CN105386414B - Lower-guide type main-truss-free hanging basket - Google Patents
Lower-guide type main-truss-free hanging basket Download PDFInfo
- Publication number
- CN105386414B CN105386414B CN201510850488.1A CN201510850488A CN105386414B CN 105386414 B CN105386414 B CN 105386414B CN 201510850488 A CN201510850488 A CN 201510850488A CN 105386414 B CN105386414 B CN 105386414B
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- China
- Prior art keywords
- tripod
- hanging basket
- nose girder
- suspender belt
- walking
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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
- E01D21/10—Cantilevered erection
Abstract
The invention discloses a lower-guide type main-truss-free hanging basket. The lower-guide type main-truss-free hanging basket is characterized by comprising a triangular support supporting mechanism, a bottom basket mechanism, side mould mechanisms and a connecting mechanism, wherein the triangular support supporting mechanism is arranged on the upper part of a top plate of a completed box beam; the bottom basket mechanism is arranged on the lower part of the bottom plate of the completed box beam; the side mould mechanisms are arranged at left and right sides of the completed box beam; and the connecting mechanism is used for connecting and suspending the bottom basket mechanism and the side mould mechanisms below the triangular support supporting mechanism. The lower-guide type main-truss-free hanging basket disclosed by the invention has the advantages of being free of a main truss and small in size, realizing a light-weight goal (by improving the form of the hanging basket) of an integral design of the hanging basket by virtue of a miniature design of a stress unit, so that the structures, above bridge floor, of the hanging basket are greatly reduced, thereby greatly reducing weight of the hanging basket and saving a great deal of material (steel) investment.
Description
Technical field
The present invention relates to a kind of equipment for bridge construction, particularly one kind is without main truss bridge fine strain of millet body cantilever pouring construction hanging basket.
Background technology
Hanging Basket is bridge beam body cantilever pouring special equipment, in modern prestressed concrete continuous rigid-framed bridge and cable-stayed bridge
In etc. the bridge construction for needing cantilever pouring beam body, more using Hanging Basket cantilever pouring.
Traditional Hanging Basket generally has following shortcoming：First, each part composition is relatively complicated, and structure stress is mutual
Association；Second, Hanging Basket weight is typically heavier, particularly main couple, because box beam block weight will be born, typically all more stupid
Weight, than typically, less than 0.35～0.5, Hanging Basket versatility is bad, fixed once design with construction block weight for Hanging Basket overall weight
Type, many large bearing capacities can not typically change, and are adapted to how heavy weight beam section and can only typically select big, cause to waste serious, while
Also result in construction inconvenience（So-called low load with strong power）；3rd, the quantity of usual web determines main truss quantity, and the more main trusses of chamber are more
It is many, and main truss is usually rhombus or triangle, the general body of this Hanging Basket is larger, many with girder steel amount, and weight is big, cost
It is high；4th, when wide cut bridge is run into, as bridge baseplate width is big, bottom basket is generally wider, general 20 meters or so, causes down
Longeron quantity is more, and as this kind of Hanging Basket is typically overall walking manner, rear sill is usually designed to truss and could meet
Walking is required, so sill weight is larger after generally, typically at 4 tons or so, such installation has certain difficulty, and two increase
Hanging Basket weight；5th, it is overall to walk.Bottom basket（The entirety that sill and lower longeron and end template are formed in front and back）Suspension centre and side afterwards
Mould is together hung on outer nose girder, and bottom basket front end is hung on the front entablature of main truss upper end, during walking, and all components of Hanging Basket one are gone together
Walk, this mode has certain drawback：There is torsional deformation in the necessary synchronous walking of all components, otherwise Hanging Basket, it is often more important that
If before certain is slightly blocked not, passing through then and suddenly stop, a violent impulse force forward will be formed, be easy to forward
Topple and cause the accident, and weight of walking is very big, general walking is very slow, and safety is very poor, and security risk is very big during walking, easily sends out
The security incident integrally collapsed during raw walking.Simultaneously because following reason is generally difficult to smoothly to walk：1st, it is special as previously mentioned
It is that expanded letter main truss cradle is more, synchronous walking is difficult control；2nd, each part（Including main truss, bottom basket, outer nose girder etc.）Quantity is more, weight
Greatly, Hanging Basket center of gravity is forward, anchors safety coefficient afterwards and is difficult control, and easily rear anchor failure, causes Hanging Basket to topple.
The content of the invention
The purpose of the present invention is, for above-mentioned the deficiencies in the prior art, there is provided a kind of downward type without main truss Hanging Basket, the Hanging Basket
The needs of cantilever pouring beam body can not only be met, and greatly reduce Hanging Basket deadweight, Hanging Basket gross mass is maximum with constructed
Beam section mass ratio can reach less than 0.2.
Downward type of the present invention is as follows without the technical scheme adopted by main truss Hanging Basket：
Downward type of the present invention without main truss Hanging Basket, including tripod supporting mechanism, Di Lan mechanisms, side form mechanism and connection machine
Structure, the tripod supporting mechanism are arranged on the top board top for completing box beam, and Di Lan mechanisms are arranged on the bottom for completing box beam
Plate bottom, side form mechanism are arranged on the left and right sides for completing box beam, and Di Lan mechanisms and the connection of side form mechanism are hung by bindiny mechanism
Hang over below tripod supporting mechanism.
Used as the preferred version of the present invention, the tripod supporting mechanism includes that several walking tripods are poured with several
Tripod is built, several walking tripods pour tripod with several and are disposed on the top board top for completing box beam；Institute
Stating walking tripod includes two triangular framings being set up in parallel, and between two triangular framing front portions is provided with stull,
Rotating shaft is provided between two triangular framing top.
