CN104196161B - Construction method for cast-in-situ hollow floorslab and airbag-type core framework thereof - Google Patents
Construction method for cast-in-situ hollow floorslab and airbag-type core framework thereof Download PDFInfo
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- CN104196161B CN104196161B CN201410472950.4A CN201410472950A CN104196161B CN 104196161 B CN104196161 B CN 104196161B CN 201410472950 A CN201410472950 A CN 201410472950A CN 104196161 B CN104196161 B CN 104196161B
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- gasbag
- type core
- pull piece
- reinforcing bar
- lower floor
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- 238000010276 construction Methods 0.000 title claims abstract description 26
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 20
- 238000007667 floating Methods 0.000 claims abstract description 53
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 230000007704 transition Effects 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 60
- 239000010410 layer Substances 0.000 claims description 26
- 210000001320 hippocampus Anatomy 0.000 claims description 17
- 230000001012 protector Effects 0.000 claims description 15
- 239000011241 protective layer Substances 0.000 claims description 13
- 238000000465 moulding Methods 0.000 claims description 4
- 210000003205 muscle Anatomy 0.000 claims description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 2
- 210000002435 tendon Anatomy 0.000 claims description 2
- 238000005266 casting Methods 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 12
- 230000015572 biosynthetic process Effects 0.000 description 10
- 238000005187 foaming Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 210000003462 vein Anatomy 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000009958 sewing Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 210000004712 air sac Anatomy 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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- Air Bags (AREA)
Abstract
The invention discloses a construction method of a cast-in-situ hollow floorslab and an airbag-type core framework thereof. The airbag-type core framework comprises an airbag cover and a protecting layer sleeving outside; the airbag cover comprises a bottom surface, a top surface, side surfaces and transition slopes; mutually pulling pieces used for mutually pulling of the bottom surface and the top surface are arranged in the airbag cover, side mutually pulling parts are arranged on the side surfaces, and slope pulling pieces are arranged in places, located in the airbag cover, in the transition slopes. The construction method includes building of framework, mounting of anti-floating pieces, laying of lower steel bars, mounting of lower supporting and fixing pieces, laying of the inflatable airbag mandrel, mounting of upper supporting and fixing pieces, laying of upper layer steel bars and casting of concrete. The top surface and the bottom surface of the airbag-type core framework can become curved surfaces under the action of air pressure, use amount of concrete can be decreased, cost can be reduced, weight of the hollow floorslab can be reduced, quality of the upper surface and the lower surface of the hollow floorslab can be improved, the core framework can be chamfered, and a guiding function upon the concrete can be achieved; the airbag-type core framework can be prevented from being wrapped after being fixed.
Description
Technical field
The present invention relates to the gasbag-type core of cast-in-situ hollow floor plate and the construction method of cast-in-situ hollow floor plate.
Background technology
Cast-in-situ hollow floor plate is because, the advantages of it is lightweight, good integrity, seriality are good, it has been widely used each
Plant in building.The construction method of cast-in-situ hollow floor plate mainly include building template, laying lower floor reinforcing bar, laying core, in laying
Layer reinforcing bar, then pours into a mould concrete, finally template is disassembled formation floor.
Existing core is mainly by foaming inner core and the protective layer that is wrapped on foaming inner core forms, although this core weight
Amount is light, but, when foaming inner core is after molding, the given volume of foaming inner core and substantially will not changing, therefore, each
Parking space required for core big so that depositing and the cost that transports is very high, in addition, after the completion of top bars laying,
Top bars crisscross formation network structure, and each reinforcing bar be all colligation together, if lower floor's core and upper strata core
Between a certain core damaged, then top bars must be dismantled and could change, and because top bars is network structure,
Therefore, unusual trouble, the replacing also very inconvenience of core are removed.
Another kind of structure of existing core is inflated inner tyre mould.As being 2003 in Application No. 03111149.1 applying date
On March 11, publication date be on October 1st, 2003 patent documentation in disclose a kind of cast-in-situ hollow floor plate inflated inner tyre
Mould, it includes the inflatable material with charging connector, and this inflatable material is cylinder.During construction, this inflated inner tyre mould is placed
Between upper and lower layer reinforcing bar, the face of cylinder of inflated inner tyre mould is contacted with upper and lower layer reinforcing bar, but because of cassette ceiling upper and lower surface
It is plane, and the top and bottom of inflated inner tyre film are cambered surface, when pouring into a mould concrete, one side inflated inner tyre film fixed part
Reliable and easily produce the phenomenon of drift, on the other hand the gap between adjacent inflated inner tyre film is big, therefore, the pouring of concrete
Fluence is big, not only increases cost, and also increases the weight of cassette ceiling.Even and if by inflated inner tyre film upper and lower surface
It is fabricated to plane, but after inflation, plane can become cambered surface under the influence of air pressure, still can't resolve above-mentioned technical problem.
