CN102155064A - Cast-in-place concrete hollow floor slab internally provided with assembled box template - Google Patents
Cast-in-place concrete hollow floor slab internally provided with assembled box template Download PDFInfo
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- CN102155064A CN102155064A CN 201110061550 CN201110061550A CN102155064A CN 102155064 A CN102155064 A CN 102155064A CN 201110061550 CN201110061550 CN 201110061550 CN 201110061550 A CN201110061550 A CN 201110061550A CN 102155064 A CN102155064 A CN 102155064A
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Abstract
The invention relates to a floor slab, in particular to a cast-in-place concrete hollow floor slab internally provided with an assembled box template combining prefabrication with cast-in-place. The cast-in-place concrete hollow floor slab comprises a reinforced concrete rib beam (1), a reinforced concrete overlapping layer (2) and an assembled box template (3), wherein the reinforced concrete rib beam (1) is formed by in-situ casting between the adjacent assembled box templates (3), the reinforced concrete overlapping layer (2) is arranged above the assembled box template (3) and is formed by in-situ casting, the reinforced concrete overlapping layer (2) and the reinforced concrete rib beam (1) form a T-shaped stress section; the assembled box template (3) is provided with a sealed cavity structure and is the inner mould of the floor slab, and a closed large cavity structure of the floor system is formed together with the reinforced concrete rib beam (1) and the reinforced concrete overlapping layer (2). The structural height of the floor slab can be greatly reduced; under the circumstance of same floor height, a relatively higher building use space can be provided; moreover, the bottom of the integral floor slab is flat, and the floor slab is convenient to use.
Description
Technical field
The present invention relates to a kind of floor, in particular, relate to a kind of prefabricated and cast-in-place built-in assembling box template cast-in-place concrete hollow floor slab that combines
Background technology
Along with China's economic construction is developed by leaps and bounds, reinforced concrete structure is extensive use in industry and civilian construction, and has obtained good technology economic.Because architectural to high level, requirements such as large space and antidetonation, developed in recent years many new, the structural system that techno-economic effect is good.
Over past ten years, the concrete dense-rib hollow building cover is used widely in China's construction work.Hollow-ribbed floor is meant that the unidirectional or bi-directional type of 1. rib distance＜=1.5m is called hollow-ribbed floor; 2. be applicable to medium or than the public building of large span; 3. for ordinary concrete, span＜=30m; For prestressed concrete, span＜=45m; 4. should cast-in-place and employing typified form (abbreviation formwork) or typing filled internal mold.Two-way ribbed slab floor is because two-way common bearing load effect, stress performance is better, therefore, such superstructure form can be widely used in many high-rise public buildings such as market, exhibition hall, conference room, warehouse, library, underground garage, lecture theater, is particularly useful for the structure types of large space, large span, the requirement of high headroom.
The form of hollow-ribbed floor mainly contains two big classes, and a class is the cast-in-situ concrete hollow-ribbed floor, and another kind of is the prefabricated and cast-in-place concrete dense-rib hollow building cover that combines.The technology of cast-in-situ concrete hollow-ribbed floor realizes that measure mainly is by filling " internal mold " among cast-in-situ concrete.Internal mold can adopt hollow tube core, casing, also can adopt cylindrical shell, the block of light solid.But to the prefabricated and cast-in-place concrete dense-rib hollow building cover that combines, still do not have reliable measures and realize at home.
Filled internal mold present stage of realizing hollow-ribbed floor in addition is integrated support structure, and these members can be hollow tube core, casing or the cylindrical shell of light solid, blocks.But its purposes is identical, as just filler.Its structure is identical, is integrated support structure.Present stage does not still have die component in the assembling and is used for precedent among the hollow-ribbed floor at home.
Summary of the invention
Purpose of the present invention is to solve defective of the prior art, and a kind of built-in assembling box template cast-in-place concrete hollow floor slab is provided, and this concrete hollow floor adopts die component in the assembling, and promptly assembling case mould adopts prefabricated and cast-in-place process combined.
