CN105970822B - 50m double-width upward moving type movable formwork and corresponding beam manufacturing construction method thereof - Google Patents
50m double-width upward moving type movable formwork and corresponding beam manufacturing construction method thereof Download PDFInfo
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- CN105970822B CN105970822B CN201610412054.8A CN201610412054A CN105970822B CN 105970822 B CN105970822 B CN 105970822B CN 201610412054 A CN201610412054 A CN 201610412054A CN 105970822 B CN105970822 B CN 105970822B
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- 238000010276 construction Methods 0.000 title claims abstract description 79
- 238000009415 formwork Methods 0.000 title claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 title abstract description 4
- 230000011218 segmentation Effects 0.000 claims description 20
- 210000001364 upper extremity Anatomy 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 13
- 238000006243 chemical reaction Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 3
- 230000008602 contraction Effects 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 6
- 230000006872 improvement Effects 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000009416 shuttering Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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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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- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a 50m double-width upward moving type movable formwork and a corresponding beam manufacturing construction method thereof, belonging to the technical field of methods or equipment special for erecting or assembling bridges. The lower hanging beam of the die carrier is provided with a segmented beam, and a flange plate of a pouring template is fixedly connected to the segmented beam; a pouring template is fixedly connected to the lower hanging beam; when the segmented beam is in a closed state, the front end of the flange plate is unfolded; the contraction of the flange plates when the segmented beam is in the deployed state. The method comprises the steps of (1) carrying out die carrier assembly; (2) pre-pressing; (3) carrying out beam manufacturing construction on the first span beam; (4) the constructed pier position is made way; (5) carrying out primary stress system conversion; (6) moving the via; (7) carrying out secondary stress system conversion; (8) and constructing the second span beam. The invention constructs the double-width bridge deck with the interval in an integral construction mode, can effectively solve the problem caused by the undersized interval of the bridge deck, constructs in the integral construction mode, improves the construction efficiency and accelerates the construction process.
Description
Technical field
The present invention relates to a kind of 50m double width upstroke movable framework and its corresponding beam-making construction methods, belong to and are exclusively used in
Set up or assemble the method or equipment technical field of bridge.
Background technique
When above deeper mountain valley, above the water ferry with steep slope, in highway or railway or environmental protection
When overlying regions, the bridge construction on-site concrete casting for carrying out entire bridge span will appear many problems.It is built for bridge
The removable form frame system (MSS) built is a kind of advanced bridge cast-in-place construction method, provides supporting surface for beam body construction
And working face, avoid bracket and set up, construction characteristic be not by construction site, pier shaft height limitation, being capable of cross-domain river, mountain
The obstacles such as paddy；Without basement process, bracket is set up by cross, using construction bearing platform, pier shaft are as supporting point, voluntarily before entirety
It moves at next hole beam bridge location and continues to construct, speed of application is fast；Mobile formwork is heavy construction equipment, is not necessarily to weight in work progress
It removes, set up again, it is construction safety, reliable.It can provide the advantage better than traditional mould bases, it is lesser dry including being caused to environment
It disturbs, provides the working region more concentrated to superstructure assembling, the safety of worker is improved while improved architectural environment
Deng.
MSS across the support construction between two bridge piers by constituting, from bridge pier support or pendent form.Internal template (core
Form) it is foldable and can be run on guide track system, to be repositioned onto next bridge span.The outer template of the system
It can sufficiently open to become outer template during traveling and pass through around bridge pier.After traveling, outer template is closed again,
And after being set to and being correctly aligned, it can start to place stiffener.
MSS can be divided into two types, including downstriker (underlane) or be called suspension type (underslung) and on
Line (overlane) is called support formula (overhead).The MSS of downstriker has two parallel girders of support shuttering.Uplink
The MSS of formula has one or two girder, and template is suspended in midair from girder.
It selects which kind of type to depend on field condition using, such as height limitation, bridge floor type (such as single cable plane, it is double
Rope face, double T) and bridge pier height.