In addition, in order to form guide effect to the concrete of cast, allowing concrete pour into a mould more smoothly, in existing core
Mould is provided with chamfering, such as Application No. 201310564664.6 applying date be on November 14th, 2013 publication date be 2014 2
A kind of core is disclosed, this core by foaming inner core and is wrapped in the protective layer group on foaming inner core in the patent documentation on the moon 5
Become, because this core is mainly foaming inner core, therefore, chamfering is readily formed in foaming process, and certainly, chamfering can also be led to
Cross cutting to be formed, but for gasbag-type core, once inflation, air bag is readily formed cambered surface and difficult in the presence of gas
To form chamfering, thus it is unable to reach above-mentioned purpose.
Also disclose the method that foaming core is fixed in the prior art, its method is tying up using decussation
Band is fixed to foaming core, but due to being inflation in gasbag-type core, therefore, using said structure fixation balloon formula core
Mould is easy to phenomenon rake angle.
Content of the invention
The first object of the present invention is to provide a kind of gasbag-type core of cast-in-situ hollow floor plate, using the gasbag-type of the present invention
Core, is avoided that gasbag inflation rear top surface and bottom surface become cambered surface because of the effect of air pressure, reduces the consumption of concrete, reduce into
This, reduce the weight of cassette ceiling, improves the quality of cassette ceiling upper and lower surface, and can guarantee that gasbag forms after inflating
Angle, the effect to concrete guiding of playing is moreover it is possible to prevent from puncturing gasbag in work progress.
The second object of the present invention is to provide a kind of construction method of cast-in-situ hollow floor plate, using the method, is avoided that gas
Pouch inflation rear top surface and bottom surface become cambered surface because of the effect of air pressure, reduce the consumption of concrete, reduce cost, reduce hollow building
The weight of plate, improves the quality of cassette ceiling upper and lower surface, and can guarantee that formation chamfering after gasbag inflation, plays to concrete
The effect of guiding is moreover it is possible to prevent from puncturing gasbag in work progress.
For reaching above-mentioned first purpose, the gasbag-type core of cast-in-situ hollow floor plate, including gasbag;Gasbag includes bottom
Face, top surface, side and intermediate incline;Side is connected between top surface and intermediate incline, and intermediate incline is connected to side and bottom surface
Between, intermediate incline inwardly rolls tiltedly from side;It is provided with the pull piece that bottom surface and top surface are mutually drawn in gasbag, in gas
It is provided with the side pull piece that offside face has inside pulling force in capsule band, intermediate incline is located in gasbag and is provided with oblique pull piece;
In gasbag overcoat matcoveredn.
Said structure, due to being provided with pull piece between bottom surface and top surface, after inflating to gasbag-type core, is mutually drawing
In the presence of part, between bottom surface and top surface, create mutual inside pulling force, therefore, bottom surface and top surface will not become cambered surface,
So, in construction, reliable, firm being fixed between upper and lower layer reinforcing bar of energy of gasbag-type core, the air bag when pouring into a mould concrete
The phenomenon drifted about is less likely to occur formula core, in addition, little, the required amount of concrete in the gap between adjacent cells formula core
Few, thus reducing cost, also reduce the weight of cassette ceiling, meanwhile, because of two bottom surfaces and the top of inflated airbag formula core
Face will not become cambered surface so that cassette ceiling upper and lower surface quality is good.Due to being provided with side pull piece, when in gas replenishment process,
Side pull piece offside face has inside pulling force so that side self-assembling formation plane;Due to being provided with oblique pull piece, when in inflation
During, oblique pull piece has pulling force and self-assembling formation inclined-plane to intermediate incline, and solving existing gasbag-type core can not solve
Technical problem, after defining intermediate incline, pour into a mould concrete when, intermediate incline has guide effect to concrete, makes
The concrete flowing that must pour into a mould is more smoothly it is not easy to form cavity.Further, due to for gasbag-type core, in storage with transport
Do not need when defeated inflate, therefore, gasbag-type core take space little so that depositing low with cost of transportation;In addition, it is mixed in cast
During solidifying soil, when destroying if there is gasbag-type core and needing to change, as long as the gas in gasbag-type core is released, then
Gasbag-type core can take out in the space between bar-mat reinforcement, and the gasbag-type core then placing a new unaerated is to up and down
Between reinforcing bar, finally inflate, therefore, there is no need to disassemble top bars and can achieve and gasbag-type core is changed.
