CN107988910B - A kind of upstroke movable framework template overall pulling down method - Google Patents
A kind of upstroke movable framework template overall pulling down method Download PDFInfo
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- CN107988910B CN107988910B CN201711286264.8A CN201711286264A CN107988910B CN 107988910 B CN107988910 B CN 107988910B CN 201711286264 A CN201711286264 A CN 201711286264A CN 107988910 B CN107988910 B CN 107988910B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
The invention discloses a kind of upstroke movable framework template overall pulling down methods, comprising the following steps: Step 1: the dismounting of sunpender and the installation of erecting by overhang；Step 2: formwork-support is disconnected with outrigger；Step 3: template integrally falls.By the present invention in that replacing sunpender integrally to hang template with multiple erectings by overhang, steel strand wires are discharged paragraph by paragraph using erecting by overhang, and template is integrally gradually fallen, realizes that template is integrally landed；It dismantles template on ground, avoids high-altitude from dismantling template, reduce the risk of form removal, improve the dismounting efficiency of template.
Description
Technical field
The invention belongs to technical field of bridge construction more particularly to a kind of upstroke movable framework template overall pulling down sides
Method.
Background technique
Upstroke movable framework system constructs for high-speed railway full span duplicate bridge and is designed, and is upstriker structure, can
The voluntarily main supporting leg of upside-down mounting.The girder system that upstroke movable framework is mainly characterized in that: load-bearing is located above bridge floor, and outer modular system is hung
It hangs in main bearing beam, girder system is supported on beam-ends or pier top by supporting leg.Outer modular system is laterally opened to keep away when via hole
Open bridge pier.Outer modular system is with the vertical shift together of girder system.Supporting leg can voluntarily upside-down mounting forward, upstroke movable framework occupies net under bridge
It is empty small, there is very strong adaptability to short bridge pier, and construct it is first across with end across and span continuous beam construction it is more convenient.
In the prior art, the form removable method of mobile formwork is mainly segmented to remove to template；It is existing
In method for dismounting, it is often necessary to use the large scale equipments such as crane, but in the construction operations ring such as some mountain area locations and hills location
The severe place in border, the large scale equipments such as crane cannot be introduced into construction site, the bed die of mobile formwork made to be difficult to remove；In addition, existing
The time that some bed die method for dismounting are spent is long, and is to remove bolt by worker paragraph by paragraph to remove bed die, Gong Renpin
Numerous dismounting bolt is easy to happen safety accident, jeopardizes worker's life security.Lacking one kind can not be limited by space enrironment, be spent
Time few and safe form removable method.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of upstriker shifting
Dynamic model frame template overall pulling down method is replaced sunpender integrally to hang template, is filled using hanging by using multiple erectings by overhang
Release steel strand wires paragraph by paragraph are set, template is integrally gradually fallen, realizes that template is integrally landed；Tear template on ground open
It unloads, avoids high-altitude from dismantling template, reduce the risk of form removal, improve the dismounting efficiency of template.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of upstroke movable framework template is whole
Method for dismounting, it is characterised in that: the upstroke movable framework is the mobile formwork bridge fabrication machine constructed to cast-in-situ concrete beam,
The upstroke movable framework include two bilateral symmetries be laid in same level girder, to cast-in-situ concrete beam carry out
Molding template and the mould plate supporting device being supported to template, two girders are symmetrically laid at left and right sides of template
Top；
The suspender that the mould plate supporting device is laid by two bilateral symmetries hangs the Mei Gesuo on two girders
Suspender is stated and includes multiple sunpenders being laid in below the same girder from front to back, below the same girder
Multiple sunpenders are laid on same vertical plane；
The mould plate supporting device includes multiple template support frame, length direction of multiple formwork-supports along template
It is uniformly distributed from front to back, the outside of each girder it is uniformly distributed from front to back have it is multiple to the formwork-support into
The outrigger of row hanging, the outrigger laid on two girders are symmetrically arranged, and each formwork-support passes through left and right
Two outriggers symmetrically laid are hung on two girders；
When carrying out overall pulling down to template, comprising the following steps:
Step 1: the dismounting of sunpender and the installation of erecting by overhang: all sunpenders in upstroke movable framework being removed, often
A sunpender is removed, an erecting by overhang is laid at the sunpender present position；