A kind of built-in assembling box template cast-in-place concrete hollow floor slab of the present invention comprises: steel concrete girt strip (1), reinforced concrete sandwich layer (2), assembling case mould (3); Described steel concrete girt strip (1) cast-in-site between adjacent assembling case mould (3) forms; Described reinforced concrete sandwich layer (2) is in the top of assembling case mould (3), and cast-in-site forms; Described reinforced concrete sandwich layer (2) forms the stressed section of T-shape with steel concrete girt strip (1); It is characterized in that: described assembling case mould (3) has the enclosed cavity structure, is the internal mold of floor, forms the big cavity configuration of sealing of superstructure jointly with steel concrete girt strip (1) and reinforced concrete sandwich layer (2).
Further, technique scheme can be improved to: described assembling case mould (3) is GRC (glass fiber reinforced polymer cement) goods.
Further, technique scheme can be improved to: described assembling case mould (3) is all around in the sidewall plane, and all crest lines of assembling case mould are provided with shear key (4), and described shear key (4) is along horizontal-extending or the groove that vertically extends.
Further, technique scheme can be improved to: described groove has rectangle or trapezoidal cross-section.
Further, technique scheme can be improved to: the base plate of described assembling case mould is provided with rod shaped rib or cross rib (6).
Further, technique scheme can be improved to: sidewall is provided with wedge ribs (7) around the described assembling case mould.
Further, technique scheme can be improved to: described assembling case mould (3) is the single-unit formula, by open top container (31) and prefabricated flat board (32) assembling formation seal case.
Further, technique scheme can be improved to: described assembling case mould is a multi-section type, is assembled by a plurality of open top containers (31), is spliced to form enclosure space by double buckle (5) between the described open top container.
The invention has the beneficial effects as follows: the hollow rate of a kind of built-in assembling box template cast-in-place concrete hollow floor slab of the present invention wants high than the close rib cassette ceiling of cast-in-situ concrete, and the floor deadweight is lighter, can save material effectively, reduces construction costs; Each member of assembling case mould all adopts batch production, standardization to make in such floor, thereby can reduce on-site concrete and water fluence, has improved efficiency of construction; Compare with general girt strip floor, the structure height of such floor can reduce greatly, can provide under the identical floor height situation and more highly build usage space, and whole floor slab bottoms is smooth, the convenient use.
Description of drawings
Fig. 1 is an open top container structural representation of the present invention.
Fig. 2 is the sectional view of single-unit formula assembling case mould of the present invention.
Fig. 3, Fig. 4 are that multi-section type of the present invention is the sectional view of multi-section type assembling case mould of the present invention.
Fig. 5, Fig. 6 concrete dense-rib hollow building cover of the present invention structural map section.
Fig. 7, Fig. 8 are the structural representations that has the open top container of cross rib and wedge ribs.
The specific embodiment
As shown in Figure 1, be the structural representation of open top container 31 of the present invention.This open top container is made by glass fiber reinforced cement, the uncovered casing of being made up of sidewall and base plate.Open top container 5 is the GRC goods, play the effect of cast-in-situ steel reinforced concrete girt strip 1 side form in concrete placement, support the effect of lattice reinforcing bar superimposed sheet 4 and construction operation load, box bottom exposes, as the building ceiling, GRC goods favorable durability can be closely bound up like this.Open top container 31 both can be the single-unit formula, as shown in Figure 2, also can be multi-section type, form by assembling, as shown in Figures 3 and 4 shown in.If multi-section type splices fixing by double buckle each other mutually.Multi-section type assembling case mould height can be pursued higher height, be single-unit can't realize that and other like products have better anti-side rigidity relatively, have resistance to overturning preferably.
For strengthening being connected between assembling case mould and the cast-in-situ concrete, around assembling case mould in the sidewall plane, and all crest lines of assembling case mould are installed certain rule shear key 4 are set.Shear key can not only the back strengthens the connection between prefabricated and cast-in-place, the more important thing is and can transmit horizontal shear.
In the sidewall plane shear key all should be set around the assembling case mould: shear key is for along horizontal-extending or the groove (rectangle or trapezoidal cross-section) that vertically extends, depth of groove is not less than 5mm, width is between the 15mm to 25, development length is not less than 100mm. shear key distribution area and is not less than 30% of this plane inside wall gross area, also should be greater than 50%.
On all crest lines of case mould shear key should be set, the degree of depth is not less than 10mm, width be 10mm between the 20mm, development length is not less than 100mm, the shear key distribution length should be less than 20% of this crest line length overall on this crest line, should be greater than 50% yet.
