CN106217639B - Ladder-type sleepers prefabricated construction device and method - Google Patents
Ladder-type sleepers prefabricated construction device and method Download PDFInfo
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- CN106217639B CN106217639B CN201610609302.8A CN201610609302A CN106217639B CN 106217639 B CN106217639 B CN 106217639B CN 201610609302 A CN201610609302 A CN 201610609302A CN 106217639 B CN106217639 B CN 106217639B
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- type sleepers
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- side form
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Classifications
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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
- B28B23/12—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 to form prestressed circumferential reinforcements
- B28B23/16—Prestressed reinforcing nets
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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
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
- B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
-
- 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
-
- 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
-
- 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/24—Unitary mould structures with a plurality of moulding spaces, e.g. moulds divided into multiple moulding spaces by integratable partitions, mould part structures providing a number of moulding spaces in mutual co-operation
- B28B7/241—Detachable assemblies of mould parts providing only in mutual co-operation a number of complete moulding spaces
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
A kind of ladder-type sleepers prefabricated construction device and method.Device includes foundation ditch type production pedestal, mold, more dither motors；It includes two big stretch-drawing beam, four jack, twice load wall, small stretch-drawing beam, more finish rolling deformed bars that foundation ditch type, which produces pedestal,；Bottom plate and polylith elastomer block is turned up including side form, four pieces of end moulds, four side form closing devices, more foundation mould supporting legs, more foundation mould connecting cross beams, polyliths in two pieces of bed dies, four pieces of outer side molds, four pieces in mold；Dither motor is arranged at intervals on different bed die connecting cross beams.Existing foundation ditch type can be produced the capital equipment that pedestal repacks ladder-type sleepers production line by the ladder-type sleepers prefabricated construction device and method of the present invention, and it can rationally increase the quantity of production pedestal according to production task and duration, solve the problems, such as that other domestic producers carry out the inefficiency of fixation and the dismounting of bed die and side form using bolt, pre-stress construction synchronous control is realized, the working efficiency of filling concrete process is improved.
Description
Technical field
The invention belongs to the prefabricating technique fields of city track traffic engineering ladder-type sleepers, are specifically related to a kind of trapezoidal
Sleeper fabricated device and construction method.
Background technology
In recent years, with the fast development of domestic city urban rail transit construction, to the high reliability of track structure, it is low at
Originally, few repair, low vibration, low noise, high shock resistance etc. have requirements at the higher level.Ladder-type sleepers are anti-using at certain intervals
The material that shakes is support, realizes the low vibration of city rail, low noise is widely used to Beijing, Shanghai, Ningbo, depth at present
In the Rail Transit System in multiple cities such as ditch between fields.But the construction method of domestic existing production ladder-type sleepers there are it is following not
Foot：
1, ladder-type sleepers mold be using bolt carry out bed die and side form fixation and dismounting, therefore dismantle the efficiency of loading and unloading compared with
It is low；
2, the pre-stress construction of ladder-type sleepers is carried out by the way of manual operation jack, therefore the synchronization of work progress
Property is affected by human factor；
3, concrete process carries out cloth, the mode that dynamic stick vibrates using hopper, therefore working efficiency is relatively low.
Invention content
To solve the above-mentioned problems, the purpose of the present invention is to provide a kind of ladder-type sleepers prefabricated construction device and methods.