Each erecting by overhang includes the steel strand wires laid vertically, the retaining mechanism for locking steel strand wires, fixation
The lower template beam that is mounted on girder, the upper bearing beam being laid in right above lower template beam and branch are withstood between bearing beam and lower template beam
Jack, the retaining mechanism include the upper locking device being laid on bearing beam and the lower locking that is laid on the lower template beam
Device offers the upper threading hole passed through for steel strand wires, the cast-in-situ concrete beam on the upper bearing beam, lower template beam and girder
With the middle threading hole passed through for steel strand wires is provided in template, the upper threading hole is coaxially laid with the middle threading hole, institute
The lower part for stating steel strand wires is fixed on the formwork-support；
Multiple erecting by overhang groups monoblock type Lift-on/Lift-off System that the formwork-support and template are lifted in pairs；
Step 2: formwork-support is disconnected with outrigger: each formwork-support being disconnected with outrigger, is made
The droping space integrally to fall for template is formed below girder；
Step 3: template integrally falls: it falls several times to template from top to bottom,
Multiple erecting by overhang synchronization actions when the template of whereabouts, multiple erecting by overhang whereabouts templates are wrapped each time
Include following steps:
Step 301 opens lower locking device: all lower locking devices in the monoblock type Lift-on/Lift-off System are opened；
Step 302, jack are shunk: all jack in the monoblock type Lift-on/Lift-off System being shunk simultaneously, Duo Gesuo
The contraction height for stating jack is all the same, while template is transferred downwards, the contraction height phase of the decentralization height and jack of template
Together；
Step 303 closes lower locking device: all lower locking devices in the monoblock type Lift-on/Lift-off System are turned off；
Step 304 opens upper locking device: all upper locking devices in the monoblock type Lift-on/Lift-off System are opened；
Step 305, jack elongation: all jack in the monoblock type Lift-on/Lift-off System are extended, multiple described
The elongation height of jack is all the same, and elongation height is identical as the decentralization height of template next time；
Step 306 closes upper locking device: all upper locking devices in the monoblock type Lift-on/Lift-off System are turned off；
Step 301 is repeated several times to step 306, until template decentralization is completed in step 307.
A kind of above-mentioned upstroke movable framework template overall pulling down method, it is characterised in that: each described in step 1
The hanging external fin that formwork-support is laid in same level by two bilateral symmetries forms, and each hanging external fin is equal
The support segment that template is supported is made of with hanging segment lower end is connected to the hanging segment being connected on outrigger；Step
After disconnecting each formwork-support and outrigger in two, then by hanging segment and segment is supported to disconnect, finally
Remove hanging segment.
A kind of above-mentioned upstroke movable framework template overall pulling down method, it is characterised in that: in step 1, the locking
Tight device includes the upper flat anchor being fixedly mounted on bearing beam and the upper anchor clipper being mounted on flat anchor, the upper anchorage folder
Piece is clamped on steel strand wires, and the lower locking device includes flat anchor and being mounted on down on flat anchor under being fixedly mounted on lower template beam
Lower anchor clipper, the lower anchor clipper is clamped on steel strand wires.
A kind of above-mentioned upstroke movable framework template overall pulling down method, it is characterised in that: each described in step 1
Retaining mechanism further includes the additional locking devices being laid in girder lower wall；The additional locking devices and the upper locking fill
Set that structure is identical and parallel laying；The additional locking devices include the flat anchor of auxiliary being fixedly mounted on girder and are mounted on auxiliary
The auxiliary anchor clipper on flat anchor is helped, the auxiliary anchor clipper is clamped on steel strand wires；
All additional locking devices in step 301, while opening lower locking device, in the monoblock type Lift-on/Lift-off System
It opens；In step 303, while closing lower locking device, all additional locking devices in the monoblock type Lift-on/Lift-off System are closed
It closes.
A kind of above-mentioned upstroke movable framework template overall pulling down method, it is characterised in that: in step 1, the same institute
The multiple upper bearing beams stated in erecting by overhang are laid on the same line, front and back is adjacent in the same erecting by overhang two
A upper bearing beam is fixedly connected.
A kind of above-mentioned upstroke movable framework template overall pulling down method, it is characterised in that: in step 1, each institute
The lower part for stating steel strand wires is connect with the bottom of the formwork-support by a fixed locking device, the fixed locking device
Including the fixation anchor clipper for being fixedly mounted on the flat anchor of fixation of the formwork-support bottom and being mounted on fixed flat anchor, institute
Fixed anchor clipper is stated to be clamped on steel strand wires.