Used as the preferred version of the present invention, the Di Lan mechanisms include the first hanging portion, several sills, under several
Longeron and several lower nose girders, several lower longerons are longitudinally uniformly arranged on the base plate bottom for having completed box beam, several lower horizontal strokes
Beam is laterally homogeneous to be arranged on the longeron body top collectively constituted by several lower longerons, and several lower nose girders are longitudinally uniformly arranged on
Lower longeron is fixed on from lower longeron rear portion and is completed by the cross girder bottom collectively constituted by several sills, the first hanging portion
Box beam bottom, lower longeron front portion are connected with tripod is poured by bindiny mechanism, and lower nose girder is by bindiny mechanism and walking three
Corner bracket is connected.
Used as the preferred version of the present invention, the side form mechanism includes the second hanging portion, external mold framed bent, side form, anchoring beam
With outer nose girder, the quantity of external mold framed bent is two groups, and two groups of external mold framed bents are separately positioned on the left and right sides for completing box beam, lead outward
Pass through the rear end of external mold framed bent and outer nose girder to be anchored to by the second hanging portion complete on box beam wing plate in the middle part of beam, outer nose girder
Middle part is connected to by bindiny mechanism and is poured on tripod, to be anchored and pass through external mold framed bent in the middle part of beam and anchor the rear and front end anchor of beam
It is affixed to walking tripod and has been completed on the wing plate of box beam.
Used as the preferred version of the present invention, the bindiny mechanism includes bottom coupling assembly and suspender belt, bottom coupling assembly
Be arranged on lower longeron and outer nose girder, suspender belt be set at the walking tripod on same vertical and bottom coupling assembly or
Pour between tripod and bottom coupling assembly.
Used as the preferred version of the present invention, the bottom coupling assembly includes mainboard, is provided with bar hole in mainboard side,
Mainboard opposite side is provided with manhole, and bar hole front part sides are provided with riser, is fixedly installed horizontal stroke in two riser roots
Plate, is provided with the via passed through for suspender belt in the middle part of transverse slat.
Installation method of the downward type of the present invention without main truss Hanging Basket is as follows：
First, on the top board for completing box beam, it is reserved for the hole that tripod supporting mechanism is fixed installation；
Then, tripod supporting mechanism is fixedly mounted, walking tripod and tripod will be poured is hung to top board reserving hole
On position, tripod will be walked with steel plate and pour tripod regulation level, in walking tripod and the rear end for pouring tripod
Anchor shoulder pole girder in pressure, the tapered beam regulation level on the top board bottom pad for complete box beam, anchoring shoulder pole girder and tapered beam it
Between put on fining twisted steel, and carry out deflation with jack and tighten nut, so as to walking tripod and tripod rear portion will be poured
Being fastened on the top board for completing box beam, gag lever post being worn in walking tripod and the bottom for pouring tripod, gag lever post is penetrated
To in top board reserving hole, it is fastened on the top board for completing box beam so as to tripod will be walked and pour tripod front portion, prevents
Only Hanging Basket assembling reinforcement and moved forward by the horizontal component of suspender belt during casting concrete；Three section of suspender belt point is installed,
Walking tripod and pour, one end of second section suspender belt is connected with first segment suspender belt
Connect；
Then, lower longeron and lower nose girder are installed：Before lower longeron lifting, bottom connection group is installed in the front end of lower longeron
Part, and bearing pin is put between bottom coupling assembly and lower longeron, bottom coupling assembly is freely rotated, then suspender belt is installed
Section of three suspender belt, one end of Section of three suspender belt is fixed in the coupling assembly of bottom, the other end and second section of Section of three suspender belt
Suspender belt is connected, and lower longeron is sling by the suspender belt for assembling；Before lower nose girder lifting, bottom is installed in the front end of lower nose girder
Coupling assembly, and bearing pin is put between bottom coupling assembly and lower nose girder, the free rotation person of bottom coupling assembly is enable, then
Suspender belt is installed, makes the other end of suspender belt be connected with walking tripod, lower longeron and the installation of lower nose girder according to completing box beam from
Both sides install to the middle or middle monolateral order to both sides；
In lower longeron installation process lower longeron top start install sill, then install remaining lower longeron and under
Nose girder, is further continued for installing sill, then adjusts sill position, and after sill alignment, vertically and horizontally using between sill connects
Plate is attached blending bolt and tightens；
Next step, installs the end template of box beam to be cast, and end template is lifted on sill successively, carries out between end template
Spot welding；
Next step, installs external mold framed bent and side form：Assembling external mold framed bent, side form are arranged on external mold framed bent relative inner, outward
It is joined with bolts between mould framed bent and side form integral；
Finally, outer nose girder and anchoring beam are installed：Outer nose girder and anchoring beam are together penetrated into external mold framed bent, integral hoisting is in place
Afterwards, outer nose girder is anchored, outer nose girder and anchoring beam are identical with preparation before the lifting of lower longeron and anchoring process.
