretch-draw jack is suitable.
Structurally there is following weak point in the track plate that adopts post-tensioned construction to process:
Because the needs that jack is installed need be satisfied in the anchor recess hole; Therefore the size of anchor recess is bigger usually; Cause the gauge of anchor recess hole periphery residual concrete less, during in process of production with operation under the effect of train high strength fatigue load, the concrete easy of crack; Cause track plate crackle damaged, had a strong impact on the application life of track plate.
Summary of the invention
The technical problem that the present invention will solve is to overcome the above-mentioned deficiency of prior art, and the plate-type ballastless track concrete railway board of a kind of end concrete difficult drop-off, longer service life is provided.
For solving the problems of the technologies described above, the invention provides following technical scheme:
A kind of plate-type ballastless track concrete railway board; Comprise plate body; Be provided with some elder generations in the said plate body and open the longitudinal prestressing reinforcing bar; The length direction extension of longitudinal prestressing reinforcing bar along plate body opened by said elder generation, and the concrete that said elder generation opens in longitudinal prestressing reinforcing bar and the plate body is combined closely, and longitudinal prestressing reinforcing bar and plate body anchoring are opened by said elder generation.
Opening plate with existing elder generation compares; Because when producing; To open earlier longitudinal prestressing end reinforced with the track plate between use the ground tackle anchoring, solved the problem of anchoring strength deficiency when only relying on bond stress between plate body and the elder generation longitudinal prestressing reinforcing bar and being connected, set up prestress system in the plate body end through the mode of anchoring; Increased the concrete intensity that is positioned at the plate body end, the application life of having improved plate body.
Compare with existing posttension plate, carry out stretch-draw because elder generation's longitudinal prestressing reinforcing bar need not to connect jack separately in the end of track plate, the anchor recess hole dimension of anchoring place need not with the size of jack end suitable; Therefore; The size of the diameter in anchor recess hole and degree of depth anchor recess in the existing posttension plate, thus the thickness of anchor recess hole surrounding concrete increased greatly, and concrete is not easy to crack; Significantly increased application life; And before anchoring, both existing bond stress between pre-tensioned prestressing reinforcing bar and the concrete, the mechanical property of track plate is better;
Need to prove that the elder generation among the present invention opens the longitudinal prestressing reinforcing bar and is meant the pre-tensioned prestressing reinforcing bar that extends and be parallel to the longitudinal centre line of plate body along the length direction of plate body; Be different from common prestressed reinforcement; The pre-tensioned prestressing reinforcing bar is the prestressed reinforcement that adopts pre-tensioning system to make; Before the concreting of plate body, accomplish prestressed stretch-draw; The concrete of plate body is formed by concreting at its first Zhang Yihou again, so pre-tensioned prestressing reinforcing bar and concrete are more fully, combine densely, have bigger bond stress.
In addition; Because the difference of bond stress between the function of anchor plate and prestressed reinforcement and the concrete, the anchor plate of stressed more traditional posttension plate of anchor plate is stressed little among the present invention, and is little to restrictions such as the size of anchor plate, connected modes; Therefore; The anchor plate that can select for use size more to simplify, thus the thickness of anchor recess surrounding concrete further increased, and improve its application life.
As preferably; Also be provided with some elder generations in the said plate body and open transverse prestressed reinforcing steel bar; The width extension of transverse prestressed reinforcing steel bar along plate body opened by said elder generation, and the concrete that said elder generation opens in transverse prestressed reinforcing steel bar and the plate body is combined closely, and transverse prestressed reinforcing steel bar and plate body anchoring are opened by said elder generation.
With a longitudinal prestressing reinforcing bar is corresponding earlier; Some elder generations are set in plate body open transverse prestressed reinforcing steel bar; And be anchored in the plate body end equally and be coated on plate body inside; Further optimized orbital intralamellar part stressing conditions, and open the similar effect of longitudinal prestressing reinforcing bar earlier in laterally playing and arranging of plate body.
 
As preferably; Said elder generation opens the longitudinal prestressing reinforcing bar and opens transverse prestressed reinforcing steel bar earlier all through anchor plate and plate body anchoring; Said anchor plate is provided with internal thread hole; Said elder generation opens the end of longitudinal prestressing reinforcing bar and is provided with external thread section with the end of opening transverse prestressed reinforcing steel bar earlier, and said elder generation opens the longitudinal prestressing reinforcing bar and opens transverse prestressed reinforcing steel bar earlier and all is threaded with anchor plate, and said anchor plate is connected with the plate body cassette.
Anchor plate in the existing posttension track plate need bear whole stress of prestressed reinforcement stretch-draw; Not only on syndeton; Must adopt the higher connected mode of intensity; And the size in anchor recess hole must not be less than the head dimensions of stretch-draw jack, and is higher for the size restrictions in anchor plate, anchor recess hole, reduced indirectly anchor recess hole surrounding concrete thickness, influence application life of track plate.The present invention compares with existing posttension track plate anchor plate; Because the difference of bond stress between the function of anchor plate and prestressed reinforcement and the concrete; Anchor plate mainly is to be used for locking among the present invention, and the ground tackle of stressed more traditional posttension plate is little a lot, and is little for the restriction of the syndeton of anchor plate; Directly prestressed reinforcement is threadedly connected on the internal thread hole of anchor plate and already satisfies stressed demand; Simultaneously, anchor plate is built the back and on plate body, is formed the boss shape mounting structure along the radially protrusion of opening longitudinal prestressing reinforcing bar, elder generation's transverse prestressed reinforcing steel bar earlier; Put that the Zhang Yihou anchor plate is interfered with the retraction trend of prestressed reinforcement end and with the boss shape mounting structure of plate body and cassette is connected, need not to set up in addition locking nut, block that parts such as awl can be locked, anchoring.In addition, also very little to the size restrictions of anchor plate, the size of anchor plate is littler, more simplify.
Here, most preferred, a longitudinal prestressing reinforcing bar and elder generation's transverse prestressed reinforcing steel bar all are threaded with the internal thread hole of anchor plate through prestressed reinforcement termination portion screw thread earlier.
Adopt the connected mode of prestressed reinforcement termination portion's screw thread and anchor plate, compare with the employed anchor plate of posttension plate, the diameter of anchor recess has reduced more than 60% and the degree of depth in anchor recess hole has also reduced, and has saved encapsulant and connection is more firm.
 
As preferably, said elder generation opens the longitudinal prestressing reinforcing bar, and opens a transverse prestressed reinforcing steel bar earlier and all be packaged in the plate body.
The end of prestressed reinforcement all is arranged on the inside of plate body; That is: open earlier the longitudinal prestressing reinforcing bar, and the outer end of opening transverse prestressed reinforcing steel bar earlier all be not exposed to the plate body outside; Having avoided opening the longitudinal prestressing reinforcing bar because of the elder generation of track plate end exposes the capillary porosity that produces, causes the concrete that is positioned at track plate end to come off; And slowed down the situation of prestressed reinforcement end corrosion; And then avoided the bond stress between prestressed reinforcement and the plate body to reduce; Prevented to form hole between vibratory process and dither environment lower prestress reinforcing bar in the use and the plate body in manufacture process, thus improved the track plate overall performance and and durability, increase the service life.
Need to prove: the encapsulation here; Be meant that plate body will open earlier the longitudinal prestressing reinforcing bar, and open a transverse prestressed reinforcing steel bar earlier and all be coated on wherein, and make open earlier the longitudinal prestressing reinforcing bar, and the end of opening transverse prestressed reinforcing steel bar earlier all be not exposed to the outside of plate body.
 
As preferably, also be provided with cage of reinforcement in the said plate body, said cage of reinforcement is formed by some nonprestressed reinforcement colligations.
In the track plate that existing employing pre-tensioning system construction makes; All do not see cage of reinforcement is set; Extremely unreasonable for the such high-durability demand of track plate, high tired structural member, set up cage of reinforcement after, can improve the bulk strength and the shock resistance of track plate.
 
As preferably, said elder generation opens the longitudinal prestressing reinforcing bar and opens a transverse prestressed reinforcing steel bar earlier and pass cage of reinforcement along the vertical and horizontal of plate body respectively.
The mode that adopts prestressed structure and non-prestressed structure to organically combine, the bulk strength and the shock resistance of track plate are more excellent.
Need to prove, in the cross-under process,, then should shape, the position of nonprestressed reinforcement be adjusted slightly, with the cross-under of adaptive prestressed reinforcement if not prestressed reinforcement has stopped the layout of prestressed reinforcement.
 
As preferably, said anchor plate is cylindric, and the diameter of said anchor plate is 25mm～33mm; Be provided with circular arc chamfering between the outer face of said anchor plate and the face of cylinder, said circular arc chamfering radius is 3mm～8mm.Adopt such structure, situation such as can prevent further that stress from concentrating causes concrete cracks on the track plate, comes off.
 
As preferably, said elder generation opens transverse prestressed reinforcing steel bar and in plate body, goes to upper and lower two rows and distribute; Said elder generation opens the longitudinal prestressing reinforcing bar and in plate body, goes to upper and lower two row's distributions.
