CN107083817A - A kind of cast-in-place concrete bamboo core floor construction and its construction technology - Google Patents

A kind of cast-in-place concrete bamboo core floor construction and its construction technology Download PDF

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Publication number
CN107083817A
CN107083817A CN201710467071.6A CN201710467071A CN107083817A CN 107083817 A CN107083817 A CN 107083817A CN 201710467071 A CN201710467071 A CN 201710467071A CN 107083817 A CN107083817 A CN 107083817A
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CN
China
Prior art keywords
core
concrete
floating
bamboo
cast
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CN201710467071.6A
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Chinese (zh)
Inventor
谢剑波
韦义理
辛红
龙绍章
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China Huashi Enterprises Co Ltd
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China Huashi Enterprises Co Ltd
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Priority to CN201710467071.6A priority Critical patent/CN107083817A/en
Publication of CN107083817A publication Critical patent/CN107083817A/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/48Special adaptations of floors for incorporating ducts, e.g. for heating or ventilating
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C1/00Building elements of block or other shape for the construction of parts of buildings
    • E04C1/24Elements for building-up floors, ceilings, roofs, arches, or beams
    • E04C1/34Elements for building-up floors, ceilings, roofs, arches, or beams designed for use as filling elements

Abstract

The invention discloses a kind of cast-in-place concrete bamboo core floor construction and its construction technology, template is on formwork system in the structure, laying positioning Concrete seat pad and bamboo core core above template, anti-floating beading and reinforcement are respectively equipped with above and below core, plate bottom anti-floating iron wire upper and lower ends connect reinforcement and formwork system respectively, anti-floating beading is fixed by anti-floating iron wire with reinforcement drawknot, casting concrete between core;This method includes, formwork system and template construction, positioning marking, mounting rail, plate bottom, girt strip reinforcing bar, water power preheating embedding line lay, install the step such as bamboo core core and anti-floating anchor measure, plate face reinforcing bar, casting concrete and maintenance.The present invention improves the construction quality of concreting, has saved labour cost and fee of material, and overall space works well.

Description

A kind of cast-in-place concrete bamboo core floor construction and its construction technology
Technical field
The present invention relates to the realm of building construction, specifically, be related to a kind of cast-in-place concrete bamboo core floor construction and its Construction technology.
Background technology
In modern architecture work progress, floor, basement roof are constructed frequently with the structure of embedding beam bamboo core floor, GBF bamboo core built-in moulds are to be equipped with pore-forming in the cast-in-situ concrete hollow structure that glass fiber reticular cloth enhancing is made with inorganic coagulation material With non-core pulling built-in mould product, the interior material structure for forming uniform artificial hole of the concrete of GBF cast-in-place concrete bamboo core floors Part, have mitigation weight concrete effect.
And existing GBF cast-in-place concretes bamboo core floor slab construction difficulty is big, internal model peace is frequently accompanied by work progress Packing quality is bad, concrete surface poor flatness, concrete interface size are poor, the adjacent two plate surfaces difference of height of template is poor and The defects such as template surface poor flatness.And how to overcome drawbacks described above, construction quality is controlled, as GBF cast-in-place concrete bamboo cores A great problem during floor slab construction.
The content of the invention
In order to overcome the shortcomings of existing technology, the present invention provides a kind of cast-in-place concrete bamboo core floor construction and its construction Technique.
Technical solution of the present invention is as described below:
A kind of cast-in-place concrete bamboo core floor construction, it is characterised in that including formwork system and template, the template is located at described On formwork system, uniformly it is equipped with above the template above some positioning Concrete seat pads, the positioning Concrete seat pad and is provided with bamboo core core Some parallel anti-floating beadings are provided with above mould, the core, the lower section of the core is provided with some reinforcements, plate bottom anti-floating The upper end of iron wire and the plate bottom epithelium bar connecting of the reinforcement, the lower end of the plate bottom anti-floating iron wire pass through the template It is fixedly connected with the formwork system, after the core is fixed, the anti-floating beading passes through anti-floating iron wire and plate bottom steel Skin reinforcing bar drawknot is fixed under the plate of muscle, and concrete has been poured in the space between the core.
According to the present invention of such scheme, it is characterised in that the anti-floating beading is vertical with a side of the core.
Further, the core is rectangular parallelepiped structure, and the anti-floating beading is vertical with the long side of the core.