Said structure, due to being provided with protective layer, accordingly, it is capable to preferably protection air bag is punctured and cannot normally use.
Further, described pull piece, side pull piece and oblique pull piece are drawstring.
Further, described pull piece, side pull piece and oblique pull piece are drawstring.
Further, pull piece and the junction of top surface and bottom surface are ring-shaped.The pull piece attachment structure of this structure makes
Must be to the mutual tension uniform of bottom surface and top surface, therefore, during inflation, bottom surface and top surface are not more allowed yielding.
Further, the section of gasbag is square;It is provided with clear opening at the middle part of gasbag.
Further, described protective layer includes bottom, top layer and side layer, and wherein, bottom is mutually sutured with side layer, top
Layer is mutually sutured with side layer, and bottom, top layer and side layer form the cavity of accommodating gasbag.Protective layer is connected using sewing,
The efficiency high of processing, fastness is good.
For reaching above-mentioned second purpose, cassette ceiling includes lower floor's reinforcing bar, gasbag-type core, top bars and concrete,
After cassette ceiling molding, lower floor's reinforcing bar, gasbag-type core, top bars are coated by concrete;Lower floor's reinforcing bar is provided with for
Connect the anti-floating component of template, be provided with subiculum firmware between lower floor's reinforcing bar and gasbag-type core, on gasbag-type core and upper strata
It is provided with pop-up firmware, described gasbag-type core is fixed on lower floor's reinforcing bar by fixed structure between reinforcing bar;Gasbag-type core
Including gasbag and be enclosed within the protective layer outside gasbag;Gasbag includes bottom surface, top surface, side and intermediate incline;Side connects
Between top surface and intermediate incline, intermediate incline is connected between side and bottom surface, and intermediate incline inwardly rolls tiltedly from side;?
It is provided with the pull piece that bottom surface and top surface are mutually drawn in gasbag, be provided with the side that offside face has inside pulling force in air sac belt
Pull piece, is located in gasbag on intermediate incline and is provided with oblique pull piece;
The construction method of above-mentioned cassette ceiling is:
(1)Build template;
(2)Anti-floating component is fixed in template;
(3)By on lower floor's reinforcing steel bar laying to anti-floating component, and using anti-floating component, lower floor's reinforcing bar is positioned;Then profit
With colligation silk, lower floor's reinforcing bar and anti-floating component are bundled, to realize fixation on anti-floating component for lower floor's reinforcing bar;
(4)Subiculum firmware is navigated on lower floor's reinforcing bar, then gasbag-type core is inflated, gasbag-type core is placed into
On subiculum firmware;
(5)Using fixed structure, gasbag-type core is fixed on lower floor's reinforcing bar;
(6)Pop-up firmware is arranged on gasbag-type core;
(7)Top bars is navigated on pop-up firmware;
(8)To template upper concrete;
(9)After concrete setting, disassemble template, be finally completed the construction of cassette ceiling.
Above-mentioned construction method, due to being provided with pull piece between bottom surface and top surface, after inflating to gasbag-type core,
In the presence of pull piece, between bottom surface and top surface, create mutual inside pulling force, therefore, bottom surface and top surface will not become arc
Face, so, in construction, reliable, firm being fixed between upper and lower layer reinforcing bar of energy of gasbag-type core, when pouring into a mould concrete
The phenomenon drifted about is less likely to occur gasbag-type core, in addition, little, the required concrete in the gap between adjacent cells formula core
Amount is few, thus reducing cost, also reduces the weight of cassette ceiling, meanwhile, because inflated airbag formula core two bottom surfaces and
Top surface will not become cambered surface so that cassette ceiling upper and lower surface quality is good.Due to being provided with side pull piece, when in gas replenishment process
In, side pull piece offside face has inside pulling force so that side self-assembling formation plane;Due to being provided with oblique pull piece, when
In gas replenishment process, oblique pull piece has pulling force and self-assembling formation inclined-plane to intermediate incline, and solving existing gasbag-type core can not
The technical problem solving, after defining intermediate incline, when pouring into a mould concrete, intermediate incline has guiding and makees to concrete
With so that the concrete flowing of cast is more smoothly it is not easy to form cavity.In addition, in cast Concrete, if
When gasbag-type core destruction and needing to change, as long as the gas in gasbag-type core is released, then gasbag-type core is permissible
Take out in the space between bar-mat reinforcement, then place the gasbag-type core of a new unaerated between upper and lower reinforcing bar, finally
Inflate, therefore, there is no need to disassemble top bars and can achieve and gasbag-type core is changed.Above-mentioned construction method,
Due to being provided with protective layer, accordingly, it is capable to preferably protection air bag is punctured and cannot normally use.
