CN103088947B - Cold bending thin wall lattice configuration steel-concrete folding heat preservation floor slab and production technology thereof - Google Patents
Cold bending thin wall lattice configuration steel-concrete folding heat preservation floor slab and production technology thereof Download PDFInfo
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- CN103088947B CN103088947B CN201310052447.9A CN201310052447A CN103088947B CN 103088947 B CN103088947 B CN 103088947B CN 201310052447 A CN201310052447 A CN 201310052447A CN 103088947 B CN103088947 B CN 103088947B
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Abstract
The invention discloses cold bending thin wall lattice configuration steel-concrete folding heat preservation floor slab and production technology thereof, this superimposed heat preservation floor slab comprises foam cement layer, layer of concrete and steel frame, it is characterized in that: the upper and lower part of foam cement layer is connected with layer of concrete, bottom layer of concrete is concrete layer, and top layer of concrete is that the concrete pavement of setting a roof beam in place with prefabricated frame builds all-in-one-piece cast-in-situ concrete layer simultaneously.Steel frame is made up of cold bending thin wall lattice configuration steel, reinforcing bar and fixture.The making step of cold bending thin wall lattice configuration steel-concrete folding heat preservation floor slab: 1, make steel frame in precast yard.2, concreting layer and foam cement layer.3, upper reinforcement is placed at the construction field (site).4, top layer of concrete is built.Advantage of the present invention is from heavy and light, good heat insulating, and intensity is high, and supporting capacity, globality, stability, shock resistance are good, has saved template and scaffold support, saving of labor, save time, material-saving, efficient, fast.
Description
Technical field
The invention belongs to technical field of building construction, particularly relate to cold bending thin wall lattice configuration steel-concrete folding heat preservation floor slab, a kind of build all-in-one-piece floor from heavy and light, good heat insulation, overlapping layers concrete and prefabricated frame concrete pavement of setting a roof beam in place simultaneously.
Background technology
Floor in current architecture configuration adopts cast-in-place integral formula concrete floor, prefabricated assembled concrete floor, steel reinforced concrete composite floor, reinforced concrete slab four kinds of floors mostly.In addition, cold bending thin wall lattice configuration steel and concrete composite floor plate also receive larger concern and research.
Although cast-in-place integral formula concrete floor globality and shock resistance good, sound insulation, heat insulation also waterproof, must build a large amount of templates and scaffold support in the construction stage, steel bar meter and arrange that overlap joint task is heavy.In whole work progress, from building template, scaffold to layout reinforcing bar, then to concreting, cost of labor is too high, and the duration is longer.
Prefabricated assembled concrete floor has easy construction, and component performance is stablized, little to surrounding environment influence, saves the plurality of advantages such as material.Compared with cast-in-place integral formula concrete floor, prefabricated concrete floor can save template, accelerates speed of application, reduction of erection time, but floor span is little, and load-carrying is light, and especially globality, shock resistance are poor, and flexibility is also not as Bars In Poured Concrete Slab.
Cold bending thin wall lattice configuration steel and concrete composite floor plate are by cold bending thin wall lattice configuration steel permutation and combination at a certain distance, connect with transition piece, connector or be welded into cold bending thin wall lattice configuration steel skeleton, construction formwork is fixed with at cold bending thin wall lattice configuration steel external surface, then concreting, makes curved thin wall lattice configuration steel skeleton, construction formwork and concrete form composite floor plate.Although composite floor plate possesses durable, energy-conservation, lightweight, the advantage such as efficient, quick, because it belongs to prefabricated units, still there is the problem of globality, shock resistance shortcoming.
Steel reinforced concrete composite floor is made up of jointly profiled sheet and the concrete slab poured into a mould thereon.After profiled sheet is fixed, then define a working platform in the construction stage at once, when concreting, profiled sheet then instead of traditional template.When then defining composite floor after hardening of concrete.Composite floor quick construction, convenience, duration be short, save reinforcing bar, doublely makees steel form, and cost is low, and intensity is high, effectively reduces each floor plate thickness, reduces floor height.But shaped steel and concrete adhesive property poor, also need artificial treatment could and concrete realize reliable connection, complex process, cost is high.
