CN109667228A - A kind of straight beam formula Hanging Basket and continuous beam cantilever pouring construction method - Google Patents
A kind of straight beam formula Hanging Basket and continuous beam cantilever pouring construction method Download PDFInfo
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- CN109667228A CN109667228A CN201910068228.7A CN201910068228A CN109667228A CN 109667228 A CN109667228 A CN 109667228A CN 201910068228 A CN201910068228 A CN 201910068228A CN 109667228 A CN109667228 A CN 109667228A
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- girder
- hanging basket
- rear anchor
- anchor device
- basket
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- 238000010276 construction Methods 0.000 title claims abstract description 19
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- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 3
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- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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Classifications
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The present invention discloses a kind of straight beam formula Hanging Basket and continuous beam cantilever pouring construction method, straight beam formula Hanging Basket includes the fixed girder in front end, bottom basket is slidably connected on the girder, the bottom basket includes upper beam, the upper beam has been respectively fixedly connected with bottom die platform and L-shaped extension leg, internal model, outer side mold and bed die are installed in the bottom basket, the bed die is fixedly connected in the bottom die platform, and the outer side mold is supported by the bottom die platform and the extension leg.Beneficial effects of the present invention: achievable main span 48m's to 100m special line for passenger trains Construction of continuous beam is general, and girder height is small, center of gravity is low, and stability is good, Hanging Basket installs safe ready, and rigidity is big, securely and reliably, using anchor mode after rigid frame posture, the rear anchor of traveling and working condition is two-in-one, and antidumping coefficient increases substantially, walking state safety, reliably, convenient, quickly, wind resistance security level is high.
Description
Technical field
The present invention relates to continuous beam cantilever placing installation technical fields, it particularly relates to a kind of straight beam formula Hanging Basket and company
Continuous girder cantilever pouring construction method.
Background technique
Tradition continuous beam cantilever, which pours mode, at present triangle, Diamond-Shape Form Traveler, the engineering project in violent typhoon area, and one
As use Diamond-Shape Form Traveler.But its disadvantage: 1. since its walking rails depends on box beam vertical prestressing bar, and main truss spacing need to press
The adjustment of vertical prestressing horizontal spacing, the sunpender key seat of bottom die platform and stringer position and each sunpender, anchor pole position are also required to
Hide longitudinal prestressing pipeline to be adjusted, therefore the continuous beam of various spans cannot be general.2. triangle and Diamond-Shape Form Traveler connect
Need to increase additional disjunctor component when body construction, when disintegration also needs in addition to increase disintegration component, and disintegration program is cumbersome, peace
Full hidden danger is very big.3. triangular form or Diamond-Shape Form Traveler, main truss is up to 4m to 5m, needs lateral connection system by ability after the connection of two Pin main trusses
It is able to maintain stabilization.In cradle assembly, two Pin main trusses need to be respectively fixed temporarily using several chain blocks, lift lateral connection system
When, it is difficult to avoid colliding with main truss, crisis safety.It is more dangerous if encountering instantaneous high wind during the installation process.And laterally connect
Connecing is to mostly use to weld with main truss at the scene greatly, and welding quality is difficult to ensure.It is hidden that straight beam formula Hanging Basket completely avoids above-mentioned safety
Suffer from.4. anchor pricks twisted steel anchor rod using shoulder pole girder and essence after triangle and Diamond-Shape Form Traveler.Essence bundle twisted steel anchor rod length is longer, draws
It is big to stretch deformation, therefore the total deformation of Hanging Basket also increases.Essence, which pricks screw-thread steel, does not have an apparent yield point, without any tendency before destroying,
Belong to brittle fracture, and brittle fracture intensity sharply declines after touching fire.During actual construction, anchor pole is difficult to keep vertical, anchorage with
Backing plate point contact makes anchor pole and anchorage generate very big secondary stress.The antidumping coefficient of the perfect condition of theoretical calculation is higher, but real
The 2.0 of code requirement are often not achieved in border state, have very big security risk.5. the outer side mold of trigonometric decomposition is in traveling
External mold is placed in journey to walk on cross girders.It walks cross girders front end and preceding upper beam is hung in by essence bundle screw-thread steel sunpender, screw thread is pricked by essence in rear end
Steel sunpender and hanging ring are hung on box beam flange plate.Walking cross girders front and back is all flexible suspension rod.When traveling, deposited due to walking cross girders with hanging ring
In very big frictional resistance, external mold can not walk first cross girders sunpender bending deflection, work as sunpender with main couple and bed die synchronous walking
Deflection to a certain extent, when horizontal component is greater than frictional resistance, is walked and just generates relative movement between cross girders and rear hanging ring, cause outside
The walking of mould pulsed, front and back essence prick screw-thread steel sunpender deflection flex repeatedly.This is the maximum of trigonometric decomposition and Diamond-Shape Form Traveler
Security risk, and the accident for thering is external mold to fall.