According to the present invention of such scheme, it is characterised in that the bottom of every piece of core is provided with 4 positioning concrete pads Block, the positioning Concrete seat pad is distributed at the corner of the core.
According to the present invention of such scheme, it is characterised in that carried out between adjacent two pieces of cores by steel bar horse-shaped bench Positioning.
According to the present invention of such scheme, it is characterised in that the tie point position of the anti-floating iron wire and the anti-floating beading At the longitudinal rib of the core.
Further, drag hook is provided with the middle of the girt strip of the longitudinal rib, the drag hook is welded to connect with the anti-floating beading.
Further, the spacing of the core and the drag hook is 50-70mm.
According to the present invention of such scheme, it is characterised in that the bottom of the core is provided with the built-in pipe of water power spool.
According to the present invention of such scheme, it is characterised in that the spacing between the core and the built-in pipe is not less than 50mm。
A kind of construction technology of cast-in-place concrete bamboo core floor construction, it is characterised in that comprise the following steps,
Step 1, surveying setting-out:According to horizontal control network before construction, floor absolute altitude control line is delivered on post reinforcing bar, is axis Pilot measurement, formwork system are prepared;
Step 2, formwork system and template construction;
Step 3, positioning marking:According to construction drawing, girt strip, core putting position line and pre-buried are drawn on this layer of slab form Line pipe box position;
Step 4, mounting rail, plate bottom, girt strip reinforcing bar;
Step 5, water power preheating embedding line are laid;
Step 6, installation bamboo core core and anti-floating anchor measure;
Step 7, plate face reinforcing bar;
Step 8, casting concrete;
Step 9, maintenance:Smeared and flattened with wooden float before concrete final set, and in carrying out water seasoning after 12 hours, covered simultaneously Plastic sheeting;
Step 10, form removal;
Step 11, inspection, examination.
According to the present invention of such scheme, it is characterised in that in the step 2, the particular order of construction is:Set up support → the big carinula of transverse and longitudinal → adjustment plate hypodermis absolute altitude and arch camber → laying roof plate template → inspection template epithelium absolute altitude are installed, put down It is whole spend → do preliminary examination.
According to the present invention of such scheme, it is characterised in that in the step 4, specifically include:
(1)Bar connecting is connected using reinforced bar straight thread in colligation framework concealed beam reinforcing bar first, framework concealed beam, by plate lower rebar Stretch into concealed beam;
(2)Bamboo core superstructure framework concealed beam reinforcing bar, reinforcement and intercostal reinforcement installation carry out initial test after finishing;
(3)Plate, abdominal rib, beam steel are installed in the same direction with layer arrangement;
(4)The additional waist muscle of beam core space and horizontal hoop of framework concealed beam core space, cap side direction horizontal stirrup, cap top and the bottom A word drag hook reinforcing bar between cage bar;
(5)The encryption of end of frame girder stirrup proceeds by construction from post side.
Further, framework beam-ends hoop reinforcement length takes 2.5 times of concealed beam deck-moldings, 2 times of deck-moldings (bright beam) and is not less than 500mm;
According to the present invention of such scheme, it is characterised in that in the step 6, specifically include:
(1)According to bamboo core core typesetting figure constructed in template line setting and install bamboo core core;
(2)Adjustment uses reinforcement bar support bench or concrete pad pad to designed elevation to line, and by core, and steel is used between adjacent bamboo core Muscle split heads or flitch positioning;
(3)To the local filling with light material that bamboo core is damaged, closure repairing is carried out with adhesive tape or cement mortar at cut;
(4)Drawknot twice is carried out, first plate bottom anti-floating iron wire passes through after template, plate bottom epithelium reinforcing bar and formwork system drawknot are consolidated It is fixed, install after bamboo core, anti-floating iron wire fixes skin reinforcing bar under plate with anti-floating beading drawknot;
(5)Drag hook is provided with girt strip position, drag hook is welded to connect with anti-floating beading.
According to the present invention of such scheme, it is characterised in that in the step 8, specifically include:
(1)Core is watered moistening;
(2)Built on stilts installation, laying auxiliary equipment on core, the horizontal tube of auxiliary equipment including pump concrete, steering knuckle, Cloth material mouth bearing or the passage for transporting concrete materials dolly;
(3)In casting concrete, repairing in time, adjustment core and reinforcing bar, while carrying out shield mould to template;
(4)The longitudinal axis unidirectionally carries out pouring for concrete, and the slump of concrete is not less than 180mm, and cloth is with shocking same stepping OK;
(5)After the completion of floor concrete casting, top formwork system, formwork system vertical rod are re-layed after concrete reaches final set Under add backing plate, and anti-impact carried out to backing plate cut checking computations.