The purpose that existing track plate is provided with prestressed reinforcement is that thermal stresses is worked, prevents concrete in tension stress and ftractures, and therefore laterally only is provided with single transverse prestressed reinforcing steel bar along the track plate; Two rows that in the vertical direction of the present invention is adjacent open the longitudinal prestressing reinforcing bar outside earlier; The mode that symmetric arrangement two rows open transverse prestressed reinforcing steel bar earlier; Improved the shock resistance of track plate under the thump condition of bearing larger axis weight and high frequency capacity; And its bulk strength is significantly improved, thereby prolonged the application life of track plate.
 
As preferably, said two row's longitudinal prestressing reinforcing bars are arranged at said two horizontal rows between prestressed reinforcement.
The purpose that existing track plate is provided with prestressed reinforcement is that thermal stresses is worked, prevents concrete in tension stress and ftractures, and therefore laterally only is provided with single transverse prestressed reinforcing steel bar along the track plate;
Two horizontal rows are distributed in upper and lower two rear flank of longitudinal prestressing reinforcing bar to prestressed reinforcement; The shock resistance of track plate under the thump condition of bearing the heavy and high frequency capacity of larger axis, and bulk strength significantly improve, thereby prolonged application life of track plate.
 
The manufacturing approach of above-mentioned plate-type ballastless track concrete railway board may further comprise the steps:
A, the punching block of track plate is in place;
B, work out cage of reinforcement, longitudinal prestressing reinforcing bar and transverse prestressed reinforcing steel bar are penetrated to cage of reinforcement with nonprestressed reinforcement;
C, hang in cage of reinforcement, longitudinal prestressing reinforcing bar and transverse prestressed reinforcing steel bar in the punching block together; And on the end of longitudinal prestressing reinforcing bar and transverse prestressed reinforcing steel bar, anchor plate is installed; Anchor plate is provided with internal thread hole; On longitudinal prestressing reinforcing bar and transverse prestressed reinforcing steel bar, be equipped with external thread section, longitudinal prestressing reinforcing bar, transverse prestressed reinforcing steel bar all are threaded with anchor plate;
D, be connected longitudinal prestressing reinforcing bar, transverse prestressed reinforcing steel bar in place with tensioning system with connecting rod;
E carries out single initial tensioning to longitudinal prestressing reinforcing bar, transverse prestressed reinforcing steel bar;
F, respectively transverse prestressed reinforcing steel bar, longitudinal prestressing reinforcing bar are carried out synchronous tension, form and open transverse prestressed reinforcing steel bar earlier and open the longitudinal prestressing reinforcing bar earlier;
G, concreting;
H, stream curing;
I, when concrete intensity reach design strength 80% after, put and open;
J, dismounting connecting rod;
K, the demoulding;
L, sealing off and covering anchorage.
Adopt such manufacturing approach, the track plate before building completion preset anchor recess and prestressed reinforcement lay the duct, the bond stress between tensioning process simple and prestressed reinforcement and the concrete is bigger, the intensity of track plate is higher; In addition, it is littler to accomplish the anchor recess size that on the track plate, forms after the stretch-draw, thereby has increased the concrete thickness around the anchor recess, has further improved the intensity of track plate.
As preferably, in the steps d, an end and the tensioning system of said connecting rod are fixed, and the other end of said connecting rod is threaded with opening the longitudinal prestressing reinforcing bar earlier or open a transverse prestressed reinforcing steel bar earlier.
Through connecting rod to stretch-drawing beam with open earlier transverse prestressed reinforcing steel bar, open a longitudinal prestressing reinforcing bar earlier and carry out transition and be connected; Make the size in anchor recess hole need not with stretch-draw jack end size adaptive; The anchor recess size that forms on the track plate is littler, is satisfying under the condition of bonding strength, and the anchor recess aperture can reduce more than 60% usually; The degree of depth in hole has also reduced, and has further strengthened the concrete thickness around the anchor recess and has improved the intensity of track plate.
 
A kind of tensioning equipment that is used to make above-mentioned plate-type ballastless track concrete railway board, comprising that by several and the suitable punching block of plate shape the longitudinal prestressing reinforcing bar is opened by said elder generation, opening a transverse prestressed reinforcing steel bar earlier, all to be arranged at each punching block inner, said punching block is along laterally, vertically being arranged in the punching block matrix; The longitudinal prestressing reinforcing bar is opened by said each elder generation, the two ends of a transverse prestressed reinforcing steel bar are provided with connecting rod, the coaxial fixed connection of connecting rod in said punching block matrix between adjacent two punching blocks earlier; The connecting rod that is positioned at the said punching block matrix outside is fixedly connected with tensioning system; The longitudinal prestressing reinforcing bar is opened by said each elder generation, the both ends of a transverse prestressed reinforcing steel bar also are provided with anchor plate earlier, and said anchor plate radially protrudes from elder generation's longitudinal prestressing reinforcing bar or opens transverse prestressed reinforcing steel bar earlier.
Through above-mentioned tensioning equipment the track plate is carried out the stretch-draw manufacturing; Can once carry out integral tension, improve the production efficiency of tensioning process, simultaneously a plurality of track plates; Through being arranged at anchor plate on the presstressed reinforcing steel, evagination; At prestressed reinforcement of tensioning and concreting, maintenance, put Zhang Yihou, the retraction trend through prestressed reinforcement is from anchor; The anchoring function of prestressed reinforcement end in the time of the high bond stress that makes that prestressed reinforcement in the track plate of processing has that pre-tensioning system brings, when having post stretching concurrently and making, thus the bulk strength of track plate improved
As preferably, said anchor plate is threaded with opening the longitudinal prestressing reinforcing bar earlier or open a transverse prestressed reinforcing steel bar earlier; Adopt such structure, be convenient to assembling and install.
As preferably, said tensioning system comprises crossbeam and stretch-draw jack, and the connecting rod that is positioned at the punching block matrix outside all is fixedly connected with crossbeam, and said stretch-draw jack drive crossbeam edge is horizontal or vertically move.Adopt such structure, can be to some prestressed reinforcement simultaneous tensions, operating efficiency is high.
The invention has the beneficial effects as follows: open a plate with elder generation and compare; Owing to formerly open between the end reinforced and track plate of longitudinal prestressing and use the anchor plate anchoring; Having avoided opening the longitudinal prestressing reinforcing bar because of the elder generation of track plate end exposes the capillary porosity that produces, causes the concrete that is positioned at track plate end to come off, with the application life of advancing the track plate.
Compare with existing posttension plate; Because elder generation's longitudinal prestressing reinforcing bar need not to connect jack separately in the end of track plate and carries out stretch-draw, the ground tackle size of anchoring place need not with the size of jack end suitable, therefore; The diameter in anchor recess hole and the degree of depth are much smaller than the size that has anchor recess in the posttension plate now; Thereby increased the thickness of anchor recess hole surrounding concrete greatly, concrete is not easy to crack, has significantly increased application life; And owing between pre-tensioned prestressing reinforcing bar and the concrete bond stress is arranged, the mechanical property of track plate is better.
Description of drawings
Fig. 1 is the structural representation of pre-tensioned prestressing reinforcement placement among the present invention;
Fig. 2 is the cross section structure sketch map of pre-tensioned prestressing reinforcement placement among the present invention;
Fig. 3 is the syndeton sketch map of pre-tensioned prestressing reinforcing bar among the present invention and anchor plate;
Fig. 4 is the structural representation of anchor plate among the present invention;
Fig. 5 is for opening longitudinal prestressing steel bar connecting structure sketch map earlier in the non-fragment orbit concrete railway board of the present invention;
Fig. 6 is for opening transverse prestressed reinforcing steel bar syndeton sketch map earlier in the non-fragment orbit concrete railway board of the present invention;
Fig. 7 is the connected mode sketch map of plate-type ballastless track concrete track board prestress tension among the present invention;
Fig. 8 is the sketch map of a kind of embodiment of the connected mode of plate-type ballastless track concrete track board prestress tension among the present invention;
Fig. 9 is the local enlarged diagram of A part among Fig. 8;
Figure 10 is the local enlarged diagram of B part among Fig. 8;
Figure 11 is the local enlarged diagram of C part among Fig. 8;
Figure 12 is the local enlarged diagram of D part among Fig. 8;
Figure 13 is the local enlarged diagram of E part among Fig. 8.
Wherein, Reference numeral is: 1 is plate body; 1-1 is the longitudinal centre line of plate body; 1-2 is the cross central line of plate body; 2 is to open the longitudinal prestressing reinforcing bar earlier; 3 is to open transverse prestressed reinforcing steel bar earlier; 4 is anchor plate; 4a is an internal thread hole; 5 is external thread section; 6 is punching block; 7 is connecting rod; 8 is tensioning system; 8a is a crossbeam; 8b is the stretch-draw jack; 9 is pedestal.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is further described.
Embodiment of the present invention is not limited to following examples, and the various variations of under the prerequisite that does not break away from aim of the present invention, making all belong within protection scope of the present invention.