For the problems in the relevant technologies, currently no effective solution has been proposed.
Summary of the invention
For above-mentioned technical problem in the related technology, the present invention proposes a kind of straight beam formula Hanging Basket, is provided with L shape and hangs leg,
Outer side mold can be directly placed at rigidity and hang on leg, eliminate away cross girders and front and back sunpender, it is ensured that outer side mold is synchronous with bottom basket, bed die
Traveling.
To realize the above-mentioned technical purpose, the technical scheme of the present invention is realized as follows:
A kind of straight beam formula Hanging Basket slidably connects bottom basket on the girder, the bottom basket includes upper including the girder that front end is fixed
Crossbeam, the upper beam have been respectively fixedly connected with bottom die platform and L-shaped extension leg, have been installed with internal model, outer side mold in the bottom basket
And bed die, the bed die are fixedly connected in the bottom die platform, the outer side mold is by the bottom die platform and the extension leg branch
Support.
Further, the girder is steel box-girder.
Further, the front end of the girder is anchored by preceding support and the continuous beam after the completion of pouring.
Further, the girder is slidably connected the bottom basket by rear anchor device, girder anchor dress after described
Set, it is described after the top of anchor device be provided with idler wheel, be provided with to the top side detachable of the girder and the idler wheel match
Slideway, the rear anchor device are fixedly connected with the upper beam, are fixedly connected on the preceding support opposite with the rear anchor device
The jack answered.
Further, after described the lower part of anchor device be provided with it is dismountable after anchor anchor pole, at the top of the girder with it is described
Dismountable rear anchor jacking cylinder is provided between anchor device afterwards.
Further, the upper beam passes through sunpender respectively and is fixedly connected with the internal model, the outer side mold and the bed die
Platform.
Further, first sunpender and rear anchor anchor pole are all made of Q345 round steel.
Further, the nut bottom of the sunpender and the nut bottom of the rear anchor anchor pole are provided with spherical cushion block.
The invention also discloses one kind to adopt continuous beam cantilever pouring construction method, comprising the following steps:
S1 is after the concreting of continuous beam finishes 48 hours or continuous beam concrete roof intensity is not less than after 20Mpa, pine
Over side form and internal model, so that the outer side mold is supported on bottom die platform and is hung on leg, and carry out track installation；
Anchor device after the bottom surface of bed die and continuous beam is detached from and is unclamped by S2；
After anchor device is totally released after described in S3, the rear anchor device is elapsed so that bottom basket is moved along girder using jack；
The movement of bottom basket described in S4 is in place and bed die center line fixes the rear anchor device afterwards in place；
S5 is elapsed at the internal model to accurate location；
S6 connects the outer side mold, the internal model and the bed die and carries out concreting next time.
Beneficial effects of the present invention: general, the girder of main span 48m to 100m special line for passenger trains Construction of continuous beam can be achieved
It is highly small, center of gravity is low, stability is good, Hanging Basket install safe ready, rigidity is big, securely and reliably, using anchor side after rigid frame posture
The rear anchor of formula, traveling and working condition is two-in-one, and antidumping coefficient increases substantially, walking state safety, reliably, convenient, fastly
Speed, wind resistance security level are high.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the front view of the straight beam formula Hanging Basket described according to embodiments of the present invention；
Fig. 2 is the side view of the straight beam formula Hanging Basket described according to embodiments of the present invention；
Fig. 3 is the front view of the girder described according to embodiments of the present invention；
Fig. 4 is the side view of the girder described according to embodiments of the present invention；
Fig. 5 is the front view of the rear anchor device described according to embodiments of the present invention；
Fig. 6 is the side view of the rear anchor device described according to embodiments of the present invention；
Fig. 7 is the schematic diagram of the jack described according to embodiments of the present invention.
In figure:
1, girder；2, preceding support；3, rear anchor device；4, jack；5, upper beam；6, leg is hung；7, cantilever beam；8, bottom die platform；
9, outer side mold；10, internal model；11, mould is held.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art's every other embodiment obtained belong to what the present invention protected
Range.
