CN105970822A - 50 m twin-deck overlane type movable scaffold and corresponding beam manufacturing construction method thereof - Google Patents
50 m twin-deck overlane type movable scaffold and corresponding beam manufacturing construction method thereof Download PDFInfo
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- CN105970822A CN105970822A CN201610412054.8A CN201610412054A CN105970822A CN 105970822 A CN105970822 A CN 105970822A CN 201610412054 A CN201610412054 A CN 201610412054A CN 105970822 A CN105970822 A CN 105970822A
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- Prior art keywords
- construction
- double width
- girder
- movable framework
- bridge
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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
Abstract
The invention relates to a 50 m twin-deck overlane type movable scaffold and a corresponding beam manufacturing construction method thereof and belongs to the technical field of methods or equipment special for erecting or assembling bridges. A lower suspended beam of the scaffold is provided with a subsection beam. A flange plate of a pouring template is fixedly connected to the subsection beam. The pouring template is fixedly connected to the lower suspended beam. When the subsection beam is in the closed state, the front end of the flange plate is unfolded. When the subsection beam is in the unfolded state, the flange plate contracts. The method comprises the steps of (1) assembly of the scaffold, (2) prepressing, (3) beam manufacturing construction of a first span beam, (4) freeing of constructed pier positions, (5) the first time of conversion of a stress system, (6) moving and passing of a hole, (7) the second time of conversion of the stress system, and (8) construction of a second span beam. According to the 50 m twin-deck overlane type movable scaffold and the corresponding beam manufacturing construction method thereof, a twin-deck-distance bride floor is constructed through an integral construction mode so that the problems caused by too small bride floor space can be solved effectively. Construction is made in the integral construction mode, so that the construction efficiency is improved, and the construction process is accelerated.
Description
Technical field
The present invention relates to a kind of 50m double width upstroke movable framework and corresponding beam-making construction method thereof, belong to special
For setting up or assemble method or the equipment technical field of bridge.
Background technology
When above deeper mountain valley, having above the water ferry of steep slope, at highway or railway or environment
Time above protection zone, the bridge construction on-site concrete casting carrying out whole bridge span there will be many problems.
Removable form frame system (MSS) for bridge construction is the bridge cast-in-place construction method of a kind of advanced person, for beam
Body construction provides supporting surface and work surface, it is to avoid support is set up, and its construction characteristic is not by construction site, pier
Body limitation in height, it is possible to the obstacles such as cross-domain river, mountain valley；Without basement process, set up support by cross, can profit
With construction bearing platform, pier shaft as the strong point, integral forward lead continues construction to next beam bridge position, hole voluntarily, executes
Work speed is fast；Mobile formwork is heavy construction equipment, without repeating to remove, set up in work progress, and construction peace
Entirely, reliably.The advantage being better than tradition mould bases can be provided, including environment being caused less interference, to upper
Layer building assembles and provides the working region more concentrated, and improves the safety of workman while the architectural environment improved
Deng.
MSS is made up of the supporting construction crossed between two bridge piers, supports or pendent form from bridge pier.Internal template
(core form) is collapsible and can run on guide track system, in order to be repositioned onto next bridge span.This is
The outer template of system can fully be opened and pass through around bridge pier in the period outer template advanced with change.In traveling
After, outer template closes again, and after being set to be correctly aligned, just can start to place stiffener.
MSS can be divided into two types, including downstriker (underlane) or be called suspension type (underslung) with
And upstriker (overlane) or be called support formula (overhead).The MSS of downstriker has the two of support shuttering
Individual parallel girder.The MSS of upstriker has one or two girder, and template is suspended in midair from girder.
Select to use which kind of type to depend on field condition, such as limitation in height, bridge floor type (such as single cable plane,
Double rope faces, double T) and bridge pier height.
Self-propelled moveable formwork (SL-MSS) is for processing the bridge pier support on the water and on relatively high pier
The difficult problem that frame (bracket) is relevant.This system can forward also in the case of without any independent crane
Bridge pier is installed and supports support.SL-MSS has been successfully used to the building of global multinomial large bridge project, and
And owing to its cost and operation efficiency are the most extensively being welcome.