Further, gasbag-type core is provided with clear opening, is inserted with fixing protector in clear opening;Described fixation
Structure includes horizontal bandage and longitudinal bandage, and one end of horizontal bandage is connected on fixture, and the other end passes through fixing protection dress
It is connected on lower floor's reinforcing bar after putting leap gasbag-type core;One end of longitudinal bandage is fixed on fixture, longitudinal bandage another
One end is fixed on lower floor's reinforcing bar across gasbag-type core, and longitudinal bandage is distributed in the both sides of clear opening.Worn using horizontal bandage
Cross the horizontal fixation to gasbag-type core for the fixing protector realization, by clear opening both sides and vertical across gasbag-type core
To bandage, gasbag-type core is carried out longitudinally fixed, this fixed structure can prevent inflated airbag formula core from showing of rake angle occurring
As thus more convenient cast concrete, the quality of floor also can be improved.
Further, fixing protector includes cylinder and the location-plate of hollow, and location-plate is connected to one end of cylinder,
Location-plate is provided with locating slot.The cylinder of described hollow is used for being inserted in gasbag-type core, and so that one end of cylinder is flushed in
Or exceed gasbag-type core, in fixation balloon formula core, one end of horizontal bandage is after cylinder passes through and crosses gasbag-type core
It is bundled on reinforcing bar, and using locating slot, horizontal bandage is positioned, prevent horizontal bandage from moving, so, in gasbag-type core
The corner of mould, because there being the protection of protection device, horizontal bandage would not be embedded in gasbag-type core and damage gasbag-type core
Mould, thus serving the effect of protection gasbag-type core, and location-plate can play length in restriction cylinder insertion gasbag-type core
The effect of degree, thus can guarantee that location-plate is exposed at outside gasbag-type core.
Further, described locating slot is the groove of horizontal expansion.Described locating slot is convex by two horizontal expansions
Muscle is formed.
Brief description
Fig. 1 is the sectional view of gasbag-type core.
Fig. 2 is the schematic diagram of fixation balloon formula core.
Fig. 3 is the front view of fixing protector.
Fig. 4 is the top view of fixing protector.
Fig. 5 is the upward view of fixing protector.
Fig. 6 is the axonometric chart of fixing protector.
Fig. 7 is the structural representation of cassette ceiling in cassette ceiling work progress.
Fig. 8 is the structural representation of anti-floating component.
Fig. 9 is the front view of anti-floating base.
Figure 10 is the top view of anti-floating base.
Figure 11 is the upward view of anti-floating base.
Figure 12 is the axonometric chart of anti-floating base.
Figure 13 is anti-floating base A-A sectional view.
Figure 14 is the front view of lid in anti-floating.
Figure 15 is the left view of lid in anti-floating.
Figure 16 is the top view of lid in anti-floating.
Figure 17 is the upward view of lid in anti-floating.
Figure 18 is the axonometric chart of lid in anti-floating.
Figure 19 is to cover B-B sectional view in anti-floating.
Figure 20 is the axonometric chart of subiculum firmware.
Figure 21 is the front view of subiculum firmware.
Figure 22 is the top view of subiculum firmware.
Figure 23 is the schematic diagram of another structure of subiculum firmware.
Figure 24 is the axonometric chart of pop-up firmware.
Figure 25 is the front view of pop-up firmware.
Figure 26 is the upward view of pop-up firmware.
Figure 27 is the schematic diagram of another structure of pop-up firmware.
Specific embodiment
The present invention will be described in further detail with reference to the accompanying drawings and detailed description.
As depicted in figs. 1 and 2, the gasbag-type core of cast-in-situ hollow floor plate includes gasbag 41 and is enclosed within outside gasbag 41
Protective layer 42.