Reinforced concrete slab has prefabricated assembled and two-fold advantage that is cast-in-place concrete floor concurrently, and namely integral rigidity is good, anti-seismic performance is superior, save three materials, easy construction and can the reduction of erection time.The prestressed concrete overlapped slab wherein day by day come into one's own can also controlling distortion and crack effectively.But prestressed concrete laminated floor slab needs higher construction level, and domestic process matched therewith does not also reach this level.In addition, easily there is slippage in the superposed surfaces between concrete, makes levels concrete can not collaborative work, had a strong impact on bearing capacity and the use of floor.
Summary of the invention
Object of the present invention is exactly the shortcoming and defect existed for prior art, cold bending thin wall lattice configuration steel-concrete folding heat preservation floor slab and production technology thereof are provided, on the basis with cast-in-place concrete floor good integrity, what have again steel reinforced concrete composite floor concurrently doublely does template and the high feature of intensity, overcome again cold bending thin wall lattice configuration steel and concrete composite floor plate globality, the problem of shock resistance shortcoming, also solving reinforced concrete slab because of superposed surfaces slippage has a strong impact on the problem of bearing capacity, a large amount of template and scaffold support can be saved during construction, give full play to reinforcing bar, shaped steel, the feature of concrete and foam cement and the advantage of precasting process.
The object of the present invention is achieved like this: cold bending thin wall lattice configuration steel-concrete folding heat preservation floor slab, comprise foam cement layer, layer of concrete and steel frame, it is characterized in that: the upper and lower part of foam cement layer is connected with layer of concrete, bottom layer of concrete is concrete layer, and top layer of concrete is that the concrete pavement of setting a roof beam in place with prefabricated frame builds all-in-one-piece cast-in-situ concrete layer simultaneously.Steel frame is made up of cold bending thin wall lattice configuration steel, reinforcing bar and fixture.
Described steel frame is put at a certain distance by cold bending thin wall lattice configuration steel, puts reinforcing bar, reinforcing bar and cold bending thin wall lattice configuration steel are fixed with fixture along cold bending thin wall lattice configuration steel lower vertical direction; Put reinforcing bar on cold bending thin wall lattice configuration steel top, fix with fixture.
Described cold bending thin wall lattice configuration steel, its cross section or Z-type or U-shaped or C type, and have sizes specification.
The preparation method of cold bending thin wall lattice configuration steel-concrete folding heat preservation floor slab, is characterized in that: undertaken by following making step.
1, steel frame is made in precast yard.In precast yard, according to design size and the structural requirement of floor, cold bending thin wall lattice configuration steel is well placed at a certain distance, then reinforcing bar is put along cold bending thin wall lattice configuration steel lower vertical direction, with fixture by cold bending thin wall lattice configuration steel and reinforcing bar fixing formation steel frame; After regulating bottom layer of concrete template by design size, steel frame is put into bottom layer of concrete template, wherein reinforcing bar should in the bottom of bottom layer of concrete template.
2, concreting layer and foam cement layer.Build bottom layer of concrete to certain altitude, when layer of concrete reaches some strength, then insert foam cement to certain altitude, become foam cement layer; After cement layer consolidation to be foamed, namely collapsible die dispatches from the factory, and is transported to job site.
3, upper reinforcement is placed at the construction field (site).At the construction field (site), the cold bending thin wall lattice configuration steel stretching out cold bending thin wall lattice configuration steel-concrete folding plate is supported on precast frame beam forms; Cold bending thin wall lattice configuration steel top place reinforcing bar, fix with fixture, simultaneously to be supported on prefabricated frame set a roof beam in place on adjacent superimposed sheet between overlap joint reinforcing bar is set.
4, top layer of concrete is built.The concrete pavement that the top layer of concrete of cold bending thin wall lattice configuration steel-concrete folding heat preservation floor slab overlapping layers and prefabricated frame are set a roof beam in place is built integral simultaneously; After treating concrete curing, namely light gauge cold-formed steel shape-concrete folding heat preservation floor slab completes.