Although MSS has many advantages, but current MSS also has the existing issue added.Including needing
Construction period that will be longer, it is impossible to transmit whole steel reinforcement cage simultaneously or once transmit whole steel reinforcement cage, on upper strata
Building needs some barrier closures (block-outs), needs to carry out support shuttering by superstructure deck
Hang muscle, need to be used for reorientating miscellaneous equipment necessary to supporting part, and complexity of its operation and
Expend more labour force.
Additionally, MSS be only capable of meeting the construction of single width beam body or left and right width beam body spacing bigger time, left and right width beam body is respectively
Construction.When left and right width beam body spacing is the least, traditional single width upstriker, downlink movable mould frame all cannot be expired
The needs of foot mobile formwork die sinking via, it is therefore necessary to tradition Construction Through Form on Traveler method is carried out innovation research,
To meet being actually needed in engineering.
Summary of the invention
The technical problem to be solved in the present invention is, not enough for prior art, proposes a kind of width amplitude and reaches 50m
The double width upstroke movable framework across bridge left and right width beam body and corresponding beam-making construction method, this moves
Mould bases disclosure satisfy that the bridge building operations under Small Distance, it is to avoid causes owing to left and right width beam body spacing is too small
Cannot the problem such as die sinking via.
The present invention is to solve that the first technical scheme that above-mentioned technical problem proposes is: a kind of 50m double width is up
Formula mobile formwork, including for launching from bottom to carry out bridge beam body form removal or from bottom closure to pour bridge
The main body construction mould of beam body, it is supported on the middle supporting leg of described bridge beam body for carrying described main body construction mould
Have and drive girder that described main body construction mould vertically moves along described bridge beam body, be supported in described Bridge Beam
The upper use of bridge beam body is poured for carrying out the bridge of the nose that guides and being supported in for described girder on the front leg strut of body
In assisting described girder to vertically move along described bridge beam body and laterally adjusting the rear vertical shift of song along described bridge beam body；
Described main body construction mould hangs on described girder, and the described bridge of the nose is loaded on the end that moves ahead of described girder, described after
Vertical shift is loaded on the rear end of described girder；Described main body construction mould includes being plugged in along the transverse horizontal of described girder
Entablature, the lower drop in beam hung on described entablature on described girder, it is fixed on described lower drop in beam and uses
In pouring the formwork for placing of bridge beam body and launching from bottom or the control machine of Guan Bi for controlling described lower drop in beam
Structure；Described entablature is provided with many and the most equidistantly arranging along described girder, right on each entablature
Should be hung with lower drop in beam described in a pair, described lower drop in beam hangs on described entablature from the beam sides of described entablature
Two ends；Described formwork for placing hangs on described entablature by suspension rod, and the bottom of described lower drop in beam is equipped with point
Duan Liang, the flange plate correspondence of described formwork for placing is fixed on each segmentation beam；Described controlling organization includes being located at institute
State between entablature and described lower drop in beam for driving described lower drop in beam along described entablature transverse shifting so that described
The drop in beam slide, horizontal along described girder for regulating described drop in beam slide that segmentation beam separates from bottom and launches
First hydraulic jack of displacement, launch or the second hydraulic jack of Guan Bi and being used for for controlling described segmentation beam
The bridge piece mutually overlapped between described segmentation beam separated part；
Be connected with on described lower drop in beam that pair of parellel is arranged on described lower drop in beam for pouring double width bridge beam body
Formwork for placing；
When described segmentation beam is in closure state, the front end of described flange plate is supported by the 3rd hydraulic jack and opens up
Open；
When described segmentation beam is in deployed condition, the front end of described flange plate is driven by the 3rd hydraulic jack and receives
Contracting.