Self-propelled moveable formwork（SL-MSS）For handling on the water and compared with the bridge pier supporting support on high pier
(bracket) relevant problem.The system can forward in the case where being not necessarily to any independent crane and install bridge pier
Supporting support.SL-MSS has been successfully used to the building of global multinomial large bridge project, and due to its cost and battalion
Fortune efficiency will be widely welcomed later.
Although MSS has the advantages that many, current MSS also has the existing issue added.It is longer including needing
Construction period, cannot transmit simultaneously entire steel reinforcement cage or it is primary transmit whole steel reinforcement cages, needed in superstructure several
Barrier closure (block-outs), needs the hangs muscle by superstructure deck come support shuttering, needs for relocating
The more labour of the complexity and consuming of other equipment necessary to support portion and its operation.
In addition, left and right width beam body is applied respectively when MSS is only able to satisfy the construction of single width beam body or larger left and right width beam body spacing
Work.When left and right width beam body spacing very little, traditional single width upstriker, downlink movable mould frame are unable to satisfy mobile formwork and open
The needs of mould via hole, it is therefore necessary to innovation research be carried out to traditional Construction Through Form on Traveler method, to meet the practical need in engineering
It wants.
Summary of the invention
The technical problem to be solved by the present invention is in view of the shortcomings of the prior art, propose that a kind of width amplitude reaches the cross of 50m
The double width upstroke movable framework and its corresponding beam-making construction method of bridge beam or so width beam body, the mobile formwork can satisfy
Bridge building operations under small spacing were avoided due to left and right width beam body spacing too small caused the problems such as can not being opened via hole.
In order to solve the above-mentioned technical problem the first technical solution that the present invention proposes is：A kind of 50m double width upstriker shifting
Dynamic model frame, including for being unfolded to apply to carry out bridge beam body demoulding or from bottom closure with the main body for pouring bridge beam body from bottom
Tool and mould is supported on the middle supporting leg of the bridge beam body for carrying the main body construction mold and driving the main body construction
Mold along the girder that the bridge beam body vertically moves, be supported on the front leg strut of the bridge beam body for for the girder into
The bridge of the nose and being supported in of row guiding has poured the upper for assisting the girder longitudinally to move along the bridge beam body of bridge beam body
Rear vertical shift dynamic and that song is laterally adjusted along the bridge beam body；The main body construction mold is hung on the girder, the bridge of the nose
Forward end loaded on the girder, the rear vertical shift are loaded on the rear end of the girder；The main body construction mold includes along described
The upper beam of girder being transversely and horizontally plugged on the girder, hang on lower drop in beam on the upper beam, be fixed in it is described
On lower drop in beam and for pour bridge beam body formwork for placing and for control the lower drop in beam from bottom be unfolded or be closed
Control mechanism；The upper beam is provided with more and corresponds in longitudinal equidistant arrangement of the girder, each upper beam
It is hung with a pair of lower drop in beam, the lower drop in beam hangs on the upper beam both ends from the beam sides of the upper beam；It is described
Formwork for placing is hung on the upper beam by sunpender, and the bottom of the lower drop in beam is equipped with segmentation beam, the formwork for placing
Flange plate correspondence be fixed on each segmentation beam；The control mechanism includes being set to use between the upper beam and the lower drop in beam
In drive the lower drop in beam along the upper beam transverse shifting so that the segmentation beam be separated and unfolded from bottom drop in beam slide,
For adjusting the first hydraulic cylinder of displacement of the drop in beam slide along the girder transverse direction, for controlling the segmentation beam expansion
Or closure the second hydraulic cylinder and for overlapped bridge piece mutual between the segmentation beam separated part；
Be connected on the lower drop in beam pair of parellel be set on the lower drop in beam for pouring double width bridge beam body
Formwork for placing；
When the segmentation beam in the closure state, the front end of the flange plate is supported and is unfolded by third hydraulic cylinder；
When the segmentation beam is in unfolded state, the front end of the flange plate is driven and is shunk by third hydraulic cylinder.