As shown in figs. 1-7, a kind of straight beam formula Hanging Basket according to embodiments of the present invention, the girder 1 including front end fixation,
Bottom basket is slidably connected on the girder 1, the bottom basket includes upper beam 5, and it is flat that the upper beam 5 has been respectively fixedly connected with bed die
Platform 8 and L-shaped extension leg 6 are installed with internal model 10, outer side mold 9 and bed die in the bottom basket, and the bed die is fixedly connected with the bottom
On mould platform 8, the outer side mold 9 is supported by the bottom die platform 8 and the extension leg 6.
In one particular embodiment of the present invention, the girder 1 is steel box-girder.
In one particular embodiment of the present invention, company of the front end of the girder 1 by preceding support 2 and after the completion of pouring
Continuous beam anchoring.
In one particular embodiment of the present invention, the girder 1 is slidably connected the bottom basket by rear anchor device 3, institute
Girder 1 is stated through the rear anchor device 3, the top of the rear anchor device 3 is provided with idler wheel, the top side detachable of the girder 1
Ground is provided with the slideway to match with the idler wheel, and the anchor device 3 afterwards is fixedly connected with the upper beam 5, consolidates on the preceding support 2
Surely it is connected with jack 4 corresponding with the anchor device 3 afterwards.
In one particular embodiment of the present invention, the lower part of the rear anchor device 3 is provided with dismountable rear anchor anchor pole,
Dismountable rear anchor jacking cylinder is provided between 1 top of girder and the rear anchor device 3.
In one particular embodiment of the present invention, the upper beam 5 respectively by sunpender be fixedly connected the internal model 10,
The outer side mold 9 and the bottom die platform 8.
In one particular embodiment of the present invention, first sunpender and rear anchor anchor pole are all made of Q345 round steel.
In one particular embodiment of the present invention, the nut bottom of the nut bottom of the sunpender and the rear anchor anchor pole
It is provided with spherical cushion block.
The invention also discloses a kind of continuous beam cantilever pouring construction methods, which comprises the following steps:
S1 is after the concreting of continuous beam finishes 48 hours or continuous beam concrete roof intensity is not less than after 20Mpa, pine
Over side form 9 and internal model 10, so that the outer side mold 9 is supported on bottom die platform 8 and is hung on leg 6, and carry out track installation；
Anchor device 3 after the bottom surface of bed die and continuous beam is detached from and is unclamped by S2；
After anchor device 3 is totally released after described in S3, the rear anchor device 3 is elapsed so that bottom basket is moved along girder 1 using jack 4
It is dynamic；
The movement of bottom basket described in S4 is in place and bed die center line fixes the rear anchor device 3 afterwards in place；
S5 is elapsed at the internal model to accurate location；
S6 connects the outer side mold 9, the internal model 10 and the bed die and carries out concreting next time.
In order to facilitate above-mentioned technical proposal of the invention is understood, below by way of specifically used mode to above-mentioned skill of the invention
Art scheme is described in detail.
Straight beam formula Hanging Basket of the present invention by girder 1, bottom basket, preceding support 2, rear anchor device 3, jack 4, internal model 10,
The part such as outer side mold 9 and bed die forms.Outer side mold 9 is by connecting internal model 10 to pull rod.
Bottom basket includes upper beam 5, hangs leg 6, cantilever beam 7, bottom die platform 8, and upper beam 5 hangs leg 6 by the connection of cantilever beam 7.
Not only bottom basket is completely general for straight beam formula Hanging Basket, and outer side mold 9 is also that can recycle.Outer side mold 9 is provided with three
The all general fixation position of the various beam type in road is made of to pull rod, while in bottom die platform 8 horizontal truss, and horizontal truss can be right
Outer side mold 9 provides reliable support, and outer side mold 9 can be by the variation of deck-molding with the mobile Support Position of bottom die platform 8.
Straight beam formula Hanging Basket disjunctor and disintegration do not need any other component, itself can disjunctor, when disintegration is normal with Hanging Basket
Traveling is identical.
Girder 1 is made of cross-section steel box-girder, and depth of section is only 1.2m, is not necessarily to lateral connection system, itself has foot
Enough stability.And lateral connection system mostly uses weld at the scene with main truss greatly, welding quality is difficult to ensure.Straight beam formula Hanging Basket is complete
Above-mentioned security risk is avoided entirely.
Girder 1 uses steel box-girder, and not only vertical and lateral bending stiffness is big, and torsional rigidity is also much larger than triangle or diamond shape
Hanging Basket.