Further, in the step 8, concrete is not more than the 1/ of cassette ceiling rib width with the maximum particle diameter of coarse aggregate 2 and the 1/2 of cavity bottom thickness of slab, and no more than 25mm.
According to the present invention of such scheme, it is characterised in that the step(10)In, cast-in-place concrete bamboo core floor bottom mould Striking time be:
During span of slab≤8m, superstructure strength grade of concrete reaches the 75% of design strength grade during bed die form removal;
When superstructure span>During 8m, superstructure strength grade of concrete reaches the 100% of design strength grade during bed die form removal;
During the bed die form removal of cantilevered structure, superstructure strength grade of concrete reaches the 100% of design strength grade;
The cast-in-place concrete bamboo core hollow floor bed die for having post-tensioned prestressing treats dismounting after the completion of prestressed stretch-draw.
According to the present invention of such scheme, its advantage is, the present invention is by bamboo core floor construction and its construction The improvement of method, improves the construction quality of concreting;Simultaneously, it is to avoid do over again, substantial amounts of maintenance and internal model are damaged more Change and saved labour cost and fee of material;Construction speed is accelerated in close construction, when virtually reducing the use of machinery Between;And increased using basement solid space after cast-in-place bamboo core plate new technology, overall space works well.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 be Fig. 1 in A-A to sectional view.
Fig. 3 is the sectional view of B-B direction in Fig. 1.
In figure, 10, core;21st, anti-floating beading;22nd, reinforcement;23rd, anti-floating iron wire;24th, plate bottom anti-floating iron wire; 30th, Concrete seat pad is positioned;40th, template;50th, formwork system.
Embodiment
Below in conjunction with the accompanying drawings and the present invention is further described embodiment:
As Figure 1-3, a kind of cast-in-place concrete bamboo core floor construction, including formwork system 50 and template 40, template 40 is located at On formwork system 50, the top of template 40 is uniformly equipped with some positioning Concrete seat pads 30, and the top of positioning Concrete seat pad 30 is provided with bamboo core core Mould 10, the top of core 10 is provided with some parallel anti-floating beadings 21, and the lower section of core 10 is provided with some reinforcements 22, and plate bottom resists The upper end of floating iron wire 24 and the plate bottom epithelium bar connecting of reinforcement 22, the lower end of plate bottom anti-floating iron wire 24 through template 40 with Formwork system 50 is fixedly connected, after core 10 is fixed, the plate bottom that anti-floating beading 21 passes through anti-floating iron wire 23 and reinforcement 22 Hypodermis reinforcing bar drawknot is fixed, and concrete has been poured in the space between core 10.
Wherein, first plate bottom anti-floating iron 24 is passed through after template 40, plate bottom epithelium reinforcing bar is consolidated with the drawknot of formwork system 50 It is fixed, install after bamboo core core 10, anti-floating iron wire 23 fixes skin reinforcing bar under plate with the drawknot of anti-floating beading 21, makes formwork system 50th, the anti-floating system of core 10, anti-floating beading 21 and one entirety of formation of reinforcement 22, interacts, mutually restricts, jointly Resist buoyancy of the concrete to core 10.
Anti-floating beading 21 is vertical with a side of core 10.In the present embodiment, core 10 is rectangular parallelepiped structure, anti-floating pressure Muscle 21 is vertical with the long side of core 10.
The bottom of every piece of core 10 is distributed at the corner of core 10 provided with 4 positioning Concrete seat pads 30, positioning Concrete seat pad 30, Disperse equilateral arrangement so that the anti-floating power of bamboo pellet is uniformly distributed.
Positioned between adjacent two pieces of cores 10 by steel bar horse-shaped bench, it is ensured that in length and breadth rib away from.
The tie point of anti-floating iron wire 23 and anti-floating beading 21 is located at the longitudinal rib of core 10, it is preferred that core 10 is with resisting Floating iron wire 23(Girt strip drag hook)Spacing be 50-70mm, make the both sides almost symmetry of core 10, it is ensured that the stress of core 10 evenly, Increase its stability.Drag hook is provided with the middle of the girt strip of longitudinal rib, drag hook is welded to connect with anti-floating beading 21, enhancing bamboo core plate is overall Anti-floating ability.