The improvement of above-mentioned technical proposal is：The girder bottom is equipped with the middle trolley for pushing girder longitudinal movement, institute
State the first vertical shift being equipped between trolley and the girder for pushing the girder longitudinally toward the front leg strut direction
Hydraulic cylinder；The first vertical shift hydraulic cylinder is installed on the middle trolley, the output end of the first vertical shift hydraulic cylinder
It is slidably connected to by the first sliding block on the first sliding rail of the girder bottom；Between first sliding block and first sliding rail
Equipped with mutual for being carried out during the first vertical shift hydraulic cylinder output to first sliding block and first sliding rail
First locating piece of positioning.
The improvement of above-mentioned technical proposal is：It is described after vertical shift and poured between bridge beam body be equipped with for will it is described after indulge
It moves along longitudinal the second vertical shift hydraulic cylinder towards the middle supporting leg direction push of the girder；The second vertical shift hydraulic cylinder is logical
Cross the second sliding block be connected to it is described poured on the second sliding rail of bridge beam body upper surface, the second vertical shift hydraulic cylinder it is defeated
Outlet is connected on the bottom slide of the rear vertical shift, and the bottom slide is slidably connected on second sliding rail；Described
It is equipped between two sliding blocks and second sliding rail for sliding to described second during the second vertical shift hydraulic cylinder output
The second locating piece that block and second sliding rail are mutually located.
The improvement of above-mentioned technical proposal is：It is equipped between vertical shift and the girder for adjusting the girder along institute after described
The displacement of girder radial direction is stated with the adjust the direction of the girder first traversing hydraulic cylinder.
The improvement of above-mentioned technical proposal is：The main body construction mold contains drop in beam under 14 groups altogether.
The first technical solution of the invention has the beneficial effect that：
1）50m double width upstroke movable framework of the invention by segmentation beam, flange plate and with these components cooperation
Oil cylinder, allows the whole vertical shift via hole of 50m double width upstroke movable framework.
2）The traversing oil cylinder pushing 50m double width upstroke movable framework transverse shifting matched with rear vertical shift and middle trolley,
Realize that the midline position of 50m double width upstroke movable framework is adjustable, it is ensured that the linear energy of 50m double width upstroke movable framework beam
It is enough linear consistent with design.
3）The design of vertical shift track after mobile formwork, rear fulcrum, central bearing point, front fulcrum longitudinal slope are consistent always when making vertical shift,
Avoid girder, bridge of the nose concentration of local stress, it is ensured that Construction Through Form on Traveler safety.
4）50m double width upstroke movable framework stamping die of the invention, template are folded, are opened, mould bases entirety vertical shift via hole, close
Mould jacking is automatically controlled by hydraulic system, synchronous working, and constructing operation is simple, convenient, fast, safe and reliable.
5）Rear vertical shift of the invention, middle trolley are designed with traverse beam and traversing oil cylinder, mobile formwork can with transverse shifting,
Posture is adjusted, keeps mobile formwork axis and design consistent always.
6）After mobile formwork stamping die of the invention, certainly by 3 points of rear vertical shift, middle trolley, front leg strut receiving mobile formworks
Weight, rear vertical shift, middle trolley are respectively designed with vertical shift pipe bending cylinder, mobile formwork entirety via hole described in synchronous push；Vertical shift is set afterwards
In respect of vertical shift track, the rear vertical shift and mobile formwork move ahead along track, and middle trolley, front leg strut are fixed, the mobile mould
Frame trolley, slideway straight skidding on front leg strut in move ahead；The bridge beam body that mobile formwork can satisfy left and right sides double width is same
When beam construct, and whole stamping die, vertical shift via hole.
In order to solve the above-mentioned technical problem second of technical solution that the present invention proposes is a kind of application 50m double width upstriker
The method that mobile formwork carries out beam construction processed, the construction procedure of this method are as follows：
（1）After completing the pier construction in assembled region of the 50m double width upstroke movable framework, applied in current
Work pier position carries out the assembled work of the 50m double width upstroke movable framework；
（2）The precompressed work of the 50m double width upstroke movable framework is carried out using sandbag, water bag combination；
（3）Beam construction processed is carried out to the first bridge；
（4）After the completion of the first bridge initial tensioning, adjusts the 50m double width upstroke movable framework and concede and constructed
Pier position；
（5）Carry out the first time stress system conversion work of the 50m double width upstroke movable framework；
（6）The 50m double width upstroke movable framework is moved integrally into via hole to next construction pier position；
（7) second of stress system conversion work of the 50m double width upstroke movable framework is carried out；
（8）After completing second of stress system conversion work, construct to the second bridge.