Have clear opening 415 at the middle part of gasbag 41, for installing fixing protector, in the present embodiment, gas
The section of pouch 41 is square.Gasbag 41 includes bottom surface 411, top surface 412, side 413 and intermediate incline 414;Side 413
On the edge that upper edge is connected to top surface 412 by way of welding, the lower edge of side 413 is connected by way of welding
It is connected on the top edge of intermediate incline 414.The lower limb of intermediate incline 414 is connected to the side of bottom surface 411 by way of welding
On edge, intermediate incline 414 inwardly rolls tiltedly from side;It is provided with gasbag 41 and bottom surface 411 and top surface 412 mutually drawn
Pull piece 43, is provided with the side pull piece 44a connecting between side 413 and pull piece 43, certainly, side pull piece in gasbag 41
Can also be attached between side 413 and top surface 412, or side pull piece is connected between side 413 and bottom surface 411, in mistake
Cross to be located in gasbag 41 between inclined-plane 414 and top surface 412 and be provided with oblique pull piece 44, pull piece, side pull piece and oblique pull piece
Preferably drawstring, wherein, is connected to the drawstring horizontally set of side, and the drawstring horizontally set on intermediate incline, in gasbag 41
The cavity of interior drawstring both sides all communicates, and pull piece and bottom surface and top surface are that annular is connected so as to bottom surface 411 and top surface
412 mutual tension uniform, therefore, during inflation, bottom surface and top surface are not more allowed yielding.
Described protective layer 42 includes bottom, top layer and side layer, and wherein, bottom is mutually sutured with side layer, top layer and side
Boundary layer phase sutures, and bottom, top layer and side layer form the cavity of accommodating gasbag, corresponds to the position of clear opening on protective layer 42
Install feeding mouth 421.Protective layer, the efficiency high of processing are connected using sewing, fastness is good.
As shown in Figures 3 to 6, fixing protector includes cylinder 461 and the location-plate 462 of hollow.In present embodiment
In, the cross section of cylinder 461 is annular, and certain cylinder 461 can also be square or other shape changeables.Outside cylinder 461
Form step.Described location-plate 462 is connected to cylinder 461 and holds greatly end, and the outer rim of location-plate 462 protrudes the side of cylinder 461
Wall, in the present embodiment, location-plate 462 is square.It is provided with locating slot 463 in location-plate 462, in the present embodiment, fixed
Position groove 463 is formed by the convex tendon 4631 of two horizontal expansions, and locating slot is oppositely arranged.Certainly, location-plate 462 is arranged recessed
Sunken portion, thus form locating slot can also.
Before inflating in by charging connector 45 to gasbag 41, the cylinder 461 of hollow is inserted in gasbag-type core, and
Position the depth of cylinder 461 insertion using location-plate 462.
As shown in Figure 2 and Figure 7, cassette ceiling include anti-floating component 1, lower floor's reinforcing bar 2, subiculum firmware 3, gasbag-type core 4,
Pop-up firmware 5, top bars 6, concrete seven and fixed structure.After cassette ceiling molding, lower floor's reinforcing bar 2, subiculum firmware 3, core
4th, pop-up firmware 5, top bars 6 are coated by mixed mud.
As shown in figure 8, anti-floating component includes covering 12 in anti-floating base 11 and anti-floating.
As shown in Fig. 9 to Figure 13, anti-floating base 11 includes fixed part 111 and connecting portion 112, fixed part 111 and connecting portion
112 cross section is circle, and the lower end of connecting portion 112 is connected on fixed part 111, and the edge of fixed part 111 protrudes connecting portion
112.Installing hole 1111 is provided with fixed part 111;Connecting portion 112 has the axial clear opening communicating with installing hole 1111
1121;It is extended with boss 1112 upwards outside self installation hole on fixed part 111.The outer wall of connecting portion 112 is provided with external screw thread.?
Connecting portion 112 is provided with top-down open slot(Not shown).When applying removal force to template 10, because of depositing of open slot
, then connecting portion can deform, therefore, anti-floating base 11 together with template 10 depart from anti-floating on cover 12.So, colligation can be prevented
Silk 9 exposes, and can play fixing lower floor reinforcing bar 2 and prevent the effect that reinforcing bar and gasbag-type core float, and this anti-floating machine
The structure of structure is simple, manufacture, easy construction.
As shown in Figure 14 to Figure 19, the containing cavities 121 that in anti-floating, lid 12 has an accommodating connecting portion 112, containing cavity 121 interior
Wall is provided with the female thread engaging with external screw thread.The colligation portion that is provided with is covered on anti-floating, colligation portion is the side of the lid 12 from anti-floating
Colligation arm 122 and the blocking part 123 extending downwardly from colligation arm 122 that wall stretches out, colligation arm 122, blocking part 123 and anti-
Form clamping groove 124 between floating upper lid.Reinforcing bar location division is provided with lid 12 in anti-floating, described reinforcing bar location division is recessed groove
125.
Described lower floor's reinforcing bar 2 is made up of transverse steel and longitudinal reinforcement, and is in network structure.