The bottom of core 10 is provided with the built-in pipe of water power spool.Spacing between core 10 and built-in pipe is not less than 50mm, Reduce the weakening to floor section.
Because internal model is between bottom and surfacing steel bar, so cross-brace steel pipe under bottom layer of the reinforcing steel and template is used iron Silk is connected and surfacing steel bar is drawn solid steady according to the tension rib of design drawing again, prevents floor bottom mould from locally floating and reinforcing bar position Move, also ensure that the position of internal model is accurate.
A kind of construction technology of cast-in-place concrete bamboo core floor construction, comprises the following steps,
First, surveying setting-out.
According to horizontal control network before construction, floor absolute altitude control line is delivered on post reinforcing bar, is axis pilot measurement, support branch Mould is prepared.
2nd, support for shuttering and template construction.
Particular order is:Set up the big carinula of support → installation transverse and longitudinal → adjustment plate hypodermis absolute altitude and arch camber → laying top plate Template → inspection template epithelium absolute altitude, flatness → does preliminary examination.
1st, it is specific according to abdominal rib width, hole top and the cast-in-place plate thickness of bottom hole, the width of concealed beam and plane between superstructure thickness, hole Position calculates dead load value, and takes into full account on superstructure after construction loads, progress template carrying and stability Calculation, design template, Keel and support.
2nd, keel and the arrangement of support consider the requirement as bamboo core anti-floating grappling.Template carries out arch camber by design requirement, When design does not make concrete regulation, bi-directionally or uni-directionally arch camber is carried out by 1 ‰~3 ‰ pairs of templates.Wherein 4m~8m spans template rises Arch presses 3 ‰ by 2 ‰, 12m by 1 ‰, 8m~12m span templates arch camber with the arch camber of upper span template;
3rd, model sheetinstallat complete and it is qualified by inspection after, make unwrapping wire positioning to concealed beam, bamboo core, set aside pre-embedded pipe, hole etc., verification nothing Turn sequence construction after by mistake.
3rd, positioning marking.
According to construction drawing before construction, girt strip, bamboo core putting position line and built-in pipe are drawn on this layer of slab form Spool box position.
4th, mounting rail, plate bottom, girt strip reinforcing bar.
1st, bar connecting is connected using reinforced bar straight thread in colligation framework concealed beam reinforcing bar first, framework concealed beam.Plate bottom steel Muscle stretches into plate lower rebar in concealed beam because different from framework concealed beam protective layer thickness, and built-in length meets design and specification It is required that;
2nd, bamboo core superstructure framework concealed beam(Wide-flat beam)Reinforcing bar, reinforcement and intercostal reinforcement installation are finished, and initial test are carried out, in bamboo core Bottom location measure completes and confirms that bamboo core installation can be carried out rearward.
3rd, plate, abdominal rib, beam steel are installed in the same direction with layer arrangement, it is to avoid different reinforcing bars overlapping superelevation repeatedly.Framework concealed beam(It is wide Flat beam)Width is more than the wide situation of post, concealed beam core space, the reinforcement constitution requirement of cap by design drawing requirement processing;
4th, to framework concealed beam(Wide-flat beam)Core space(In length and breadth two to wide-flat beam intersect overlapping part)The additional waist of beam core space Word drag hook reinforcing bar between muscle and horizontal hoop, cap side direction horizontal stirrup, cap top and the bottom cage bar etc. is constructed.
5th, the encryption of end of frame girder stirrup is since post side, when design does not make concrete regulation, the encryption of framework beam-ends stirrup Section length takes 2.5 times of deck-moldings (concealed beam), 2 times of deck-moldings (bright beam) and not less than 500.
6th, framework concealed beam is indulged muscle and passed through in the case where ensureing distance of reinforcing bar >=1.5d, and >=30 (glutens), 25 (bottom muscle) Post, and at least more than 60% pass through post.
5th, water power preheating embedding line is laid.
After the completion of bottom layer of the reinforcing steel colligation, you can carry out water power preheating embedding line and lay.The reserved water conduit box of bamboo core bottom Pre-buried by unwrapping wire position, to reduce its weakening to superstructure section, built-in pipe line box is preferably arranged in intercostal position, built-in pipe line box Junction nodes be preferably arranged in the bamboo core product for replacing main specifications between bamboo core hollow floor at rib using auxiliary equipment if necessary, Concede pipeline position.