A kind of above-mentioned upstroke movable framework template overall pulling down method, it is characterised in that: on each steel strand wires
It is mounted on the anti-drop device for preventing fixed anchor clipper from falling off.
A kind of above-mentioned upstroke movable framework template overall pulling down method, it is characterised in that: described in being removed in step 1
When sunpender, the length direction along girder is performed in multiple times dismounting from front to back, removes two sunpenders every time, removes every time
Two sunpenders are located at below two girders and two sunpenders are symmetrically laid.
A kind of above-mentioned upstroke movable framework template overall pulling down method, it is characterised in that: removed described in two every time
When sunpender, to remove two sunpenders one by one after one first one.
Compared with the prior art, the present invention has the following advantages:
1, it by the present invention in that replacing sunpender integrally to hang template with multiple erectings by overhang, is released paragraph by paragraph using erecting by overhang
Steel strand wires are put, template is integrally gradually fallen, template is realized and integrally lands, high altitude operation when worker being avoided to dismantle template, drop
The low risk of form removal, improves the dismounting efficiency of template.
2, the present invention will be in each erecting by overhang by will be laid at sunpender present position, make to distribute on every steel strand wires
Template weight is reasonable, and structure is reliable and stable, and using effect is good.
3, jack is laid in the erecting by overhang that the present invention uses, staff is made to can use the retraction stroke of jack
Steel strand wires are discharged paragraph by paragraph, so that template is integrally landed process and stablizes safety.
4, lower template beam is laid in the lower section of jack in the erecting by overhang that the present invention uses, prevents very heavy top/bottom part to girder
The pressure of application generates damage to girder.
5, upper bearing beam and upper locking device are laid in the top of jack in the erecting by overhang that the present invention uses, in jack
Lower template beam and lower locking device are laid in lower section, make jack when shrinking, steel strand wires be located at hanging external fin bottom and upper bearing beam it
Between segment stable can decline with the contraction of jack；Make in jack in elongation, steel strand wires can be located at upper
Part on the outside of bearing beam discharges one section and enters between upper bearing beam and lower template beam, when jack being made to extend a stroke, steel strand wires
Discharge a jack stroke；Realize release steel strand wires paragraph by paragraph.
6, cloth sets locking device and upper locking device in the erecting by overhang that the present invention uses, and ensure that jack is extending
When with shrinking, steel strand wires hang stablizing for template.
In conclusion utilizing hanging dress by the present invention in that replace sunpender integrally to hang template with multiple erectings by overhang
Release steel strand wires paragraph by paragraph are set, template is integrally gradually fallen, realizes that template is integrally landed；Tear template on ground open
It unloads, avoids high-altitude from dismantling template, reduce the risk of form removal, improve the dismounting efficiency of template.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Fig. 1 is the flow chart of method for dismounting of the present invention
Fig. 2 is the structural schematic diagram of erecting by overhang in the present invention.
Fig. 3 is the A enlarged drawing of Fig. 1.
Fig. 4 is enlarged drawing at the D of Fig. 2.
Fig. 5 is enlarged drawing at the E of Fig. 2.
Fig. 6 is the B enlarged drawing of Fig. 1.
Fig. 7 is enlarged drawing at the C of Fig. 1.
Fig. 8 is enlarged drawing at the F of Fig. 6.
Fig. 9 is layout position illustration of the upper threading hole on girder.
Figure 10 is enlarged drawing at the G of Fig. 8.
Figure 11 is layout position illustration of the erecting by overhang in upstroke movable framework.
Figure 12 is the structural schematic diagram after the hanging segment of upstroke movable framework is removed.
Description of symbols:
1-erecting by overhang；2-steel strand wires；3-outriggers；
4-girders；5-hanging segments；6-support segments；
7-jack；8-flat the anchors of auxiliary；9-auxiliary anchor clippers；
10-upper bearing beams；11-upper flat anchors；12-upper anchor clippers；
Flat anchor under 13-；14-lower anchor clippers；15-fixed anchor clippers；
16-fixed flat anchors；17-underpass holes；18-upper threading holes；
19-anti-drop devices；20-lower template beams；21-cast-in-situ concrete beams；
22-templates.
