CN101871240A - Reinforced concrete hollow floorslab and construction method - Google Patents
Reinforced concrete hollow floorslab and construction method Download PDFInfo
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- CN101871240A CN101871240A CN 201010206976 CN201010206976A CN101871240A CN 101871240 A CN101871240 A CN 101871240A CN 201010206976 CN201010206976 CN 201010206976 CN 201010206976 A CN201010206976 A CN 201010206976A CN 101871240 A CN101871240 A CN 101871240A
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Abstract
The invention discloses a reinforced concrete hollow floorslab and a construction method. The hollow floorslab comprises a cast-in-place dense rib (1), a prefabricated side wall (2), a prefabricated base plate (3) and a cast-in-place top plate (4), wherein the bottom of the prefabricated side wall (2) is provided with a crack-resistant reinforcer (16). The construction method of the hollow floorslab comprises the following steps: bridging a hollow floorslab template (11), binding a ribbed beam steel bar (12), and arranging the prefabricated side wall (2); arranging the prefabricated base plate (3) on a shelved part (11), concreting, disassembling the shelved part (9) after the concrete reaches certain strength, and arranging the prefabricated base plate (3) on a bump (7) on the bottom of the prefabricated side wall or on the crack-resistant reinforcer (6); and forming a cavity by the prefabricated side wall (2), the prefabricated base plate (3) and the cast-in-place top plate (4), and painting mortar (15) under the prefabricated base plate (3) to form an integral hollow floorslab. The hollow floorslab consists of cast-in-place concrete and prefabricated components, and has light weight and good integrity.
Description
Technical field:
The present invention relates to the realm of building construction, specifically refer to a kind of reinforced concrete hollow floor and job practices.
Background technology:
Reinforced concrete cast-in-situ hollow floor plate than steel concrete solid floor feed consumption lack, floor is in light weight, the technology that existing reinforced concrete hollow floor (number of patent application 200420035588.6) adopts is with hollow prefabricated steel bar reinforced concrete, arrange in length and breadth and be placed on the bottom layer of the reinforcing steel concrete, fill out with steel concrete at the hollow prefabricated gap location of arranging in length and breadth and to become close rib, form cassette ceiling.This cassette ceiling has following deficiency: reinforcing bar, concrete feed consumption are many, from great, increased the cost of floor, and the globality of floor are bad.
Summary of the invention:
The object of the present invention is to provide that a kind of feed consumption is few, floor is in light weight, the reinforced concrete hollow floor that cost is low.The present invention also aims to provide a kind of job practices of making this cassette ceiling.
The object of the present invention is achieved like this, this reinforced concrete hollow floor comprise cast-in-place close rib, prefabricated sidewall, prefabricated panel, cast-in-place top board.The invention is characterized in that the cracking resistance reinforce is arranged at prefabricated sidewall bottom.During construction, set up the cassette ceiling template earlier, colligation girt strip reinforcing bar is placed prefabricated sidewall; Prefabricated panel is placed on the hold item, concreting, treat that concrete reaches certain intensity after, remove hold item, prefabricated panel is placed on the projection of prefabricated sidewall bottom or on the cracking resistance reinforce; Prefabricated sidewall, prefabricated panel, cast-in-place top board form cavity, and whitewash mortar under prefabricated panel forms whole cassette ceiling.Because prefabricated sidewall bottom has cracking resistance reinforces such as cracking resistance reinforcing bar, cracking resistance steel wire or anti-crack fiber, cracking resistance reinforce can strengthen being connected between prefabricated panel and the prefabricated sidewall, strengthens the globality of cassette ceiling, the crack resistance of raising prefabricated panel.Simultaneously, the cracking resistance reinforce that rigidity is bigger can be used to support prefabricated panel, strengthens being connected between prefabricated panel and the prefabricated sidewall.
Feature of the present invention is that also described cassette ceiling forms cavity by prefabricated sidewall, prefabricated panel, cast-in-place top board.Form whole cassette ceiling by prefabricated units and cast-in-situ concrete, floor is in light weight, good integrity.