The 6th, bamboo core and anti-floating anchor measure are installed.
1st, according to bamboo core typesetting figure constructed in template line setting and install bamboo core.
2nd, adjustment is to line, it is ensured that the spacing between bamboo core and between bamboo core and concealed beam, wall, post, and bamboo core is used into reinforcement bar support Stool or concrete pad pad are first once checked adjustment to designed elevation before paving applies bamboo core, to ensure lower concrete layer Thickness.Positioned between adjacent bamboo core using steel bar horse-shaped bench or flitch, it is ensured that rib using flitch away from being fixed, pour concrete in length and breadth Take out in time afterwards.
3rd, with adhesive tape or cement mortar at the light material such as place filling gunnysack, the polybag damaged to bamboo core, cut Closure repairing is carried out, to ensure shape and the sealing of bamboo core, prevents that concrete is poured into bamboo core cavity when concrete from pouring into a mould.
4th, bamboo core anti-floating anchoring lacing wire(Or wire drawing)The concrete buoyancy according to suffered by bamboo core such as specification, position, spacing it is big Small, execution conditions etc., carry out drawknot twice:First plate bottom anti-floating iron wire is passed through after template, and plate bottom epithelium reinforcing bar and support for shuttering are drawn Knot is fixed, and is installed after bamboo core, anti-floating iron wire fixes skin reinforcing bar under plate with anti-floating beading drawknot.
5th, girt strip position is provided with drag hook, and drag hook is welded to connect with anti-floating beading, strengthens bamboo core plate whole anti-uplift ability.
7th, plate face reinforcing bar.
1st, when being not known in specification, the larger muscle of the vertical muscle of plate puts outer layer, less to put internal layer.The elongated steel in plate top Muscle and negative reinforcement by the same direction with layer in the way of arrange, to prevent the multiple-layer overlapped superelevation of plate upper reinforcement, cause floorslab concrete to surpass It is thick.
2nd, after superstructure reinforcement installation is finished, and to the qualified rear progress concrete pouring construction of reinforced bar engineering concealment acceptance.
3rd, floor is provided with the wide post-cast strips of 800mm, pacifies 1000 × 500 × 200mm in the width range of post-cast strip supporting Core, the elongated@200 of setting HRB400E φ 8 in the girt strip of bamboo core both sides(2)Stirrup, both sides respectively place a 3cm × 2cm Water-swelling rubber water bar.Plate muscle 100% in post-cast strip disconnects the overlap joint that staggers, and processing method is often used in post-cast strip.
8th, casting concrete.
1st, in order to reduce the continuation water absorbing capacity of bamboo core, it is to avoid the quality of influence structural concrete, before casting concrete Bamboo core is watered moistening.
2nd, the horizontal tube of pump concrete, steering knuckle, cloth material mouth bearing or the passage for transporting concrete materials dolly, Built on stilts installation, laying on bamboo core;
3rd, during casting concrete, appropriate carpenter and bar bender is arranged, repairs in time with operation is poured, adjust bamboo core and reinforcing bar. And arrange carpenter to carry out shield mould to support for shuttering;
4th, concrete is poured, and is preferably unidirectionally carried out along the longitudinal axis;The slump of concrete is not less than 180mm, and cloth is same with shocking Step is carried out, to ensure that it is full that bamboo core bottom is filled with, no accumulation air bag, bubble;
5th, the maximum particle diameter of concrete coarse aggregate is determined according to the specific requirement of interior modular form and concrete placing installation, unsuitable More than the 1/2 of 1/2 and cavity bottom thickness of slab of cassette ceiling rib width, and it cannot be greater than 25mm;
When the 6th, pouring bamboo core concrete hollow floor, using small-sized insertion electromagnetic shaker(30mm)Shock;Using 50 insertion electromagnetic shakers It must be vibrated from intercostal quick insertion to floor slab bottoms in length and breadth, the spacing that vibrating spear vibrates a little in rib no more than 500mm, every point Vibrating time is 15s~20s, is filled intercostal with concrete full, and not upper general bubble is advisable;After having vibrated, slowly propose to shake Electromagnetic shaker must not directly be pressed bamboo core and be shocked by tamper.Vibrated if coordinating using plate vibrator, using 1500W small work( Rate vibrator;
7th, after the completion of floor concrete casting, top support for shuttering is laid again after concrete reaches final set, support for shuttering vertical rod Under add backing plate, and anti-impact carried out to backing plate cut checking computations;
8th, thickness of slab exceedes 450mm superstructure, is carried out by several times during concreting.First time cloth is highly no more than superstructure thickness 3/5ths, after second of cloth is carried out after vibration compacting again;
9th, in casting concrete, such as the excessive or breakage of live bamboo core deformation, the measures such as branch guard or filling are used in time, To resist pressure of the concrete to casing, in casing not entering concrete is defined.