Specific embodiment
A kind of upstroke movable framework template overall pulling down method, as shown in figs. 2 and 11, which is
To the mobile formwork bridge fabrication machine that cast-in-situ concrete beam 21 is constructed, the upstroke movable framework includes two bilateral symmetry cloth
The girder 4 that is located in same level carries out molding template 22 to cast-in-situ concrete beam 21 and is supported to template 22
Mould plate supporting device, two girders 4 are symmetrically laid in the top of 22 left and right sides of template；
The suspender that the mould plate supporting device is laid by two bilateral symmetries is hung on two girders 4；
In the present embodiment, each suspender includes 16 and is laid in the same girder 4 from front to back
16 sunpenders of the sunpender of lower section, same 4 lower section of girder are laid on same vertical plane；
In the present embodiment, the mould plate supporting device includes eight formwork-supports, and eight formwork-supports are along mould
The length direction of plate 22 is uniformly distributed from front to back, the outside of each girder 4 it is uniformly distributed from front to back have eight it is right
The outrigger 3 that the formwork-support is hung, the outrigger 3 laid on two girders 4 are symmetrically arranged, each mould
Plate bracing frame passes through the outrigger 3 that left and right two is symmetrically laid and hangs on two girders 4；
In the present embodiment, each formwork-support is laid in the hanging in same level by two bilateral symmetries
External fin composition, each hanging external fin is by the hanging segment 5 being connected on outrigger 3 and is connected to hanging 5 lower end pair of segment
The support segment 6 that template 22 is supported forms；Between each support segment 6 and girder 4 above it there are two hangings
The sunpender；The sunpender is fining twisted steel.
Such as Fig. 1,22 overall pulling down of template the following steps are included:
Step 1: the installation of the dismounting of sunpender and erecting by overhang 1: all sunpenders in upstroke movable framework are torn open one by one
It removes, one sunpender of every dismounting, an erecting by overhang 1 is laid at the sunpender present position；
As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 9, each erecting by overhang 1 includes the steel strand wires 2 laid vertically, is used for
The retaining mechanism for locking steel strand wires 2, the lower template beam 20 being fixedly mounted on girder 4, the upper pad being laid in right above lower template beam 20
Beam 10 and branch withstand on jack 7 between bearing beam 10 and lower template beam 20, as shown in Fig. 2, in the present embodiment, described in each
The quantity of jack 7 in erecting by overhang 1 is two, and two jack 7 in the same erecting by overhang 1 are symmetrically laid, and
Two jack 7 prop up respectively to be withstood between the left and right sides of bearing beam 10 and the left and right sides of lower template beam 20；
The retaining mechanism includes the upper locking device being laid on bearing beam 10 and is laid on the lower template beam 20
Lower locking device offers the upper threading hole 18 passed through for steel strand wires 2, institute on the upper bearing beam 10, lower template beam 20 and girder 4
State the middle threading hole for being provided in cast-in-situ concrete beam 21 and template 22 and passing through for steel strand wires 2, the upper threading hole 18 and institute
It states middle threading hole coaxially to lay, the lower part of the steel strand wires 2 is fixed on the formwork-support；In the present embodiment, it is described in
Threading hole is the through-hole passed through for the sunpender；
1 group of multiple erectings by overhang monoblock type lifting system that the formwork-support and template 22 are lifted in pairs
System；
As shown in Figure 10, in the present embodiment, the quantity for the erecting by overhang 1 laid on every girder 4 is 16, Mei Gesuo
State corresponding two erectings by overhang 1 in support segment 6；Both two original sunpenders were replaced to support one using two erectings by overhang 1
It is hung segment 6；It is original sunpender and the support at the link position of the lower part of the steel strand wires 2 and the support segment 6
At the link position of segment 6；
Step 2: formwork-support is disconnected with outrigger: each formwork-support is disconnected with outrigger 3,
Make to form the droping space integrally to fall for template 22 below girder 4；
Step 3: template integrally falls: it falls several times to template 22 from top to bottom,
Multiple 1 synchronization actions of erecting by overhang when the template 22 of whereabouts each time, multiple 1 whereabouts templates of erecting by overhang
22 the following steps are included:
Step 301 opens lower locking device: all lower locking devices in the monoblock type Lift-on/Lift-off System are opened；
Step 302, jack are shunk: all jack 7 in the monoblock type Lift-on/Lift-off System being shunk simultaneously, Duo Gesuo
The contraction height for stating jack 7 is all the same, while template 22 is transferred downwards, the contraction of the decentralization height and jack 7 of template 22
It is highly identical；
Step 303 closes lower locking device: all lower locking devices in the monoblock type Lift-on/Lift-off System are turned off；
Step 304 opens upper locking device: all upper locking devices in the monoblock type Lift-on/Lift-off System are opened；
Step 305, jack elongation: all jack 7 in the monoblock type Lift-on/Lift-off System are extended, multiple described
The elongation height of jack 7 is all the same, and elongation height is identical as the decentralization height of template 22 next time；
Step 306 closes upper locking device: all upper locking devices in the monoblock type Lift-on/Lift-off System are turned off；
Step 301 is repeated several times to step 306, until the decentralization of template 22 is completed in step 307.
