CN207998965U - Plastic hollow ball overlaps prefabricated board - Google Patents
Plastic hollow ball overlaps prefabricated board Download PDFInfo
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- CN207998965U CN207998965U CN201721902877.5U CN201721902877U CN207998965U CN 207998965 U CN207998965 U CN 207998965U CN 201721902877 U CN201721902877 U CN 201721902877U CN 207998965 U CN207998965 U CN 207998965U
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- Prior art keywords
- hollow ball
- plastic hollow
- prefabricated board
- reinforced mesh
- steel bar
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Abstract
The utility model discloses a kind of plastic hollow balls to overlap prefabricated board.The plastic hollow ball overlaps prefabricated board:Upper reinforced mesh;Lower reinforced mesh is arranged in the lower section of the upper reinforced mesh;Plastic hollow ball is laid between the upper reinforced mesh and lower reinforced mesh, and connect to form interlayer structure skeleton by steel bar girder;And pre- casting concrete, it is cast in the bottom of the interlayer structure skeleton.The skeleton that the plastic hollow ball overlaps prefabricated board forms " sandwich " structural framework, convenient and quick construction using two layers of welded reinforcement mesh sheet+plastic hollow ball.It is connected and is embedded in hollow ball superimposed sheet by waveform steel bar girder between reinforced mesh, enhance the shear resistance of superimposed sheet.The addition of plastic hollow ball alleviates the weight of laminated floor slab, enhances anti-seismic performance, sound insulation value.
Description
Technical field
The utility model is related to build assembly field, more particularly to a kind of plastic hollow ball overlaps prefabricated board.
Background technology
Building industrialization has become the inexorable trend of China's building trade development, and cast-in-place architectural mode is changed by factory
Prefabricated, field-installed assembly architectural mode.
Currently, laminated floor slab mainly has ordinary flat type prestressed concrete laminated floor slab, prefabricated prestressed concrete with ribbing
Native superimposed sheet and regular reinforcement truss superimposed sheet.
Ordinary flat type prestressed concrete overlapped slab is combined by the rough surface of plate upper surface with overlapping layer concrete,
Section shear is resisted, shear resistance is poor;Prefabricated prestressed concrete overlapped slab with ribbing carry concrete rib, on rib there are for
The cavity of interspersed reinforcing bar, the rib are easy to destroy during hoisting transportation, and are not easy interspersed reinforcing bar;Regular reinforcement truss overlaps
For plate due to using common steel bar stress, panel stiffness is small, and required plate thickness is big, increases dead load, and the plate bearing load model
It encloses smaller.
The information for being disclosed in the background technology part is merely intended to increase the understanding to the general background of the utility model, and
It is not construed as recognizing or implying in any form that information composition has been existing well known to persons skilled in the art
Technology.
Utility model content
The purpose of this utility model is to provide a kind of simple and reasonable plastic hollow balls to overlap prefabricated board, the plastics
The skeleton that hollow ball overlaps prefabricated board forms " sandwich " structural framework, construction using two layers of welded reinforcement mesh sheet+plastic hollow ball
It is convenient and efficient.It is connected and is embedded in hollow ball superimposed sheet by waveform steel bar girder between reinforced mesh, enhance overlapping
The shear resistance of plate.The addition of plastic hollow ball alleviates the weight of laminated floor slab, enhances anti-seismic performance, sound insulation value.
To achieve the above object, the utility model provides a kind of plastic hollow ball overlapping prefabricated board, the plastic hollow ball
Overlapping prefabricated board includes:Upper reinforced mesh;Lower reinforced mesh is arranged in the lower section of the upper reinforced mesh;Plastic hollow ball,
It is laid between the upper reinforced mesh and lower reinforced mesh, and connects to form interlayer structure skeleton by steel bar girder;With
And pre- casting concrete, it is cast in the bottom of the interlayer structure skeleton.
Preferably, in above-mentioned technical proposal, upper reinforced mesh and lower reinforced mesh are all made of reinforcement welding and form pre-manufactured steel
Muscle mesh sheet, a diameter of 6~φ of φ 10mm of reinforcing bar.
Preferably, in above-mentioned technical proposal, steel bar girder is waveform, the spacing of the steel bar girder be 600mm~
800mm。
Preferably, in above-mentioned technical proposal, the ball wall thickness of plastic hollow ball is 1mm, a diameter of: 225mm,270mm,
315mm or 360mm.
Preferably, in above-mentioned technical proposal, it is 75 ± 25mm that pre- casting concrete, which uses C35 concrete, slump,.