Compared with prior art, advantage of the present invention is: from heavy and light, good heat insulating, and compared with the concrete floor of same size, the nearly half of weight saving, thermal resistivity improves 11 times.Intensity is high, and supporting capacity, globality, stability, shock resistance are good, has saved template and scaffold support, saving of labor, save time, material-saving, efficient, fast.Both there is the globality of cast-in-place concrete floor, have again the high strength of steel reinforced concrete composite floor concurrently, overcome again the problem that cold bending thin wall lattice configuration steel and concrete composite floor plate globality, shock resistance are short of, the concrete pavement that the concrete of overlapping layers and prefabricated frame are set a roof beam in place is built integral simultaneously, more excellent than the supporting capacity of reinforced concrete slab, globality.
Accompanying drawing explanation
Cold bending thin wall lattice configuration steel-concrete folding heat preservation floor slab the sectional view in Fig. 1: C type cross section.
The cold bending thin wall lattice configuration steel in Fig. 2: C type cross section and bottom layer of concrete reinforcement placement figure.
Fig. 3: bottom layer of concrete builds figure.
Fig. 4: foam cement layer blank map.
Fig. 5: top layer of concrete reinforcement placement figure.
Fig. 6: top layer of concrete builds figure.
Fig. 7: overlap joint reinforcement placement figure.
In figure: 1, the cold bending thin wall lattice configuration steel 2 in C type cross section, reinforcing bar 3, cutting ferrule 4, layer of concrete 5, foam cement layer 6, bottom layer of concrete template 7, prefabricated frame set a roof beam in place 8, overlap joint reinforcing bar
Detailed description of the invention
For further describing the present invention, below in conjunction with the cold bending thin wall lattice configuration steel-concrete folding heat preservation floor slab embodiment in C type cross section and accompanying drawing, the invention will be further described.
As shown in Figure 1, cold bending thin wall lattice configuration steel of the present invention-concrete folding heat preservation floor slab, comprise foam cement layer 5, layer of concrete 4 and steel frame, it is characterized in that: the upper and lower part of foam cement layer 5 is connected with layer of concrete 4, bottom layer of concrete 4 is concrete layer, and top layer of concrete 4 is that the concrete pavement of setting a roof beam in place with prefabricated frame builds all-in-one-piece cast-in-situ concrete layer simultaneously.Steel frame is made up of the cold bending thin wall lattice configuration steel 1 in C type cross section, reinforcing bar 2 and cutting ferrule 3.
Described steel frame is put at a certain distance by the cold bending thin wall lattice configuration steel 1 in C type cross section, and reinforcing bar 2 is put in the cold bending thin wall lattice configuration steel 1 lower vertical direction along C type cross section, fixes with the cold bending thin wall lattice configuration steel 1 of cutting ferrule 3 by reinforcing bar 2 and C type cross section; Put reinforcing bar 2 on cold bending thin wall lattice configuration steel 1 top in C type cross section, fix with cutting ferrule 3.
The preparation method of the cold bending thin wall lattice configuration steel-concrete folding heat preservation floor slab in C type cross section, is characterized in that: undertaken by following making step.
The first step, makes steel frame in precast yard.
As shown in Figure 2, in precast yard, according to design size and the structural requirement of floor, the cold bending thin wall lattice configuration steel 1 in C type cross section is well placed at a certain distance, again the cold bending thin wall lattice configuration steel 1 lower vertical direction of reinforcing bar 2 along C type cross section is put, with cutting ferrule 3 by the cold bending thin wall lattice configuration steel 1 in C type cross section and the fixing formation steel frame of reinforcing bar 2; After regulating bottom layer of concrete template 6 by design size, steel frame is put into bottom layer of concrete template 6, wherein reinforcing bar 2 should in the bottom of bottom layer of concrete template 6.
Second step, concreting layer and foam cement layer.
As shown in Figure 3,4, build bottom layer of concrete 4 to certain altitude, when layer of concrete 4 reaches some strength, then insert foam cement to certain altitude, become foam cement layer 5; After cement layer 5 consolidation to be foamed, namely collapsible die dispatches from the factory, and is transported to job site.
3rd step, places upper reinforcement at the construction field (site).
As shown in Fig. 5,7, at the construction field (site), the cold bending thin wall lattice configuration steel 1 stretching out the C type cross section of the cold bending thin wall lattice configuration steel-reinforced concrete slab in C type cross section is supported on prefabricated frame and sets a roof beam in place in 7 templates; Placing reinforcing bar 2 on cold bending thin wall lattice configuration steel 1 top in C type cross section, fix with cutting ferrule 3, overlap joint reinforcing bar 8 being set to being supported between adjacent superimposed sheet that prefabricated frame sets a roof beam in place on 7 simultaneously.