In order to achieve the above object, ladder-type sleepers prefabricated construction device provided by the invention include foundation ditch type production pedestal,
Mold, more dither motors；The foundation ditch type production pedestal includes two big stretch-drawing beam, four jack, twice
Load wall, small stretch-drawing beam, more finish rolling deformed bars；The big stretch-drawing beam of two of which along foundation pit length direction can move
Mode is arranged in parallel in the both ends of foundation pit；Twice load wall is arranged in parallel in the both sides of foundation pit, per pass along the length direction of foundation pit
The both ends of load wall are connected with one end of a jack respectively, and the other end of every jack is connected to is located at the same side with it
One big stretch-drawing beam one end；Small stretch-drawing beam is arranged in a manner of parallel with big stretch-drawing beam in the inside of foundation pit, and
And it is connected with one big stretch-drawing beam by more finish rolling deformed bars disposed in parallel；The mold includes two pieces of bottoms
Mould, four pieces of outer side molds, side form, four pieces of end moulds, four side form closing devices, more foundation mould supporting legs, the connection of more foundation moulds in four pieces
Bottom plate and polylith elastomer block is turned up in crossbeam, polylith；Wherein be turned up bottom plate using bolt along foundation pit length direction in the middle part of foundation pit
Two row are arranged side by side on bottom surface；One piece of elastomer block is installed in lower end per foundation mould supporting leg, and every piece of elastomer block is placed on one piece of height-regulating
The surface of bottom plate, the vibration for reducing dither motor；One piece of bed die is fixed in the upper end of each column bed die supporting leg simultaneously；Every piece
The interior outer ledge of bed die is respectively equipped with the interior side form and outer side mold that one piece can be opened and closed using side form closing device, front and back
End is respectively equipped with a reassembling type end mould；More foundation mould connecting cross beam intervals are connected between two pieces of bed dies；More high-frequency vibrations
Motor is arranged at intervals on different bed die connecting cross beams.
The end mould is made of the bottom plate, intermediate end plate and upper head plate set gradually from bottom to up, wherein bottom plate
Upper end-face edge and the lower edge of upper head plate be respectively formed multiple U-shaped prestress wire impenetrating mouths for being separated by setting, and
And positioning pin is added on bottom plate, corner when form removal can be avoided to knock damage under the premise of ensuring registration in this way.
The interior side form is at fastener for connection and outer side mold is detachable structure at boss, thus can be by inside
Mould and outer side mold split into multistage, are beneficial for disassembly and assembly in this way and reinforcing bar enters mould conveniently, and can avoid knocking caused by form removal at boss
Damage.
When producing the ladder-type sleepers with track form, sliding rail is additionally provided between each column elastomer block and height-regulating bottom plate
Slot, when prestressing force being made to put, a mold energy whole slide, and the reset after a sliding is put convenient for mold, when ladder-type sleepers being made to put
Stress can transmit naturally without damaging track position thereon or mold.
The jack uses the jack of 3000KN.
The construction method of the prefabricated ladder-type sleepers of ladder-type sleepers prefabricated construction device provided by the invention includes carrying out in order
The following steps：
1) tie up ladder-type sleepers steel reinforcement cage on the ground first, steel reinforcement cage by more prestress wires, polylith sub-wire every
Plate and multi-turn stirrup are constituted, wherein more prestress wires are arranged in parallel, and cross section is rectangular；It is formed on sub-wire partition board
There are multiple circular holes for through prestress wire, polylith sub-wire partition board interval in a manner of vertical with prestress wire is set
It sets in the middle part of prestress wire；Stirrup is looped around the both sides position of more prestress wires；
2) each steel reinforcement cage is placed on to the surface of one piece of bed die, is then anchored at the both ends of prestress wire respectively small
On stretch-drawing beam and another the big stretch-drawing beam not being connected with small stretch-drawing beam；
3) lateral connection steel pipe between two steel reinforcement cages, reinforcing bar at boss, the accessory at suspension-center pre-embedded including bolt are installed；
4) it is synchronized using four jack and ejects two big stretch-drawing beam outward to carry out the two-way whole of prestress wire
Body initial tensioning, then on small stretch-drawing beam using centre-hole jack by root carry out prestress wire it is single look for it is even, then
It is synchronized using four jack and ejects two big stretch-drawing beam outward to carry out two-way whole whole tensioning, until reaching required
Clamp force；
5) side form closing device is utilized to mold interior side form and outer side mold, end mould installs bottom plate first when installing, under making
Every prestress wire on layer prestress wire is located at each U-shaped prestress steel of bottom plate upper end-face edge
In twisted wire impenetrating mouth, then intermediate end plate is installed, upper head plate is installed again later, makes every on the prestress wire of upper layer to answer in advance
Power steel strand wires are located in each U-shaped prestress wire impenetrating mouth of upper head plate lower edge；
6) concrete is gradually poured in from one end of foundation pit to the other end by bed die, outer side mold, inside using material distributing machine
In the space that mould and end mould are constituted, starts dither motor during perfusion and vibrated, so that concrete compaction is molded, later
Top surface is caught up with to pressure in time, is smoothed out；And the pre-buried temperature sensor when last block ladder-type sleepers is perfused, so that real-time tracking detects
Temperature variations inside ladder-type sleepers；
7) ladder-type sleepers are conserved using steam, until the intensity of ladder-type sleepers reaches 48Mpa；
8) it utilizes side form closing device to mold interior side form and outer side mold, while end mould and above-mentioned accessory being dismantled；
9) it synchronizes retraction using four jack and makes two big stretch-drawing beam inward against movement, to carry out prestress steel
Putting for twisted wire is opened；
10) ladder-type sleepers that the polylith on every piece of bed die links together are demoulded using lifting appliance, it is thus complete
At entire work progress.