Embodiment 1
As depicted in figs. 1 and 2; Present embodiment plate-type ballastless track concrete railway board comprises plate body 1; Be provided with some elder generations in the plate body 1 and open longitudinal prestressing reinforcing bar 2; Open longitudinal prestressing reinforcing bar 2 earlier and be meant the prestressed reinforcement that extends and be parallel to the longitudinal centre line 1-1 of plate body along the length direction of plate body 1, be different from common prestressed reinforcement, open longitudinal prestressing reinforcing bar 2 earlier and before the concreting of plate body 1, accomplish prestressed stretch-draw; Opening longitudinal prestressing reinforcing bar 2 earlier combines closely with the concrete in the plate body 1; Because the concrete of plate body 1 is formerly to open longitudinal prestressing reinforcing bar 2 to put just to build before opening and form, put Zhang Houxian open longitudinal prestressing reinforcing bar 2 retraction trend can with concrete more fully, combine densely, thereby have bigger bond stress.After the concreting of plate body 1 and accomplishing concrete curing; To open longitudinal prestressing reinforcing bar 2 earlier and pass through the tensioning system anchoring with plate body 1; Be fixedly connected through tensioning system between the end of promptly opening earlier longitudinal prestressing reinforcing bar 2 and the plate body 1; Thereby solved plate body 1 and the problem of opening strength deficiency when only relying on bond stress between the longitudinal prestressing reinforcing bar 2 and being connected earlier, and the mode through anchoring, set up prestress system in plate body 1 end; Significantly increase the concrete intensity that is positioned at plate body 1 end, improved the application life of plate body 1.
Embodiment 2
As depicted in figs. 1 and 2, present embodiment plate-type ballastless track concrete railway board is provided with some elder generations and opens in the longitudinal prestressing reinforcing bar 2 in plate body 1, in plate body 1, also be provided with some elder generations and open transverse prestressed reinforcing steel bar 3.
Open transverse prestressed reinforcing steel bar 3 earlier and be meant the prestressed reinforcement that extends and be parallel to the cross central line 1-2 of plate body along the width of plate body 1; Opening transverse prestressed reinforcing steel bar 3 earlier also is before the concreting of plate body 1, to accomplish prestressed stretch-draw, opens transverse prestressed reinforcing steel bar 3 earlier and combines closely with the concrete in the plate body 1.
Similar with the effect of opening 2 anchorings of longitudinal prestressing reinforcing bar earlier; Because the concrete of plate body 1 is formerly to open transverse prestressed reinforcing steel bar 3 to put Zhang Yihou and build and form; Open earlier transverse prestressed reinforcing steel bar 3 in retraction process can with concrete more fully, combine densely, thereby have bigger bond stress.After the concreting of plate body 1 is accomplished; To open transverse prestressed reinforcing steel bar 3 and plate body 1 anchoring earlier; Be fixedly connected through anchoring piece between the end of promptly opening earlier transverse prestressed reinforcing steel bar 3 and the plate body 1; Thereby solved plate body 1 and the problem of opening strength deficiency when only relying on bond stress between the transverse prestressed reinforcing steel bar 3 and being connected earlier, and the mode through anchoring, set up prestress system in plate body 1 end; Significantly increase the concrete intensity that is positioned at plate body 1 end, improved the application life of plate body 1.
All the other structures see also embodiment 1.
Embodiment 3
Extremely shown in Figure 5 like Fig. 3; Open longitudinal prestressing reinforcing bar 2 in the present embodiment plate-type ballastless track concrete railway board earlier through anchor plate 4 and plate body 1 anchoring; Anchor plate 4 is cylindrical shape; Along the internal thread hole 4a that being axially arranged with of anchor plate 4 runs through, the end of opening longitudinal prestressing reinforcing bar 2 earlier is provided with external thread section 5, opens longitudinal prestressing reinforcing bar 2 earlier and is threaded with anchor plate 4; And the end face interference of anchor plate 4 and plate body 1, formerly open under the prestressing force screen resilience effect of longitudinal prestressing reinforcing bar 2, anchor plate 4 is connected with the end face cassette of plate body 1.
Need to prove, in all the other embodiments, open earlier modes such as also can adopting pin joint between longitudinal prestressing reinforcing bar 2 and the anchor plate 4 and carry out fasteningly, also can adopt the mode of opening longitudinal prestressing reinforcing bar 2 pier noses earlier, all can play similar effect.
All the other structures see also embodiment 1.
Embodiment 4
Extremely shown in Figure 5 like Fig. 3; Open longitudinal prestressing reinforcing bar 2 in the present embodiment plate-type ballastless track concrete railway board earlier and open transverse prestressed reinforcing steel bar 3 earlier all through anchor plate 4 and plate body 1 anchoring; Anchor plate 4 is cylindrical shape; The internal thread hole 4a that runs through along being axially arranged with of anchor plate 4; Be provided with external thread section 5 on the end of the end of a longitudinal prestressing reinforcing bar 2 and elder generation's transverse prestressed reinforcing steel bar 3 earlier; Open earlier longitudinal prestressing reinforcing bar 2 and open a transverse prestressed reinforcing steel bar 3 earlier and all be threaded with anchor plate 4, and anchor plate 4 is with the end face interference of plate body 1, formerly open under the prestressing force screen resilience effect of longitudinal prestressing reinforcing bar 2 or elder generation's transverse prestressed reinforcing steel bar 3, anchor plate 4 is connected with the end face cassette of plate body 1.
Need to prove, in all the other embodiments, open earlier longitudinal prestressing reinforcing bar 2, open modes such as also can adopting pin joint between transverse prestressed reinforcing steel bar 3 and the anchor plate 4 earlier and carry out fasteningly, all can play similar effect.
For the ease of production, when making; Open the coaxial connecting rod 7 that is fixedly connected with in end of longitudinal prestressing reinforcing bar 2, elder generation's transverse prestressed reinforcing steel bar 3 earlier, the other end of connecting rod 7 is fixedly connected with stretch-draw jack 8b, is connected usefulness as lengthening and with stretch-draw jack 8b; Need not during stretch-draw jack end is inserted in the plate body 1; After connecting through connecting rod 7, the anchor recess hole dimension need not greater than the jack end size, thereby improves the intensity of plate body 1 end.
All the other structures see also embodiment 2.
Embodiment 5
Like Fig. 5, shown in Figure 6, the elder generation in the present embodiment plate-type ballastless track concrete railway board opens longitudinal prestressing reinforcing bar 2 and is packaged in the plate body 1, promptly opens longitudinal prestressing reinforcing bar 2 earlier and is arranged on the inside of plate body 1, and avoid its end directly to be exposed to plate body 1 outside.Here; Usually after manufacturing is accomplished, anchor plate 4 is opened longitudinal prestressing reinforcing bar 2 with elder generation and be coated on realization encapsulation in the plate body 1 with the mode of mud jacking end-blocking; Directly contact thereby having avoided first opens longitudinal prestressing reinforcing bar 2, reach the end of opening transverse prestressed reinforcing steel bar 3 earlier with air; Slowed down the situation of prestressed reinforcement end corrosion, thereby improved the track slab integral life-span.
In all the other embodiments, also can adopt remaining end-blocking mode, closed-end structure will open earlier longitudinal prestressing reinforcing bar 2, and open earlier transverse prestressed reinforcing steel bar 3 isolated each other with atmosphere outside, and realize encapsulation.
All the other structures see also embodiment 3.
Embodiment 6
Like Fig. 5 and shown in Figure 6; Elder generation in the present embodiment plate-type ballastless track concrete railway board opens longitudinal prestressing reinforcing bar 2, and opens earlier a transverse prestressed reinforcing steel bar 3 and all be packaged in the plate body 1; Promptly open earlier longitudinal prestressing reinforcing bar 2, and open a transverse prestressed reinforcing steel bar 3 earlier and be arranged on the inside of plate body 1, thereby avoid its end directly to be exposed to plate body 1 outside.Usually accomplish the back and will open longitudinal prestressing reinforcing bar 2, elder generation's transverse prestressed reinforcing steel bar 3 earlier with the mode of sealing off and covering anchorage mortar mud jacking end-blocking and be coated in the lump in the plate body 1 making together with anchor plate 4; Directly contact thereby having avoided first opens longitudinal prestressing reinforcing bar 2, reach the end of opening transverse prestressed reinforcing steel bar 3 earlier with air; Greatly slowed down the situation of prestressed reinforcement end corrosion, thereby improved the track slab integral life-span.
In all the other embodiments, also can adopt remaining end-blocking mode, closed-end structure will open earlier longitudinal prestressing reinforcing bar 2, and open earlier transverse prestressed reinforcing steel bar 3 isolated each other with atmosphere outside, and realize encapsulation.
All the other structures see also embodiment 4.
Embodiment 7
Extremely shown in Figure 6 like Fig. 1; Be provided with cage of reinforcement in the plate body 1 in the present embodiment plate-type ballastless track concrete railway board; Cage of reinforcement is formed by some nonprestressed reinforcement colligations; Open longitudinal prestressing reinforcing bar 2 earlier and from the hole of cage of reinforcement, pass cage of reinforcement along the vertical of plate body 1, prestressed structure and non-prestressed structure are organically combined, the bulk strength and the shock resistance of track plate are more excellent.