As shown in figure 12, in the present embodiment, each formwork-support is laid by two bilateral symmetries in step 1
Hanging external fin composition in same level, each hanging external fin is by the hanging segment 5 being connected on outrigger 3 and even
It connects and the support segment 6 that template 22 is supported is formed in hanging 5 lower end of segment；By each formwork-support in step 2
After disconnecting with outrigger 3, then by hanging segment 5 and segment 6 is supported to disconnect, finally removes hanging segment 5.
As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, in the present embodiment, in step 1, the upper locking device includes being fixedly mounted
The upper flat upper anchor clipper 12 anchor 11 and be mounted on upper flat anchor 11 on upper bearing beam 10, the upper anchor clipper 12 are clamped in
On steel strand wires 2, the lower locking device includes flat anchor 13 and being mounted on down on flat anchor 13 under being fixedly mounted on lower template beam 20
Lower anchor clipper 14, the lower anchor clipper 14 is clamped on steel strand wires 2；It, will be upper when opening upper locking device in step 3
Anchor clipper 12 is removed from upper flat anchor 11, then upper anchor clipper 12 is removed from steel strand wires 2, when closing upper locking device,
Upper anchor clipper 12 is clamped on steel strand wires 2, then upper anchor clipper 12 is mounted in upper flat anchor 11, makes anchor clipper 12
Clamp steel strand wires 2；When opening lower locking device, lower anchor clipper 14 is removed on flat anchor 13 under, then by lower anchor clipper 14
It removes from steel strand wires 2, when closing lower locking device, lower anchor clipper 14 is clamped on steel strand wires 2, then by lower anchor clipper
14 are mounted on down in flat anchor 13, and lower anchor clipper 14 is made to clamp steel strand wires 2.
As shown in Figure 2 and Figure 6, in the present embodiment, in step 1, each retaining mechanism further includes being laid in girder 4
Additional locking devices in lower wall；Additional locking devices laying identical and parallel with the upper locking device structure；Institute
Stating additional locking devices includes the flat anchor 8 of auxiliary being fixedly mounted on girder 4 and the auxiliary anchorage folder being mounted on the flat anchor 8 of auxiliary
Piece 9, the auxiliary anchor clipper 9 are clamped on steel strand wires 2；
All additional locking devices in step 301, while opening lower locking device, in the monoblock type Lift-on/Lift-off System
It opens；In step 303, while closing lower locking device, all additional locking devices in the monoblock type Lift-on/Lift-off System are closed
It closes.
When opening additional locking devices, auxiliary anchor clipper 9 is removed from the flat anchor 8 of auxiliary, then anchor clipper 9 will be assisted
It removes from steel strand wires 2, when closing additional locking devices, auxiliary anchor clipper 9 is clamped on steel strand wires 2, then by piggy-back anchor
Tool intermediate plate 9 is mounted in the flat anchor 8 of auxiliary, makes that anchor clipper 9 is assisted to clamp steel strand wires 2.
The purpose for laying the additional locking devices is to improve the safety of the whole landing process of the template 22.Thousand
When jin top 7 is shunk, the lower locking device and the additional locking devices are opened；When jack 7 extends, lower lock is simultaneously closed off
Tight device and the additional locking devices；By the way that the auxiliary locking dress is arranged below each lower locking device
It sets, additional locking devices lock steel strand wires 2 as insurance together, prevent lower locking device from losing to the locking of steel strand wires 2
Accident occurs when effect.
In the present embodiment, in step 1, multiple upper bearing beams 10 in the same erecting by overhang are laid in same
On straight line, two adjacent upper bearing beams 10 of front and back are fixedly connected in the same erecting by overhang.
It should be noted that multiple upper bearing beams 10 in the same erecting by overhang constitute another completely
Girder steel.Multiple lower template beams 20 in the same erecting by overhang constitute another complete girder steel.
