CN2522492Y - Board-rib combined steel reinforced concrete hollow floor - Google Patents
Board-rib combined steel reinforced concrete hollow floor Download PDFInfo
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- CN2522492Y CN2522492Y CN 02202707 CN02202707U CN2522492Y CN 2522492 Y CN2522492 Y CN 2522492Y CN 02202707 CN02202707 CN 02202707 CN 02202707 U CN02202707 U CN 02202707U CN 2522492 Y CN2522492 Y CN 2522492Y
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- rib
- formwork
- prefabricated
- prefabricated plate
- plate
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 22
- 239000010959 steel Substances 0.000 title claims abstract description 22
- 239000011150 reinforced concrete Substances 0.000 title abstract description 3
- 239000004567 concrete Substances 0.000 claims abstract description 30
- 238000009415 formwork Methods 0.000 claims description 56
- 230000003014 reinforcing Effects 0.000 claims description 27
- 210000003205 Muscles Anatomy 0.000 claims description 22
- 230000002787 reinforcement Effects 0.000 claims description 8
- 239000003351 stiffeners Substances 0.000 claims description 7
- 239000004744 fabrics Substances 0.000 claims description 5
- 230000001070 adhesive Effects 0.000 claims description 3
- 239000000853 adhesives Substances 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
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- 239000011901 water Substances 0.000 abstract description 2
- 239000011257 shell materials Substances 0.000 abstract 4
- 280000398338 Seismic companies 0.000 abstract 1
- 230000014509 gene expression Effects 0.000 description 6
- 239000004568 cements Substances 0.000 description 4
- 239000006072 pastes Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 239000002585 bases Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000005516 engineering processes Methods 0.000 description 2
- 239000000203 mixtures Substances 0.000 description 2
- 239000011449 bricks Substances 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 239000003365 glass fibers Substances 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002035 prolonged Effects 0.000 description 1
- 238000009416 shuttering Methods 0.000 description 1
- 239000002002 slurries Substances 0.000 description 1
- 239000007787 solids Substances 0.000 description 1
Abstract
Description
(1) technical field
The utility model relates to a kind of rib of slab combined reinforced bar concrete cassette ceiling.
(2) background technology
The most of precast hollow slab that adopts of the building of brick mix structure and frame construction is as floor structure at present, it is fast that this floor structure has speed of application, advantages such as cost is low, but owing to firmly do not link between adjacent two precast hollow slabs, only use cement mortar blind, thereby not only globality is poor, is unfavorable for antidetonation, and slit cracking, infiltration often appear, put to no little inconvenience and psychological pressure to resident family.In order to address the above problem, a lot of building have adopted the method for Cast-in-place concrete floor (hollow, solid).Though the Cast-in-place concrete floor has solved antidetonation and problems of crack, when construction, to use a large amount of templates, like this, not only increased expense, and the speed of application that slowed down, prolonged the duration.The patent No. is ZL00203695.9's " combination concrete hidden rib floor structure " utility model patent, it is made up of prefabricated plate, formwork, dark rib, upper plate, each prefabricated plate is horizontal positioned at interval, is fixed with formwork on prefabricated plate, is provided with dark rib between contiguous prefabricated thin plate or the formwork, upper plate covers on the formwork, and connect as one with dark rib, this kind floor structure no longer needs to use template in a large number, has accelerated speed of application, shorten the duration, thereby reduced cost.But above-mentioned floor easily produces micro-crack in the tensile region of dark rib bottom because the intensity and the rigidity of the tensile region of dark rib bottom are not enough, influences the normal use of floor.Therefore, develop a kind of novel rib of slab combined reinforced bar concrete cassette ceiling for being badly in need of.
(3) utility model content
The purpose of this utility model is to provide a kind of rib of slab combined reinforced bar concrete cassette ceiling, has the floor tensile region and does not produce micro-crack, does not influence the characteristics of the normal use of floor.