Traveling method of the downward type of the present invention without main truss Hanging Basket is as follows：
Hanging Basket Di Lan mechanisms walk：
After Hanging Basket Cast-in-Situ Segment prestressed stretch-draw is finished, walking tripod is moved on to Hanging Basket Cast-in-Situ Segment front end and anchored, with hanging
Band is connected to lower nose girder front end suspension centre, suspension centre after lower nose girder is anchored to and complete box beam base plate front end；
Then suspender belt all solutions before and after lower longeron are removed, lower longeron, sill and end template is dropped on lower nose girder, is adjusted
Lower nose girder to lower longeron, sill and the end template of section is up to the standard, and wherein descends longeron to be hung on sill, is provided with sill
There is the roller for being connected to lower nose girder, then lower longeron, sill and end template are pulled in Hanging Basket fragment position to be poured by roller；
In lower longeron, sill and end template moving process, tripod will be poured and move on to Hanging Basket Cast-in-Situ Segment front end, then be led to
The suspender belt length being connected with lower nose girder is overregulated, lower longeron, sill and end template is pressed close to box beam base plate, then
To being completed on box beam base plate, lower longeron front end is anchored to by suspender belt and is poured on tripod the lower longeron rear end of anchoring；
Finally adjust suspender belt length, adjust end template absolute altitude, then assembling reinforcement is anchored before and after removing lower nose girder, under lead
Beam during assembling reinforcement is moved on to by roller and complete box beam and Hanging Basket Cast-in-Situ Segment junction, carried out new-old concrete and pour
Renovate, before to be poured section of prestressed stretch-draw of Hanging Basket is finished, concrete is renovated and finished, and it is cast-in-place that lower nose girder rear end is anchored to Hanging Basket
In fragment position, lower nose girder front end is fixed on walking tripod by suspender belt, prepares the walking of Hanging Basket next step；
Hanging Basket side form mechanism walks：
When Hanging Basket Cast-in-Situ Segment concret block is poured, outer nose girder is anchored to through external mold framed bent rear end and complete in box beam,
Outer nose girder middle-end is connected to by suspender belt and is poured on tripod, and wherein external mold framed bent is bolted integral, side with side form
Mould is interfixed by pull bar with the internal model of box beam chamber；
After concret block tensioning is finished, side form wouldn't be released with interior intermode pull bar, and now side form is fixed to concrete
On block, anchoring before and after pouring tripod is released, and is poured tripod and is moved to Hanging Basket Cast-in-Situ Segment front end specified location, after movement
The rear end for pouring tripod is anchored with shoulder pole girder, front end suspender belt is connected to outer nose girder front end suspension centre；
Then side form and interior intermode pull bar is released, external mold framed bent and side form is moved forward to by roller on outer nose girder
At Hanging Basket fragment position to be poured, now, anchoring beam front and back end is anchored on walking tripod and wing plate；
Then external mold framed bent and side form is held, then the anchoring of outer nose girder front and back end is released, and is moved forward, it is then outer to lead
The rear end of beam is anchored on the cast-in-place section concrete of Hanging Basket by the second hanging portion, and in the middle of outer nose girder, suspension centre is anchored to and pours tripod
On, now the outer reinforcing bar of colligation box beam wing plate, now anchors beam and has completed task, dropped.
Advantage of the downward type of the present invention without main truss Hanging Basket is, without main truss, small volume, by stress unit Miniaturization Design,
Realize that the lightness target Hanging Basket of Hanging Basket global design, by improving Hanging Basket Types of Cradles, greatly reduces Hanging Basket in bridge floor
Above section structure, so as to the weight of Hanging Basket is greatly reduced, saves substantial amounts of material（Steel）Input.
Description of the drawings
Fig. 1 is front view of the downward type of the present invention without main truss Hanging Basket.
Fig. 2 is the A-A sectional views of the Fig. 1 of downward type of the present invention without main truss Hanging Basket.
Fig. 3 is the front view of walking tripod of the downward type of the present invention without main truss Hanging Basket.
Fig. 4 is the right view of walking tripod of the downward type of the present invention without main truss Hanging Basket.
Fig. 5 is the front view of bottom coupling assembly of the downward type of the present invention without main truss Hanging Basket.
Fig. 6 is the right view of bottom coupling assembly of the downward type of the present invention without main truss Hanging Basket.
Specific embodiment
As shown in drawings, downward type of the present invention is without main truss Hanging Basket, including tripod supporting mechanism, Di Lan mechanisms, side form machine
Structure and bindiny mechanism, the tripod supporting mechanism are arranged on the top board top for completing box beam, and Di Lan mechanisms are arranged on complete
Into the base plate bottom of box beam, side form mechanism is arranged on the left and right sides for completing box beam, and bindiny mechanism is by Di Lan mechanisms and side form
Mechanism's connection hanging is below tripod supporting mechanism.
By by the invention provide that including the knot of tripod supporting mechanism, Di Lan mechanisms, side form mechanism and bindiny mechanism
Configuration formula, tripod supporting mechanism are used for supporting the Di Lan mechanisms below tripod supporting mechanism and side by bindiny mechanism
Mold mechanism, Di Lan mechanisms and side form mechanism can carry out walking movement with split type, and tripod supporting mechanism can be with Di Lan mechanisms
Walking movement with side form mechanism carries out multiple step format and removes fixation.
Tripod supporting mechanism includes that several walking tripods 1 pour tripod 2 with several, several walking triangles
Frame 1 pours tripod 2 with several and is disposed on the top board top for completing box beam.By tripod supporting mechanism is arranged
Into the version for pouring tripod with several including several walking tripods, walking tripod 1 is for Di Lan mechanisms row
Walk movement to be supported, play a supportive role when tripod 2 being poured for pouring into a mould concrete box girder.The walking tripod
1 includes two triangular framing 1-1 being set up in parallel, and is provided with stull 1-2, at two between two triangular framing front portions
Rotating shaft 1-3 is provided between triangular framing top.The structure for pouring tripod 2 is essentially identical with the structure of walking tripod 1,
Its difference is to pour tripod to be not provided with stull, while on the two build, the build for pouring tripod is big
In the build of walking tripod.