All the other structures see also embodiment 5.
Embodiment 8
Extremely shown in Figure 6 like Fig. 1; Be provided with cage of reinforcement in the plate body 1 in the present embodiment plate-type ballastless track concrete railway board; Cage of reinforcement is formed by some nonprestressed reinforcement colligations; Open earlier longitudinal prestressing reinforcing bar 2 and open transverse prestressed reinforcing steel bar 3 earlier respectively along the vertical and horizontal of plate body 1, from the hole of cage of reinforcement, pass cage of reinforcement, with prestressed structure and the combination of non-prestressed structure, the bulk strength and the shock resistance of track plate are more excellent.
All the other structures see also embodiment 6.
Embodiment 9
Extremely shown in Figure 5 like Fig. 3; In the present embodiment plate-type ballastless track concrete railway board; The two ends of formerly opening longitudinal prestressing reinforcing bar 2 respectively are provided with a cylindrical anchor plate 4, are provided with circular arc chamfering between the outer face of anchor plate 4 and the face of cylinder, and circular arc chamfering is arranged at the adjacent end of two anchor plates 4; Promptly the circular arc chamfering place all is arranged at the end that anchor plate 4 is connected with plate body 1 cassette on elder generation's longitudinal prestressing reinforcing bar 2 two ends anchor plate 4; Plate body 1 cavity shape and anchor plate 4 shapes are suitable, make the anchor plate 4 and the contact surface of the access section of plate body 1 be circular arc, have reduced the situation that stress is concentrated; The diameter of anchor plate 4 is 33mm, and the circular arc chamfering radius is 3mm.
All the other structures see also embodiment 5.
Embodiment 10
Extremely shown in Figure 5 like Fig. 3; In the present embodiment plate-type ballastless track concrete railway board; The two ends of formerly opening longitudinal prestressing reinforcing bar 2 respectively are provided with a cylindrical anchor plate 4, are provided with circular arc chamfering between the outer face of anchor plate 4 and the face of cylinder, and circular arc chamfering is arranged at the adjacent end of two anchor plates 4; Promptly the circular arc chamfering place all is arranged at the end that anchor plate 4 is connected with plate body 1 cassette on elder generation's longitudinal prestressing reinforcing bar 2 two ends anchor plate 4; Plate body 1 cavity shape and anchor plate 4 shapes are suitable, make anchor plate 4 rounded with the contact surface of the access section of plate body 1, have reduced the situation that stress is concentrated; The diameter of anchor plate 4 is 25mm, and the circular arc chamfering radius is 8mm.
All the other structures see also embodiment 5.
Embodiment 11
Extremely shown in Figure 5 like Fig. 3; In the present embodiment plate-type ballastless track concrete railway board; The two ends of formerly opening longitudinal prestressing reinforcing bar 2 respectively are provided with a cylindrical anchor plate 4, are provided with circular arc chamfering between the outer face of anchor plate 4 and the face of cylinder, and circular arc chamfering is arranged at the adjacent end of two anchor plates 4; Promptly the circular arc chamfering place all is arranged at the end that anchor plate 4 is connected with plate body 1 cassette on elder generation's longitudinal prestressing reinforcing bar 2 two ends anchor plate 4; Plate body 1 cavity shape and anchor plate 4 shapes are suitable, make anchor plate 4 rounded with the contact surface of the access section of plate body 1, have reduced the situation that stress is concentrated; The diameter of anchor plate 4 is 33mm, and the circular arc chamfering radius is 7mm.
All the other structures see also embodiment 5.
Embodiment 12
Extremely shown in Figure 5 like Fig. 3; In the present embodiment plate-type ballastless track concrete railway board; The two ends of formerly open longitudinal prestressing reinforcing bar 2, earlier opening transverse prestressed reinforcing steel bar 3 all respectively are provided with a cylindrical anchor plate 4, are provided with circular arc chamfering between the outer face of anchor plate 4 and the face of cylinder, and circular arc chamfering is arranged at the adjacent end of two anchor plates 4; Promptly the circular arc chamfering place all is arranged at the end that anchor plate 4 is connected with plate body 1 cassette on elder generation's longitudinal prestressing reinforcing bar 2, the elder generation's transverse prestressed reinforcing steel bar 3 two ends anchor plate 4; Plate body 1 cavity shape and anchor plate 4 shapes are suitable, make anchor plate 4 rounded with the contact surface of the access section of plate body 1, have reduced the situation that stress is concentrated; The diameter of anchor plate 4 is 29mm, and the circular arc chamfering radius is 8mm.
All the other structures see also embodiment 8.
Embodiment 13
Extremely shown in Figure 5 like Fig. 3; In the present embodiment plate-type ballastless track concrete railway board; The two ends of formerly open longitudinal prestressing reinforcing bar 2, earlier opening transverse prestressed reinforcing steel bar 3 all respectively are provided with a cylindrical anchor plate 4, are provided with circular arc chamfering between the outer face of anchor plate 4 and the face of cylinder, and circular arc chamfering is arranged at the adjacent end of two anchor plates 4; Promptly the circular arc chamfering place all is arranged at the end that anchor plate 4 is connected with plate body 1 cassette on elder generation's longitudinal prestressing reinforcing bar 2, the elder generation's transverse prestressed reinforcing steel bar 3 two ends anchor plate 4; Plate body 1 cavity shape and anchor plate 4 shapes are suitable, make anchor plate 4 rounded with the contact surface of the access section of plate body 1, have reduced the situation that stress is concentrated; The diameter of anchor plate 4 is 30mm, and the circular arc chamfering radius is 5mm.
All the other structures see also embodiment 8.
Embodiment 14
Extremely shown in Figure 5 like Fig. 3; In the present embodiment plate-type ballastless track concrete railway board; The two ends of formerly open longitudinal prestressing reinforcing bar 2, earlier opening transverse prestressed reinforcing steel bar 3 all respectively are provided with a cylindrical anchor plate 4, are provided with circular arc chamfering between the outer face of anchor plate 4 and the face of cylinder, and circular arc chamfering is arranged at the adjacent end of two anchor plates 4; Promptly the circular arc chamfering place all is arranged at the end that anchor plate 4 is connected with plate body 1 cassette on elder generation's longitudinal prestressing reinforcing bar 2, the elder generation's transverse prestressed reinforcing steel bar 3 two ends anchor plate 4; Plate body 1 cavity shape and anchor plate 4 shapes are suitable, make anchor plate 4 rounded with the contact surface of the access section of plate body 1, have reduced the situation that stress is concentrated; The diameter of anchor plate 4 is 30mm, and the circular arc chamfering radius is 6mm.
All the other structures see also embodiment 8.
Embodiment 15
As shown in Figure 2, present embodiment plate-type ballastless track concrete railway board is opened transverse prestressed reinforcing steel bar 3 earlier and in plate body 1, is gone to upper and lower two row's distributions in this embodiment; Open longitudinal prestressing reinforcing bar 2 earlier and in plate body 1, go to upper and lower two row's distributions; And two row's longitudinal prestressing reinforcing bars are arranged at two horizontal rows between prestressed reinforcement; Improve the shock resistance of track plate under the thump condition of bearing the heavy and high frequency capacity of larger axis, and the raising of bulk strength, thereby prolonged the application life of track plate.
All the other structures see also embodiment 2.
Embodiment 16
As shown in Figure 2, present embodiment plate-type ballastless track concrete railway board is opened transverse prestressed reinforcing steel bar 3 earlier and in plate body 1, is gone to upper and lower two row's distributions in this embodiment; Open longitudinal prestressing reinforcing bar 2 earlier and in plate body 1, go to upper and lower two row's distributions; And two row's longitudinal prestressing reinforcing bars are arranged at two horizontal rows between prestressed reinforcement; Significantly improve the shock resistance of track plate under the thump condition of bearing the heavy and high frequency capacity of larger axis, and the raising of bulk strength, thereby prolonged the application life of track plate.
All the other structures see also embodiment 4.
Embodiment 17
As shown in Figure 2, present embodiment plate-type ballastless track concrete railway board is opened transverse prestressed reinforcing steel bar 3 earlier and in plate body 1, is gone to upper and lower two row's distributions in this embodiment; Open longitudinal prestressing reinforcing bar 2 earlier and in plate body 1, go to upper and lower two row's distributions; And two row's longitudinal prestressing reinforcing bars are arranged at two horizontal rows between prestressed reinforcement; Significantly improve the shock resistance of track plate under the thump condition of bearing the heavy and high frequency capacity of larger axis, and the raising of bulk strength, thereby prolonged the application life of track plate.
All the other structures see also embodiment 6.
Embodiment 18
As shown in Figure 2, present embodiment plate-type ballastless track concrete railway board is opened transverse prestressed reinforcing steel bar 3 earlier and in plate body 1, is gone to upper and lower two row's distributions in this embodiment; Open longitudinal prestressing reinforcing bar 2 earlier and in plate body 1, go to upper and lower two row's distributions; And two row's longitudinal prestressing reinforcing bars are arranged at two horizontal rows between prestressed reinforcement; Significantly improve the shock resistance of track plate under the thump condition of bearing the heavy and high frequency capacity of larger axis, and the raising of bulk strength, thereby prolonged the application life of track plate.