As shown in Figure 20 to Figure 22, subiculum firmware 3 includes lower support locating part 31 and lower limiting board 32.
Described lower support locating part 31 is the hollow support column 311 of more than two be outwards arranged in order from middle part, empty
The rectangular cross-section of heart support column 311, has gap between adjacent hollow support column;In one end of hollow support column 311, setting is fixed
Position draw-in groove, described locating groove includes intersecting located lateral draw-in groove 3111 and longitudinal register draw-in groove 3112, located lateral card
The depth of groove 3111 is more than the depth of longitudinal register draw-in groove 3112, at the decussation for holding lower floor reinforcing bar, fixed to improve
The reliability of position.In order to improve the intensity of lower support locating part, horizontal gusset 3113 and longitudinal rib are provided with hollow support column
Plate 3114.
Described lower limiting board 32 is fixed on the other end of lower support locating part 31, sets on the upper surface of lower limiting board 32
There are anti-slip veins 321.As shown in figure 23, in order to prevent gasbag-type core mobile it is also possible to the convex of taper is arranged on lower limiting board
Point 322 is so that spur 322 is inserted in gasbag-type core.
As shown in Figure 24 to Figure 25, pop-up fixture includes supporting locating part 51 and upper limit plate 52.
The gusset 511 of described upper supporting locating part 51 parallel arrangement, has gap between adjacent webs;In gusset 511
One end arranges locating groove 512, for holding reinforcing bar.In order to improve the intensity of gusset, it is provided with reinforcing plate 513 between gusset.
Described upper limit plate 52 is fixed on the other end of gusset 511, as shown in figure 26, in the upper surface of upper limit plate 52
It is provided with anti-slip veins 521.As shown in figure 27, in order to prevent gasbag-type core mobile it is also possible to taper is arranged on upper limit plate
Spur 522 so that spur 522 is inserted in gasbag-type core.
As shown in Fig. 2 gasbag-type core is fixed by fixed structure, described fixed structure is including horizontal bandage
471 and longitudinal bandage 472, in fixation balloon formula core, one end of horizontal bandage 471 is connected on lower floor's reinforcing bar 2, the other end
Cross over through fixing protector and be connected on lower floor's reinforcing bar 2 after gasbag-type core, and using locating slot 463 to horizontal bandage
471 are positioned, and prevent horizontal bandage 471 mobile, so, in the corner of air bag core clear opening top and bottom, because having
The protection of fixing protector, horizontal bandage 471 would not be embedded in gasbag-type core and damage gasbag-type core, thus rising
Arrive the effect of protection gasbag-type core.One end of longitudinal bandage 472 is fixed on lower floor's reinforcing bar 2, longitudinal bandage 472 another
End is fixed on lower floor's reinforcing bar across gasbag-type core, and longitudinal bandage 472 is distributed in the both sides of clear opening.Using horizontal bandage
471 pass through the horizontal fixation to gasbag-type core for the fixing protector realization, by clear opening both sides and across gasbag-type core
Longitudinal bandage 472 of mould carries out longitudinally fixed to gasbag-type core, and this fixed structure can prevent inflated airbag formula core from sending out
The phenomenon of raw rake angle, thus more convenient cast concrete, also can improve the quality of floor.
In order to prevent horizontal and vertical bandage to be embedded in gasbag-type core in the upper corner of gasbag-type core outer rim, then
Backing plate 481 is set between the upper corner of horizontal bandage 471 and gasbag-type core outer rim, in longitudinal bandage 472 and gasbag-type core
Backing plate 482 is set between the upper corner of mould outer rim.
The construction method of cassette ceiling is:
(1)Build template 10.
(2)Anti-floating base 11 is fixed in template 10 by screw, then lid 12 in anti-floating is connected to anti-floating base
On 11.
(3)Lower floor's reinforcing bar 2 is routed on lid 12 in anti-floating, and using recessed groove 125, lower floor's reinforcing bar is positioned;So
Using colligation silk 9, lower floor's reinforcing bar 2 and colligation arm 122 are bundled afterwards, depart from colligation using blocking part 123 backstop colligation silk
Arm 122, to realize fixation on anti-floating component 1 for the lower floor's reinforcing bar 2.
(4)By the located lateral groove of subiculum firmware 33 and longitudinal register groove holding on lower floor's reinforcing bar 2, to realize to subiculum
The positioning of firmware 33, then inflated airbag formula core 4 is placed on subiculum firmware 3, convex using anti-slip veins 321 or taper
Point 322 positions to core.