Solution of the present utility model is on the basis of existing technology, inwardly shrink the side of the formwork that will fix on prefabricated plate, correspondingly type structure is expanded as in the bottom of cast in place reinforced bar concrete hidden rib, and type structure is cast-in-place type structure or in-situ deposited prefabricated type structure cast-in-place and that prefabricated panel is built up.Like this, dark intensity and the rigidity of rib in the tensile region improves greatly, and the floor tensile region does not produce micro-crack, does not influence the normal use of floor.Characteristics such as thereby overcome the deficiencies in the prior art, reached the purpose of this utility model, simultaneously, the intensity of floor and rigidity are corresponding also to be improved, and in addition, floor also has globality and shock resistance is good, do not seep water, need not a large amount of templates, speed of application is fast.
Feature of the present utility model also is in dark rib reinforcing bar is arranged, and reinforcing bar is prestressed reinforcement, prestress wire, cold-rolled forming section, channel-section steel or I-shaped shaped steel, and reinforcing bar is implied in the dark rib or with dark rib soffit and flushes.Like this, in dark rib,, can improve its supporting capacity effectively, prevent the generation in crack, and be specially adapted to the floor slab in space structure of large bay, large span because reinforcing bar is arranged.
Feature of the present utility model is that also reinforcing rib is arranged on the prefabricated plate.Can improve the intensity and the rigidity of prefabricated plate like this, but the thickness of attenuate prefabricated plate correspondingly, and convenient carrying, construction reduce cost.
Feature of the present utility model is that also reinforce is arranged in prefabricated plate, reinforce is reinforcing bar, steel wire, steel mesh reinforcement or gauze wire cloth, the muscle of revealing is perhaps arranged simultaneously or reveal net or dew muscle and dew net.Like this, the intensity and the rigidity of prefabricated plate further improve, and the thickness of prefabricated plate can further reduce, and cost can further reduce, and it is more convenient to carry, construct.If prefabricated plate reveals muscle simultaneously in addition or reveals net, and is then better with the bonding of Cast-in-place concrete, more difficult between prefabricated plate and cast in place reinforced bar concrete hidden rib or produce micro-crack between the prefabricated plate, globality, the shock resistance of floor are stronger.
Feature of the present utility model is that also the edge of prefabricated plate is step, hypotenuse shape, profile of tooth, waveform, shaped form or broken line shape.Like this, with the adhesion stress that further strengthens between prefabricated plate and concrete or the cement paste, perhaps the mutual inlay resultant force between the prefabricated plate with the possibility of further minimizing floor cracking, thereby improves floor globality, shock resistance.
Feature of the present utility model also is to reveal muscle or reveals net or reveal muscle and reveal one side from the upper surface of prefabricated plate along the edge of net, two limits, three limits or upwards or oblique stretching out all around.Like this, owing to reveal muscle or reveal net from the upper surface of prefabricated plate along the edge upwards or oblique stretching out, thereby prefabricated plate can the row of being close to split layout when arranging, and need not at dark flank position support shuttering, with further reduction expense, and the quickening speed of application.And the fine gap between the prefabricated plate will be filled up by cement paste under vibrating, thereby eliminates the slit between the prefabricated plate.
Feature of the present utility model is that also the external surface of formwork is waveform, zigzag, plucking shape or impression rough surface.Like this,, further improve the intensity and the rigidity of floor because the external surface of formwork is a rough surface, thereby can increase the adhesion stress between formwork and the Cast-in-place concrete, and overall performance.
Feature of the present utility model is that also stiffener is arranged on the formwork, and stiffener is reinforcing rib, stiffening rib or support bar.Like this, the intensity and the rigidity of formwork are strengthened greatly, cracky not in carrying and work progress, and the formwork that various stiffener forms are provided simultaneously is for the selection of design and construction unit, to satisfy the needs of different engineerings.
Feature of the present utility model is also that the correspondence position on formwork and prefabricated plate is reserved with or is embedded with or be shaped in advance or is adhesive with and is used for formwork and is fixed in fixture on the prefabricated plate that fixture is pre-buried weldment, cutting ferrule, bolt, screw, iron wire or glued cured layer.Like this, owing to there are various fixed connecting pieces selective, make to produce to become simple, it is easy, quick that construction becomes, and made things convenient for design, production, construction, reduced cost, improved benefit.。
Feature of the present utility model also is to be useful on the location thing that formwork connects the location on the prefabricated plate, and the location thing is locating piece, positioning strip, posting, locating slot, locating ring, reference column, fastening screw hole or fixed connecting piece.Like this, owing to be useful on the location thing that formwork connects the location on prefabricated plate, therefore, make construction be more prone to, speed of application is faster.