All the other structures see also embodiment 8.
 
Embodiment 19
See also Fig. 1 to Fig. 7, a kind of manufacturing approach of plate-type ballastless track concrete railway board may further comprise the steps:
A, the punching block 6 of track plate is in place;
B, work out cage of reinforcement, longitudinal prestressing reinforcing bar and transverse prestressed reinforcing steel bar are penetrated to cage of reinforcement with nonprestressed reinforcement;
C, cage of reinforcement and longitudinal prestressing reinforcing bar and transverse prestressed reinforcing steel bar are hung in the punching block 6 together; And anchor plate 4 is installed on the end of longitudinal prestressing reinforcing bar and transverse prestressed reinforcing steel bar; Anchor plate 4 is provided with internal thread hole 4a; Be equipped with external thread section 5 in the end of longitudinal prestressing reinforcing bar and the end of transverse prestressed reinforcing steel bar, longitudinal prestressing reinforcing bar, transverse prestressed reinforcing steel bar all are threaded with anchor plate 4;
D, be connected in place with tensioning system 8 longitudinal prestressing reinforcing bar, transverse prestressed reinforcing steel bar with connecting rod 7; One end of connecting rod 7 and tensioning system 8 are connected through bolt, and the other end of said connecting rod 7 is threaded with longitudinal prestressing reinforcing bar and/or transverse prestressed reinforcing steel bar.
E carries out single initial tensioning to longitudinal prestressing reinforcing bar, transverse prestressed reinforcing steel bar;
F, respectively transverse prestressed reinforcing steel bar, longitudinal prestressing reinforcing bar are carried out synchronous tension, form and open transverse prestressed reinforcing steel bar 3 earlier and open longitudinal prestressing reinforcing bar 2 earlier;
G, concreting;
H, stream curing;
I, when concrete intensity reach design strength 80% after, put and open;
J, dismounting connecting rod 7;
K, the demoulding;
L, sealing off and covering anchorage.
Because it is similar with the stretching-drawing structure of opening transverse prestressed reinforcing steel bar 3 earlier, therefore not shown to open longitudinal prestressing reinforcing bar 2 among the figure earlier.
Adopt such manufacturing approach, the track plate is not preset the duct of laying of anchor recess and prestressed reinforcement before building completion, and the bond stress between tensioning process advanced person and prestressed reinforcement and the concrete is bigger, and the intensity of track plate is higher; In addition, it is littler to accomplish the anchor recess hole dimension that on the track plate, forms after the stretch-draw, thereby has increased the concrete thickness around the anchor recess, has further improved the intensity of track plate.
Embodiment 20
See also Fig. 7, it is similar with the stretching-drawing structure of opening transverse prestressed reinforcing steel bar 3 earlier, therefore not shown to open longitudinal prestressing reinforcing bar 2 among the figure earlier.
A kind of manufacturing approach like embodiment 16 said plate-type ballastless track concrete railway boards may further comprise the steps:
A, the punching block 6 of track plate is in place;
B, work out cage of reinforcement, longitudinal prestressing reinforcing bar and transverse prestressed reinforcing steel bar are penetrated to cage of reinforcement with nonprestressed reinforcement;
C, cage of reinforcement and longitudinal prestressing reinforcing bar and transverse prestressed reinforcing steel bar are hung in the punching block 6 together; And anchor plate 4 is installed on the end of longitudinal prestressing reinforcing bar and transverse prestressed reinforcing steel bar; Anchor plate 4 is provided with internal thread hole 4a; Be equipped with external thread section 5 in the end of longitudinal prestressing reinforcing bar and the end of transverse prestressed reinforcing steel bar, longitudinal prestressing reinforcing bar, transverse prestressed reinforcing steel bar all are threaded with anchor plate 4;
D, be connected in place with tensioning system 8 longitudinal prestressing reinforcing bar, transverse prestressed reinforcing steel bar with connecting rod 7; One end of connecting rod 7 and tensioning system 8 are connected through bolt, and the other end of said connecting rod 7 is threaded with longitudinal prestressing reinforcing bar and transverse prestressed reinforcing steel bar.
E carries out single initial tensioning to longitudinal prestressing reinforcing bar, transverse prestressed reinforcing steel bar;
F, respectively longitudinal prestressing reinforcing bar, transverse prestressed reinforcing steel bar are carried out synchronous tension, form and open longitudinal prestressing reinforcing bar 2 earlier and open transverse prestressed reinforcing steel bar 3 earlier;
G, concreting;
H, stream curing;
I, when concrete intensity reach design strength 80% after, put and open;
J, dismounting connecting rod 7;
K, the demoulding;
L, sealing off and covering anchorage.
Adopt such manufacturing approach, the track plate before building completion preset anchor recess and prestressed reinforcement lay the duct, the bond stress between tensioning process simple and prestressed reinforcement and the concrete is bigger, the intensity of track plate is higher; In addition, it is littler to accomplish the anchor recess size that on the track plate, forms after the stretch-draw, thereby has increased the concrete thickness around the anchor recess, has further improved the intensity of track plate.
Embodiment 21
See also Fig. 7, it is similar with the stretching-drawing structure of opening transverse prestressed reinforcing steel bar 3 earlier, therefore not shown to open longitudinal prestressing reinforcing bar 2 among the figure earlier.
A kind of manufacturing approach like embodiment 17 said plate-type ballastless track concrete railway boards may further comprise the steps:
A, the punching block 6 of track plate is in place;
B, work out cage of reinforcement, will open longitudinal prestressing reinforcing bar 2 earlier and open a transverse prestressed reinforcing steel bar 3 earlier and penetrate in the cage of reinforcement with nonprestressed reinforcement;
C, with cage of reinforcement and open earlier longitudinal prestressing reinforcing bar 2 and open a transverse prestressed reinforcing steel bar 3 earlier and hang in together in the punching block 6 of track plate, and formerly open the end of longitudinal prestressing reinforcing bar 2 and anchor plate 4 be installed on the transverse prestressed reinforcing steel bar 3 with opening earlier; Anchor plate 4 is provided with internal thread hole 4a, formerly opens the end of longitudinal prestressing reinforcing bar 2 and the end of elder generation's transverse prestressed reinforcing steel bar 3 and is provided with external thread section 5, and a longitudinal prestressing reinforcing bar 2, elder generation's transverse prestressed reinforcing steel bar 3 all are threaded with anchor plate 4 earlier;
D, will open longitudinal prestressing reinforcing bar 2 earlier, open a transverse prestressed reinforcing steel bar 3 earlier and be connected in place with tensioning system 8 with connecting rod 7; One end of connecting rod 7 and tensioning system 8 are fixing, and the other end of connecting rod 7 is with a longitudinal prestressing reinforcing bar 2 or elder generation's transverse prestressed reinforcing steel bar 3 are threaded earlier.
E is to a longitudinal prestressing reinforcing bar 2, elder generation's transverse prestressed reinforcing steel bar 3 carry out single initial tensioning earlier;
F, carry out synchronous tension, carry out synchronous tension opening a transverse prestressed reinforcing steel bar 3 earlier to opening earlier a longitudinal prestressing reinforcing bar 2;
G, concreting;
H, stream curing;
I, when concrete intensity reach design strength 80% after, put and open;
J, the demoulding;
K, dismounting connecting rod 7;
L, sealing off and covering anchorage.
Adopt such manufacturing approach, the track plate before building completion preset anchor recess and prestressed reinforcement lay the duct, the bond stress between tensioning process simple and prestressed reinforcement and the concrete is bigger, the intensity of track plate is higher; In addition, it is littler to accomplish the anchor recess size that on the track plate, forms after the stretch-draw, thereby has increased the concrete thickness around the anchor recess, has further improved the intensity of track plate.
Embodiment 22
See also Fig. 7, it is similar with the stretching-drawing structure of opening transverse prestressed reinforcing steel bar 3 earlier, therefore not shown to open longitudinal prestressing reinforcing bar 2 among the figure earlier.
A kind of manufacturing approach like embodiment 18 said plate-type ballastless track concrete railway boards may further comprise the steps:
A, the punching block 6 of track plate is in place;
A, work out cage of reinforcement, will open longitudinal prestressing reinforcing bar 2 earlier and open a transverse prestressed reinforcing steel bar 3 earlier and penetrate in the cage of reinforcement with nonprestressed reinforcement;
C, with cage of reinforcement and open earlier longitudinal prestressing reinforcing bar 2 and open a transverse prestressed reinforcing steel bar 3 earlier and hang in together in the punching block 6 of track plate, and formerly open the end of longitudinal prestressing reinforcing bar 2 and anchor plate 4 be installed on the transverse prestressed reinforcing steel bar 3 with opening earlier; Anchor plate 4 is provided with internal thread hole 4a, formerly opens the end of longitudinal prestressing reinforcing bar 2 and the end of elder generation's transverse prestressed reinforcing steel bar 3 and is equipped with external thread section 5, and a longitudinal prestressing reinforcing bar 2, elder generation's transverse prestressed reinforcing steel bar 3 all are threaded with anchor plate 4 earlier;
D, will open longitudinal prestressing reinforcing bar 2 earlier, open a transverse prestressed reinforcing steel bar 3 earlier and be connected in place with tensioning system 8 with connecting rod 7; One end of connecting rod 7 and tensioning system 8 are fixing, and the other end of connecting rod 7 is with a longitudinal prestressing reinforcing bar 2 or elder generation's transverse prestressed reinforcing steel bar 3 are threaded earlier.