As shown in figs. 2,7 and 8, in the present embodiment, in step 1, the lower part of each steel strand wires 2 with it is described
The bottom of external fin is hung by a fixed locking device connection, the fixed locking device includes being fixedly mounted on the hanging
The fixation anchor clipper 15 fixation of the bottom of external fin flat anchor 16 and be mounted on fixed flat anchor 16, the fixed anchor clipper 15
It is clamped on steel strand wires 2.
It should be noted that link position of each downrod lower end in the bottom of the hanging external fin is hanger erection
Point；The underpass hole 17 passed through for steel strand wires 2 is offered at each hanger erection point, each underpass hole 17
Lower mouth end is respectively mounted the fixed locking device, lay the purpose of fixed locking device first is that fixed steel strand wires 2 lower part,
Second is that keeping the installation and removal between steel strand wires 2 and the bottom of the hanging external fin time saving and energy saving.
In the present embodiment, the anti-drop device for preventing fixed anchor clipper 15 from falling off is mounted on each steel strand wires 2
19。
It should be noted that the anti-drop device 19 is the steel billet being welded on steel strand wires 2.
It should be noted that the upper locking device, the lower locking device, the additional locking devices and the fixation
Locking device is all made of flat anchor cooperation anchor clipper to realize that locking steel strand wires 2 press from both sides anchorage when needing to lock steel strand wires 2
Two valves of piece are fastened on steel strand wires 2, make anchor clipper stuck in flat anchor, are produced by anchor clipper to the clamping of steel strand wires 2
Raw big frictional force, realizes the locking to steel strand wires 2, when taking out anchor clipper from steel strand wires 2, then to steel strand wires 2
Locking failure.Anchor clipper locking to steel strand wires 2 is cooperated using flat anchor, not only the locking effect of steel strand wires 2 is stablized,
And flat anchor and anchor clipper can directly buy acquisition, when flat anchor and anchor clipper damage, can directly buy new flat anchor
It is replaced with anchor clipper.Help to improve working efficiency when removing the template entirety.
When removing the sunpender in the present embodiment, in step 1, the length direction along girder 4 is performed in multiple times from front to back
It removes, removes two sunpenders every time, two sunpenders removed every time are located at two girders, 4 lower section and two institutes
Sunpender is stated symmetrically to lay.When removing two sunpenders every time, to remove two sunpenders one by one after one first one.
It should be noted that remove two sunpenders symmetrically laid every time, be in order to remove two sunpenders after
Two erectings by overhang 1 of installation can be symmetrical, enables to install the influence left-right balance that erecting by overhang 1 generates template 22.Often
When two sunpenders of secondary dismounting, if removing two sunpenders simultaneously, the hanging force that will lead to other sunpenders increases too many, tool
There is one to be set to danger；It is dangerous when removing sunpender in order to reduce as far as possible using two sunpenders are removed one by one after one first one
Property.
The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any way, it is all according to the present invention
Technical spirit any simple modification to the above embodiments, change and equivalent structural changes, still fall within skill of the present invention
In the protection scope of art scheme.
Claims (9)
1. a kind of upstroke movable framework template overall pulling down method, it is characterised in that: the upstroke movable framework is to cast-in-place
The mobile formwork bridge fabrication machine that beams of concrete (21) is constructed, the upstroke movable framework include that two bilateral symmetries are laid in
Girder (4) in same level carries out molding template (22) to cast-in-situ concrete beam (21) and props up template (22)
The mould plate supporting device of support, two girders (4) are symmetrically laid in the top at left and right sides of template (22)；
The suspender that the mould plate supporting device is laid by two bilateral symmetries hangs the Mei Gesuo on two girders (4)
Stating suspender includes multiple sunpenders being laid in below the same girder (4) from front to back, the same girder (4)
Multiple sunpenders of lower section are laid on same vertical plane；
The mould plate supporting device includes multiple template support frame, length direction of multiple formwork-supports along template (22)
It is uniformly distributed from front to back, the outside of each girder (4) it is uniformly distributed from front to back have it is multiple to the shuttering supporting
The outrigger (3) that frame is hung, the outrigger (3) laid on two girders (4) are symmetrically arranged, each shuttering supporting
Frame passes through the outrigger (3) that left and right two is symmetrically laid and hangs on two girders (4)；
When carrying out overall pulling down to template (22), comprising the following steps:
Step 1: the dismounting of sunpender and the installation of erecting by overhang: all sunpenders in upstroke movable framework being removed, every dismounting
One sunpender lays an erecting by overhang (1) at the sunpender present position；
Each erecting by overhang (1) include lay vertically steel strand wires (2), the retaining mechanism for locking steel strand wires (2),
The lower template beam (20) that is fixedly mounted on girder (4), the upper bearing beam (10) being laid in right above lower template beam (20) and branch are withstood on
Jack (7) between upper bearing beam (10) and lower template beam (20), the retaining mechanism are upper on bearing beam (10) including being laid in
Locking device and the lower locking device being laid on the lower template beam (20), the upper bearing beam (10), lower template beam (20) and girder
(4) the upper threading hole (18) passed through for steel strand wires (2) is offered on, on the cast-in-situ concrete beam (21) and template (22)
It is provided with the middle threading hole passed through for steel strand wires (2), the upper threading hole (18) is coaxially laid with the middle threading hole, the steel
The lower part of twisted wire (2) is fixed on the formwork-support；
Multiple erectings by overhang (1) organize the monoblock type lifting that the formwork-support and template (22) are lifted in pairs
System；
Step 2: formwork-support is disconnected with outrigger: each formwork-support and outrigger (3) being disconnected, made
The droping space integrally to fall for template (22) is formed below girder (4)；
Step 3: template integrally falls: it falls several times to template (22) from top to bottom,
Multiple erecting by overhang (1) synchronization actions when whereabouts template (22) each time, stamping die under multiple erectings by overhang (1)
Plate (22) the following steps are included:
Step 301 opens lower locking device: all lower locking devices in the monoblock type Lift-on/Lift-off System are opened；
Step 302, jack are shunk: all jack (7) in the monoblock type Lift-on/Lift-off System shunk simultaneously, it is multiple described
The contraction height of jack (7) is all the same, while template (22) is transferred downwards, decentralization height and jack (7) of template (22)
Contraction height it is identical；
Step 303 closes lower locking device: all lower locking devices in the monoblock type Lift-on/Lift-off System are turned off；
Step 304 opens upper locking device: all upper locking devices in the monoblock type Lift-on/Lift-off System are opened；
Step 305, jack elongation: all jack (7) in the monoblock type Lift-on/Lift-off System are extended, multiple described thousand
The elongation height on jin top (7) is all the same, and elongation height is identical as the decentralization height of template (22) next time；
Step 306 closes upper locking device: all upper locking devices in the monoblock type Lift-on/Lift-off System are turned off；
Step 301 is repeated several times to step 306, until template (22) decentralization is completed in step 307.
2. a kind of upstroke movable framework template overall pulling down method described in accordance with the claim 1, it is characterised in that: step 1
In the hanging external fin that is laid in same level by two bilateral symmetries of each formwork-support form, it is each described
Hanging external fin is by the hanging segment (5) being connected on outrigger (3) and is connected to hanging segment (5) lower end to template (22) progress
The support segment (6) of support forms；After disconnecting each formwork-support and outrigger (3) in step 2, then it will hang
It hangs segment (5) and support segment (6) disconnects, finally remove hanging segment (5).
3. a kind of upstroke movable framework template overall pulling down method according to claim 1 or 2, it is characterised in that: step
In rapid one, the upper locking device includes the upper flat anchor (11) being fixedly mounted on bearing beam (10) and is mounted on flat anchor (11)
On upper anchor clipper (12), the upper anchor clipper (12) is clamped on steel strand wires (2), and the lower locking device includes fixing
Flat anchor (13) and the lower anchor clipper (14) being mounted on down on flat anchor (13), the lower anchorage under being mounted on lower template beam (20)
Intermediate plate (14) is clamped on steel strand wires (2).
4. a kind of upstroke movable framework template overall pulling down method according to claim 1 or 2, it is characterised in that: step
In rapid one, each retaining mechanism further includes the additional locking devices being laid in girder (4) lower wall；The auxiliary locking
Device laying identical and parallel with the upper locking device structure；The additional locking devices include being fixedly mounted on girder (4)
On the flat anchor of auxiliary (8) and be mounted on the auxiliary anchor clipper (9) assisted on flat anchor (8), auxiliary anchor clipper (9) clamping
On steel strand wires (2)；
In step 301, while opening lower locking device, all additional locking devices in the monoblock type Lift-on/Lift-off System are beaten
It opens；In step 303, while closing lower locking device, all additional locking devices in the monoblock type Lift-on/Lift-off System are closed.