The improvement of above-mentioned technical proposal is：Step 1）In assembled mistake is carried out to the 50m double width upstroke movable framework
Journey is as follows, after the completion of the construction to 50m double width upstroke movable framework assembly region pier shaft, by setting up interim branch stack
Bridge, interim steel pipe buttress carry out the assembly of the girder, the bridge of the nose, upper beam of the 50m double width upstroke movable framework, and before installation
Supporting leg and middle supporting leg；After branch and middle supporting leg are installed before again, interim steel pipe buttress is removed, the 50m double width upstriker is carried out
The installation of the lower drop in beam, template of mobile formwork, and Transtainer and material distributing machine are installed simultaneously, described in completing
50m double width upstroke movable framework is assembled.
The improvement of above-mentioned technical proposal is：Step 4）The middle sunpender for removing the 50m double width upstroke movable framework, it is described
The flange plate folding ram left and right sides of 50m double width upstroke movable framework distinguishes synchronous, and the 50m double width upstriker is moved
The flange plate template of dynamic model frame folds in place, folds in place lower drop in beam and formwork for placing by hydraulic cylinder, completes construction mould
The secondary folding of plate is constructed, and is synchronizing symmetrical pushing tow by the oil cylinder on upper beam, is driven lower drop in beam and template laterally-opening, is allowed
Open pier position of having constructed.
Second of technical solution of the present invention has the beneficial effect that：It is bis- to adapt to 50m that present invention employs specific construction methods
The beam-making construction method of width upstroke movable framework leads to conventional method since 50m double width upstroke movable framework width is excessive
The mould bases cannot be used, 50m double width upstriker is moved using the mode of precompressed test and secondary loading system transform thus
Dynamic model frame carries out smooth transition.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings.
Fig. 1 is the overall structure diagram of the embodiment of the present invention.
Fig. 2 is the cross section structure schematic diagram of the main body construction mold 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 schematic diagram of the middle trolley 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 mold 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 mold 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 mold 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 mold of the embodiment of the present invention.
Bridge beam body 1, main body construction mold 2, middle supporting leg 3, girder 4, front leg strut 5, the bridge of the nose 6, rear vertical shift 7, middle trolley 8,
Upper beam 201, lower drop in beam 202, formwork for placing 203, segmentation beam 204, flange plate 205, drop in beam slide 206, the first hydraulic cylinder
207, the second hydraulic cylinder 208, bridge piece 210, third hydraulic cylinder 209, the first vertical shift hydraulic cylinder 801, the first sliding block
802, the first sliding rail 803, the second sliding rail 701, the first traversing hydraulic cylinder 702
Specific embodiment
Embodiment
The implementation case is one, the administrative region of a city railway large-scale double width four-track line bridge in-situ beam fabrication construction method in certain city.L
Circuit bridge overall length 3366.30m, the connection Jiangnan O bank and the island L, wherein the river across O section 2450m, four line simple supported box beam of 50m double width are equal
In 0 river.The wide 10.64m of 50m simple supported box beam, 205 spacing of left and right width flange plate only 2cm, pier spacing only 3.4m, traditional single width
Upstriker, downlink movable mould frame are unable to satisfy construction needs, therefore using the mobile mould of the 50m double width upstriker of the present embodiment
Frame construction method is the double width upstroke movable framework construction method of current largest domestic.The bridge beam body 1 of the present embodiment is bridge
The box beam of beam.