Feature of the present invention also is top projection or bottom projection are arranged on the described prefabricated sidewall or the top projection is arranged simultaneously and the bottom projection.The top projection makes between prefabricated panel end and the prefabricated sidewall side plate certain distance, has guaranteed that prefabricated panel in the process that is placed into sidewall bottom projection or cracking resistance reinforce, can not be stuck between the prefabricated sidewall.The bottom projection of prefabricated sidewall is used for supporting prefabricated panel, makes prefabricated sidewall and base plate form integral body.In top projection and the bottom projection reinforcing bar can be set, improve the strength and stiffness of prefabricated sidewall.
Feature of the present invention is that also described prefabricated top side wall has anchor bar.Prefabricated top side wall has anchor bar, during concreting, anchor bar can be strengthened bonding, the build-in between prefabricated sidewall and the cast-in-situ concrete, strengthens the collaborative work between prefabricated sidewall and the cast-in-situ concrete, and stress performance, the globality of cassette ceiling are better.
Feature of the present invention is that also described prefabricated side wall upper part has two or two above holes.Because the prefabricated side wall upper part of cassette ceiling has two or two above holes, hold item is inserted in the hole on the sidewall, prefabricated panel places on the hold item, and when building concrete roof, prefabricated panel plays the effect of template.After treating that concrete reaches certain intensity, remove hold item, prefabricated panel is placed on prefabricated sidewall bottom projection or the cracking resistance reinforce, form whole cassette ceiling.
Feature of the present invention is that also there is two or more breach described prefabricated panel end.Prefabricated panel end breach is corresponding with prefabricated sidewall bottom projection or cracking resistance reinforce, prefabricated panel is shelved on the projection of prefabricated sidewall bottom or on the cracking resistance reinforce, prefabricated panel can be well and prefabricated sidewall interlock, forms integral cavity, and the stress performance and the globality of cassette ceiling are better.
Feature of the present invention also is on the described prefabricated panel separation layer is arranged.Owing to be equipped with separation layer on the prefabricated panel, during concreting, can prevent cast-in-site concrete roof plate and prefabricated panel bonding, when placing prefabricated panel on sidewall bottom projection or the cracking resistance reinforce, prefabricated panel separates with cast-in-place top board easily.
Feature of the present invention is that also hole is arranged on the prefabricated panel.Hole on the prefabricated panel can be used to settle bolt, after cast-in-situ concrete reaches certain intensity, can utilize bolt that prefabricated panel is separated with cast-in-place top board, and prefabricated panel is placed on sidewall bottom projection or the cracking resistance reinforce.
For making above-mentioned cassette ceiling, job practices of the present invention comprises the steps: to set up the cassette ceiling template, and colligation girt strip reinforcing bar is placed prefabricated sidewall; Prefabricated panel is placed on the hold item, concreting, treat that concrete reaches certain intensity after, remove hold item, prefabricated panel is placed on the projection of prefabricated sidewall bottom or on the cracking resistance reinforce; Prefabricated sidewall, prefabricated panel, cast-in-place top board form cavity, and whitewash mortar under prefabricated panel forms whole cassette ceiling.
Description of drawings:
Fig. 1 is the two-way close rib cassette ceiling construction schematic diagram of steel concrete.2 is prefabricated sidewall, and 3 is prefabricated panel, and 4 is cast-in-place top board, and 8 is the anchor bar at prefabricated sidewall 2 tops, 9 is hold item, and 10 is separation layer, and 11 is template, and 12 is the girt strip reinforcing bar, 13 is bolt, and 14 is the prefabricated panel hole, and 16 is the cracking resistance reinforce, and 17 is prefabricated sidewall 2 top holes.
Fig. 2 is the two-way close rib cassette ceiling structural representation of steel concrete.1 is cast-in-place close rib, and 5 is the cavity of prefabricated sidewall 2, prefabricated panel 3,4 formation of cast-in-place top board, and 15 is mortar.