The improvement of technique scheme is: be provided with for pushing the middle dolly that girder vertically moves bottom described girder,
It is provided with between described middle dolly and described girder for described girder is pushed longitudinally toward described front leg strut direction
First vertical shift hydraulic jack；Described first vertical shift hydraulic jack is installed on described middle dolly, described first vertical shift
The outfan of hydraulic jack is slidably connected on the first slide rail bottom described girder by the first slide block；Described
Be provided with between one slide block and described first slide rail in described first vertical shift hydraulic jack output procedure to described
First slide block and described first slide rail carry out the first keeper being mutually located.
The improvement of technique scheme is: described rear vertical shift and having poured is provided with between bridge beam body for by described
The second vertical shift hydraulic jack that rear vertical shift longitudinally pushes towards described middle supporting leg direction along described girder；Described second indulges
Move hydraulic jack by the second slide block be connected to described in poured on the second slide rail of bridge beam body upper surface, described
The outfan of the second vertical shift hydraulic jack is connected on the bottom slide of described rear vertical shift, and described bottom slide slides
It is connected on described second slide rail；It is provided with between described second slide block and described second slide rail for described second
Second in vertical shift hydraulic jack output procedure be mutually located described second slide block and described second slide rail is fixed
Position part.
The improvement of technique scheme is: be provided with for regulating described girder between described rear vertical shift and described girder
Along the displacement radially of described girder with adjust described girder towards the first traversing hydraulic jack.
The improvement of technique scheme is: described main body construction mould contains drop in beam under 14 groups altogether.
Having the beneficial effect that of the first technical scheme of the present invention
1) the 50m double width upstroke movable framework of the present invention is joined by segmentation beam, flange plate and with these parts
The oil cylinder closed so that 50m double width upstroke movable framework can overall vertical shift via.
2) the traversing oil cylinder pushing 50m double width upstroke movable framework matched with rear vertical shift and middle dolly laterally moves
Dynamic, it is achieved the midline position of 50m double width upstroke movable framework is adjustable, it is ensured that 50m double width upstriker moves
Mould bases beam is linear can be linear consistent with design.
3) design of vertical shift track after mobile formwork, when making vertical shift, rear fulcrum, central bearing point, front fulcrum longitudinal gradient are all the time
Unanimously, it is to avoid girder, bridge of the nose concentration of local stress, it is ensured that Construction Through Form on Traveler safety.
4) the 50m double width upstroke movable framework stamping die of the present invention, template folds, die sinking, mould bases entirety vertical shift
Via, matched moulds jacking is all automatically controlled by hydraulic system, synchronous working, and constructing operation is simple, convenient, fast
Prompt, safe and reliable.
5) the rear vertical shift of the present invention, middle dolly are designed with traverse beam and traversing oil cylinder, and mobile formwork can be horizontal
Mobile, adjust attitude, make mobile formwork axis the most consistent with design.
6), after the mobile formwork stamping die of the present invention, mobile mould is born by rear vertical shift, middle dolly, front leg strut 3
Frame is conducted oneself with dignity, and rear vertical shift, middle dolly are respectively designed with vertical shift pipe bending cylinder, and mobile formwork described in synchronous push is overall
Via；Rear vertical shift is designed with vertical shift track, and described rear vertical shift and mobile formwork move ahead along track, middle dolly, front
Supporting leg maintains static, and in described mobile formwork edge, the slideway straight skidding on dolly, front leg strut moves ahead；Mobile mould
Frame disclosure satisfy that the bridge beam body beam the most processed construction of left and right sides double width, and overall stamping die, vertical shift via.
The present invention is to solve that the second technical scheme that above-mentioned technical problem proposes is on a kind of application 50m double width
Line mobile formwork carries out the method for beam processed construction, and the construction procedure of the method is as follows:
(1) after completing the pier construction in assembled region of described 50m double width upstroke movable framework, working as
Front construction pier position carries out the assembled work of described 50m double width upstroke movable framework；
(2) sandbag, water bag compound mode is used to carry out the precompressed work of described 50m double width upstroke movable framework；
(3) the first bridge is carried out beam processed construction；
(4) after described first bridge initial tensioning completes, adjust described 50m double width upstroke movable framework and concede
Construct pier position；
(5) the first time stress system conversion work of described 50m double width upstroke movable framework is carried out；
(6) described 50m double width upstroke movable framework is moved integrally via to next construction pier position；
(7) the second time stress system conversion work of described 50m double width upstroke movable framework is carried out；
(8) after completing second time stress system conversion work, the second bridge is constructed.