Compared with prior art, the utility model has the advantages that:(1) the plastic hollow ball overlaps prefabricated board
Safety of structure is good:Compared to traditional in-situ reinforced concrete slab, plastic hollow ball superimposed sheet significantly reduces structural slab gross weight
Amount 30% or so, alleviates floor dead load, substantially increases bearing capacity of floor slab.Further, since the reduction of dead load, structure
Shock resistance has also obtained effective promotion.Due to being formd inside cast-in-situ hollow floor plate on an empty stomach, reduce superfluous in Structure Calculation
Bending stiffness enables material to give full play to structure stress effect, keeps structural system intensity big, overall stiffness is good, safe to use.
(2) shear behavior of plastic hollow ball overlapping prefabricated board is good:Overlapping building is enhanced by waveform steel bar girder
The shear behavior of plate.
(3) construction cost of plastic hollow ball overlapping prefabricated board is low:Plastic hollow ball superimposed sheet plate reduces material utilization amount
Up to 30%, concrete is substituted with baton round, 100kg concrete can be replaced per 1kg baton rounds, substantially reduces material cost.Due to
Prefabricated board mainly based on factory process, realizes design standard, process industry, installation mechanization, improves component matter
Amount, while a large amount of templates and support are also saved, speed of application is improved, construction cost is effectively reduced.
(4) plastic hollow ball overlapping prefabricated board is environmentally protective:Plastic hollow ball superimposed sheet is by returning waste plastic
It receives and utilizes, 100kg concrete can be replaced per 1kg baton rounds, reduces the dosage 30% of concrete, reduce concrete processing
And influence of the situ wet operation to haze.Due to having had certain rigidity when prefabricated board site operation, scene is without being laid with multilayer
Plate reduces the consumption of timber.Sound insulation, heat-insulated, heat insulation effect is good.
Description of the drawings
Fig. 1 is that the plastic hollow ball of the utility model overlaps the structural schematic diagram of prefabricated board.
Fig. 2 is that the plastic hollow ball of the utility model overlaps the pre- casting concrete of prefabricated board and pours flow chart.
Fig. 3 be the utility model plastic hollow ball overlap the breakage of prefabricated board, arrisdefect process chart.
Fig. 4 is that the plastic hollow ball of the utility model overlaps the installation procedure figure of prefabricated board.
Specific implementation mode
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail, it is to be understood that this practicality
Novel protection domain is not restricted by specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " comprising " or its change
It changes such as "comprising" or " including " etc. and will be understood to comprise stated element or component, and do not exclude other members
Part or other component parts.
As shown in Figure 1, overlapping the concrete structure of prefabricated board according to the plastic hollow ball of specific embodiment of the present invention
Including:Upper reinforced mesh 1, plastic hollow ball 2, lower reinforced mesh 3, steel bar girder 4 and the pre- casting concrete positioned at bottom
5.Wherein, plastic hollow ball 2 is laid between reinforced mesh 1 and lower reinforced mesh 3, and is connected and formed by steel bar girder 4
Interlayer structure skeleton, pre- casting concrete 5 are cast in the bottom of interlayer structure skeleton;Using reinforced mesh+plastic hollow ball
Structural framework can improve construction efficiency, ensure construction quality, reinforcing bar stirrup need not additionally be arranged, and enhance the anti-of superimposed sheet
Ability is cut, and saves material.It is connected and is embedded in hollow ball superimposed sheet by waveform steel bar girder between reinforced mesh, increased
The strong shear resistance of superimposed sheet.The addition of plastic hollow ball alleviates the weight of laminated floor slab, enhances anti-seismic performance, sound insulation
Performance etc..
Specifically, upper reinforced mesh 1 and lower reinforced mesh 3 are all made of reinforcement welding and form precast reinforced mesh sheet (Fy=
460N/mm2), a diameter of 6~φ of φ 10mm of reinforcing bar are connected by steel bar girder 4 between upper and lower layer reinforced mesh.It is preferred that
, steel bar girder 4 is waveform.The spacing of steel bar girder 4 is 600mm~800mm, that is, be can guarantee between upper and lower reinforced mesh
Away from, and plastic hollow ball is fixed between corresponding steel grid, additionally it is possible to so that reinforced mesh+baton round " sandwich " structure
There is certain rigidity, convenient for storage and installation.
Plastic hollow ball 2 is laid between reinforced mesh 1 and lower reinforced mesh 3, and is connected and formed by steel bar girder 4
Interlayer structure skeleton, plastic hollow ball 2 are made of recyclable plastics, and the waste material for being difficult to degrade is made to be reused,
With the structure same service life;The ball wall thickness about 1mm of plastic hollow ball, common diameter include 225mm, 270mm, 315mm, 360mm etc.;
Baton round has many advantages, such as that pollution-free, corrosion-resistant, intensity is high, long lifespan.
For pre- casting concrete 5 using C35 concrete (Fcu=35N/mm2), slump is 75 ± 25mm, advance in factory
Certain thickness is poured, pours remainder at the construction field (site).