E is to a longitudinal prestressing reinforcing bar 2, elder generation's transverse prestressed reinforcing steel bar 3 carry out single initial tensioning earlier;
F, carry out synchronous tension, carry out synchronous tension opening a transverse prestressed reinforcing steel bar 3 earlier to opening earlier a longitudinal prestressing reinforcing bar 2;
G, concreting;
H, stream curing;
I, when concrete intensity reach design strength 80% after, put and open;
J, dismounting connecting rod 7;
K, the demoulding;
L, sealing off and covering anchorage.
Adopt such manufacturing approach, the track plate before building completion preset anchor recess and prestressed reinforcement lay the duct, the bond stress between tensioning process simple and prestressed reinforcement and the concrete is bigger, the intensity of track plate is higher; In addition, it is littler to accomplish the anchor recess size that on the track plate, forms after the stretch-draw, thereby has increased the concrete thickness around the anchor recess, has further improved the intensity of track plate.
Embodiment 23
See also Fig. 8 to Figure 13; A kind ofly be used to make tensioning equipment like embodiment 15 said plate-type ballastless track concrete railway boards; Comprise by several and the suitable punching block 6 of plate body 1 shape; The quantity of punching block 6 is provided with as required; A longitudinal prestressing reinforcing bar 2, elder generation's transverse prestressed reinforcing steel bar 3 all are arranged at each punching block 6 inside earlier, and punching block 6 is along laterally, vertically being arranged in punching block 6 matrixes, and each is provided with connecting rod 7 in two ends of a longitudinal prestressing reinforcing bar 2, elder generation's transverse prestressed reinforcing steel bar 3 earlier; Connecting rod 7 is with coaxial connection the between the transverse prestressed reinforcing steel bar 3 opened, the connecting rod 7 coaxial threaded connection in punching block 6 matrixes between adjacent two punching blocks 6 by a longitudinal prestressing reinforcing bar 2, elder generation earlier.The connecting rod 7 that is positioned at the punching block 6 matrixes outside is fixedly connected with tensioning system 8; Can realize that longitudinal prestressing reinforcing bar 2 is opened by many elder generations of synchronous tension or transverse prestressed reinforcing steel bar 3 is opened by elder generation through tensioning system 8 application of forces and under the connection of the connecting rod 7 between each adjacent two punching block 6.
Also be provided with anchor plate 4 at each both ends of opening longitudinal prestressing reinforcing bar 2, elder generation's transverse prestressed reinforcing steel bar 3 earlier; Anchor plate 4 is cylindric; Be provided with internal thread hole 4a along axially running through of anchor plate 4; Opening the preset external thread section 5 in transverse prestressed reinforcing steel bar 3 ends through internal thread hole 4a and elder generation's longitudinal prestressing reinforcing bar 2, elder generation is threaded; Anchor plate 4 radially protrudes to be opened earlier longitudinal prestressing reinforcing bar 2 or opens transverse prestressed reinforcing steel bar 3 earlier, put open after, follow prestressed reinforcement resilience trend and from anchor, fit tightly also with plate body 1 in the punching block 6 that cassette is connected.
Through above-mentioned tensioning equipment the track plate is carried out the stretch-draw manufacturing; Can once carry out integral tension to a plurality of track plates; Improve the production efficiency of tensioning process, simultaneously, through being arranged at anchor plate 4 on the presstressed reinforcing steel, evagination; After prestressed reinforcement of tensioning and concreting; Retraction trend through prestressed reinforcement realizes from anchor, the anchoring of prestressed reinforcement end in the time of the high bond stress that makes that prestressed reinforcement in the track plate of processing has that pre-tensioning system brings, when having post stretching concurrently and making, thus improve the bulk strength of track.
Be provided with crossbeam 8a between connecting rod 7 outside punching block 6 matrixes and the stretch-draw jack 8b; The connecting rod 7 that is positioned at the punching block 6 matrixes outside all is fixedly connected with crossbeam 8a; Stretch-draw jack 8b drives crossbeam 8a along laterally or vertically move; Some elder generations are opened transverse prestressed reinforcing steel bar 3 or open 2 simultaneous tensions of longitudinal prestressing reinforcing bar earlier, and the production efficiency of tensioning process is high.
Tensioning system 8 comprises crossbeam 8a and stretch-draw jack 8b, and the connecting rod 7 that is positioned at the punching block matrix outside all is fixedly connected with crossbeam 8a, and said stretch-draw jack 8b drive crossbeam 8a edge is horizontal or vertically move.
Embodiment 24
See also Fig. 8 to Figure 13; A kind ofly be used to make tensioning equipment like embodiment 16 said plate-type ballastless track concrete railway boards; Comprise by several and the suitable punching block 6 of plate body 1 shape; The quantity of punching block 6 is provided with as required; A longitudinal prestressing reinforcing bar 2, elder generation's transverse prestressed reinforcing steel bar 3 all are arranged at each punching block 6 inside earlier, and punching block 6 is along laterally, vertically being arranged in punching block 6 matrixes, and each is provided with connecting rod 7 in two ends of a longitudinal prestressing reinforcing bar 2, elder generation's transverse prestressed reinforcing steel bar 3 earlier; Connecting rod 7 is with coaxial connection the between the transverse prestressed reinforcing steel bar 3 opened, the connecting rod 7 coaxial threaded connection in punching block 6 matrixes between adjacent two punching blocks 6 by a longitudinal prestressing reinforcing bar 2, elder generation earlier.The connecting rod 7 that is positioned at the punching block 6 matrixes outside is fixedly connected with tensioning system 8; Can realize that longitudinal prestressing reinforcing bar 2 is opened by many elder generations of synchronous tension or transverse prestressed reinforcing steel bar 3 is opened by elder generation through tensioning system 8 application of forces and under the connection of the connecting rod 7 between each adjacent two punching block 6.
Also be provided with anchor plate 4 at each both ends of opening longitudinal prestressing reinforcing bar 2, elder generation's transverse prestressed reinforcing steel bar 3 earlier; Anchor plate 4 is cylindric; Be provided with internal thread hole 4a along axially running through of anchor plate 4; Opening the preset external thread section 5 in transverse prestressed reinforcing steel bar 3 ends through internal thread hole 4a and elder generation's longitudinal prestressing reinforcing bar 2, elder generation is threaded; Anchor plate 4 radially protrudes to be opened earlier longitudinal prestressing reinforcing bar 2 or opens transverse prestressed reinforcing steel bar 3 earlier, put open after, anchor plate 4 follow prestressed reinforcement resilience trend and from anchor, fit tightly also with plate body 1 in the punching block 6 that cassette is connected.
Through above-mentioned tensioning equipment the track plate is carried out the stretch-draw manufacturing; Can once carry out integral tension, improve the production efficiency of tensioning process, simultaneously a plurality of track plates; Through being arranged at anchor plate 4 on the presstressed reinforcing steel, evagination; After prestressed reinforcement of tensioning and concreting, through prestressed reinforcement retraction from anchor, the anchoring of prestressed reinforcement end in the time of the high bond stress that makes that prestressed reinforcement in the track plate of processing has that pre-tensioning system brings, when having post stretching concurrently and making; Thereby improve the bulk strength of track; And because anchor plate 4 sizes are little and need not the pre-buried anchor plate in track plate end, therefore, the weakening degree that 4 pairs of track slab integrals of anchor plate intensity is set is little.
Tensioning system 8 comprises crossbeam 8a and stretch-draw jack 8b, and the connecting rod 7 that is positioned at the punching block matrix outside all is fixedly connected with crossbeam 8a, and said stretch-draw jack 8b drive crossbeam 8a edge is horizontal or vertically move.Sidepiece at punching block 6 matrixes also is set with some pedestals 9; Stretch-draw jack 8b drives crossbeam 8a along laterally or vertically moving with respect to pedestal 9; Some elder generations are opened transverse prestressed reinforcing steel bar 3 or open 2 simultaneous tensions of longitudinal prestressing reinforcing bar earlier, and the production efficiency of tensioning process is high.