The improvement of technique scheme is: step 1) in described 50m double width upstroke movable framework is carried out assembly
Process as follows, after the construction of described 50m double width upstroke movable framework assembly region pier shaft is completed, logical
Cross and set up interim trestle, interim steel pipe buttress and carry out the girder of described 50m double width upstroke movable framework, nose
Beam, the assembly of entablature, and front leg strut and middle supporting leg are installed；Prop up before again and after middle supporting leg installation, remove
Interim steel pipe buttress, carries out the lower drop in beam of described 50m double width upstroke movable framework, the installation of template, and same
Time Transtainer and material distributing machine are installed, assembled to complete described 50m double width upstroke movable framework.
The improvement of technique scheme is: step 4) the middle suspension rod removing described 50m double width upstroke movable framework,
The flange plate folding ram left and right sides of described 50m double width upstroke movable framework synchronous respectively, by described 50m
The flange plate template of double width upstroke movable framework folds and puts in place, by hydraulic jack by lower drop in beam and formwork for placing
Folding puts in place, completes the twice-folded construction of construction formwork, is synchronizing symmetrical pushing tow by the oil cylinder on entablature,
Drive lower drop in beam and template laterally-opening, get out of the way pier position of constructing.
Having the beneficial effect that of the second technical scheme of the present invention present invention employs specific construction method to adapt to 50m
The beam-making construction method of double width upstroke movable framework, leads owing to 50m double width upstroke movable framework width is excessive
Cause conventional method and can not use this mould bases, use precompressed test, and the side of secondary loading system transform for this
Formula carries out smooth transition to 50m double width upstroke movable framework.
Accompanying drawing explanation
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is the overall structure schematic diagram of the embodiment of the present invention.
Fig. 2 is the cross section structure schematic diagram of the main body construction mould of the embodiment of the present invention.
Fig. 3 is the cross section structure schematic diagram of the rear vertical shift of the embodiment of the present invention.
Fig. 4 is the structural representation of the middle dolly of the embodiment of the present invention.
Fig. 5 is the cross section structure schematic diagram under the first state of the main body construction mould of the embodiment of the present invention.
Fig. 6 is the cross section structure schematic diagram under the second state of the main body construction mould of the embodiment of the present invention.
Fig. 7 is the cross section structure schematic diagram under the third state of the main body construction mould of the embodiment of the present invention.
Fig. 8 is the cross section structure schematic diagram under the 4th state of the main body construction mould of the embodiment of the present invention.
Bridge beam body 1, main body construction mould 2, middle supporting leg 3, girder 4, front leg strut 5, the bridge of the nose 6, rear vertical shift 7,
Middle dolly 8, entablature 201, lower drop in beam 202, formwork for placing 203, segmentation beam 204, flange plate 205, extension
Beam slide the 206, first hydraulic jack the 207, second hydraulic jack 208, bridge piece the 210, the 3rd hydraulic jack
209, first vertical shift hydraulic jack the 801, first slide block the 802, first slide rail the 803, second traversing oil cylinder 804,
Second slide rail the 701, first traversing hydraulic jack 702.
Detailed description of the invention
Embodiment
One, the administrative region of a city railway in the implementation case Shi Mou city large-scale double width four-track line bridge in-situ beam fabrication construction party
Method.L circuit bridge total length 3366.30m, connects O south of the River bank and L island, wherein across O river section 2450m, 50m
Double width four line simple supported box beam is respectively positioned in 0 river.50m simple supported box beam width 10.64m, between left and right width flange plate 205
Away from only 2cm, pier spacing only 3.4m, tradition single width upstriker, downlink movable mould frame all cannot meet construction need
Want, therefore use the 50m double width upstroke movable framework construction method of the present embodiment, for current largest domestic
Double width upstroke movable framework construction method.The bridge beam body 1 of the present embodiment is the box beam of bridge.