(5)Using fixed structure, gasbag-type core 4 is fixed on lower floor's reinforcing bar 2.
(6)Pop-up firmware 5 is arranged on gasbag-type core 4, using anti-slip veins 521 or taper spur 522 to pop-up
Firmware 5 is positioned.
(7)By top bars 6 holding in locating groove 512.
(8)The concrete perfusion in template 10.
(9)After concrete setting, apply removal force to template 10, now, therefore, anti-floating base 11 and anti-floating cover 12
For dismountable connection, such as threaded or snap connection, therefore, anti-floating base 11 is followed template 10 and is disassembled together,
Complete the construction of cassette ceiling eventually.
In the present embodiment, due to being provided with pull piece 43 between bottom surface 411 and top surface 412, when by charging connector 4
After the inflation of gasbag-type core, in the presence of pull piece 43, between bottom surface and top surface, create mutual inside pulling force, side
Pull piece 44a offside face has inside pulling force, and oblique pull piece 44 has pulling force to intermediate incline, therefore, bottom surface 411 and top surface
412 will not become cambered surface, side 413 self-assembling formation plane, intermediate incline 414 self-assembling formation, so, in construction, gasbag-type
Core reliable, firm being fixed between upper and lower reinforcing bar of energy, when pouring into a mould concrete, drift is less likely to occur gasbag-type core
Phenomenon, in addition, the gap between adjacent cells formula core is little, required amount of concrete is few, thus reducing cost, also reduces
The weight of cassette ceiling, meanwhile, because inflated airbag formula core two bottom surfaces and top surface will not become cambered surface so that hollow building
Plate upper and lower surface quality is good.Due to being provided with oblique pull piece 44, when, in gas replenishment process, oblique pull piece 44 is to intermediate incline 414
There is pulling force and self-assembling formation inclined-plane, solve the indeterminable technical problem of existing gasbag-type core, oblique when defining transition
Behind face 414, when pouring into a mould concrete, intermediate incline 414 has guide effect to concrete so that the concrete of cast flows more
Plus smooth it is not easy to formed cavity.Further, due to for gasbag-type core, not needing in storage and transport to inflate, therefore,
Gasbag-type core take space little so that depositing low with cost of transportation;In addition, in cast Concrete, if there is
When gasbag-type core destroys and needs to change, as long as the gas in gasbag-type core is released, then gasbag-type core can be from steel
Take out in space between muscle net, then place the gasbag-type core of a new unaerated between upper and lower reinforcing bar, finally inflate
, therefore, there is no need to disassemble top bars and can achieve and gasbag-type core is changed.Pull piece and bottom surface and top surface
So that mutual tension uniform to bottom surface and top surface when connecting for annular, therefore, during inflation, mutability is not more allowed in top surface and bottom surface
Shape.
Above-mentioned construction method, because anti-floating base is fixedly connected with template, on anti-floating base and anti-floating lid by screw thread or
The dismountable connection of buckle, therefore, anti-floating base can depart from lid in anti-floating together with template.So, can prevent colligation silk from exposing, and
And when pouring into a mould concrete, due to the presence of anti-floating component, accordingly, it is capable to playing fixing cover to reinforcement and preventing reinforcing bar and core
The effect floated, and the structure of this anti-floating mechanism is simple, manufacture, easy construction.In work progress, due to employing subiculum
Firmware and pop-up firmware, accordingly, it is capable to reliably limit the distance between reinforcing bar and core so that concrete can enter into core and
In gap between reinforcing bar, thus improving the quality of cassette ceiling, and can ensure that the thickness of floor reaches design requirement.
Claims (10)
1. the gasbag-type core of cast-in-situ hollow floor plate, including gasbag;It is characterized in that:Gasbag includes bottom surface, top surface, side
And intermediate incline;Side is connected between top surface and intermediate incline, and intermediate incline is connected between side and bottom surface, intermediate incline
Inwardly roll tiltedly from side;It is provided with the pull piece that bottom surface and top surface are mutually drawn, pull piece and bottom surface and top in gasbag
Face is that annular connects;Be provided with the side pull piece connecting between side and pull piece in gasbag, in intermediate incline and top surface and
It is located in gasbag between the junction point of pull piece and be provided with oblique pull piece;In gasbag overcoat matcoveredn.
2. cast-in-situ hollow floor plate according to claim 1 gasbag-type core it is characterised in that:Described pull piece, side
Pull piece and oblique pull piece are drawstring.
3. cast-in-situ hollow floor plate according to claim 1 gasbag-type core it is characterised in that:Described pull piece, side
Pull piece and oblique pull piece are drawstring.