A kind of 50m double width upstroke movable framework of the present embodiment, as shown in Figure 1, 2, including for from bottom be unfolded with
Carry out 1 demoulding of bridge beam body or from bottom closure to pour the main body construction mold 2 of bridge beam body, be supported in bridge beam body 1
On middle supporting leg 3 for arrying main body construction mould 2 and drive main body construction mold 2 to vertically move along bridge beam body 1 girder 4,
It is supported in the bridge of the nose 6 on the front leg strut 5 of bridge beam body 1 being used to be oriented to for girder 4 and is supported in and poured bridge beam body 1
It is upper for assisting girder 4 to vertically move along bridge beam body 1 and laterally adjusting bent rear vertical shift 7 along bridge beam body 1；Main body construction mould
Tool 2 is hung on girder 4, and the bridge of the nose 6 is loaded on the forward end of girder 4, and rear vertical shift 7 is loaded on the rear end of girder 4；Main body construction mold 2
Including along girder 4 the upper beam 201 being transversely and horizontally plugged on girder 4, hang on lower drop in beam 202 on upper beam 201, solid
It is connected 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
The control mechanism for being unfolded from bottom or being closed；Upper beam 201 is provided with more and along longitudinal equidistant arrangement of girder 4, each
Correspondence is hung with drop in beam 202 under a pair on root upper beam 201, and lower drop in beam 202 hangs on upper beam from the beam sides of upper beam 201
201 both ends；Formwork for placing 203 is hung on upper beam 201 by sunpender, and the bottom of lower drop in beam 202 is equipped with segmentation beam 204,
The correspondence of flange plate 205 of formwork for placing 203 is fixed on each segmentation beam 204；Control mechanism includes being set to upper beam 201 and lower extension
For driving lower drop in beam 202 along 201 transverse shifting of upper beam so that segmentation beam 204 was separated and unfolded from bottom between beam 202
Drop in beam slide 206 divides for adjusting drop in beam slide 206 along the first hydraulic cylinder 207 of the lateral displacement of girder 4, for controlling
Section beam 204 expansion or closure the second hydraulic cylinder 208 and for be segmented between 204 separated part of beam mutually overlapped overlap joint
Part 210；
Be connected on lower drop in beam 202 pair of parellel be set on lower drop in beam 202 for pouring pouring for double width bridge beam body 1
Building mould 203；
When being segmented beam 204 in the closure state, the front end of flange plate 205 is supported and is unfolded by third hydraulic cylinder 209；
When segmentation beam 204 is in unfolded state, the front end of flange plate 205 is driven and is shunk by third hydraulic cylinder 209.
4 bottom of girder of the present embodiment is equipped with the middle trolley 8 for pushing the longitudinal movement of girder 4, as shown in figure 4, medium and small
The first vertical shift hydraulic cylinder 801 for pushing girder 4 longitudinally toward 5 direction of front leg strut is equipped between vehicle 8 and girder 4；The
One vertical shift hydraulic cylinder 801 is installed on middle trolley 8, and the output end of the first vertical shift hydraulic cylinder 801 is sliding by the first sliding block 802
It is dynamic to be connected on the first sliding rail 803 of 4 bottom of girder；It is equipped between first sliding block 802 and the first sliding rail 803 for vertical first
The first locating piece that liquid relief compressing cylinder 801 is mutually located the first sliding block 802 and the first sliding rail 803 during exporting.
The second traversing hydraulic cylinder 804 is also provided at the middle trolley 8 of the present embodiment in traverse beam, for adjusting construction
Curvature.
As shown in figure 3, the rear vertical shift 7 of the present embodiment and having poured be equipped between bridge beam body 1 for by rear vertical shift 7 along master
Longitudinal the second vertical shift hydraulic cylinder pushed towards middle 3 direction of supporting leg of beam 4；Second vertical shift hydraulic cylinder is connected to by the second sliding block
It has poured on the second sliding rail 701 of 1 upper surface of bridge beam body, the output end of the second vertical shift hydraulic cylinder is connected to rear vertical shift 7
On the slide of bottom, bottom slide is slidably connected on the second sliding rail 701；It is equipped with and is used between second sliding block and the second sliding rail 701
The second locating piece that the second sliding block and the second sliding rail 701 are mutually located during the output of the second vertical shift hydraulic cylinder.