A kind of 50m double width upstroke movable framework of the present embodiment, as shown in Figure 1, 2, including for from bottom
Launch to carry out bridge beam body 1 form removal or from bottom closure to pour the main body construction mould 2 of bridge beam body, to support
It is used for carrying main body construction mould 2 and driving main body construction mould 2 along bridge on the middle supporting leg 3 of bridge beam body 1
Girder 4 that beam beam body 1 vertically moves, it is supported on the front leg strut 5 of bridge beam body 1 for leading for girder 4
To the bridge of the nose 6 and being supported in pour bridge beam body 1 on for assisting girder 4 along bridge beam body 1 longitudinally
Move and laterally adjust along bridge beam body 1 the rear vertical shift 7 of song；Main body construction mould 2 hangs on girder 4, the bridge of the nose
6 ends that move ahead being loaded on girder 4, rear vertical shift 7 is loaded on the rear end of girder 4；Main body construction mould 2 includes along girder
The entablature 201 that the transverse horizontal of 4 is plugged on girder 4, the lower drop in beam 202 hung on entablature 201,
It is fixed on lower drop in beam 202 and for pouring the formwork for placing 203 of bridge beam body 1 and for controlling lower drop in beam
202 and exterior sheathing from bottom launch or Guan Bi controlling organization；Entablature 201 is provided with many and along girder 4
Longitudinally equidistantly arrangement, on each entablature 201, correspondence is hung with a pair time drop in beam 202, lower drop in beam 202 from
The beam sides of entablature 201 hangs on entablature 201 two ends；Formwork for placing 203 hangs on upper horizontal stroke by suspension rod
On beam 201, the bottom of lower drop in beam 202 is equipped with segmentation beam 204, and the flange plate 205 of formwork for placing 203 is corresponding
It is fixed on each segmentation beam 204；Controlling organization includes being located between entablature 201 and lower drop in beam 202 for carrying
Dynamic lower drop in beam 202 is along entablature 201 transverse shifting so that the segmentation beam 204 drop in beam cunning that separates from bottom and launch
Seat 206, for regulating drop in beam slide 206 along the first hydraulic jack 207 of the horizontal displacement of girder 4, for controlling
Segmentation beam 204 processed launches or the second hydraulic jack 208 of closing and between segmentation beam 204 separated part
The mutually bridge piece 210 of overlap joint；
Be connected with on lower drop in beam 202 that pair of parellel is arranged on lower drop in beam 202 for pouring double width bridge beam body 1
Formwork for placing 203；
When segmentation beam 204 is in closure state, the front end of flange plate 205 is supported by the 3rd hydraulic jack 209
And launch；
When segmentation beam 204 is in deployed condition, the front end of flange plate 205 is driven by the 3rd hydraulic jack 209
And shrink.
It is provided with for pushing the middle dolly 8 that girder 4 vertically moves bottom the girder 4 of the present embodiment, as shown in Figure 4,
The first vertical shift for being pushed by girder 4 it is provided with longitudinally toward front leg strut 5 direction between middle dolly 8 and girder 4
Hydraulic jack 801；First vertical shift hydraulic jack 801 is installed on middle dolly 8, the first vertical shift hydraulic jack 801
Outfan be slidably connected on the first slide rail 803 bottom girder 4 by the first slide block 802；First slide block
802 and first be provided with between slide rail 803 in the first vertical shift hydraulic jack 801 output procedure to the first slide block
802 and first slide rail 803 carry out the first keeper of being mutually located.
In traverse beam, also it is provided with the second traversing hydraulic jack 804 at the middle dolly 8 of the present embodiment, is used for adjusting
Construction curvature.