9th, conserve.
Pour and note carrying out meticulous maintenance measure to concrete after concrete, ftractureed to prevent concrete.Pressure is smeared before concrete final set with wooden float It is smooth, special messenger's water seasoning is sent after 12 hours, timely plastic covering film, curing time is no less than 14 days.
Tenth, form removal.
The striking time of GBF cast-in-place concrete bamboo core floor bottom moulds is:During floor span≤8m, superstructure is mixed during bed die form removal Solidifying soil strength grade reaches the 75% of design strength grade;When superstructure span>During 8m, superstructure concrete strength etc. during bed die form removal Level reaches the 100% of design strength grade;For cantilevered structure, superstructure strength grade of concrete reaches that design is strong during bed die form removal Spend the 100% of grade.Treat that prestressed stretch-draw completes rear for the cast-in-place concrete bamboo core hollow floor bed die for having post-tensioned prestressing It is dismountable.
11, check, check and accept.
After form removable, Surface Quality of Concrete and dimensional discrepancy are checked according to design requirement and codes and standards, Check and accept.
The anti-floating ability of bamboo pellet is significantly improved in the present invention, is achieved in the negative one floor plate casting process of underground good Effect, flooring absolute altitude is accurate, controls in deviation allowed band;Pass through the control to concrete quality itself and casting process System, it is ensured that pour rear bamboo core floor plate bottom without cavity, surface smoothness is controlled within specification tolerance;Floor concrete Flatness quality improves a lot, and pours and smashes process massless accident.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted, And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Exemplary description has been carried out to patent of the present invention above in conjunction with accompanying drawing, it is clear that the realization of patent of the present invention not by The limitation of aforesaid way, if the various improvement that the method design of patent of the present invention and technical scheme are carried out are employed, or without The design of patent of the present invention and technical scheme are directly applied to other occasions by improvement, within the scope of the present invention.

Claims (10)

1. a kind of cast-in-place concrete bamboo core floor construction, it is characterised in that including formwork system and template, the template is located at institute State on formwork system, be uniformly equipped with above the template above some positioning Concrete seat pads, the positioning Concrete seat pad and be provided with bamboo core Some parallel anti-floating beadings are provided with above core, the core, the lower section of the core is provided with some reinforcements, and plate bottom resists The upper end of floating iron wire and the plate bottom epithelium bar connecting of the reinforcement, the lower end of the plate bottom anti-floating iron wire pass through the mould Plate is fixedly connected with the formwork system, after the core is fixed, and the anti-floating beading passes through anti-floating iron wire and the plate bottom Skin reinforcing bar drawknot is fixed under the plate of reinforcing bar, and concrete has been poured in the space between the core.
2. cast-in-place concrete bamboo core floor construction according to claim 1, it is characterised in that the anti-floating beading with it is described One side of core is vertical.
3. cast-in-place concrete bamboo core floor construction according to claim 1, it is characterised in that the anti-floating iron wire with it is described The tie point of anti-floating beading is located at the longitudinal rib of the core.
4. cast-in-place concrete bamboo core floor construction according to claim 3, it is characterised in that in the girt strip of the longitudinal rib Between be provided with drag hook, the drag hook is welded to connect with the anti-floating beading.
5. cast-in-place concrete bamboo core floor construction according to claim 1, it is characterised in that the bottom of the core is provided with The built-in pipe of water power spool.
6. a kind of construction technology of cast-in-place concrete bamboo core floor construction, it is characterised in that comprise the following steps,
Step 1, surveying setting-out:According to horizontal control network before construction, floor absolute altitude control line is delivered on post reinforcing bar, is axis Pilot measurement, formwork system are prepared;
Step 2, formwork system and template construction;
Step 3, positioning marking:According to construction drawing, girt strip, core putting position line and pre-buried are drawn on this layer of slab form Line pipe box position;
Step 4, mounting rail, plate bottom, girt strip reinforcing bar;
Step 5, water power preheating embedding line are laid;
Step 6, installation bamboo core core and anti-floating anchor measure;
Step 7, plate face reinforcing bar;
Step 8, casting concrete;
Step 9, maintenance:Smeared and flattened with wooden float before concrete final set, and in carrying out water seasoning after 12 hours, covered simultaneously Plastic sheeting;
Step 10, form removal;
Step 11, inspection, examination.