Fig. 5, Fig. 6 built-in assembling box template cast-in-place concrete hollow floor slab structural map section of the present invention.A kind of built-in assembling box template cast-in-place concrete hollow floor slab of the present invention comprises: steel concrete girt strip 1, reinforced concrete sandwich layer 2, assembling case mould 3; Steel concrete girt strip 1 cast-in-site between adjacent assembling case mould 3 forms; Reinforced concrete sandwich layer 2 is above assembling case mould 3, and cast-in-site forms; Reinforced concrete sandwich layer 2 forms the stressed section of T-shape with steel concrete girt strip 1; Assembling case mould 3 has the enclosed cavity structure, is the internal mold of floor, with steel concrete girt strip 1 and the reinforced concrete sandwich layer 2 common big cavity configuration of sealing that forms superstructure.
Fig. 7, Fig. 8 are the structural representations that has the open top container of stiffening rib.
Stiffening rib comprises in-line rib, cross rib and wedge ribs, be that open top container institute is peculiar, purpose is for strengthening the bulk strength of casing, and can be to a certain extent the casing wall thickness do thinner, make whole box body lighter, can play the effect that alleviates dead load like this.
Operated by rotary motion in-line rib and cross rib on the base plate of open top container.Operated by rotary motion wedge ribs on sidewall around the open top container.
Because assembling case mould planar dimension is rectangular shape, be similarly rectangle as the open top container planar dimension of its basic composition.Cross rib 6 generally is set on the open top container base plate one, the in-line rib can be set for some special-shaped models (in the planar dimension minor face with the ratio on long limit less than 0.7).
If the casing depth of section than higher (the single-unit height is more than 300), can consider to be provided with wedge ribs 7 this moment on sidewall.
The stiffening rib breadth of section generally is not less than wall thickness or thickness of slab 2 times, and depth of section is not less than rib width.
With respect to concrete dense-rib cassette ceiling of the prior art, the open top container that assembling case mould is used can be realized higher depth of section with respect to common globality filled internal mold, and it is higher that the cassette ceiling depth of section can be done, and can realize bigger span.And adopt the assembling mounting process can reduce labour intensity, and multi-sectional assembled under casing good integrity, good stability, and have the inner support effect.Assembling case mould each several part member is prefabricated, and site operation assembling mounting process can make follow-up other operations cooperate flexibly, increases work efficiency.
Claims (8)
1. a built-in assembling box template cast-in-place concrete hollow floor slab comprises: steel concrete girt strip (1), reinforced concrete sandwich layer (2), assembling case mould (3); Described steel concrete girt strip (1) cast-in-site between adjacent assembling case mould (3) forms; Described reinforced concrete sandwich layer (2) is in the top of assembling case mould (3), and cast-in-site forms; Described reinforced concrete sandwich layer (2) forms the stressed section of T-shape with steel concrete girt strip (1);
It is characterized in that: described assembling case mould (3) has the enclosed cavity structure, is the internal mold of floor, forms the big cavity configuration of sealing of superstructure jointly with steel concrete girt strip (1) and reinforced concrete sandwich layer (2).
2. a kind of built-in assembling box template cast-in-place concrete hollow floor slab according to claim 1, it is characterized in that: described assembling case mould (3) is GRC (glass fiber reinforced polymer cement) goods.
3. a kind of built-in assembling box template cast-in-place concrete hollow floor slab according to claim 1, it is characterized in that: described assembling case mould (3) is all around in the sidewall plane, and all crest lines of assembling case mould are provided with shear key (4), and described shear key (4) is along horizontal-extending or the groove that vertically extends.
4. a kind of built-in assembling box template cast-in-place concrete hollow floor slab according to claim 1, it is characterized in that: described groove has rectangle or trapezoidal cross-section.
5. a kind of built-in assembling box template cast-in-place concrete hollow floor slab according to claim 1, it is characterized in that: the base plate of described assembling case mould is provided with rod shaped rib or cross rib (6).
6. a kind of built-in assembling box template cast-in-place concrete hollow floor slab according to claim 1 is characterized in that: sidewall is provided with wedge ribs (7) around the described assembling case mould.
7. a kind of built-in assembling box template cast-in-place concrete hollow floor slab according to claim 1 is characterized in that: described assembling case mould (3) is the single-unit formula, by open top container (31) and prefabricated flat board (32) assembling formation seal case.