As shown in Fig. 2, the pre- casting concrete of plastic hollow ball overlapping prefabricated board pours:
When making plastic hollow ball overlapping prefabricated board, bottom 60mm thickness C35 concrete is first poured, 75 ± 25mm of slump,
5~20mm of coarse aggregate size range.Lower reinforced mesh 3 installs plastic cushion, and cushion block spacing is not more than 1000mm, it is ensured that after load
Bar frame is smooth and protective layer thickness.
When interlayer structure skeleton is pressed into concrete, the short along interlayer structure skeleton arranges 100 × 100mm square steel tubes,
Away from for 1500mm, beams of concrete, spacing 1000mm then are being placed perpendicular to square steel tube, guarantee uniformly presses interlayer structure skeleton
Enter in concrete.
It after the completion of concreting, is conserved in time, plastic hollow ball, which is then overlapped prefabricated board, is transferred to component pair
Square field, and it is neatly packed, it can be transported to construction site after intensity is not less than the 75% of design requirement concentrating maintenance 7 days.
Plastic hollow ball overlaps the scene transport of prefabricated board:
(1) haulage vehicle should be selected according to the size and weight demands of hollow ball prefabricated board, handling and transportational process are taken an examination
Consider car body balance.
(2) should be taken when loading and unloading hollow ball prefabricated board and ensure car body balance, prevent car body from toppling, prevent prefabricated board mobile or
The banding fixed measure toppled over.
(3) corner of hollow ball prefabricated board and hollow ball prefabricated board and binding, support contact position, are preferably lined with using flexible pad
It is protected.
(4) hollow ball prefabricated board bottom plate preferably uses flat transporting.
(5) live transport routes are answered smooth, should meet requirement for bearing capacity.
It stacks at the scene that plastic hollow ball overlaps prefabricated board:
(1), should be by kind after hollow ball prefabricated board is marched into the arena, stacking is respectively set in specification, lifting sequence, and stacking is preferably arranged
In lifting machine working range.
(2) hollow ball prefabricated board preferably uses the mode of stacking, and stacks the number of plies and is not preferably greater than 6 layers, support pad, support pad should be arranged in bottom
Smooth and support pad ground is answered to answer solid;Hollow ball prefabricated board must not be directly placed on ground.
When hollow ball prefabricated board is transported and stacked, built-in hanger present position should avoid blocking, and be easy to lift by crane.
Crack is caused during loading and unloading or lighter inside, crack is measured with crack clearance gauge after range estimation and is recorded.For broken
Damage, arrisdefect, dew muscle, are measured and are recorded with steel ruler after range estimation.
As shown in figure 3, the treating method of the breakage of plastic hollow ball overlapping prefabricated board, arrisdefect:
It when losing fangle is smaller, can be cleaned down with wire brush, after clear water flushing is sufficiently humidified so as to, with 1:2 or 1:2.5 water
Cement mortar, which is smeared, to be studied for a second time courses one has flunked just;
When losing fangle is larger, stone will be loosened and particle outstanding is rejected, after scrubbing clean, then formwork is first-class with height
The pea gravel concreten of grade intensity carefully vibrate by filling, reinforces maintenance.
As shown in figure 4, the installation of plastic hollow ball overlapping prefabricated board:
Stent system is set up using gate-type frame, using it is in bulk dissipate tear open by the way of.According to design requirement, the branch of 450mm slabs
Support, door frame longitudinal pitch are 0.9m, and horizontal spacing is not more than 0.9m;The supporting rack of 280mm slabs, door frame longitudinal pitch are
1.8m, horizontal spacing are not more than 0.9m;The cantilever span of prefabricated board is not greater than 500mm, and main joist spacing is not greater than 1.5m;
Door frame is grown perpendicular to prefabricated board to setting up;When all design heights are more than 3.5m, every 2m height application right-angle couplers and steel strut
It sockets, and connect with structural column firm, prevent supporting rack from moving.
After jacking coarse adjustment absolute altitude, for installation 75mm × 75mm square steel tubes as main joist, it is (main that its spacing is not greater than 1200mm
Keel spacing is determined according to load by calculating);The direction of main joist must hang down with the direction of plastic hollow ball floor (long to)
Directly.
After main joist installs, checks main joist with spirit level, conscientiously adjust jacking absolute altitude, main joist top surface is made to meet
Designed elevation (i.e. prefabricated board bottom absolute altitude meets design requirement).According to design requirement arch camber, when designing no requirement (NR), springing height is
The 1/1000~3/1000 of full span length's degree.
Plastic hollow ball overlaps the lifting of prefabricated board:
Cable wind rope is added using the lifting device of carrying pole type when lifting, is lifted by crane according to lifting sequence, it should be slow when lifting
It rises, even liter, delays drop (lifting schematic diagram).The played line of ink marker is slowly under floor location, the region for lifting process before lifting
Side's setting alert zone, construction personnel should withdraw, be assumed unified command of by signalman, wait for that component drops to work surface 1m or so height when in place
Construction personnel can lean near operation when spending, and cable wind rope is affected to keep component in the right direction.