Di Lan mechanisms include the first hanging portion 3, several sills 4, several lower longerons 5 and several lower nose girders 6, if
Dry 5 longitudinal direction of lower longeron is uniformly arranged on the base plate bottom for completing box beam, if several sills 4 it is laterally homogeneous be arranged on by
The longeron body top that dry lower longeron is collectively constituted, several lower 6 longitudinal directions of nose girder are uniformly arranged on common by several sills
Lower longeron is fixed on from 5 rear portion of lower longeron and complete box beam bottom by the cross girder bottom of composition, the first hanging portion 3, lower longeron 5
Front portion is connected with tripod 2 is poured by bindiny mechanism, and lower nose girder 6 is connected with walking tripod 1 by bindiny mechanism.Hang
The effect of extension：The lower longeron of a suspentions, outer nose girder, anchoring beam, when b prevents Hanging Basket assembling reinforcement and casting concrete, the effect of suspender belt
Then move in above-mentioned girder steel horizontal component.
By by Di Lan mechanisms be arranged to include hanging portion, several sills, several lower longerons and several under lead
The version of beam, the first hanging portion 3 and bindiny mechanism are respectively from the rear and front end of lower longeron 5 and lower nose girder 6 by 5 He of lower longeron
Lower nose girder 6 is fixed on below tripod supporting mechanism, while after being poured, sill 4 and lower longeron nose girder 6 below 5 is
Track carries out walking movement, moves at next Strip casting box beam.
Side form mechanism includes the second hanging portion 7, external mold framed bent 8, side form 9, anchoring beam 10 and outer nose girder 11, external mold framed bent 8
Quantity be two groups, two groups of external mold framed bents 8 are separately positioned on the left and right sides for completing box beam, in the middle part of outer nose girder 11 pass through external mold
The rear end of framed bent 8 and outer nose girder 11 is anchored to by the second hanging portion 7 and complete on box beam wing plate, and the middle part of outer nose girder 11 passes through
Bindiny mechanism is connected to and pours on tripod 2, and the rear and front end for passing through external mold framed bent 8 in the middle part of anchoring beam 10 and anchoring beam anchors to
Walking tripod 1 and completed on the wing plate of box beam.
By side form mechanism is arranged to include the structure shape of hanging portion, external mold framed bent, side form, anchoring beam and outer nose girder
Formula, anchoring beam 10 passes through the second hanging portion 7 and external mold framed bent 8 is fixed on and complete below box beam wing plate by bindiny mechanism, side form 9
It is arranged between external mold framed bent 8 and box beam sidepiece, after this section of box beam concrete is poured, nose girder 11 beyond external mold framed bent 8
Walking movement is carried out for track, is moved at next Strip casting box beam.
Bindiny mechanism includes bottom coupling assembly 12 and suspender belt 13, and bottom coupling assembly 12 is arranged on lower longeron 5 and leads outward
On beam 11, walking tripod that suspender belt 13 is set on same vertical 1 and bottom coupling assembly 12 or tripod 2 is poured
Between bottom coupling assembly 12.By being arranged to include the version of bottom coupling assembly and suspender belt by bindiny mechanism, hang
With 13 top through at the rotating shaft 1-3 on walking tripod 1 or cast tripod 2, and anchored with nut, under suspender belt 13
Portion is connected with lower longeron 5, outer nose girder 11 and lower nose girder 6 by bottom coupling assembly 12.Bottom coupling assembly 12 includes mainboard
12-1, is provided with bar hole 12-2 in mainboard 12-1 sides, is provided with manhole 12-3 in mainboard 12-1 opposite sides, in bar hole
12-2 front part sides are provided with riser 12-4, are fixedly installed transverse slat 12-5 in two riser 12-4 roots, in transverse slat 12-5
Portion is provided with the via passed through for suspender belt.