(4) description of drawings
Fig. 1 is the structural representation of embodiment 1 of the present utility model.In Fig. 1,1 expression prefabricated plate, 2 expression formworks, the dark rib of 3 expressions, 4 expression upper plates, 5 expression type structures, in the description of drawings of each embodiment, the member of numbering its identical expression is also identical in the back.As shown in Figure 1, go up the side of fixing formwork (2) at prefabricated plate (1) and inwardly shrink, correspondingly type structure (5) is expanded as in the bottom of cast in place reinforced bar concrete hidden rib (3), and is cast-in-place type structure (5).
Fig. 2 is the structural representation of embodiment 2 of the present utility model, and the bottom of its dark rib (3) is the cast-in-place in-situ deposited prefabricated type structure (5) that is built up with prefabricated panel.
Fig. 3 is the structural representation of embodiment 3 of the present utility model, and the bottom of its dark rib (3) is a cast-in-place type structure (5).
Fig. 4 is the structural representation of embodiment 4 of the present utility model, and the bottom of its dark rib (3) is the cast-in-place in-situ deposited prefabricated type structure (5) that partly is built up with prefabricated panel.
Fig. 5 is the structural representation of embodiment 5 of the present utility model, in the dark rib (3) I-shaped shaped steel (6) being arranged.
Fig. 6 is the structural representation of embodiment 6 of the present utility model, in the dark rib (3) channel-section steel (6) being arranged.
Fig. 7 is the structural representation of embodiment 7 of the present utility model, for secretly having prestress wire (6) is arranged in (3).
Fig. 8 is the structural representation of embodiment 8 of the present utility model, for reinforcing rib (7) is arranged on the prefabricated plate (1).
Fig. 9 is the structural representation of embodiment 9 of the present utility model, for reinforcing bar reinforce (8) is arranged in the prefabricated plate (1), and dew muscle (9) is arranged.
Figure 10 is the structural representation of embodiment 10 of the present utility model, for steel mesh reinforcement or gauze wire cloth reinforce (8) are arranged in the prefabricated plate (1), and dew net (10) is arranged.
Figure 11 is the structural representation of embodiment 11 of the present utility model, for the edge of prefabricated plate (1) is a profile of tooth, and upper surface along around protruded upward dew muscle (9).
Figure 12 is the structural representation of embodiment 12 of the present utility model, for the edge of prefabricated plate (1) is a step, and upper surface along around oblique being extended with reveal muscle (9).
Figure 13 is the structural representation of embodiment 13 of the present utility model, and the external surface of its formwork (2) is the impression rough surface.
Figure 14 is the structural representation of embodiment 14 of the present utility model, and the external surface of its formwork (2) is a waveform.
Figure 15 is the structural representation of embodiment 15 of the present utility model, and reinforcing rib (11) is arranged on its formwork (2).
Figure 16 is the structural representation of embodiment 16 of the present utility model, and support bar (11) is arranged on its formwork (2).
Figure 17 is the structural representation of embodiment 17 of the present utility model, is embedded with weldment (12) at the correspondence position of formwork (2) and prefabricated plate (1).
Figure 18 is the structural representation of embodiment 18 of the present utility model, is embedded with cutting ferrule (12) at the correspondence position of formwork (2) and prefabricated plate (1).
Figure 19 is the structural representation of embodiment 19 of the present utility model, is useful on the locating piece (13) that formwork (2) connects the location on prefabricated plate (1).
Figure 20 is the structural representation of embodiment 20 of the present utility model, is useful on the positioning strip (13) that formwork (2) connects the location on prefabricated plate (1).
(5) embodiment
Below in conjunction with drawings and Examples the utility model is further described.