The sunpender of straight beam formula Hanging Basket and rear anchor anchor pole are all made of Q345 round steel.Q345 steel have apparent yield point, tool
There are good toughness and solderability.Be respectively provided with below the nut of sunpender and rear anchor anchor pole can adjust automatically gradient ball pad
Block keeps nut and spherical cushion block closely connected, so that sunpender and rear anchor anchor pole is in pure tension state always, prevent sunpender and rear anchor anchor
Bar causes nut and cushion block point contact when tilting, and sunpender, rear anchor anchor pole and nut is made to generate very big secondary stress.
Straight beam formula Hanging Basket is using rear anchor anchor pole made of rear anchor device 3 made of rigid frame and Q345 round steel, by rigidity
Framework substitution shoulder pole girder, rigid frame are directly anchored at back, and anchorage length is short, anchor pole reliable performance, adjust along with automatic
The spherical cushion block of whole gradient makes rear anchor device 3 be really achieved 6.0 Overturning Coefficient.
Straight beam formula suspended basket uses walking, and walking state safety is reliably, convenient, quickly.
Straight beam formula Hanging Basket design wind speed is 33.5m/s.All hanging basket's components, template and guard system can be supported without reinforcing
Drive 12 grades of typhoons.
Straight beam formula Hanging Basket is completely enclosed by holding mould 11 to be truly realized.And the pendant object weight that may occur by each position and
Protective equipment is respectively set in height, it is ensured that protection safety is effective.
It before jack 4 can be fixed on support 2, could be secured on the counter-force seat being specially arranged, counter-force seat and back anchor
Gu and being fixedly connected with girder 1.
Hanging Basket is mobile: 1) after concreting finishes 48 hours or concrete roof intensity is not less than after 20MPa, removing
To the sunpender on pull rod and outer side mold 9 and bottom die platform 8；The wedge block between outer side mold 9 and horizontal truss is removed, interior external mold is made
Plate demoulding；Using chain block to 10 lower end of internal model is drawn, make the web templates rotating shrinking of internal model 10, unclamps hanging for exterior sheathing 9
Bar, i.e. release outer side mold, external mold carry out track installation after unclamping.
2) sunpender of internal model 10 is replaced at preceding suspender belt.
3) sunpender at the middle part of bottom die platform 8 is removed, and makes the rear portion of bottom die platform and the sunpender decline of the right and left
50mm is detached from bed die and continuous soffit.
4) between continuous beam and girder 1 install jacking cylinder bearing beam, jacking cylinder, shoulder pole girder, tighten shoulder pole girder with
The connection bolt of girder 1.The support anchor pole of support 2 before removing；The connection bolt of support 2 and girder 1 before removing.Jacking cylinder top
It rises, 1 bottom surface of girder and preceding 2 top surface of support is made to be detached from 5mm.Preceding support 2 is slid onto next beam section position along girder 1, in adjustment
The heart simultaneously anchors.Jacking cylinder decline, before falling in girder 1 on support 2, support 2 connects with girder 1 before anchoring preceding support 2 and tightening
Connecting bolt.
5) anchor device 3 is totally released afterwards, and rear anchor jacking cylinder jacking makes 1 rear end of girder decline 5mm.Installation insurance anchor pole,
And tighten nut.Anchor anchor pole after dismounting.Next beam section is slid onto along girder 1 by rear anchor device 3 is synchronous with bottom basket by jack 4
Anchor location afterwards,.
6) bottom basket is in place and bed die center line installs anchor anchor pole after spherical cushion block and installation afterwards in place, anchor jacking oil after installation
Cylinder.Anchor jacking cylinder jacks afterwards, and idler wheel is made to de-orbit 5mm.Remove insurance anchor pole.
7) it elapses at internal model to accurate location.
8) bed die and sunpender on outer side mold 9 are installed and bed die is made to reach design altitude.
9) wedge block between outer side mold 9 and horizontal truss is installed, outer side mold 9 is corrected.
10) installation end mould 11, installs case beam bottom plate and web reinforcement；Web prestress pipe is installed.Correct internal model 10, peace
Dress is to pull rod.Roof steel bar and prestress pipe are installed.Check Hanging Basket rear concrete perfusion without exception.
Two screw jack of suspender belt must place steadily, be placed on beam section concrete body, and choker block wants closely knit；Support is hung
Two axis of band and shoulder pole girder middle line must be coplanar, and 4 stress point of jack cannot beyond shoulder pole girder stiffening plate with
Outside.
All jack strokes of support suspender belt must not exceed 100mm, and the pin shaft on suspender belt must put on nut and screw
In place.