Existing foundation ditch type can be produced pedestal and repacked by ladder-type sleepers prefabricated construction device and method provided by the invention
The capital equipment of ladder-type sleepers production line, and can rationally increase the quantity of production pedestal according to production task and duration, it solves
Other domestic producers carry out the inefficiency problem of fixation and the dismounting of bed die and side form using bolt, realize pre-stress construction
Synchronous control improves the working efficiency of filling concrete process.
Description of the drawings
Fig. 1 is that foundation ditch type produces pedestal part-structure vertical view in ladder-type sleepers prefabricated construction device provided by the invention.
Fig. 2 is that foundation ditch type produces pedestal structure vertical view in ladder-type sleepers prefabricated construction device provided by the invention.
Fig. 3 is ladder-type sleepers mould structure vertical view in ladder-type sleepers prefabricated construction device provided by the invention.
Fig. 4 is ladder-type sleepers prefabricated construction apparatus structure side view provided by the invention.
Fig. 5 is sub-wire diaphragm structure schematic diagram employed in ladder-type sleepers precast construction method provided by the invention.
Fig. 6 is reinforcement cage structure vertical view employed in ladder-type sleepers precast construction method provided by the invention.
Fig. 7 be in Fig. 6 A-A to sectional view.
Fig. 8 is vertical view when being constructed using ladder-type sleepers prefabricated construction device provided by the invention.
Specific implementation mode
Ladder-type sleepers prefabricated construction device and method provided by the invention is carried out in the following with reference to the drawings and specific embodiments
It is described in detail.
As Figure 1-Figure 8, ladder-type sleepers prefabricated construction device provided by the invention includes foundation ditch type production pedestal, mould
Tool, more dither motors 4；The foundation ditch type production pedestal includes two big stretch-drawing beam 1, four jack 2, twice
Load wall 3, small stretch-drawing beam 5, more finish rolling deformed bars 6；The big stretch-drawing beam of two of which 1 along foundation pit length direction can move
Dynamic mode is arranged in parallel in the both ends of foundation pit；Twice load wall 3 is arranged in parallel in the both sides of foundation pit along the length direction of foundation pit,
The both ends of per pass load wall 3 are connected with one end of a jack 2 respectively, and the other end of every jack 2 is connected to and its position
In one end of the one big stretch-drawing beam 1 of the same side；Small stretch-drawing beam 5 is arranged in a manner of parallel with big stretch-drawing beam 1 in base
The inside in hole, and be connected with one big stretch-drawing beam 1 by more finish rolling deformed bars 6 disposed in parallel；The mould
Tool includes 9, four pieces of ends mould 10, four side form closing devices 11, more foundation of side form in two pieces of 7, four pieces of bed die, 8, four pieces of outer side molds
Bottom plate 14 and polylith elastomer block 15 is turned up in mould supporting leg 12, more foundation mould connecting cross beams 13, polylith；Bottom plate 14 is wherein turned up and utilizes spiral shell
Two row are arranged side by side in the middle part of the foundation pit along the length direction of foundation pit for bolt on bottom surface；Lower end per foundation mould supporting leg 12 is installed by one piece of bullet
Property block 15, every piece of elastomer block 15 be placed on one piece height-regulating bottom plate 14 surface, the vibration for reducing dither motor 4；Often
One piece of bed die 7 is fixed in the upper end of row bed die supporting leg 12 simultaneously；The interior outer ledge of every piece of bed die 7 is respectively equipped with one piece and can utilize
The interior side form 9 and outer side mold 8 that side form closing device 11 is opened and closed, front and back end are respectively equipped with a reassembling type end mould 10；More
The interval of bed die connecting cross beam 13 is connected between two pieces of bed dies 7；More dither motors 4 are arranged at intervals on different bed die connections
On crossbeam 13.