The utility model as shown in drawings, include prefabricated plate (1), formwork (2), dark rib (3), upper plate (4), each prefabricated plate (1) is horizontal positioned at interval, on prefabricated plate (1), be fixed with formwork (2), be provided with dark rib (3) between contiguous prefabricated thin plate (1) or the formwork (2), upper plate (4) covers on the formwork (2), and be connected one with dark rib (3), of the present utility model being characterised in that at prefabricated plate (1) upward inwardly shunk the side of fixing formwork (2), correspondingly type structure (5) is expanded as in the bottom of cast in place reinforced bar concrete hidden rib (3), and type structure (5) is cast-in-place type structure or in-situ deposited prefabricated type structure cast-in-place and that prefabricated panel is built up.Fig. 1 is the structural representation of embodiment 1 of the present utility model, goes up the side of fixing formwork (2) at prefabricated plate (1) and inwardly shrinks, and correspondingly type structure (5) is expanded as in the bottom of cast in place reinforced bar concrete hidden rib (3), and is cast-in-place type structure (5).Fig. 2 is the structural representation of embodiment 2 of the present utility model, and the bottom of its dark rib (3) is the cast-in-place in-situ deposited prefabricated type structure (5) that is built up with prefabricated panel.Fig. 3 is the structural representation of embodiment 3 of the present utility model, and the bottom of its dark rib (3) is a cast-in-place type structure (5).Fig. 4 is the structural representation of embodiment 4 of the present utility model, and the bottom of its dark rib (3) is the cast-in-place in-situ deposited prefabricated type structure (5) that partly is built up with prefabricated panel.
Feature of the present utility model also is in dark rib (3) reinforcing bar (6) is arranged, and reinforcing bar (6) is prestressed reinforcement, prestress wire, cold-rolled forming section, channel-section steel or I-shaped shaped steel, and reinforcing bar (6) is implied in the dark rib (3) or with dark rib (3) soffit and flushes.Fig. 5 is the structural representation of embodiment 5 of the present utility model, in the dark rib (3) I-shaped shaped steel (6) being arranged.Fig. 6 is the structural representation of embodiment 6 of the present utility model, in the dark rib (3) channel-section steel (6) being arranged.Fig. 7 is the structural representation of embodiment 7 of the present utility model, for secretly having prestress wire (6) is arranged in (3).
Feature of the present utility model is that also reinforcing rib (7) is arranged on the prefabricated plate (1).Fig. 8 is the structural representation of embodiment 8 of the present utility model, for reinforcing rib (7) is arranged on the prefabricated plate (1).
Feature of the present utility model is that also reinforce (8) is arranged in prefabricated plate (1), reinforce (8) is reinforcing bar, steel wire, steel mesh reinforcement or gauze wire cloth, dew muscle (9) is perhaps arranged simultaneously or reveal net (10) or dew muscle (9) and dew net (10).Fig. 9 is the structural representation of embodiment 9 of the present utility model, for reinforcing bar reinforce (8) is arranged in the prefabricated plate (1), and dew muscle (9) is arranged.Figure 10 is the structural representation of embodiment 10 of the present utility model, for steel mesh reinforcement or gauze wire cloth reinforce (8) are arranged in the prefabricated plate (1), and dew net (10) is arranged.
Feature of the present utility model is that also the edge of prefabricated plate (1) is step, hypotenuse shape, profile of tooth, waveform, shaped form or broken line shape.Figure 11 is the structural representation of embodiment 11 of the present utility model, for the edge of prefabricated plate (1) is a profile of tooth, and upper surface along around protruded upward dew muscle (9).Figure 12 is the structural representation of embodiment 12 of the present utility model, for the edge of prefabricated plate (1) is a step, and upper surface along around oblique being extended with reveal muscle (9).
Feature of the present utility model also be to reveal muscle (9) reveal net (10) or reveal muscle (9) and reveal net (10) from the upper surface of prefabricated plate (1) along the edge one side, two limits, three limits or make progress all around or oblique stretching out.As shown in figure 11, the edge upper surface for prefabricated plate (1) has protruded upward dew muscle (9).Shown in Figure 12, be extended with dew muscle (9) for the edge upper surface of prefabricated plate (1) is oblique.