Installation method of the downward type of the present invention without main truss Hanging Basket is as follows：
First, on the top board for completing box beam, it is reserved for the hole that tripod supporting mechanism is fixed installation；
Then, tripod supporting mechanism is fixedly mounted, walking tripod 1 and tripod 2 will be poured is hung to top board preformed hole
On the position of hole, tripod 1 will be walked with steel plate and pour 2 regulation level of tripod, and walked tripod 1 and pouring tripod 2
Rear side pressure on anchor shoulder pole girder, the tapered beam regulation level on the top board bottom pad for complete box beam, anchoring shoulder pole girder and wedge
Fining twisted steel is put between ellbeam, and carries out deflation with jack and tighten nut, so as to walking tripod 1 and pouring triangle
2 rear portion of frame is fastened on the top board for completing box beam, is worn gag lever post in walking tripod 1 and the bottom for pouring tripod 2, is limited
Position bar is penetrated in top board reserving hole, complete box beam so as to walk tripod 1 and pour 2 front portion of tripod to be fastened to
On top board, prevent from being moved forward by the horizontal component of suspender belt when Hanging Basket assembling reinforcement and casting concrete；
Secondly, 13 point of three section of suspender belt is installed, in walking tripod 1 and is poured connection at the rotating shaft 1-3 of tripod 2
One end of first segment suspender belt 13-1, second section suspender belt 13-2 is connected with first segment suspender belt 13-1；
Then, lower longeron 5 and lower nose girder 6 are installed：Before lower longeron 5 is lifted, bottom connection is installed in the front end of lower longeron 5
Component 12, and bearing pin is put between bottom coupling assembly 12 and lower longeron 5, bottom coupling assembly 12 is freely rotated, so
Section three, suspender belt 13-3 of suspender belt is installed afterwards, one end of Section of three suspender belt 13-3 is fixed in bottom coupling assembly 12, Section three
The other end of suspender belt 13-3 is connected with second section suspender belt 13-2, and then lower longeron 5 is sling by the suspender belt 13 by assembling；Under
Before nose girder 6 is lifted, install bottom coupling assembly 12 in the front end of lower nose girder 6, and bottom coupling assembly 12 and lower nose girder 6 it
Between put on bearing pin, bottom coupling assembly 12 is freely rotated, then suspender belt 13 be installed, make the other end of suspender belt 13 with walking three
Corner bracket 1 is connected, and lower longeron 5 and lower nose girder 6 are installed according to from completing the both sides of box beam to middle or centre to both sides
Monolateral order is installed；
In 5 installation process of lower longeron start sill 4 is installed on lower longeron top, then remaining lower longeron 5 is installed
With lower nose girder 6, it is further continued for sill 4 is installed, then adjusts 4 position of sill, after the alignment of sill 4 between sill in length and breadth
Tighten to blending bolt is attached with connecting plate；
Next step, installs the end template 14 of box beam to be cast, and end template 14 is lifted on sill 4 successively, end template it
Between carry out spot welding；
Next step, installs external mold framed bent 8 and side form 9：Assembling external mold framed bent 8, it is relatively interior that side form 9 is arranged on external mold framed bent 8
Side, is joined with bolts between external mold framed bent 8 and side form 9 integral；
Finally, outer nose girder 11 and anchoring beam 10 are installed：Outer nose girder 11 and anchoring beam 10 are together penetrated external mold framed bent 8 and lifted
Anchor outer nose girder 11 in place afterwards, outer nose girder and anchoring beam are identical with preparation before the lifting of lower longeron and anchoring process.
Traveling method of the downward type of the present invention without main truss Hanging Basket is as follows：
A, the walking of Hanging Basket Di Lan mechanisms：
After Hanging Basket Cast-in-Situ Segment prestressed stretch-draw is finished, walking tripod 1 is moved on to Hanging Basket Cast-in-Situ Segment front end and anchored, with hanging
Band 13 is connected to 6 front end suspension centre of lower nose girder, suspension centre after lower nose girder 6 is anchored to and complete box beam base plate front end；
Then 13 all solutions of suspender belt before and after lower longeron 5 are removed, lower longeron 5, sill 4 and end template 14 is dropped and is led under
On beam 6, adjust lower nose girder 6 to lower longeron 5, sill 4 and end template 14 and be up to the standard, wherein descend longeron 5 to be hung in sill 4
On, the roller for being connected to lower nose girder is provided with sill 4, then by roller by lower longeron 5, sill 4 and end template 14
It is pulled in Hanging Basket fragment position to be poured；
In lower longeron 5,14 moving process of sill 4 and end template, tripod will be poured and move on to Hanging Basket Cast-in-Situ Segment front end,
Again by adjusting 13 length of suspender belt being connected with lower nose girder 6, lower longeron 5, sill 4 and end template 14 are pressed close to
Beam base plate, then anchors lower 5 rear end of longeron to being completed on box beam base plate, and lower 5 front end of longeron is anchored to by suspender belt 13 and poured
On tripod 2；
13 length of suspender belt is finally adjusted, 14 absolute altitude of end template is adjusted, then assembling reinforcement is anchored before and after removing lower nose girder 6；
Lower nose girder 6 during assembling reinforcement is moved on to by roller and complete box beam and Hanging Basket Cast-in-Situ Segment junction, carry out new-old concrete
Renovation is poured, before to be poured section of prestressed stretch-draw of Hanging Basket is finished, concrete is renovated and finished, and 6 rear end of lower nose girder is anchored to extension
In the cast-in-place fragment position of basket, lower 6 front end of nose girder is fixed on walking tripod 1 by suspender belt 13, prepares the walking of Hanging Basket next step；
B, the walking of Hanging Basket side form mechanism：
When Hanging Basket Cast-in-Situ Segment concret block is poured, outer nose girder 11 is anchored to through 8 rear end of external mold framed bent and complete box beam
On, 11 middle-end of outer nose girder is connected to by suspender belt 13 and is poured on tripod 2, and wherein external mold framed bent 8 is bolted with side form 9
Integral, side form 9 is interfixed by pull bar with the internal model of box beam chamber；
After concret block tensioning is finished, side form 9 wouldn't be released with interior intermode pull bar, and now side form 9 is fixed to coagulation
On soil block body, anchoring before and after pouring tripod 2 is released, and is poured tripod 2 and is moved to Hanging Basket Cast-in-Situ Segment front end specified location, is moved
The rear end for pouring tripod 2 is anchored with shoulder pole girder after dynamic, front end suspender belt 13 is connected to 11 front end suspension centre of outer nose girder；
Then side form 9 and interior intermode pull bar are released, by external mold framed bent 8 and side form 9 by roller on outer nose girder 11 forward
Move at Hanging Basket fragment position to be poured, now, anchoring beam front and back end is anchored on walking tripod 1 and wing plate；
Then external mold framed bent 8 and side form 9 is held, then the anchoring of 11 front and back end of outer nose girder is released, and is moved forward, then
The rear end of outer nose girder 11 is anchored on the cast-in-place section concrete of Hanging Basket, and 11 middle suspension centre of outer nose girder is anchored to and poured on tripod 2, this
When can now anchor beam and completed task, dropped with the outer reinforcing bar of colligation box beam wing plate.