4. cast-in-situ hollow floor plate according to claim 1 gasbag-type core it is characterised in that:Pull piece and top surface and bottom
The junction in face is ring-shaped.
5. cast-in-situ hollow floor plate according to claim 1 gasbag-type core it is characterised in that:The section of gasbag is side
Shape;It is provided with clear opening at the middle part of gasbag.
6. cast-in-situ hollow floor plate according to claim 1 gasbag-type core it is characterised in that:Described protective layer includes
Bottom, top layer and side layer, wherein, bottom is mutually sutured with side layer, and top layer is mutually sutured with side layer, bottom, top layer and side
Layer forms the cavity of accommodating gasbag.
7. cast-in-situ hollow floor plate construction method it is characterised in that:Cassette ceiling includes lower floor's reinforcing bar, gasbag-type core, upper strata
Reinforcing bar and concrete, after cassette ceiling molding, lower floor's reinforcing bar, gasbag-type core, top bars are coated by concrete;In lower floor's steel
Muscle is provided with the anti-floating component for connecting template, is provided with subiculum firmware, in air bag between lower floor's reinforcing bar and gasbag-type core
It is provided with pop-up firmware, described gasbag-type core is fixed to lower floor's reinforcing bar by fixed structure between formula core and top bars
On;Gasbag-type core includes gasbag and is enclosed within the protective layer outside gasbag;Gasbag includes bottom surface, top surface, side and transition
Inclined-plane;Side is connected between top surface and intermediate incline, and intermediate incline is connected between side and bottom surface, and intermediate incline is from side
Inwardly roll tiltedly;It is provided with the pull piece that bottom surface and top surface are mutually drawn in gasbag, pull piece is ring with bottom surface and top surface
Shape connects;It is provided with the side pull piece connecting between side and pull piece in gasbag, in intermediate incline and top surface and pull piece
Junction point between be located at gasbag in be provided with oblique pull piece;
The construction method of above-mentioned cassette ceiling is:
(1)Build template;
(2)Anti-floating component is fixed in template;
(3)By on lower floor's reinforcing steel bar laying to anti-floating component, and using anti-floating component, lower floor's reinforcing bar is positioned;Then using tying up
Lower floor's reinforcing bar and anti-floating component are bundled by tied silk, to realize fixation on anti-floating component for lower floor's reinforcing bar;
(4)Subiculum firmware is navigated on lower floor's reinforcing bar, then gasbag-type core is inflated, gasbag-type core is placed into subiculum
On firmware;
(5)Using fixed structure, gasbag-type core is fixed on lower floor's reinforcing bar;
(6)Pop-up firmware is arranged on gasbag-type core;
(7)Top bars is navigated on pop-up firmware;
(8)To template upper concrete;
(9)After concrete setting, disassemble template, be finally completed the construction of cassette ceiling.
8. cassette ceiling according to claim 7 construction method it is characterised in that:Gasbag-type core is provided with straight-through
Hole, is inserted with fixing protector in clear opening;Described fixed structure includes horizontal bandage and longitudinal bandage, horizontal bandage
One end is connected on fixture, and the other end passes through fixing protector to be connected on lower floor's reinforcing bar after crossing over gasbag-type core;Vertical
It is fixed on fixture to one end of bandage, the other end of longitudinal bandage is fixed on lower floor's reinforcing bar across gasbag-type core, indulge
It is distributed in the both sides of clear opening to bandage.
9. cassette ceiling according to claim 8 construction method it is characterised in that:Fixing protector includes hollow
Cylinder and location-plate, location-plate is connected to one end of cylinder, is provided with locating slot on location-plate.
10. cassette ceiling according to claim 9 construction method it is characterised in that:Described locating slot is laterally to prolong
The groove stretched or described locating slot are formed by the convex tendon of two horizontal expansions.
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CN105908887A (en) * | 2016-06-24 | 2016-08-31 | 重庆道同建材有限公司 | Airbag core mold component cast hollow floor construction method |
CN106320732B (en) * | 2016-08-25 | 2018-12-04 | 重庆道同建材有限公司 | The reperforating method of air bag core model hole creating technology preformed hole |
CN110748060A (en) * | 2019-11-25 | 2020-02-04 | 中国建筑第四工程局有限公司 | Novel assembled hollow composite floor slab air bag core mold and using method thereof |
CN114033088B (en) * | 2021-11-19 | 2023-03-31 | 浙江恒宸建设集团有限公司 | Anti-floating construction method for cast-in-place concrete hollow floor |
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