Embodiment 25
See also Fig. 8 to Figure 13; A kind ofly be used to make tensioning equipment like embodiment 17 said plate-type ballastless track concrete railway boards; Comprise by several and the suitable punching block 6 of plate body 1 shape; The quantity of punching block 6 is provided with as required; A longitudinal prestressing reinforcing bar 2, elder generation's transverse prestressed reinforcing steel bar 3 all are arranged at each punching block 6 inside earlier, and punching block 6 is along laterally, vertically being arranged in punching block 6 matrixes, and each is provided with connecting rod 7 in two ends of a longitudinal prestressing reinforcing bar 2, elder generation's transverse prestressed reinforcing steel bar 3 earlier; Connecting rod 7 is with coaxial connection the between the transverse prestressed reinforcing steel bar 3 opened, the connecting rod 7 coaxial threaded connection in punching block 6 matrixes between adjacent two punching blocks 6 by a longitudinal prestressing reinforcing bar 2, elder generation earlier.The connecting rod 7 that is positioned at the punching block 6 matrixes outside is fixedly connected with tensioning system 8; Can realize that longitudinal prestressing reinforcing bar 2 is opened by many elder generations of synchronous tension or transverse prestressed reinforcing steel bar 3 is opened by elder generation through tensioning system 8 application of forces and under the connection of the connecting rod 7 between each adjacent two punching block 6.
Also be provided with anchor plate 4 at each both ends of opening longitudinal prestressing reinforcing bar 2, elder generation's transverse prestressed reinforcing steel bar 3 earlier; Anchor plate 4 is cylindric; Be provided with internal thread hole 4a along axially running through of anchor plate 4; Opening the preset external thread section 5 in transverse prestressed reinforcing steel bar 3 ends through internal thread hole 4a and elder generation's longitudinal prestressing reinforcing bar 2, elder generation is threaded; Anchor plate 4 radially protrudes to be opened earlier longitudinal prestressing reinforcing bar 2 or opens transverse prestressed reinforcing steel bar 3 earlier, put open after, anchor plate 4 follow prestressed reinforcement resilience trend and from anchor, fit tightly also with plate body 1 in the punching block 6 that cassette is connected.
Through above-mentioned tensioning equipment the track plate is carried out the stretch-draw manufacturing; Can once carry out integral tension to a plurality of track plates; Improved the production efficiency of tensioning process, simultaneously, through being arranged at anchor plate 4 on the presstressed reinforcing steel, evagination; After prestressed reinforcement of tensioning and concreting; Through prestressed reinforcement retraction from anchor, the anchoring of prestressed reinforcement end in the time of the high bond stress that makes that prestressed reinforcement in the track plate of processing has that pre-tensioning system brings, when having post stretching concurrently and making, thus improve the bulk strength of track.
Tensioning system 8 comprises crossbeam 8a and stretch-draw jack 8b, and the connecting rod 7 that is positioned at the punching block matrix outside all is fixedly connected with crossbeam 8a, and said stretch-draw jack 8b drive crossbeam 8a edge is horizontal or vertically move.Some elder generations are opened transverse prestressed reinforcing steel bar 3 or open 2 simultaneous tensions of longitudinal prestressing reinforcing bar earlier, and the production efficiency of tensioning process is high.
Embodiment 26
See also Fig. 8 to Figure 13; A kind ofly be used to make tensioning equipment like embodiment 18 said plate-type ballastless track concrete railway boards; Comprise by several and the suitable punching block 6 of plate body 1 shape; The quantity of punching block 6 is provided with as required; A longitudinal prestressing reinforcing bar 2, elder generation's transverse prestressed reinforcing steel bar 3 all are arranged at each punching block 6 inside earlier, and punching block 6 is along laterally, vertically being arranged in punching block 6 matrixes, and each is provided with connecting rod 7 in two ends of a longitudinal prestressing reinforcing bar 2, elder generation's transverse prestressed reinforcing steel bar 3 earlier; Connecting rod 7 is with coaxial connection the between the transverse prestressed reinforcing steel bar 3 opened, the connecting rod 7 coaxial threaded connection in punching block 6 matrixes between adjacent two punching blocks 6 by a longitudinal prestressing reinforcing bar 2, elder generation earlier.The connecting rod 7 that is positioned at the punching block 6 matrixes outside is fixedly connected with tensioning system 8; Can lead to tensioning system 8 application of forces and under the connection of the connecting rod 7 between each adjacent two punching block 6, realize that longitudinal prestressing reinforcing bar 2 is opened by many elder generations of synchronous tension or transverse prestressed reinforcing steel bar 3 is opened by elder generation.
Also be provided with anchor plate 4 at each both ends of opening longitudinal prestressing reinforcing bar 2, elder generation's transverse prestressed reinforcing steel bar 3 earlier; Anchor plate 4 is cylindric; Be provided with internal thread hole 4a along axially running through of anchor plate 4; Opening the preset external thread section 5 in transverse prestressed reinforcing steel bar 3 ends through internal thread hole 4a and elder generation's longitudinal prestressing reinforcing bar 2, elder generation is threaded; Anchor plate 4 radially protrudes to be opened earlier longitudinal prestressing reinforcing bar 2 or opens transverse prestressed reinforcing steel bar 3 earlier, put open after, anchor plate 4 follow prestressed reinforcement resilience trend and from anchor, fit tightly also with plate body 1 in the punching block 6 that cassette is connected.
Through above-mentioned tensioning equipment the track plate is carried out the stretch-draw manufacturing; Can once carry out integral tension to a plurality of track plates; Improved the production efficiency of tensioning process, simultaneously, through being arranged at anchor plate 4 on the presstressed reinforcing steel, evagination; After prestressed reinforcement of tensioning and concreting; Through prestressed reinforcement retraction from anchor, the anchoring of prestressed reinforcement end in the time of the high bond stress that makes that prestressed reinforcement in the track plate of processing has that pre-tensioning system brings, when having post stretching concurrently and making, thus improve the bulk strength of track.
Tensioning system 8 comprises crossbeam 8a and stretch-draw jack 8b, and the connecting rod 7 that is positioned at the punching block matrix outside all is fixedly connected with crossbeam 8a, and said stretch-draw jack 8b drive crossbeam 8a edge is horizontal or vertically move.
Sidepiece at punching block 6 matrixes also is set with some pedestals 9; Stretch-draw jack 8b drives crossbeam 8a along laterally or vertically moving with respect to pedestal 9; Some elder generations are opened transverse prestressed reinforcing steel bar 3 or open 2 simultaneous tensions of longitudinal prestressing reinforcing bar earlier, and the production efficiency of tensioning process is high.
Combine accompanying drawing that embodiments of the invention are described in detail above; But the present invention is not limited to the foregoing description; In the ken that those of ordinary skills possessed, can also make various variations, these variations all belong within protection scope of the present invention.

Claims (14)

1. plate-type ballastless track concrete railway board; Comprise plate body (1); Be provided with some elder generations in the said plate body (1) and open longitudinal prestressing reinforcing bar (2); The length direction extension of longitudinal prestressing reinforcing bar (2) along plate body (1) opened by said elder generation, and said elder generation opens longitudinal prestressing reinforcing bar (2) and combines closely with the concrete in the plate body (1), and it is characterized in that: longitudinal prestressing reinforcing bar (2) and plate body (1) anchoring are opened by said elder generation.
2. plate-type ballastless track concrete railway board according to claim 1; It is characterized in that: also be provided with some elder generations in the said plate body (1) and open transverse prestressed reinforcing steel bar (3); The width extension of transverse prestressed reinforcing steel bar (3) along plate body (1) opened by said elder generation; Said elder generation opens transverse prestressed reinforcing steel bar (3) and combines closely with the concrete in the plate body (1), and transverse prestressed reinforcing steel bar (3) and plate body (1) anchoring are opened by said elder generation.
3. plate-type ballastless track concrete railway board according to claim 2; It is characterized in that: said elder generation opens longitudinal prestressing reinforcing bar (2) and opens transverse prestressed reinforcing steel bar (3) earlier all through anchor plate (4) and plate body (1) anchoring; Said anchor plate (4) is provided with internal thread hole (4a); Said elder generation opens the end of longitudinal prestressing reinforcing bar (2) and is provided with external thread section (5) with the end of opening transverse prestressed reinforcing steel bar (3) earlier; Said elder generation opens longitudinal prestressing reinforcing bar (2) and opens transverse prestressed reinforcing steel bar (3) earlier and all is threaded with anchor plate (4), and said anchor plate (4) is connected with plate body (1) cassette.
4. plate-type ballastless track concrete railway board according to claim 3 is characterized in that: said elder generation opens longitudinal prestressing reinforcing bar (2), and opens earlier a transverse prestressed reinforcing steel bar (3) and all be packaged in the plate body (1).
5. plate-type ballastless track concrete railway board according to claim 4 is characterized in that: said plate body also is provided with cage of reinforcement in (1), and said cage of reinforcement is formed by some nonprestressed reinforcement colligations.
6. plate-type ballastless track concrete railway board according to claim 5 is characterized in that: said elder generation opens longitudinal prestressing reinforcing bar (2) and opens transverse prestressed reinforcing steel bar (3) earlier and pass cage of reinforcement along the vertical and horizontal of plate body (1) respectively.