Advantage of the downward type of the present invention without main truss Hanging Basket be：
1st, without main truss, using element type tripod.This tripod has following features：A small volumes, lightweight, 2-3 people
Move, and do not need the walking track of traditional Hanging Basket, so in the case of no bridge vertical tension, it is not necessary to pre- for track
Bury fining twisted steel or stay embedded hole；B according to the parameter setting tripod quantity such as bridge width and beam section weight, and be able to can be installed
In any position of top board, so in the case where certain safety coefficient is met, tripod performance can be fully used, so
The advantage of formation is that tripod can be used for different bridges, and the suitability is higher, it is not necessary to as traditional Hanging Basket, according to first bridge
After design, can only low load with strong power just can be with, cause to waste；
2nd, underplate bottom structure is end template, sill, lower longeron successively, and this structure sill distributes beam section weight first
Amount, sill is beam structure, and traditional Hanging Basket substructure is end template, lower longeron, sill successively, longeron under this structure
Distribute beam section weight first, lower longeron is freely supported structure.Beam structure is that material can be filled than the benefit of simple beam structure
Divide and utilize, it is not necessary to the bigger steel of model, more save, and mitigate weight；
3rd, independent ambulation.Bottom basket independently can be walked with side form, be more prone to operation and safety, and bottom basket can substep
Walking；
4th, the nose girder in the case where bottom is arranged in the key, the i.e. so-called walking track of tradition Hanging Basket, but non-that track of this track.This track
Be arranged at sill bottom, by tumbler connect, when Hanging Basket walk, after track suspension centre anchoring with beam section base plate, front suspension centre and
Tripod connects, and then before and after the basket of whole bottom, suspension centre is all unloaded, and is fallen within and is being wanted pour body position, then
Before and after lower longeron, suspension centre is all anchored.Rail effect is completed now, at this moment suspension centre can be unloaded before and after track, under track is fallen within tumbler
On the roller of two, face, now track be seated on roller can before and after walk, at this moment feasible being gone to newly pour block rear portion and carry out base plate
Renovate, so can carry out base plate renovation in assembling reinforcement, it is good latter with renovation without bridge.Feature：Under a, nose girder is the bottom of at
Can arrange multiple in the key, bottom basket together integrally can be walked, it is also possible to which upper partial block substep is walked；B is more as bottom basket is arranged
Individual lower nose girder, compares sill two ends stress after the basket of traditional Hanging Basket bottom, during walking, safer；
5th, can cross-operation.After concret block is poured to be finished, it is not necessary to only wait prestressing force as traditional Hanging Basket
Pull Bi Houcai to move forward track, prepare main truss and walk forward, after concret block is poured and finished, before prestressed stretch-draw,
Lower nose girder can be stretched forward, and after young concrete tensioning is finished, bottom basket can be walked in place, before then descending longeron forward
After anchor, cut the travel time of traditional Hanging Basket；
It is lightweight, based on above feature it is clear that almost traditional Hanging Basket weight half.
Claims (7)
1. a kind of downward type is without main truss Hanging Basket, it is characterised in that：Including tripod supporting mechanism, Di Lan mechanisms, side form mechanism and
Bindiny mechanism, the tripod supporting mechanism are arranged on the top board top for completing box beam, and Di Lan mechanisms are arranged on
The base plate bottom of beam, side form mechanism are arranged on the left and right sides for completing box beam, and bindiny mechanism is by Di Lan mechanisms and side form mechanism
Connection hanging is below tripod supporting mechanism；Wherein, installation method is as follows：
First, on the top board for completing box beam, it is reserved for the hole that tripod supporting mechanism is fixed installation；
Then, tripod supporting mechanism, tripod of walking are fixedly mounted（1）With pour tripod（2）It is hung to top board preformed hole
On the position of hole, will be walked tripod with steel plate（1）With pour tripod（2）Regulation level, in walking tripod（1）With pour three
Corner bracket（2）Rear side pressure on anchor shoulder pole girder, the tapered beam regulation level on the top board bottom pad for complete box beam, anchor shoulder pole
Fining twisted steel is put between beam and tapered beam, and carries out deflation with jack and tighten nut, so as to tripod of walking（1）With
Pour tripod（2）Rear portion is fastened on the top board for completing box beam, in walking tripod（1）With pour tripod（2）Under
Portion wears gag lever post, and gag lever post is penetrated in top board reserving hole, so as to tripod of walking（1）With pour tripod（2）Before
Portion is fastened on the top board for completing box beam, when preventing Hanging Basket assembling reinforcement and casting concrete by suspender belt horizontal component and
Reach；
Secondly, by suspender belt（13）Three sections are divided to be installed, in walking tripod（1）With pour tripod（2）Rotating shaft（1-3）Place
Connection first segment suspender belt（13-1）, second section suspender belt（13-2）One end and first segment suspender belt（13-1）It is connected；
Then, lower longeron is installed（5）With lower nose girder（6）：Lower longeron（5）Before lifting, in lower longeron（5）Front end install bottom
Coupling assembly（12）, and in bottom coupling assembly（12）With lower longeron（5）Between put on bearing pin, make bottom coupling assembly（12）Energy
Freely rotate, then Section of three suspender belt of suspender belt be installed（13-3）, Section of three suspender belt（13-3）One end be fixed on bottom connection
Component（12）On, Section of three suspender belt（13-3）The other end and second section suspender belt（13-2）It is connected, then by assembling
Suspender belt（13）By lower longeron（5）Sling；Lower nose girder（6）Before lifting, in lower nose girder（6）Front end install bottom coupling assembly
（12）, and in bottom coupling assembly（12）With lower nose girder（6）Between put on bearing pin, make bottom coupling assembly（12）Freely can turn
It is dynamic, then suspender belt is installed（13）, make suspender belt（13）The other end with walking tripod（1）It is connected, lower longeron（5）With lower nose girder
（6）Install according to installing from completing the monolateral order of the both sides of box beam to middle or centre to both sides；
In lower longeron（5）Start sill is installed on lower longeron top in installation process（4）, then remaining lower longeron is installed
（5）With lower nose girder（6）, it is further continued for sill is installed（4）, then adjust sill（4）Position, sill（4）Lower horizontal stroke after alignment
Being vertically and horizontally attached blending bolt with connecting plate and tighten between beam；
Next step, installs the end template of box beam to be cast（14）, end template（14）Sill is lifted into successively（4）On, end template
Between carry out spot welding；
Next step, installs external mold framed bent（8）And side form（9）：Assembling external mold framed bent（8）, side form（9）It is arranged on external mold framed bent（8）
Relative inner, external mold framed bent（8）With side form（9）Between be joined with bolts it is integral；
Finally, outer nose girder is installed（11）With anchoring beam（10）：By outer nose girder（11）With anchoring beam（10）External mold framed bent is penetrated together
（8）Lifting anchors outer nose girder in place afterwards（11）.