It is equipped between the rear vertical shift 7 and girder 4 of the present embodiment for adjusting girder 4 along the radial displacement of girder 4 to adjust
The traversing hydraulic cylinder 702 of the first of the direction of girder 4.
The main body construction mold 2 of the present embodiment is altogether containing drop in beam 202 under 14 groups.Left and right sides flange plate 205, lower drop in beam 202,
14 groups of hydraulic cylinders are respectively set in upper beam 201, amount to 84 groups, meet the die sinking of mobile formwork template, traversing needs.
A kind of method carrying out beam construction processed using 50m double width upstroke movable framework of the present embodiment, construction procedure is such as
Under：
（1）After completing the pier construction in assembled region of 50m double width upstroke movable framework, in current construction pier
Position carries out the assembled work of 50m double width upstroke movable framework；
（2）The precompressed work of 50m double width upstroke movable framework is carried out using sandbag, water bag combination；
（3）Beam construction processed is carried out to the first bridge；After adjusting template middle line, absolute altitude, carries out mobile formwork head and applied across beam processed
Work, and medium and small vehicle 8,7 system spelling of rear vertical shift are carried out on casting beams face；
（4）After the completion of the first bridge initial tensioning, adjustment 50m double width upstroke movable framework concedes pier position of having constructed；Bridge
After the completion of 1 initial tensioning of beam beam body, mobile formwork rear support leg, 3 oil cylinder of middle supporting leg shrink stamping die, form removal sunpender, flange plate 205
Template folding ram completes template the first fold, and the second hydraulic cylinder 208 completes lower drop in beam 202 and template second fold,
The traversing oil cylinder of upper beam 201 is laterally-opening, completes mobile formwork die sinking, concedes pier position of having constructed；
（5）Carry out the first time stress system conversion work of 50m double width upstroke movable framework；It is indulged after mobile formwork is installed
7 vertical shift tracks are moved, rear support leg, 3 oil cylinder of middle supporting leg continue to shrink, and mobile formwork is made integrally to fall in rear vertical shift 7, on middle trolley 8, complete
It is converted at stress system, mobile formwork posture is adjusted by rear vertical shift 7, the traversing oil cylinder of middle trolley 8, prepares mobile formwork vertical shift
Hole；
（6）50m double width upstroke movable framework is moved integrally into via hole to next construction pier position；Bridge beam body 1 is opened eventually
It draws, after the completion of mud jacking, rear vertical shift 7,8 pipe bending cylinder synchronous push of middle trolley, mobile formwork via hole to next construction pier position；
（7) second of stress system conversion work of 50m double width upstroke movable framework is carried out；Middle supporting leg 3, rear support leg oil
Second of stress system conversion, the traversing oil of upper beam 201 are completed in cylinder synchronization of jacking up, vertical shift 7, middle trolley 8 after mobile formwork is detached from
Cylinder is shunk, 208 pushing tow of the second hydraulic cylinder, 205 template folding ram pushing tow of flange plate, completes mobile formwork molding construction, peace
Decking sunpender；
（8）After completing second of stress system conversion work, construct to the second bridge；Rear support leg, middle supporting leg 3
To designed elevation, front leg strut 5 moves forward to next pier position for synchronization of jacking up, carries out the second bridge system after adjustment template middle line, absolute altitude
Beam construction.
The step 1 of the present embodiment）In to carry out assembled process to 50m double width upstroke movable framework as follows, bis- to 50m
After the completion of the construction of width upstroke movable framework assembly region pier shaft, by setting up interim branch trestle, interim steel pipe buttress is carried out
The assembly of the girder 4, the bridge of the nose 6, upper beam 201 of 50m double width upstroke movable framework, and front leg strut 5 and middle supporting leg 3 are installed；Again
After preceding branch and middle supporting leg 3 are installed, interim steel pipe buttress is removed, carries out the lower drop in beam of 50m double width upstroke movable framework
202, the installation of template, and Transtainer and material distributing machine are installed simultaneously, to complete the mobile mould of 50m double width upstriker
Frame is assembled.