As it is shown on figure 3, the rear vertical shift 7 of the present embodiment and having poured is provided with between bridge beam body 1 for by rear vertical
Move 7 the second vertical shift hydraulic jacks longitudinally pushed along girder 4 towards middle supporting leg 3 direction；Second vertical shift hydraulic jack
It is connected to pour on the second slide rail 701 of bridge beam body 1 upper surface by the second slide block, the second vertical shift hydraulic pressure
The outfan of oil cylinder is connected on the bottom slide of rear vertical shift 7, and bottom slide is slidably connected to the second slide rail 701
On；Be provided with between second slide block and the second slide rail 701 in the second vertical shift hydraulic jack output procedure to
Two slide blocks and the second slide rail 701 carry out the second keeper being mutually located.
It is provided with between rear vertical shift 7 and the girder 4 of the present embodiment for regulating the girder 4 displacement along girder 4 radial direction
With adjust girder 4 towards the first traversing hydraulic jack 702.
The main body construction mould 2 of the present embodiment contains drop in beam 202 under 14 groups altogether.Left and right sides flange plate 205, under
Drop in beam 202, entablature 201 are respectively provided with 14 groups of hydraulic jacks, 84 groups altogether, meet mobile formwork template and open
Mould, traversing needs.
A kind of 50m of application double width upstroke movable framework of the present embodiment carries out the method for beam processed construction, construction step
Rapid as follows:
(1) after completing the pier construction in assembled region of 50m double width upstroke movable framework, current
Construction pier position carries out the assembled work of 50m double width upstroke movable framework；
(2) sandbag, water bag compound mode is used to carry out the precompressed work of 50m double width upstroke movable framework；
(3) the first bridge is carried out beam processed construction；Adjust after template center line, absolute altitude, move mould bases first across
Beam processed is constructed, and carries out medium and small car 8, rear vertical shift 7 system spelling on casting beams face；
(4) after the first bridge initial tensioning completes, adjust 50m double width upstroke movable framework and concede pier of constructing
Position；After bridge beam body 1 initial tensioning completes, mobile formwork rear support leg, middle supporting leg 3 oil cylinder shrink stamping die, remove
Template suspension rod, flange plate 205 template folding ram completes template and folds for the first time, and the second hydraulic jack 208 is complete
Becoming lower drop in beam 202 and template second time to fold, the traversing oil cylinder of entablature 201 is laterally-opening, completes mobile formwork
Die sinking, concedes pier position of constructing；
(5) the first time stress system conversion work of 50m double width upstroke movable framework is carried out；Mobile mould is installed
Vertical shift 7 vertical shift track after frame, rear support leg, middle supporting leg 3 oil cylinder continue to shrink, make mobile formwork entirety fall rear
On vertical shift 7, middle dolly 8, complete stress system conversion, adjusted by rear vertical shift 7, the traversing oil cylinder of middle dolly 8
Mobile formwork attitude, prepares mobile formwork vertical shift via；
(6) 50m double width upstroke movable framework is moved integrally via to next construction pier position；Bridge beam body
After 1 whole stretch-draw, mud jacking complete, rear vertical shift 7, middle dolly 8 pipe bending cylinder synchronous push, mobile formwork via is extremely
Next construction pier position；
(7) the second time stress system conversion work of 50m double width upstroke movable framework is carried out；Middle supporting leg 3, after
Support oil cylinder synchronization of jacking up, vertical shift 7, middle dolly 8 after mobile formwork disengaging, complete second time stress system conversion,
The traversing oil cylinder of entablature 201 shrinks, the second hydraulic jack 208 pushing tow, flange plate 205 template folding ram top
Push away, complete the construction of mobile formwork matched moulds, installation form suspension rod；
(8) after completing second time stress system conversion work, the second bridge is constructed；Rear support leg,
The synchronization of jacking up of middle supporting leg 3 is to designed elevation, and front leg strut 5 moves forward to next pier position, adjusts template center line, mark
The second bridge beam construction is carried out after height.