8. a kind of built-in assembling box template cast-in-place concrete hollow floor slab according to claim 1, it is characterized in that: described assembling case mould is a multi-section type, be assembled by a plurality of open top containers (31), be spliced to form enclosure space by double buckle (5) between the described open top container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110061550 CN102155064A (en) | 2011-03-15 | 2011-03-15 | Cast-in-place concrete hollow floor slab internally provided with assembled box template |
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| CN 201110061550 CN102155064A (en) | 2011-03-15 | 2011-03-15 | Cast-in-place concrete hollow floor slab internally provided with assembled box template |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603449A (en) * | 2013-10-21 | 2014-02-26 | 傅礼铭 | Construction method of hidden frame dense rib cavity floor |
| CN105888112A (en) * | 2016-05-25 | 2016-08-24 | 丁艳涛 | Steel-mesh assembled filler for hollow floor-system hole forming |
| CN107386512A (en) * | 2017-07-05 | 2017-11-24 | 中建八局第建设有限公司 | A kind of new fabrication and installation method of Prefabricated superposed beam plate |
| CN110053156A (en) * | 2019-05-24 | 2019-07-26 | 中信国安建工集团有限公司 | A kind of cast-in-situ hollow building roof thin-wall box body and its production method |
| CN112160481A (en) * | 2020-09-22 | 2021-01-01 | 湖南弘久建材科技有限公司 | Assembly type combined mould box multi-ribbed hollow floor structure and construction method thereof |
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| CN1611695A (en) * | 2003-11-02 | 2005-05-04 | 邱则有 | Concrete filled light mould member |
| CN1847563A (en) * | 2005-04-04 | 2006-10-18 | 邱则有 | In-situ cast hollow concrete slab |
| CN201059028Y (en) * | 2007-04-27 | 2008-05-14 | 白超 | Building cavity component |
| CN201245913Y (en) * | 2008-08-20 | 2009-05-27 | 王世鹏 | Concrete steel wire net cage vivo die |
| AU2005240674B2 (en) * | 2004-05-11 | 2010-10-21 | The Australian Steel Company (Operations) Pty Ltd | Cavity former |
| CN202031214U (en) * | 2011-03-15 | 2011-11-09 | 辛崇安 | Cast-in-place concrete hollow floor plate with internal assembly box-shaped template |
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2011
- 2011-03-15 CN CN 201110061550 patent/CN102155064A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1529013A (en) * | 2003-10-01 | 2004-09-15 | 邱则有 | Shuttering member |
| CN1611695A (en) * | 2003-11-02 | 2005-05-04 | 邱则有 | Concrete filled light mould member |
| AU2005240674B2 (en) * | 2004-05-11 | 2010-10-21 | The Australian Steel Company (Operations) Pty Ltd | Cavity former |
| CN1847563A (en) * | 2005-04-04 | 2006-10-18 | 邱则有 | In-situ cast hollow concrete slab |
| CN201059028Y (en) * | 2007-04-27 | 2008-05-14 | 白超 | Building cavity component |
| CN201245913Y (en) * | 2008-08-20 | 2009-05-27 | 王世鹏 | Concrete steel wire net cage vivo die |
| CN202031214U (en) * | 2011-03-15 | 2011-11-09 | 辛崇安 | Cast-in-place concrete hollow floor plate with internal assembly box-shaped template |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603449A (en) * | 2013-10-21 | 2014-02-26 | 傅礼铭 | Construction method of hidden frame dense rib cavity floor |
| CN105888112A (en) * | 2016-05-25 | 2016-08-24 | 丁艳涛 | Steel-mesh assembled filler for hollow floor-system hole forming |
| CN107386512A (en) * | 2017-07-05 | 2017-11-24 | 中建八局第建设有限公司 | A kind of new fabrication and installation method of Prefabricated superposed beam plate |
| CN110053156A (en) * | 2019-05-24 | 2019-07-26 | 中信国安建工集团有限公司 | A kind of cast-in-situ hollow building roof thin-wall box body and its production method |
| CN110053156B (en) * | 2019-05-24 | 2023-12-22 | 中信国安建工集团有限公司 | Thin-wall box body of cast-in-situ hollow floor and production method thereof |
| CN112160481A (en) * | 2020-09-22 | 2021-01-01 | 湖南弘久建材科技有限公司 | Assembly type combined mould box multi-ribbed hollow floor structure and construction method thereof |
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Application publication date: 20110817 |