The step 4 of the present embodiment）The middle sunpender for removing 50m double width upstroke movable framework, the mobile mould of 50m double width upstriker
The 205 folding ram left and right sides of flange plate of frame distinguishes synchronous, by 205 mould of flange plate of 50m double width upstroke movable framework
Plate folds in place, folds in place lower drop in beam 202 and formwork for placing 203 by hydraulic cylinder, completes the secondary folding of construction formwork
Folded construction is synchronizing symmetrical pushing tow by the oil cylinder on upper beam 201, drives lower drop in beam 202 and template laterally-opening, gets out of the way
Construction pier position.
As viewed in figures 5-8, first state is that construction mould is ready for pouring box beam to the main body construction mold 2 of the present embodiment
When state, prepare the state of die sinking after the completion of construction mould 2 pours based on the second state, the third state is main body construction mould
Have 2 die opening states, construction mould 2 crosses mould state based on the 4th state.The non-main body construction mold 2 of above each state diagram
Sectional view.
The present invention is not limited to the above embodiment.All technical solutions formed using equivalent replacement, are all fallen within the present invention and wanted
The protection scope asked.
Claims (5)
1. a kind of 50m double width upstroke movable framework, including for being unfolded from bottom to carry out bridge beam body demoulding or from bottom
Closure is to pour the main body construction mold of bridge beam body, be supported on the middle supporting leg of the bridge beam body for carrying the main body
Construction mould and the girder for driving the main body construction mold to vertically move along the bridge beam body are supported in the bridge beam body
Front leg strut on the bridge of the nose for being oriented to for the girder and be supported in and poured the upper of bridge beam body and be used to assist institute
Girder is stated to vertically move along the bridge beam body and laterally adjust bent rear vertical shift along the bridge beam body；The main body construction mold
It hangs on the girder, the bridge of the nose is loaded on the forward end of the girder, and the rear vertical shift is loaded on the rear end of the girder；Institute
State main body construction mold include along the girder the upper beam being transversely and horizontally plugged on the girder, hang on the upper cross
Lower drop in beam on beam, be fixed on the lower drop in beam and the formwork for placing for pouring bridge beam body and for control it is described under
The control mechanism that drop in beam is unfolded or is closed from bottom；The upper beam is provided with more and along longitudinal equidistant row of the girder
It arranges, corresponding on each upper beam to be hung with a pair of lower drop in beam, the lower drop in beam is hung from the beam sides of the upper beam
In the upper beam both ends；The formwork for placing is hung on the upper beam by sunpender, it is characterised in that：The lower drop in beam
Bottom be equipped with segmentation beam, the flange plate correspondence of the formwork for placing is fixed on each segmentation beam；The control mechanism includes
For driving the lower drop in beam along the upper beam transverse shifting so that described between the upper beam and the lower drop in beam
Drop in beam slide that segmentation beam is separated and unfolded from bottom, for adjusting displacement of the drop in beam slide along the girder transverse direction
One hydraulic cylinder, the second hydraulic cylinder for controlling the segmentation beam expansion or closure and for the segmentation beam separation unit
Mutual overlapped bridge piece between position；
Pouring for the bridge beam body for pouring double width that pair of parellel is set on the lower drop in beam is connected on the lower drop in beam
Building mould；
When the segmentation beam in the closure state, the front end of the flange plate is supported and is unfolded by third hydraulic cylinder；
When the segmentation beam is in unfolded state, the front end of the flange plate is driven and is shunk by third hydraulic cylinder.
2. 50m double width upstroke movable framework according to claim 1, it is characterised in that：The girder bottom, which is equipped with, to be used
In push girder longitudinal movement middle trolley, between the middle trolley and the girder be equipped with for by the girder longitudinally toward
First vertical shift hydraulic cylinder of the front leg strut direction push；The first vertical shift hydraulic cylinder is installed on the middle trolley,
The output end of the first vertical shift hydraulic cylinder is slidably connected on the first sliding rail of the girder bottom by the first sliding block；Institute
State be equipped between the first sliding block and first sliding rail for during the first vertical shift hydraulic cylinder output to described the
The first locating piece that one sliding block and first sliding rail are mutually located.