5. a kind of upstroke movable framework template overall pulling down method according to claim 1 or 2, it is characterised in that: step
In rapid one, multiple upper bearing beams (10) in the same erecting by overhang are laid on the same line, same described to hang
Two adjacent upper bearing beams (10) of front and back are fixedly connected in hang device.
6. a kind of upstroke movable framework template overall pulling down method according to claim 1 or 2, it is characterised in that: step
In rapid one, the lower part of each steel strand wires (2) and the bottom of the formwork-support are connected by a fixed locking device
It connects, the fixed locking device includes being fixedly mounted on the flat anchor of fixation (16) of the formwork-support bottom and being mounted on fixation
Fixation anchor clipper (15) on flat anchor (16), the fixed anchor clipper (15) are clamped on steel strand wires (2).
7. a kind of upstroke movable framework template overall pulling down method according to claim 6, it is characterised in that: Mei Gesuo
State the anti-drop device (19) for being mounted on steel strand wires (2) and preventing fixed anchor clipper (15) from falling off.
8. a kind of upstroke movable framework template overall pulling down method according to claim 1 or 2, it is characterised in that: step
When removing the sunpender in rapid one, the length direction along girder (4) is performed in multiple times dismounting from front to back, removes two institutes every time
Sunpender is stated, two removed every time piece sunpender is located at below two girders (4) and two sunpenders are symmetrically laid.
9. a kind of upstroke movable framework template overall pulling down method according to claim 8, it is characterised in that: tear open every time
When except two sunpenders, to remove two sunpenders one by one after one first one.
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| CN201711286264.8A CN107988910B (en) | 2017-12-07 | 2017-12-07 | A kind of upstroke movable framework template overall pulling down method |
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| CN201711286264.8A CN107988910B (en) | 2017-12-07 | 2017-12-07 | A kind of upstroke movable framework template overall pulling down method |
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| CN107988910A CN107988910A (en) | 2018-05-04 |
| CN107988910B true CN107988910B (en) | 2019-03-01 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110055908B (en) * | 2019-05-05 | 2020-10-02 | 中国铁建大桥工程局集团有限公司 | Demolition construction method of upstroke movable formwork for bridge construction |
| CN110295545A (en) * | 2019-06-03 | 2019-10-01 | 中铁大桥局集团有限公司 | The erecting by overhang and its application method removed for upstroke movable framework side form |
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| JPH1181242A (en) * | 1997-09-03 | 1999-03-26 | Mitsui Miike Mach Co Ltd | Precast block installation device |
| CN201003145Y (en) * | 2007-02-12 | 2008-01-09 | 郑州大方桥梁机械有限公司 | Upward and self-walking type mobile die carrier |
| CN204125840U (en) * | 2014-08-27 | 2015-01-28 | 中铁二局股份有限公司 | Mould bases transverse beam system is placed in two nose girder mobile formwork bridge fabrication machines of main tank top surface of the beam |
| JP2015059407A (en) * | 2013-09-20 | 2015-03-30 | 川田建設株式会社 | Concrete block curing device for girder |
| CN105297637A (en) * | 2015-11-25 | 2016-02-03 | 中铁二十局集团有限公司 | Method for integrally disassembling descending movable formwork bridging machine |
| CN107313352A (en) * | 2017-08-11 | 2017-11-03 | 山东省路桥集团有限公司 | Upstroke movable framework bed die automatic open-close system and bed die automatic open-close method |
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| JPH1181242A (en) * | 1997-09-03 | 1999-03-26 | Mitsui Miike Mach Co Ltd | Precast block installation device |
| CN201003145Y (en) * | 2007-02-12 | 2008-01-09 | 郑州大方桥梁机械有限公司 | Upward and self-walking type mobile die carrier |
| JP2015059407A (en) * | 2013-09-20 | 2015-03-30 | 川田建設株式会社 | Concrete block curing device for girder |
| CN204125840U (en) * | 2014-08-27 | 2015-01-28 | 中铁二局股份有限公司 | Mould bases transverse beam system is placed in two nose girder mobile formwork bridge fabrication machines of main tank top surface of the beam |
| CN105297637A (en) * | 2015-11-25 | 2016-02-03 | 中铁二十局集团有限公司 | Method for integrally disassembling descending movable formwork bridging machine |
| CN107313352A (en) * | 2017-08-11 | 2017-11-03 | 山东省路桥集团有限公司 | Upstroke movable framework bed die automatic open-close system and bed die automatic open-close method |
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| CN107988910A (en) | 2018-05-04 |
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