Lifting point is determined that general one piece of prefabricated board has 8 suspension centres, each suspension centre to be sprayed with white marking by design;Arrange 2
People is responsible for hook on truck, and the installation that 4-6 people is responsible for prefabricated board in installment work face is in place;Two signalman are arranged to be responsible for
Command tower crane, one on truck, one on working face;After hook is errorless on inspection, start slowly to lift by crane.
After prefabricated board transports to working face by tower crane, by the requirement of floor erection drawing by template number and the plate core indicated of scene
It is right, it sits in the right seat (verification mark ball), must not misplace, the position line is directed at when baton round concrete prefabricated board is installed, slowly decline,
It breaks off relations again after stable;If prefabricated board needs to adjust, edges of boards are agitated at leisure with crowbar, so that Board position and plate stitch width is met and are set
Meter requires;In frame column and wall position, prefabricated board should enter frame column or wall body structure 10mm-20mm.
Plastic hollow ball overlaps the joint treatment of prefabricated board:
The edge of hollow ball prefabricated board must fall one 45 degree of oblique angle, be highly 40mm, so that concrete can be by this
Gap filling is closely knit, to ensure the reinforcing bar matcoveredn between plate stitch, in order to avoid corrosion.Prefabricated board is after installation is complete, at two pieces
" V " shape material strip is installed, to avoid plate stitch spillage between plate.
Plastic hollow ball overlaps the installation additional bar of prefabricated board:
According to design drawing, bottom additional bar, edges of boards additional bar, top additional bar etc. are installed successively, and handle
Hidden inspection formality, concrete casting formality.
Plastic hollow ball overlaps the concreting of prefabricated board:
Total floor thickness is 450mm, deducts precast concrete plate part 60mm, and others are all made of cast-in-place concrete, existing
Match ratio, casting method, maintenance process of pouring concrete etc. are identical as common contignation.
To sum up, the skeleton of plastic hollow ball overlapping prefabricated board is formed using two layers of welded reinforcement mesh sheet+plastic hollow ball
" sandwich " structural framework, convenient and quick construction.It is connected by waveform steel bar girder between reinforced mesh and is embedded in hollow ball
In superimposed sheet, the shear resistance of superimposed sheet is enhanced.The addition of plastic hollow ball alleviates the weight of laminated floor slab, enhances anti-
Shock stability, sound insulation value.
The description of the aforementioned specific exemplary embodiment to the utility model is in order to illustrate and illustration purpose.These
Description is not wishing to for the utility model to be limited to disclosed precise forms, and it will be apparent that according to the above instruction, can carry out
Many change and variations.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the utility model
And its practical application, so that those skilled in the art can realize and utilize a variety of different examples of the utility model
Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shapes
Formula is limited.
Claims (5)
1. a kind of plastic hollow ball overlaps prefabricated board, which is characterized in that including:
Upper reinforced mesh;
Lower reinforced mesh is arranged in the lower section of the upper reinforced mesh;
Plastic hollow ball is laid between the upper reinforced mesh and lower reinforced mesh, and connects to be formed by steel bar girder
Interlayer structure skeleton;And
Pre- casting concrete is cast in the bottom of the interlayer structure skeleton.
2. plastic hollow ball according to claim 1 overlaps prefabricated board, which is characterized in that the upper reinforced mesh and lower steel
Muscle mesh sheet is all made of reinforcement welding and forms precast reinforced mesh sheet, a diameter of 6~φ of φ 10mm of reinforcing bar.
3. plastic hollow ball according to claim 1 overlaps prefabricated board, which is characterized in that the steel bar girder is wave
The spacing of shape, the steel bar girder is 600mm~800mm.
4. plastic hollow ball according to claim 1 overlaps prefabricated board, which is characterized in that the ball wall of the plastic hollow ball
Thickness is 1mm, a diameter of:225mm, 270mm, 315mm or 360mm.
5. plastic hollow ball according to claim 1 overlaps prefabricated board, which is characterized in that the pre- casting concrete uses
C35 concrete, slump are 75 ± 25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721902877.5U CN207998965U (en) | 2017-12-29 | 2017-12-29 | Plastic hollow ball overlaps prefabricated board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721902877.5U CN207998965U (en) | 2017-12-29 | 2017-12-29 | Plastic hollow ball overlaps prefabricated board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207998965U true CN207998965U (en) | 2018-10-23 |
Family
ID=63836401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721902877.5U Active CN207998965U (en) | 2017-12-29 | 2017-12-29 | Plastic hollow ball overlaps prefabricated board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207998965U (en) |
-
2017
- 2017-12-29 CN CN201721902877.5U patent/CN207998965U/en active Active
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