The step 1 of the present embodiment) in that 50m double width upstroke movable framework carries out the process of assembly is as follows, right
After the construction of 50m double width upstroke movable framework assembly region pier shaft completes, by setting up interim trestle, interim
Steel pipe buttress carries out the girder 4 of 50m double width upstroke movable framework, the bridge of the nose 6, the assembly of entablature 201, and
Front leg strut 5 and middle supporting leg 3 are installed；Prop up before again and after the installation of middle supporting leg 3, remove interim steel pipe buttress, enter
The lower drop in beam 202 of row 50m double width upstroke movable framework, the installation of template, and portable gate-type is installed simultaneously rises
Heavy-duty machine and material distributing machine, assembled to complete 50m double width upstroke movable framework.
The step 4 of the present embodiment) the middle suspension rod removing 50m double width upstroke movable framework, 50m double width upstriker
The flange plate 205 folding ram left and right sides of mobile formwork synchronous respectively, moves mould by 50m double width upstriker
Flange plate 205 template of frame folds and puts in place, lower drop in beam 202 and formwork for placing 203 is folded by hydraulic jack
Put in place, complete the twice-folded construction of construction formwork, synchronizing symmetrical pushing tow by the oil cylinder on entablature 201,
Drive lower drop in beam 202 and template laterally-opening, get out of the way pier position of constructing.
As viewed in figures 5-8, the first state is that construction mould is ready for watering to the main body construction mould 2 of the present embodiment
Building state during box beam, the second state is the state having prepared die sinking after main body construction mould 2 has poured, the 3rd
State is main body construction mould 2 die opening state, and the 4th state is the mould state excessively of main body construction mould 2.Above
The sectional view of each state diagram the most non-main body construction mould 2.
The present invention is not limited to above-described embodiment.The technical scheme that all employing equivalents are formed, all falls within this
The protection domain of bright requirement.
Claims (8)
1. a 50m double width upstroke movable framework, including for launching from bottom to carry out bridge beam body form removal or from bottom closure to pour the main body construction mould of bridge beam body, it is supported on the middle supporting leg of described bridge beam body for carrying described main body construction mould the girder driving described main body construction mould to vertically move along described bridge beam body, be supported on the front leg strut of described bridge beam body the bridge of the nose for carrying out guiding for described girder and being supported in pour bridge beam body on for assisting described girder to vertically move along described bridge beam body and laterally adjusting the rear vertical shift of song along described bridge beam body；Described main body construction mould hangs on described girder, and the described bridge of the nose is loaded on the end that moves ahead of described girder, and described rear vertical shift is loaded on the rear end of described girder；Described main body construction mould includes being plugged in the entablature on described girder, the lower drop in beam hanging on described entablature along the transverse horizontal of described girder, being fixed on described lower drop in beam and for pouring the formwork for placing of bridge beam body and launching from bottom or the controlling organization of Guan Bi for controlling described lower drop in beam；Described entablature is provided with many and the most equidistantly arranging along described girder, and on each entablature, correspondence is hung with lower drop in beam described in a pair, and described lower drop in beam hangs on described entablature two ends from the beam sides of described entablature；Described formwork for placing hangs on described entablature by suspension rod, it is characterised in that: the bottom of described lower drop in beam is equipped with segmentation beam, and the flange plate correspondence of described formwork for placing is fixed on each segmentation beam；Described controlling organization include being located between described entablature with described lower drop in beam for driving described lower drop in beam along described entablature transverse shifting so that described segmentation beam separate from bottom and launch drop in beam slide, for regulating the first hydraulic jack of the described drop in beam slide displacement horizontal along described girder, launching or the second hydraulic jack of Guan Bi and the bridge piece of mutual overlap joint between described segmentation beam separated part for controlling described segmentation beam；
The formwork for placing of the bridge beam body for pouring double width that pair of parellel is arranged on described lower drop in beam it is connected with on described lower drop in beam；
When described segmentation beam is in closure state, the front end of described flange plate is supported by the 3rd hydraulic jack and launches；
When described segmentation beam is in deployed condition, the front end of described flange plate is driven by the 3rd hydraulic jack and shrinks.