4th step, builds top layer of concrete.As shown in Figure 6, the top layer of concrete 4 of the cold bending thin wall lattice configuration steel in C type cross section-concrete folding heat preservation floor slab overlapping layers and prefabricated frame are set a roof beam in place 7 concrete pavement build integral simultaneously; After treating concrete curing, namely light gauge cold-formed steel shape-concrete folding heat preservation floor slab completes.
Claims (3)
1. cold bending thin wall lattice configuration steel-concrete folding heat preservation floor slab, comprise foam cement layer (5), layer of concrete (4) and steel frame, it is characterized in that: the upper and lower part of foam cement layer (5) is connected with layer of concrete (4), bottom layer of concrete (4) is concrete layer, and top layer of concrete (4) is that the concrete pavement of setting a roof beam in place with prefabricated frame builds all-in-one-piece cast-in-situ concrete layer simultaneously; Steel frame is made up of cold bending thin wall lattice configuration steel (1), reinforcing bar (2) and fixture (3); Described steel frame is put at a certain distance by cold bending thin wall lattice configuration steel (1), puts reinforcing bar (2) along cold bending thin wall lattice configuration steel (1) lower vertical direction, reinforcing bar (2) and cold bending thin wall lattice configuration steel (1) fixed with fixture (3); Put reinforcing bar (2) on cold bending thin wall lattice configuration steel (1) top, fix with fixture (3).
2. cold bending thin wall lattice configuration steel according to claim 1-concrete folding heat preservation floor slab, is characterized in that: described cold bending thin wall lattice configuration steel, its cross section or Z-type or U-shaped or C type, and has sizes specification.
3. the preparation method of cold bending thin wall lattice configuration steel-concrete folding heat preservation floor slab, is characterized in that: carry out according to the following steps:
1), steel frame is made in precast yard: in precast yard, according to design size and the structural requirement of floor, cold bending thin wall lattice configuration steel (1) is well placed at a certain distance, again reinforcing bar (2) is put along cold bending thin wall lattice configuration steel (1) lower vertical direction, with fixture (3) by cold bending thin wall lattice configuration steel (1) and reinforcing bar (2) fixing formation steel frame; After regulating bottom layer of concrete template (6) by design size, steel frame is put into bottom layer of concrete template (6), wherein reinforcing bar (2) should in the bottom of bottom layer of concrete template (6);
2), concreting layer and foam cement layer: build bottom layer of concrete (4) to certain altitude, when layer of concrete (4) reaches some strength, then insert foam cement to certain altitude, become foam cement layer (5); After cement layer to be foamed (5) consolidation, namely collapsible die dispatches from the factory, and is transported to job site;
3), at the construction field (site) place upper reinforcement: at the construction field (site), the cold bending thin wall lattice configuration steel (1) stretching out cold bending thin wall lattice configuration steel-concrete folding plate is supported on prefabricated frame and sets a roof beam in place in (7) template; Placing reinforcing bar (2) on cold bending thin wall lattice configuration steel (1) top, fix with fixture (3), overlap joint reinforcing bar (8) being set to being supported between adjacent superimposed sheet that prefabricated frame sets a roof beam in place on (7) simultaneously;
4) top layer of concrete, is built: the concrete pavement of the top layer of concrete (4) of cold bending thin wall lattice configuration steel-concrete folding heat preservation floor slab overlapping layers and prefabricated frame are set a roof beam in place (7) is built integral simultaneously; After treating concrete curing, namely light gauge cold-formed steel shape-concrete folding heat preservation floor slab completes.
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| CN106836627A (en) * | 2017-03-05 | 2017-06-13 | 北京工业大学 | A kind of prefabricated lightweight floor |
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| CN110565871A (en) * | 2019-09-20 | 2019-12-13 | 北京中清恒业科技开发有限公司 | assembled heat insulation structure integrated steel keel shear wall and construction method thereof |
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| CN113863487B (en) * | 2021-08-26 | 2022-11-29 | 江苏华源建筑设计研究院股份有限公司 | Construction process for connecting joints of beam-end steel concrete combined notched beam and primary and secondary beams |
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