2. downward type according to claim 1 is without main truss Hanging Basket, it is characterised in that：If the tripod supporting mechanism includes
Dry walking tripod（1）Tripod is poured with several（2）, several walking tripods（1）Tripod is poured with several
（2）It is disposed on the top board top for completing box beam；The walking tripod（1）Including two triangle frames being set up in parallel
Frame（1-1）, stull is provided between two triangular framing front portions（1-2）, arrange between two triangular framing top
There is rotating shaft（1-3）.
3. downward type according to claim 1 is without main truss Hanging Basket, it is characterised in that：The Di Lan mechanisms include the first hanging
Portion（3）, several sills（4）, several lower longerons（5）With several lower nose girders（6）, several lower longerons（5）Longitudinal direction is
It is even to be arranged on the base plate bottom for completing box beam, several sills（4）Laterally homogeneous being arranged on descends longeron common by several
The longeron body top of composition, several lower nose girders（6）Longitudinal direction is uniformly arranged on the cross girder collectively constituted by several sills
Bottom, the first hanging portion（3）From lower longeron（5）Lower longeron is fixed on and complete box beam bottom by rear portion, lower longeron（5）It is anterior logical
Cross bindiny mechanism and pour tripod（2）It is connected, lower nose girder（6）By bindiny mechanism and walking tripod（1）It is connected.
4. downward type according to claim 1 is without main truss Hanging Basket, it is characterised in that：The side form mechanism includes the second hanging
Portion（7）, external mold framed bent（8）, side form（9）, anchoring beam（10）With outer nose girder（11）, external mold framed bent（8）Quantity be two groups, two groups
External mold framed bent（8）It is separately positioned on the left and right sides for completing box beam, outer nose girder（11）Middle part passes through external mold framed bent（8）And lead outward
Beam（11）Rear end pass through the second hanging portion（7）Anchor to, outer nose girder（11）Middle part by connection
Mechanism is connected to and pours tripod（2）On, anchor beam（10）Middle part passes through external mold framed bent（8）And anchor the rear and front end anchoring of beam
To walking tripod（1）Completed on the wing plate of box beam.
5. downward type according to claim 3 is without main truss Hanging Basket, it is characterised in that：The bindiny mechanism includes that bottom connects
Component（12）And suspender belt（13）, bottom coupling assembly（12）It is arranged on lower longeron（5）With outer nose girder（11）On, suspender belt（13）Arrange
In the walking tripod on same vertical（1）With bottom coupling assembly（12）Or pour tripod（2）It is connected with bottom
Component（12）Between.
6. downward type according to claim 5 is without main truss Hanging Basket, it is characterised in that：The bottom coupling assembly（12）Including
Mainboard（12-1）, in mainboard（12-1）Side is provided with bar hole（12-2）, in mainboard（12-1）Opposite side is provided with manhole
（12-3）, in bar hole（12-2）Front part sides are provided with riser（12-4）, in two risers（12-4）Root is fixedly installed
Transverse slat（12-5）, in transverse slat（12-5）Middle part is provided with the via passed through for suspender belt.