7. the construction technology of cast-in-place concrete bamboo core floor construction according to claim 6, it is characterised in that in the step In rapid 4, specifically include:
(1)Bar connecting is connected using reinforced bar straight thread in colligation framework concealed beam reinforcing bar first, framework concealed beam, by plate lower rebar Stretch into concealed beam;
(2)Bamboo core superstructure framework concealed beam reinforcing bar, reinforcement and intercostal reinforcement installation carry out initial test after finishing;
(3)Plate, abdominal rib, beam steel are installed in the same direction with layer arrangement;
(4)The additional waist muscle of beam core space and horizontal hoop of framework concealed beam core space, cap side direction horizontal stirrup, cap top and the bottom A word drag hook reinforcing bar between cage bar;
(5)The encryption of end of frame girder stirrup proceeds by construction from post side.
8. the construction technology of cast-in-place concrete bamboo core floor construction according to claim 6, it is characterised in that in the step In rapid 6, specifically include:
(1)According to bamboo core core typesetting figure constructed in template line setting and install bamboo core core;
(2)Adjustment uses reinforcement bar support bench or concrete pad pad to designed elevation to line, and by core, and steel is used between adjacent bamboo core Muscle split heads or flitch positioning;
(3)To the local filling with light material that bamboo core is damaged, closure repairing is carried out with adhesive tape or cement mortar at cut;
(4)Drawknot twice is carried out, first plate bottom anti-floating iron wire passes through after template, plate bottom epithelium reinforcing bar and formwork system drawknot are consolidated It is fixed, install after bamboo core, anti-floating iron wire fixes skin reinforcing bar under plate with anti-floating beading drawknot;
(5)Drag hook is provided with girt strip position, drag hook is welded to connect with anti-floating beading.
9. the construction technology of cast-in-place concrete bamboo core floor construction according to claim 6, it is characterised in that in the step In rapid 8, specifically include:
(1)Core is watered moistening;
(2)Built on stilts installation, laying auxiliary equipment on core, the horizontal tube of auxiliary equipment including pump concrete, steering knuckle, Cloth material mouth bearing or the passage for transporting concrete materials dolly;
(3)In casting concrete, repairing in time, adjustment core and reinforcing bar, while carrying out shield mould to template;
(4)The longitudinal axis unidirectionally carries out pouring for concrete, and the slump of concrete is not less than 180mm, and cloth is with shocking same stepping OK;
(5)After the completion of floor concrete casting, top formwork system, formwork system vertical rod are re-layed after concrete reaches final set Under add backing plate, and anti-impact carried out to backing plate cut checking computations.
10. the construction technology of cast-in-place concrete bamboo core floor construction according to claim 9, it is characterised in that described In step 8, concrete is not more than the 1/2 of 1/2 and cavity bottom thickness of slab of cassette ceiling rib width with the maximum particle diameter of coarse aggregate, and No more than 25mm.