Every back strap pretension is jack 4 plus the 100cm rocking bar of 30 tons or so or every back straps with a work people
Member shakes subject to motionless, and every back strap pretension size wants almost the same.
Downrod lower end portion must screw out nut 4cm, the steel to be added thickness on nut not less than 15mm, not less than 150*120mm
Plate, steel plate want closely connected with nut, as have on steel plate welding slag polished flat rear can be used.
The same suspender belt of sunpender pretension.
All finish rolling deformed bars do not allow by curved on Hanging Basket.
Used high-strength bolt, construction requirement are as follows on Hanging Basket: 1) high-strength bolt auxiliary connection is in transport, management process
In, answer it is with light packs, gently unload, prevent damage screw thread.
2) high-strength bolt auxiliary connection should be by lot number dated on packing case, specification classification keeping, and indoor storage, it is unsuitable to stack
It is excessively high, prevent the foul that gets rusty and be infected with.High-strength bolt auxiliary connection is forbidden arbitrarily to unpack before installing and using.
3) before high-strength bolt installation, floating rust and the foul on rubbing surface should be brushed with finer wire.
4) installation of high-strength bolt should carry out after structural elements center adjusts, and penetrating direction should be with easy for construction
Subject to, and make every effort to consistent.When high-strength bolt auxiliary connection assembles, side of the nut with round table surface should have the one of chamfering towards washer
Side.When for the assembling of big hexagonal high-strength bolt auxiliary connection, bolt head lower gasket has the side of chamfering should be towards bolt head.
5) when high-strength bolt is installed, forbid to penetrate bolt (such as striking with a hammer) by force.When cannot such as freely pass into, which is answered
It is modified with reamer, the maximum gauge for modifying metapore should be less than 1.2 times of diameters of bolt.When repairing hole, to prevent iron filings from falling into plate
Repeatedly seam in, surrounding bolt should all be tightened before fraising, make plate change it is closely connected after carry out again.Forbid gas cutting reaming.
6) when installing high-strength bolt, the rubbing surface of component should keep drying, must not be in rain work.
7) big hexagonal high-strength bolt construction torque wrench used, must correct, torque error must not be big before
In ± 5%, qualified rear standard is used.The torque wrench of correction, torque error are not greater than ± 3%.
8) tightening for big hexagonal high-strength bolt should be divided into just stubborn, whole twist.Twist at the beginning of should being divided into for large-scale node, twist again,
It twists eventually.First screwing torque is 50% or so of construction torque, and multiple screwing torque is equal to first screwing torque.High-strength bolt after just twisting or twisting again
Label is coated on nut using color, then twist eventually by the construction torque value that design provides.High-strength bolt after twisting eventually
Label is coated on nut using another middle color.
9) it is only quasi- to apply torque on nut when big hexagonal high-strength bolt is tightened.
10) high-strength bolt just twist, it is multiple twist and twist eventually when, the bolt of junction should apply in certain sequence it is stubborn, generally should be by
Bolt center sequence is tightened outward.
11) the first of high-strength bolt twists, twists again, twisting should complete on the same day eventually.
Points for attention: 1) all finish rolling deformed bars use after answering prestretching qualified.Reliably protecting measure should be taken in construction,
Prevent that electric spark touches bending.
2) it can need to add operating platform and aisle according to construction, but weight should be mitigated as far as possible under the premise of safe and reliable.
3) all screw rods and finish rolling deformed bar must expose three silk of nut or more.
4) it suspends finish rolling deformed bar used in the basket of bottom in midair and preferably selects two nuts.
5) should be noted that when operating screw rod and finish rolling deformed bar rises or falls prevents maloperation from it being made to break or fall off.
6) strong wind or thunderstorm weather are met, Hanging Basket forbids Forward or climbing shuttering.
7) rail level of Hanging Basket turnover zone answers oiling grease lubrication, should be noted that in Hanging Basket moving process and corrects its deviation.
8) when bottom basket is mobile, forbid stand people or stacked items on workbench.
9) bridge floor should be levelling using high grade mortar direction across bridge under track.
10) length that must be reserved for the box beam vertical prestressing bar of anchoring is 22 centimetres from box beam top surface.It is not used in anchor
Solid box beam vertical prestressing bar, guarantee its top lower than box beam top surface after tensioning is complete.
Test is for checking girder 1, the bearing capacity of rear anchor device 3 and the pre-buried situation of finish rolling deformed bar.Cradle test
It is as follows: 1) to use 4 precompressed of hydraulic jack in 1 front nodal point of girder.