7. downward type according to claim 1 is without main truss Hanging Basket, it is characterised in that traveling method is as follows：
A, the walking of Hanging Basket Di Lan mechanisms：
After Hanging Basket Cast-in-Situ Segment prestressed stretch-draw is finished, tripod of walking（1）Move on to Hanging Basket Cast-in-Situ Segment front end and anchor, use suspender belt
（13）It is connected to lower nose girder（6）Front end suspension centre, by lower nose girder（6）Suspension centre is anchored to afterwards；
Then by lower longeron（5）Suspender belt in front and back（13）All solutions are removed, by lower longeron（5）, sill（4）And end template（14）Drop
In lower nose girder（6）On, adjust lower nose girder（6）To lower longeron（5）, sill（4）And end template（14）It is up to the standard, it is wherein lower vertical
Beam（5）It is hung in sill（4）On, sill（4）On be provided with the roller for being connected to lower nose girder, then by roller by lower longeron
（5）, sill（4）And end template（14）It is pulled in Hanging Basket fragment position to be poured；
In lower longeron（5）, sill（4）And end template（14）In moving process, will pour before tripod moves on to Hanging Basket Cast-in-Situ Segment
End, then by adjusting and lower nose girder（6）The suspender belt being connected（13）Length, by lower longeron（5）, sill（4）And end template
（14）Press close to box beam base plate, then anchor lower longeron（5）Rear end to being completed on box beam base plate, lower longeron（5）Front end
By suspender belt（13）Anchor to and pour tripod（2）On；
Suspender belt is adjusted finally（13）Length, adjusts end template（14）Absolute altitude, then assembling reinforcement remove lower nose girder（6）Anchor in front and back
Gu；Lower nose girder（6）During assembling reinforcement, moved on to by roller and complete box beam and Hanging Basket Cast-in-Situ Segment junction, carried out new and old
Concreting is renovated, and before to be poured section of prestressed stretch-draw of Hanging Basket is finished, concrete is renovated and finished, and by lower nose girder（6）Rear end
Anchor in the cast-in-place fragment position of Hanging Basket, lower nose girder（6）Front end passes through suspender belt（13）It is fixed to walking tripod（1）On, prepare to hang
A walking is walked in the key；
B, the walking of Hanging Basket side form mechanism：
When Hanging Basket Cast-in-Situ Segment concret block is poured, outer nose girder（11）Through external mold framed bent（8）Rear end anchors to
On, outer nose girder（11）Middle-end passes through suspender belt（13）It is connected to and pours tripod（2）On, wherein external mold framed bent（8）With side form（9）It is logical
Cross bolt connection integral, side form（9）Interfixed by pull bar with the internal model of box beam chamber；
After concret block tensioning is finished, side form（9）Wouldn't release with interior intermode pull bar, now side form（9）It is fixed to coagulation
On soil block body, tripod will be poured（2）Anchoring is released in front and back, pours tripod（2）Move to Hanging Basket Cast-in-Situ Segment front end specific bit
Put, after movement, tripod will be poured（2）Rear end with shoulder pole girder anchor, front end suspender belt（13）It is connected to outer nose girder（11）Front end
Suspension centre；
Then release side form（9）With interior intermode pull bar, by external mold framed bent（8）And side form（9）By roller in outer nose girder（11）On
Move forward at Hanging Basket fragment position to be poured, now, anchoring beam front and back end is anchored to into walking tripod（1）On wing plate；
Then hold external mold framed bent（8）And side form（9）, then by outer nose girder（11）Front and back end anchoring is released, and is moved forward, so
Outer nose girder afterwards（11）Rear end anchor on the cast-in-place section concrete of Hanging Basket, outer nose girder（11）Middle suspension centre is anchored to and pours tripod
（2）On, now the outer reinforcing bar of colligation box beam wing plate, now anchors beam and has completed task, dropped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510850488.1A CN105386414B (en) | 2015-11-30 | 2015-11-30 | Lower-guide type main-truss-free hanging basket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510850488.1A CN105386414B (en) | 2015-11-30 | 2015-11-30 | Lower-guide type main-truss-free hanging basket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105386414A CN105386414A (en) | 2016-03-09 |
| CN105386414B true CN105386414B (en) | 2017-03-22 |
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| CN201510850488.1A Active CN105386414B (en) | 2015-11-30 | 2015-11-30 | Lower-guide type main-truss-free hanging basket |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107386131A (en) * | 2017-07-26 | 2017-11-24 | 中交公局第二工程有限公司 | A kind of wide box girder cradle construction device with bottom joist |
| CN112709149A (en) * | 2020-12-28 | 2021-04-27 | 中铁广州工程局集团有限公司 | Construction method for composite beam bridge floor flange of cable-stayed bridge |
| CN113250088B (en) * | 2021-05-19 | 2022-11-15 | 安徽省路港工程有限责任公司 | Construction method of large hanging basket of large-span wide-width cast-in-place box girder in complex water area |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10019050C1 (en) * | 2000-04-18 | 2001-11-29 | Matthias Braun | Platform for building bridges, has a central section for preparing a sandwich panel base, which comprises a front platform for assembling steel sections and rear platform for fitting cantilever components |
| CN2597531Y (en) * | 2002-11-21 | 2004-01-07 | 广东省长大公路工程有限公司第一分公司 | Single rope face tracting rope hanging cage |
| JP4992156B2 (en) * | 2008-03-26 | 2012-08-08 | 株式会社ピーエス三菱 | Formwork support device for PC bridge construction |
| CN201473889U (en) * | 2009-06-12 | 2010-05-19 | 中铁二十二局集团第一工程有限公司 | Aslant-stayed three-cornered hanging basket |
| CN102199916B (en) * | 2011-04-12 | 2012-08-29 | 中铁三局集团有限公司 | Cradle for pouring bridge cantilever and construction method of cradle |
| CN202273182U (en) * | 2011-10-28 | 2012-06-13 | 黑龙江建筑职业技术学院 | Hanging basket for bridge construction |
| CN202830784U (en) * | 2011-12-26 | 2013-03-27 | 中国建筑第七工程局有限公司 | Truss-less construction hang basket for concreting cantilever of bridge girder body |
| CN203320427U (en) * | 2013-06-28 | 2013-12-04 | 宏润建设集团股份有限公司 | Triangular hanging basket |
| CN204728222U (en) * | 2015-04-28 | 2015-10-28 | 徐智棋 | A kind of semi girder cast-in-place construction spreading Hanging Basket |
| CN205188834U (en) * | 2015-11-30 | 2016-04-27 | 中国建筑第七工程局有限公司 | Under lead formula and does not have main truss and hang basket |
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