The end mould 10 is made of the bottom plate 25, intermediate end plate 16 and upper head plate 17 set gradually from bottom to up,
The upper end-face edge of middle bottom plate 25 and the lower edge of upper head plate 17 are respectively formed multiple U-shaped prestress steel twists for being separated by setting
Line impenetrating mouth, and positioning pin is added on bottom plate 25, when can avoid form removal under the premise of ensuring registration in this way
Knock damage in corner.
The interior side form 9 at fastener for connection 23 and outer side mold 8 24 be detachable structure at boss, thus may be used
Interior side form 9 and outer side mold 8 are split into multistage, is beneficial for disassembly and assembly in this way and reinforcing bar enters mould conveniently, and can avoid form removal at boss
It is caused to knock damage.
When producing the ladder-type sleepers with track form, sliding is additionally provided between each column elastomer block 15 and height-regulating bottom plate 14
Track slot 18, when prestressing force being made to put, mold energy whole slide, and the reset after a sliding is put convenient for mold, so that ladder-type sleepers is put
Stress when opening can be transmitted naturally without damaging track position or mold thereon.
The jack 2 uses the jack of 3000KN.
Construction method using the prefabricated ladder-type sleepers of ladder-type sleepers prefabricated construction device provided by the invention includes in order
The following steps of progress：
1) ladder-type sleepers steel reinforcement cage is tied up on the ground first, steel reinforcement cage is by more prestress wires 19, polylith sub-wire
Partition board 20 and multi-turn stirrup 21 are constituted, wherein more prestress wires 19 are arranged in parallel, and cross section is rectangular；Sub-wire every
Be formed on plate 20 it is multiple for through prestress wire 19 circular holes 22, polylith sub-wire partition board 20 with prestress wire
19 vertical modes are arranged at intervals on the middle part of prestress wire 19, for levels prestress wire 19 to be separated and
It determines the length of ladder-type sleepers, occurs to intersect torsion after capable of effectively avoiding prestress wire 19 from entering mould in this way；21 ring of stirrup
It is wound on the both sides position of more prestress wires 19；
2) each steel reinforcement cage is placed on to the surface of one piece of bed die 7, then anchors at the both ends of prestress wire 19 respectively
On another the big stretch-drawing beam 1 not being connected in small stretch-drawing beam 5 and with small stretch-drawing beam 5；
3) lateral connection steel pipe between two steel reinforcement cages, reinforcing bar at boss, the accessory at suspension-center pre-embedded including bolt are installed；
4) it is synchronized using four jack 2 and ejects two big stretch-drawing beam 1 outward to carry out the double of prestress wire 19
To whole initial tensioning, then the single of prestress wire 19 is carried out by root on small stretch-drawing beam 5 using centre-hole jack
Look for even, recycling four jack 2 to synchronize outward, the two big stretch-drawing beam of ejection 1 is to carry out two-way whole whole tensioning, up to reaching
To required tensile force；
5) interior side form 9 and outer side mold 8 are molded using side form closing device 11, end mould 10 installs bottom plate first when installing
25, make the every prestress wire 19 on lower layer's prestress wire 19 be located at 25 upper end-face edge of bottom plate each
In U-shaped prestress wire impenetrating mouth, then intermediate end plate 16 is installed, upper head plate 17 is installed again later, makes upper layer prestressing force
Every prestress wire 19 on steel strand wires 19 is located at each U-shaped prestress steel twist of 17 lower edge of upper head plate
In line impenetrating mouth；
6) concrete is gradually poured in from one end of foundation pit to the other end using material distributing machine by bed die 7, outer side mold 8, interior
Side form 9 and end mould 10 constitute space in, during perfusion start dither motor 4 vibrated so that concrete compaction at
Pressure is caught up in top surface by type in time later, smoothes out, to ensure the thickness of ladder-type sleepers and the flatness of bottom surface；And last is being perfused
Pre-buried temperature sensor when block ladder-type sleepers, so as to the temperature variations inside real-time tracking detection ladder-type sleepers；
7) ladder-type sleepers are conserved using steam, until the intensity of ladder-type sleepers reaches 48Mpa；
8) interior side form 9 and outer side mold 8 are molded using side form closing device 11, while end mould 10 and above-mentioned accessory is torn open
It opens；
9) it synchronizes retraction using four jack 2 and makes two big stretch-drawing beam 1 inward against movement, to carry out prestressing force
Putting for steel strand wires 19 is opened；
10) ladder-type sleepers that the polylith on every piece of bed die 7 links together are demoulded using lifting appliance, it is thus complete
At entire work progress.