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107587637A (en) * 2017-08-22 2018-01-16 广州协安建设工程有限公司 The box internal model hollow floor of air-entrained concrete building block and its construction method
CN107956265A (en) * 2017-12-28 2018-04-24 中冶天工集团天津有限公司 Formwork control of horizontal displacement device and method in a kind of cassette ceiling
CN108179833A (en) * 2018-01-11 2018-06-19 王泽颖 A kind of hollow floor casting method based on tube filler
CN108756037A (en) * 2018-06-01 2018-11-06 平煤神马建工集团有限公司 A kind of mounting structure of the whole anti-floating of GBF square chests cassette ceiling
CN111042411A (en) * 2018-10-15 2020-04-21 重庆河邦建材有限公司 Control method for water content of hollow gypsum mold box and determination method for water absorption
CN111044715A (en) * 2018-10-15 2020-04-21 重庆河邦建材有限公司 Destructive test method for hollow floor gypsum filling box
CN111593888A (en) * 2020-06-05 2020-08-28 中电建路桥集团有限公司 Installation control system and installation construction method for cast-in-situ concrete hollow floor system combined plastic mold box
CN111622405A (en) * 2020-05-22 2020-09-04 河南中烟工业有限责任公司 Preparation method of hollow concrete
CN113175144A (en) * 2021-04-06 2021-07-27 湖北省工业建筑集团有限公司 Construction method of GBF high-strength alloy thin-wall square-box hollow floor
CN114635564A (en) * 2022-01-10 2022-06-17 中铁二十一局集团第四工程有限公司 Large-span slow-bonding prestressed hollow floor core mold construction method
CN115030316A (en) * 2022-05-09 2022-09-09 中铁十九局集团第五工程有限公司 Floor structure
CN115419202A (en) * 2022-10-09 2022-12-02 武汉鸣辰建设集团有限公司 Construction method of assembled core mould cast-in-place concrete ribbed floor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103806656A (en) * 2012-11-06 2014-05-21 南通卓强建设工程有限公司 Construction method of cast-in-place concrete flat slab built-in thin-wall hollow box body
CN204266590U (en) * 2014-11-19 2015-04-15 大同泰瑞集团建设有限公司 Sump, hoistway formwork bed die anti-floating system
CN204645423U (en) * 2015-02-16 2015-09-16 中建城市建设发展有限公司 Cassette ceiling high intensity thinner tube hollow section anti-floating stopping means and prepare instrument
CN206233437U (en) * 2016-11-24 2017-06-09 中国建筑第八工程局有限公司 The cassette ceiling formed using core float Structure
CN206917031U (en) * 2017-06-20 2018-01-23 中国华西企业有限公司 A kind of cast-in-place concrete bamboo core floor construction

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103806656A (en) * 2012-11-06 2014-05-21 南通卓强建设工程有限公司 Construction method of cast-in-place concrete flat slab built-in thin-wall hollow box body
CN204266590U (en) * 2014-11-19 2015-04-15 大同泰瑞集团建设有限公司 Sump, hoistway formwork bed die anti-floating system
CN204645423U (en) * 2015-02-16 2015-09-16 中建城市建设发展有限公司 Cassette ceiling high intensity thinner tube hollow section anti-floating stopping means and prepare instrument
CN206233437U (en) * 2016-11-24 2017-06-09 中国建筑第八工程局有限公司 The cassette ceiling formed using core float Structure
CN206917031U (en) * 2017-06-20 2018-01-23 中国华西企业有限公司 A kind of cast-in-place concrete bamboo core floor construction

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107587637A (en) * 2017-08-22 2018-01-16 广州协安建设工程有限公司 The box internal model hollow floor of air-entrained concrete building block and its construction method
CN107956265A (en) * 2017-12-28 2018-04-24 中冶天工集团天津有限公司 Formwork control of horizontal displacement device and method in a kind of cassette ceiling
CN108179833A (en) * 2018-01-11 2018-06-19 王泽颖 A kind of hollow floor casting method based on tube filler
CN108756037A (en) * 2018-06-01 2018-11-06 平煤神马建工集团有限公司 A kind of mounting structure of the whole anti-floating of GBF square chests cassette ceiling
CN111044715B (en) * 2018-10-15 2021-11-30 重庆河邦建材有限公司 Destructive test method for hollow floor gypsum filling box
CN111044715A (en) * 2018-10-15 2020-04-21 重庆河邦建材有限公司 Destructive test method for hollow floor gypsum filling box
CN111042411A (en) * 2018-10-15 2020-04-21 重庆河邦建材有限公司 Control method for water content of hollow gypsum mold box and determination method for water absorption
CN111622405A (en) * 2020-05-22 2020-09-04 河南中烟工业有限责任公司 Preparation method of hollow concrete
CN111593888A (en) * 2020-06-05 2020-08-28 中电建路桥集团有限公司 Installation control system and installation construction method for cast-in-situ concrete hollow floor system combined plastic mold box
CN113175144A (en) * 2021-04-06 2021-07-27 湖北省工业建筑集团有限公司 Construction method of GBF high-strength alloy thin-wall square-box hollow floor
CN114635564A (en) * 2022-01-10 2022-06-17 中铁二十一局集团第四工程有限公司 Large-span slow-bonding prestressed hollow floor core mold construction method
CN115030316A (en) * 2022-05-09 2022-09-09 中铁十九局集团第五工程有限公司 Floor structure
CN115419202A (en) * 2022-10-09 2022-12-02 武汉鸣辰建设集团有限公司 Construction method of assembled core mould cast-in-place concrete ribbed floor

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