50m double width upstroke movable framework the most according to claim 1, it is characterized in that: be provided with bottom described girder for pushing the middle dolly that girder vertically moves, between described middle dolly and described girder, be provided with the first vertical shift hydraulic jack for being pushed longitudinally toward described front leg strut direction by described girder；Described first vertical shift hydraulic jack is installed on described middle dolly, and the outfan of described first vertical shift hydraulic jack is slidably connected on the first slide rail bottom described girder by the first slide block；The first keeper for described first slide block and described first slide rail being mutually located in described first vertical shift hydraulic jack output procedure it is provided with between described first slide block and described first slide rail.
50m double width upstroke movable framework the most according to claim 1, it is characterised in that: described rear vertical shift and having poured is provided with the second vertical shift hydraulic jack for described rear vertical shift longitudinally being pushed towards described middle supporting leg direction along described girder between bridge beam body；Described second vertical shift hydraulic jack by the second slide block be connected to described in poured on the second slide rail of bridge beam body upper surface, the outfan of described second vertical shift hydraulic jack is connected on the bottom slide of described rear vertical shift, and described bottom slide is slidably connected on described second slide rail；The second keeper for described second slide block and described second slide rail being mutually located in described second vertical shift hydraulic jack output procedure it is provided with between described second slide block and described second slide rail.
50m double width upstroke movable framework the most according to claim 1, it is characterised in that: be provided with between described rear vertical shift and described girder for regulate described girder along the displacement radially of described girder with adjust described girder towards the first traversing hydraulic jack.
50m double width upstroke movable framework the most according to claim 1, it is characterised in that: described main body construction mould contains drop in beam under 14 groups altogether.
6. apply the method that 50m double width upstroke movable framework carries out beam processed construction for one kind, it is characterised in that construction procedure is as follows:
(1) after completing the pier construction in assembled region of described 50m double width upstroke movable framework, the assembled work of described 50m double width upstroke movable framework is carried out in current construction pier position；
(2) sandbag, water bag compound mode is used to carry out the precompressed work of described 50m double width upstroke movable framework；
(3) the first bridge is carried out beam processed construction；
(4) after described first bridge initial tensioning completes, adjust described 50m double width upstroke movable framework and concede pier position of constructing；
(5) the first time stress system conversion work of described 50m double width upstroke movable framework is carried out；
(6) described 50m double width upstroke movable framework is moved integrally via to next construction pier position；
(7) the second time stress system conversion work of described 50m double width upstroke movable framework is carried out；
(8) after completing second time stress system conversion work, the second bridge is constructed.
Application 50m double width upstroke movable framework the most according to claim 6 carries out the method for beam processed construction, it is characterized in that: the process that described 50m double width upstroke movable framework carries out in step 1) assembly is as follows, after the construction of described 50m double width upstroke movable framework assembly region pier shaft is completed, carry out the girder of described 50m double width upstroke movable framework, the bridge of the nose, the assembly of entablature by setting up interim trestle, interim steel pipe buttress, and front leg strut and middle supporting leg are installed；Prop up before again and after middle supporting leg installation, remove interim steel pipe buttress, carry out the lower drop in beam of described 50m double width upstroke movable framework, the installation of template, and Transtainer and material distributing machine are installed simultaneously, assembled to complete described 50m double width upstroke movable framework.
Application 50m double width upstroke movable framework the most according to claim 6 carries out the method for beam processed construction, it is characterized in that: step 4) is removed the suspension rod of described 50m double width upstroke movable framework, the flange plate folding ram left and right sides of described 50m double width upstroke movable framework synchronous respectively, the flange plate template of described 50m double width upstroke movable framework is folded and puts in place, by hydraulic jack, lower drop in beam and formwork for placing folding are put in place, complete the twice-folded construction of construction formwork, symmetrical pushing tow is being synchronized by the oil cylinder on entablature, drive lower drop in beam and template laterally-opening, get out of the way pier position of constructing.
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