2) every node point Pyatyi loads: 70KN, 177KN, 282KN, 353KN, 424KN, every grade of load hold lotus 15min.
3) every grade of load measurement front nodal point sinking, front fulcrum sedimentation value, rear fulcrum raise value.
In conclusion by means of above-mentioned technical proposal of the invention, it can be achieved that main span 48m to 100m special line for passenger trains connect
Continue the general of beam construction, girder height is small, center of gravity is low, and stability is good, and Hanging Basket installs safe ready, and rigidity is big, securely and reliably, adopts
With anchor mode after rigid frame posture, the rear anchor of traveling and working condition is two-in-one, and antidumping coefficient increases substantially, walking state
Safety, reliably, convenient, quickly, wind resistance security level is high.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of straight beam formula Hanging Basket, which is characterized in that including the girder (1) that front end is fixed, slidably connected on the girder (1)
Bottom basket, the bottom basket include upper beam (5), and the upper beam (5) has been respectively fixedly connected with bottom die platform (8) and L-shaped extension leg
(6), it is installed with internal model (10), outer side mold (9) and bed die, the bed die in the bottom basket and is fixedly connected with the bottom die platform
(8) on, the outer side mold (9) is supported by the bottom die platform (8) and the extension leg (6).
2. straight beam formula Hanging Basket according to claim 1, which is characterized in that the girder (1) is steel box-girder.
3. straight beam formula Hanging Basket according to claim 1, which is characterized in that the front end of the girder (1) passes through preceding support (2)
It is anchored with the continuous beam after the completion of pouring.
4. straight beam formula Hanging Basket according to claim 3, which is characterized in that the girder (1) is slided by rear anchor device (3)
The bottom basket is connected, the girder (1) is provided with idler wheel through the rear anchor device (3), the top of the rear anchor device (3),
It is provided with to the top side detachable of the girder (1) slideway to match with the idler wheel, the rear anchor device (3) is fixedly connected with institute
It states upper beam (5), jack (4) corresponding with rear anchor device (3) is fixedly connected on the preceding support (2).
5. straight beam formula Hanging Basket according to claim 4, which is characterized in that the lower part of the rear anchor device (3) is provided with can
It is oily to be provided with dismountable rear anchor jacking for the rear anchor anchor pole of disassembly between girder (1) top and the rear anchor device (3)
Cylinder.
6. straight beam formula Hanging Basket according to claim 5, which is characterized in that the upper beam (5) is fixed by sunpender respectively
Connect the internal model (10), the outer side mold (9) and the bottom die platform (8).
7. straight beam formula Hanging Basket according to claim 6, which is characterized in that first sunpender and rear anchor anchor pole are all made of
Q345 round steel.
8. straight beam formula Hanging Basket according to claim 6, which is characterized in that the nut bottom of the sunpender and the rear anchor anchor
The nut bottom of bar is provided with spherical cushion block.
9. a kind of continuous beam cantilever pouring construction method using straight beam formula Hanging Basket as claimed in claim 5, which is characterized in that
The following steps are included:
S1 is after the concreting of continuous beam finishes 48 hours or continuous beam concrete roof intensity is not less than after 20Mpa, pine
Over side form (9) and internal model (10), so that the outer side mold (9) is supported on bottom die platform (8) and is hung on leg (6), and carry out track
Installation；
Anchor device (3) after the bottom surface of bed die and continuous beam is detached from and is unclamped by S2；
After anchor device (3) is totally released after described in S3, the rear anchor device (3) is elapsed using jack (4) so that bottom basket is along main
Beam (1) is mobile；
The movement of bottom basket described in S4 is in place and bed die center line fixes the rear anchor device (3) afterwards in place；
S5 is elapsed at the internal model to accurate location；
S6 connects the outer side mold (9), the internal model (10) and the bed die and carries out concreting next time.
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| CN201910068228.7A CN109667228B (en) | 2019-01-24 | 2019-01-24 | Straight beam type hanging basket and continuous beam cantilever pouring construction method |
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| CN109667228B CN109667228B (en) | 2024-02-02 |
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| CN112900287A (en) * | 2021-03-11 | 2021-06-04 | 中铁十六局集团第五工程有限公司 | Cantilever perfusion bridge fabrication machine |
| CN115821769A (en) * | 2022-11-28 | 2023-03-21 | 中铁四局集团有限公司 | Variable cross-section intelligent bridge fabrication machine |
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| CN109667228B (en) | 2024-02-02 |
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