Claims (6)
1. a kind of ladder-type sleepers prefabricated construction device, it is characterised in that：The ladder-type sleepers prefabricated construction device includes foundation pit
Formula produces pedestal, mold, more dither motors (4)；The foundation ditch type production pedestal includes two big stretch-drawing beams
(1), four jack (2), twice load wall (3), small stretch-drawing beam (5), more finish rolling deformed bars (6)；Two of which is big
Stretch-drawing beam (1) is arranged in parallel in the both ends of foundation pit in a manner of it can be moved along foundation pit length direction；Twice load wall (3) is along base
The length direction in hole is arranged in parallel in the both sides of foundation pit, the both ends of per pass load wall (3) one end with a jack (2) respectively
It is connected, the other end of every jack (2) is connected to is located at one end of one of the same side big stretch-drawing beam (1) with it；Xiao Zhang
It draws crossbeam (5) to be arranged in a manner of parallel with big stretch-drawing beam (1) in the inside of foundation pit, and passes through more essences disposed in parallel
Spiral (6) is rolled with one big stretch-drawing beam (1) to be connected；The mold includes two pieces of bed dies (7), four pieces of outer side molds
(8), side form (9), four pieces of end moulds (10), four side form closing devices (11), more foundation mould supporting legs (12), more foundation moulds in four pieces
Bottom plate (14) and polylith elastomer block (15) is turned up in connecting cross beam (13), polylith；Bottom plate (14) is wherein turned up using bolt along foundation pit
Length direction two row are arranged side by side in the middle part of the foundation pit on bottom surface；Lower end per foundation mould supporting leg (12) is installed by one piece of elastomer block
(15), every piece of elastomer block (15) is placed on one piece of surface that bottom plate (14) is turned up, for reducing shaking for dither motor (4)
It is dynamic；One piece of bed die (7) is fixed in the upper end of each column bed die supporting leg (12) simultaneously；The interior outer ledge of every piece of bed die (7) is respectively equipped with
One piece can be respectively equipped with one using the interior side form (9) and outer side mold (8), front and back end that side form closing device (11) are opened and closed
Reassembling type end mould (10)；More foundation mould connecting cross beam (13) intervals are connected between two pieces of bed dies (7)；More dither motors
(4) it is arranged at intervals on different bed die connecting cross beams (13).
2. ladder-type sleepers prefabricated construction device according to claim 1, it is characterised in that：The end mould (10) is by under
The supreme bottom plate (25) set gradually, intermediate end plate (16) and upper head plate (17) are constituted, wherein the upper end edge of bottom plate (25)
The lower edge of edge and upper head plate (17) is respectively formed multiple U-shaped prestress wire impenetrating mouths for being separated by setting, and under
Positioning pin is added on end plate (25), corner when form removal can be avoided to knock damage under the premise of ensuring registration in this way.
3. ladder-type sleepers prefabricated construction device according to claim 1, it is characterised in that：The interior side form (9) is in steel
Pipe junction and outer side mold (8) are detachable structure at boss, thus can split interior side form (9) and outer side mold (8)
At multistage, it is beneficial for disassembly and assembly in this way and reinforcing bar enters mould conveniently, and can avoid knocking damage caused by form removal at boss.
4. ladder-type sleepers prefabricated construction device according to claim 1, it is characterised in that：In production with track form
When ladder-type sleepers, each column elastomer block (15) and it is turned up between bottom plate (14) and is additionally provided with sliding rail groove (18), when prestressing force being made to put,
A mold energy whole slide, and the reset after sliding is put convenient for mold, stress when ladder-type sleepers being made to put can transmit naturally and
Track position or mold thereon is not damaged.