7. plate-type ballastless track concrete railway board according to claim 6; It is characterized in that: said anchor plate (4) is cylindric; Be provided with circular arc chamfering between the outer face of said anchor plate (4) and the face of cylinder; The diameter of said anchor plate (4) is 25mm～33mm, and said circular arc chamfering radius is 3mm～8mm.
8. according to the described plate-type ballastless track concrete railway board of arbitrary claim in the claim 2 to 7, it is characterized in that: said elder generation opens transverse prestressed reinforcing steel bar (3) and in plate body (1), goes to upper and lower two row's distributions; Said elder generation opens longitudinal prestressing reinforcing bar (2) and in plate body (1), goes to upper and lower two row's distributions.
9. plate-type ballastless track concrete railway board according to claim 8 is characterized in that: said two a row elder generation longitudinal prestressing reinforcing bar (2) are arranged at said two rows and open between the transverse prestressed reinforcing steel bar (3) earlier.
10. the manufacturing approach of a plate-type ballastless track concrete railway board is characterized in that, may further comprise the steps:
The punching block of track plate is in place;
Work out cage of reinforcement with nonprestressed reinforcement, longitudinal prestressing reinforcing bar and transverse prestressed reinforcing steel bar are penetrated to cage of reinforcement;
Hang in cage of reinforcement, longitudinal prestressing reinforcing bar and transverse prestressed reinforcing steel bar in the punching block together; And on the end of longitudinal prestressing reinforcing bar and transverse prestressed reinforcing steel bar, anchor plate is installed; Anchor plate is provided with internal thread hole; On longitudinal prestressing reinforcing bar and transverse prestressed reinforcing steel bar, be equipped with external thread section, longitudinal prestressing reinforcing bar, transverse prestressed reinforcing steel bar all are threaded with anchor plate;
Be connected longitudinal prestressing reinforcing bar, transverse prestressed reinforcing steel bar in place with tensioning system with connecting rod;
E carries out single initial tensioning to longitudinal prestressing reinforcing bar, transverse prestressed reinforcing steel bar;
Respectively transverse prestressed reinforcing steel bar, longitudinal prestressing reinforcing bar are carried out synchronous tension, form and open transverse prestressed reinforcing steel bar earlier and open the longitudinal prestressing reinforcing bar earlier;
Concreting;
Stream curing;
When concrete intensity reach design strength 80% after, put and open;
Remove connecting rod;
The demoulding;
Sealing off and covering anchorage.
11. the manufacturing approach of plate-type ballastless track concrete railway board according to claim 10; It is characterized in that: in the steps d; One end of said connecting rod (7) and tensioning system (8) are fixing, and the other end of said connecting rod (7) is threaded with longitudinal prestressing reinforcing bar or transverse prestressed reinforcing steel bar.
12. one kind is used to make the tensioning equipment like the said plate-type ballastless track concrete railway board of claim 9; It is characterized in that: comprise by several and the suitable punching block (6) of plate body (1) shape; Longitudinal prestressing reinforcing bar (2) is opened by said elder generation, a transverse prestressed reinforcing steel bar (3) all is arranged at each punching block (6) inside earlier, and said punching block (6) is along laterally, vertically being arranged in the punching block matrix;
Longitudinal prestressing reinforcing bar (2) is opened by said each elder generation, the two ends of a transverse prestressed reinforcing steel bar (3) are provided with connecting rod (7) earlier, are arranged in the coaxial fixed connection of connecting rod (7) between adjacent two punching blocks of said punching block matrix (6); The connecting rod (7) that is positioned at the said punching block matrix outside is fixedly connected with tensioning system (8);
Longitudinal prestressing reinforcing bar (2) is opened by said each elder generation, the both ends of a transverse prestressed reinforcing steel bar (3) also are provided with anchor plate (4) earlier, and said anchor plate (4) radially protrudes from elder generation's longitudinal prestressing reinforcing bar (2) or opens transverse prestressed reinforcing steel bar (3) earlier.
13. the tensioning equipment of plate-type ballastless track concrete railway board according to claim 12 is characterized in that: said anchor plate (4) is with a longitudinal prestressing reinforcing bar (2) or elder generation's transverse prestressed reinforcing steel bar (3) are threaded earlier.
14. the tensioning equipment of plate-type ballastless track concrete railway board according to claim 13; It is characterized in that: said tensioning system (8) comprises crossbeam (8a) and stretch-draw jack (8b); The connecting rod (7) that is positioned at the punching block matrix outside all is fixedly connected with crossbeam (8a), and said stretch-draw jack (8b) drive crossbeam (8a) edge is horizontal or vertically move.
CN201210131219.6A 2012-04-28 2012-04-28 Plate-type ballastless track concrete track plate, manufacturing method thereof, and stretching device thereof Active CN102628242B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102995503A (en) * 2012-12-12 2013-03-27 中铁二十三局集团有限公司 Pre-tensioning prestressed structure turnout slab for ballastless track
CN104264533A (en) * 2014-08-07 2015-01-07 中铁二十三局集团轨道交通工程有限公司 Two-way pre-tensioned prestressed concrete track plate and production method thereof
CN104942989A (en) * 2015-07-03 2015-09-30 四川睿铁科技有限责任公司 Manufacturing process suitable for alpine region high-speed railway large-gauge track board
CN110485215A (en) * 2019-09-11 2019-11-22 扬州大学 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
CN107144468B (en) * 2017-06-19 2023-05-23 中铁六局集团有限公司 Ballastless track horizontal pulling and pressing loading system and loading method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
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CN105780611B (en) * 2016-01-08 2018-05-18 中铁二十二局集团第一工程有限公司 A kind of track plates
CN105643792B (en) * 2016-02-04 2017-12-05 秦皇岛老虎重工有限公司 Bidirectional pre-tensioned prestressing force fragment-free track slab movable type tensioning equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1864966A (en) * 2006-05-05 2006-11-22 欧阳炎 Advanced tension method bi-directional prestress concrete track board steel model
JP4674298B2 (en) * 2001-04-27 2011-04-20 独立行政法人鉄道建設・運輸施設整備支援機構 Slab mat
CN201883346U (en) * 2010-12-17 2011-06-29 中国铁道科学研究院铁道建筑研究所 Prestressed concrete track slab of slab-type ballastless track
CN202090243U (en) * 2011-06-02 2011-12-28 中铁二十三局集团有限公司 Pretensioned track board
CN202530341U (en) * 2012-04-28 2012-11-14 中铁二十三局集团有限公司 Concrete track plate of plate type ballastless track

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2126862Y (en) * 1992-06-02 1993-02-10 任华国 Flush bonding prestressed concrete steel wire bundle anchor
CN2367692Y (en) * 1999-01-08 2000-03-08 柳州欧维姆建筑机械有限公司 First-open type connector
CN100396868C (en) * 2004-05-19 2008-06-25 柳州欧维姆机械股份有限公司 Prestressed anchoring system by high tensile steel wire pretension and construction method thereof
CN101279483A (en) * 2008-05-29 2008-10-08 山东省公路建设（集团）有限公司 Integral tension, relaxation system and technique for pre-tensioned prestressing tension technique
CN201279834Y (en) * 2008-08-08 2009-07-29 欧阳炎 Bidirectional pre-tensioning rail panel long face cabinet leg product line
KR101131951B1 (en) * 2010-02-26 2012-04-02 주식회사 송원하이텍 Synthetic pile manufacture and construction method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4674298B2 (en) * 2001-04-27 2011-04-20 独立行政法人鉄道建設・運輸施設整備支援機構 Slab mat
CN1864966A (en) * 2006-05-05 2006-11-22 欧阳炎 Advanced tension method bi-directional prestress concrete track board steel model
CN201883346U (en) * 2010-12-17 2011-06-29 中国铁道科学研究院铁道建筑研究所 Prestressed concrete track slab of slab-type ballastless track
CN202090243U (en) * 2011-06-02 2011-12-28 中铁二十三局集团有限公司 Pretensioned track board
CN202530341U (en) * 2012-04-28 2012-11-14 中铁二十三局集团有限公司 Concrete track plate of plate type ballastless track

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102995503A (en) * 2012-12-12 2013-03-27 中铁二十三局集团有限公司 Pre-tensioning prestressed structure turnout slab for ballastless track
CN102995503B (en) * 2012-12-12 2016-01-20 中铁二十三局集团有限公司 A kind of non-fragment orbit pre-tensioned prestressing structure switching turnout plate
CN104264533A (en) * 2014-08-07 2015-01-07 中铁二十三局集团轨道交通工程有限公司 Two-way pre-tensioned prestressed concrete track plate and production method thereof
CN104264533B (en) * 2014-08-07 2016-02-24 中铁二十三局集团轨道交通工程有限公司 A kind of bidirectional pre-tensioned prestressed concrete railway board and production method thereof
CN104942989A (en) * 2015-07-03 2015-09-30 四川睿铁科技有限责任公司 Manufacturing process suitable for alpine region high-speed railway large-gauge track board
CN107144468B (en) * 2017-06-19 2023-05-23 中铁六局集团有限公司 Ballastless track horizontal pulling and pressing loading system and loading method
CN110485215A (en) * 2019-09-11 2019-11-22 扬州大学 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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