Feature of the present utility model is that also the external surface of formwork (2) is waveform, zigzag, plucking shape or impression rough surface.Figure 13 is the structural representation of embodiment 13 of the present utility model, and the external surface of its formwork (2) is the impression rough surface.Figure 14 is the structural representation of embodiment 14 of the present utility model, and the external surface of its formwork (2) is a waveform.
Feature of the present utility model is that also stiffener (11) is arranged on the formwork (2), and stiffener (11) is reinforcing rib, stiffening rib or support bar.Figure 15 is the structural representation of embodiment 15 of the present utility model, and reinforcing rib (11) is arranged on its formwork (2).Figure 16 is the structural representation of embodiment 16 of the present utility model, and support bar (11) is arranged on its formwork (2).
Feature of the present utility model is also that the correspondence position on formwork (2) and prefabricated plate (1) is reserved with or is embedded with or be shaped in advance or is adhesive with and is used for formwork (2) and is fixed in fixture (12) on the prefabricated plate (1) that fixture (12) is pre-buried weldment, cutting ferrule, bolt, screw, iron wire or glued cured layer.Figure 17 is the structural representation of embodiment 17 of the present utility model, is embedded with weldment (12) at the correspondence position of formwork (2) and prefabricated plate (1).Figure 18 is the structural representation of embodiment 18 of the present utility model, is embedded with cutting ferrule (12) at the correspondence position of formwork (2) and prefabricated plate (1).
Feature of the present utility model also is to be useful on the prefabricated plate (1) the location thing (13) that formwork (2) connects the location, and location thing (13) is locating piece, positioning strip, posting, locating slot, locating ring, reference column, fastening screw hole or fixed connecting piece.Figure 19 is the structural representation of embodiment 19 of the present utility model, is useful on the locating piece (13) that formwork (2) connects the location on prefabricated plate (1).Figure 20 is the structural representation of embodiment 20 of the present utility model, is useful on the positioning strip (13) that formwork (2) connects the location on prefabricated plate (1).
When the utility model is implemented, earlier with concrete or steel bar concrete or prestressed reinforced concrete prefabricated plate (1), with glass fibre cement slurry or one deck formwork (2) that the prefabricated side of method of one deck cement paste inwardly shrinks of arranging net, prefabricated plate (1) is placed on the support mould bases on request, reinforcing bar in the dark rib of colligation (3) or lay I-shaped shaped steel (6) simultaneously, lay formwork (2), formwork (2) is fixed on the prefabricated plate (1) as pre-buried weldment or cutting ferrule etc. by fixture (12), colligation upper plate (4) reinforcing bar then, build concrete, vibration moulding, and maintenance is to stipulating the length of time, remove that supporting mould bases gets final product.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02202707 CN2522492Y (en) | 2002-01-28 | 2002-01-28 | Board-rib combined steel reinforced concrete hollow floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02202707 CN2522492Y (en) | 2002-01-28 | 2002-01-28 | Board-rib combined steel reinforced concrete hollow floor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2522492Y true CN2522492Y (en) | 2002-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02202707 CN2522492Y (en) | 2002-01-28 | 2002-01-28 | Board-rib combined steel reinforced concrete hollow floor |
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| Country | Link |
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| CN (1) | CN2522492Y (en) |
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| CN101196022B (en) * | 2004-01-06 | 2010-12-29 | 湖南邱则有专利战略策划有限公司 | Combined reinforced concrete hollow floor |
| CN101200946B (en) * | 2004-01-06 | 2011-04-13 | 湖南邱则有专利战略策划有限公司 | Combined reinforced bar concrete hollow core floor slab |
| CN101311474B (en) * | 2004-09-02 | 2011-08-03 | 湖南邱则有专利战略策划有限公司 | Hollow mold for filling cast-in-place concrete |
| CN102251673A (en) * | 2010-06-13 | 2011-11-23 | 吴方伯 | Construction method for reinforced concrete hollow floor |
| CN101255745B (en) * | 2004-01-06 | 2011-12-21 | 湖南邱则有专利战略策划有限公司 | Combined reinforced concrete hollow floor |
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