5. ladder-type sleepers prefabricated construction device according to claim 1, it is characterised in that：The jack (2) uses
The jack of 3000KN.
6. a kind of construction method using the prefabricated ladder-type sleepers of ladder-type sleepers prefabricated construction device described in claim 1, special
Sign is：The construction method includes the following steps carried out in order：
1) tie up ladder-type sleepers steel reinforcement cage on the ground first, steel reinforcement cage by more prestress wires (19), polylith sub-wire every
Plate (20) and multi-turn stirrup (21) are constituted, wherein more prestress wires (19) are arranged in parallel, and cross section is rectangular；Point
Be formed with multiple circular holes (22) for through prestress wire (19) on silk partition board (20), polylith sub-wire partition board (20) with
The vertical mode of prestress wire (19) is arranged at intervals in the middle part of prestress wire (19)；Stirrup (21) is looped around more in advance
The both sides position of prestress steel strand (19)；
2) each steel reinforcement cage is placed on to the surface of one piece of bed die (7), then anchors at the both ends of prestress wire (19) respectively
On another the big stretch-drawing beam (1) not being connected in small stretch-drawing beam (5) and with small stretch-drawing beam (5)；
3) lateral connection steel pipe between two steel reinforcement cages, reinforcing bar at boss, the accessory at suspension-center pre-embedded including bolt are installed；
4) it is synchronized using four jack (2) and ejects two big stretch-drawing beam (1) outward to carry out prestress wire (19)
Two-way entirety initial tensioning, then carries out prestress wire (19) using centre-hole jack on small stretch-drawing beam (5) by root
It is single look for it is even, recycle four jack (2) synchronize outward the two big stretch-drawing beam (1) of ejection to carry out two-way whole open eventually
It draws, until reaching required tensile force；
5) side form closing device (11) is utilized to mold interior side form (9) and outer side mold (8), under being installed first when end mould (10) is installed
End plate (25) makes the every prestress wire (19) on lower layer's prestress wire (19) be located at bottom plate (25) upper end
In each U-shaped prestress wire impenetrating mouth at edge, intermediate end plate (16) is then installed, upper head plate is installed again later
(17), the every prestress wire (19) on upper layer prestress wire (19) is made to be located at upper head plate (17) lower edge
Each U-shaped prestress wire impenetrating mouth in；
6) concrete is gradually poured in from one end of foundation pit to the other end using material distributing machine by bed die (7), outer side mold (8), interior
Start dither motor (4) in the space that side form (9) and end mould (10) are constituted, during perfusion to be vibrated, so that concrete
Pressure is caught up in top surface by closely knit molding in time later, smoothes out；And the pre-buried temperature sensor when last block ladder-type sleepers is perfused, with
Just the temperature variations inside real-time tracking detection ladder-type sleepers；
7) ladder-type sleepers are conserved using steam, until the intensity of ladder-type sleepers reaches 48Mpa；
8) it utilizes side form closing device (11) by interior side form (9) and outer side mold (8) die sinking, while by end mould (10) and above-mentioned matching
Part is dismantled；
9) it utilizes the synchronous retraction of four jack (2) and makes two big stretch-drawing beam (1) inward against movement, to carry out prestressing force
Putting for steel strand wires (19) is opened；
10) ladder-type sleepers that the polylith on every piece of bed die (7) links together are demoulded using lifting appliance, is thus completed
Entire work progress.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610609302.8A CN106217639B (en) | 2016-07-28 | 2016-07-28 | Ladder-type sleepers prefabricated construction device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610609302.8A CN106217639B (en) | 2016-07-28 | 2016-07-28 | Ladder-type sleepers prefabricated construction device and method |
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| CN106217639B true CN106217639B (en) | 2018-10-26 |
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| CN107460792A (en) * | 2017-08-15 | 2017-12-12 | 北京交通大学 | A kind of clad steel sleeper |
| CN108708228A (en) * | 2018-07-05 | 2018-10-26 | 华东交通大学 | The automatic compensation steel sleeper of symmetrical inclined block self locking formula sedimentation |
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| CN106217639A (en) | 2016-12-14 |
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