3. 50m double width upstroke movable framework according to claim 1, it is characterised in that：It is described after vertical shift with poured
The second vertical shift for pushing the rear vertical shift towards the middle supporting leg direction along the girder longitudinal direction is equipped between bridge beam body
Hydraulic cylinder；The second vertical shift hydraulic cylinder is connected to by the second sliding block and described has poured the second of bridge beam body upper surface
On sliding rail, the output end of the second vertical shift hydraulic cylinder is connected on the bottom slide of the rear vertical shift, the bottom slide
It is slidably connected on second sliding rail；It is equipped between second sliding block and second sliding rail in second vertical shift
The second locating piece that second sliding block and second sliding rail are mutually located during hydraulic cylinder output.
4. 50m double width upstroke movable framework according to claim 1, it is characterised in that：Vertical shift and the master after described
It is equipped between beam traversing with adjust the direction of the girder first along the displacement of the girder radial direction for adjusting the girder
Hydraulic cylinder.
5. 50m double width upstroke movable framework according to claim 1, it is characterised in that：The main body construction mold is total
Contain drop in beam under 14 groups.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610412054.8A CN105970822B (en) | 2016-06-03 | 2016-06-03 | 50m double-width upward moving type movable formwork and corresponding beam manufacturing construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610412054.8A CN105970822B (en) | 2016-06-03 | 2016-06-03 | 50m double-width upward moving type movable formwork and corresponding beam manufacturing construction method thereof |
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| Publication Number | Publication Date |
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| CN105970822A CN105970822A (en) | 2016-09-28 |
| CN105970822B true CN105970822B (en) | 2018-11-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110117933B (en) * | 2018-02-06 | 2021-07-13 | 广东省基础工程集团有限公司 | Cast-in-situ movable formwork for pier top of segmental beam |
| CN108442255B (en) * | 2018-05-23 | 2024-04-19 | 郑州新大方重工科技有限公司 | Movable formwork bridge fabrication machine and construction method for cast-in-situ bridge fabrication |
| CN110761134A (en) * | 2018-07-25 | 2020-02-07 | 浙江德盛铁路器材股份有限公司 | Guard rail machining method |
| CN114657884B (en) * | 2022-04-07 | 2024-01-23 | 广西路桥工程集团有限公司 | Construction method of descending movable formwork for bridge abutment assembly and sectional propulsion |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3527470A1 (en) * | 1985-07-31 | 1987-02-12 | Dyckerhoff & Widmann Ag | Device for manufacturing in sections a multi-span bridge supporting framework made of reinforced concrete or prestressed concrete |
| DE29913244U1 (en) * | 1999-07-29 | 2000-04-27 | Hermann Kirchner GmbH & Co. KG Hoch- und Ingenieurbau, 36251 Bad Hersfeld | Manufacturing device for the erection of prestressed concrete bridge superstructures using the cycle method |
| CN2742026Y (en) * | 2004-11-20 | 2005-11-23 | 秦皇岛市北戴河通联路桥机械有限公司 | One gap type top guide beam moving mould frame bridge making machine |
| CN201713764U (en) * | 2010-04-29 | 2011-01-19 | 郑州市华中建机有限公司 | Movable formwork apparatus |
| CN104131515A (en) * | 2014-08-20 | 2014-11-05 | 中铁十九局集团第二工程有限公司 | Method for constructing cast-in-place box beam by means of movable formwork |
| CN204401473U (en) * | 2015-01-15 | 2015-06-17 | 中铁四局集团第二工程有限公司 | Upstroke movable framework steel bar overall binding lifting construction device |
| CN104695335B (en) * | 2015-01-15 | 2016-09-14 | 中铁四局集团第二工程有限公司 | Upstroke movable framework steel bar overall binding lifting construction engineering method and constructing device |
| CN105155423A (en) * | 2015-09-15 | 2015-12-16 | 中建五局土木工程有限公司 | Upward moving type movable formwork for continuous box girder construction |
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