Fig. 3 is prefabricated sidewall and prefabricated panel assembly unit schematic diagram, and 6 is prefabricated sidewall 2 top projections, and 7 is prefabricated sidewall 2 bottom projections, and 18 is prefabricated panel end breach, and separation layer 10 is arranged on the prefabricated panel 3.
Fig. 4 is the prefabricated panel structural representation, and separation layer 10 is arranged on the prefabricated panel 3, and hole 14 is arranged on the prefabricated panel 3, and erection bolt 13 in the hole 14.
The specific embodiment:
The present invention is shown in accompanying drawing 1-4, and this reinforced concrete hollow floor comprises cast-in-place close rib 1, prefabricated sidewall 2, prefabricated panel 3, cast-in-place top board 4.Cracking resistance reinforce 16 is arranged at prefabricated sidewall 2 bottoms, cassette ceiling forms cavity 5 by prefabricated sidewall 2, prefabricated panel 3, cast-in-place top board 4, top projection 6 or bottom projection 7 are arranged on the prefabricated sidewall 2 or top projection 6 is arranged simultaneously and bottom projection 7, anchor bar 8 is arranged at prefabricated sidewall 2 tops, two or two above holes 17 are arranged at prefabricated sidewall 2 tops, there is two or more breach 18 prefabricated panel 3 ends, and separation layer 10 is arranged on the prefabricated panel 3, and hole 14 is arranged on the base plate 3.Site operation sets up template 11 earlier, and colligation girt strip reinforcing bar 12 is placed prefabricated sidewall 2; Prefabricated panel 4 is placed on the hold item 9, concreting, treat that concrete reaches certain intensity after, remove hold item 9, prefabricated panel 3 is placed on the prefabricated sidewall 2 bottom projections 7 or on the cracking resistance reinforce 16; Prefabricated sidewall 2, prefabricated panel 3, cast-in-place top board 4 form cavity 5, at 3 times whitewash mortars 15 of prefabricated panel, form whole cassette ceiling.Fig. 1 is the two-way close rib cassette ceiling construction schematic diagram of steel concrete.Fig. 2 is the two-way close rib cassette ceiling structural representation of steel concrete.
Cassette ceiling forms cavity 5 by prefabricated sidewall 2, prefabricated panel 3, cast-in-place top board 4.Form whole cassette ceiling by prefabricated units and cast-in-situ concrete, floor is in light weight, good integrity.
Top projection 6 or bottom projection 7 are arranged on the prefabricated sidewall or top projection 6 is arranged simultaneously and bottom projection 7.Top projection 6 makes between prefabricated panel 3 ends and prefabricated sidewall 2 side plates certain distance, has guaranteed that prefabricated panel 3 in the process that is placed into sidewall bottom projection 7 or cracking resistance reinforce 16, can not be stuck between the prefabricated sidewall 2.The bottom projection 7 of prefabricated sidewall is used for supporting prefabricated panel 3, makes prefabricated sidewall 2 and prefabricated panel 3 form whole.
Two or two above holes 17 are arranged at prefabricated sidewall 2 tops, and hold item 9 inserts in the hole 17 of side wall upper part, and prefabricated panel places on the hold item 9, and when building concrete roof, prefabricated panel 3 plays the effect of template.After treating that concrete reaches certain intensity, remove hold item 9, prefabricated panel 3 is placed on prefabricated sidewall bottom projection 7 or the cracking resistance reinforce 16, form whole cassette ceiling.
There is two or more breach 18 prefabricated panel 3 ends, prefabricated panel 3 end breach 18 are corresponding with prefabricated sidewall bottom projection 7 or cracking resistance reinforce 16, prefabricated panel 3 is shelved on the projection 7 of prefabricated sidewall bottom or on the cracking resistance reinforce 16, prefabricated panel 3 can be well and prefabricated sidewall 2 interlocks, form integral cavity 5, the stress performance and the globality of cassette ceiling are better.Fig. 3 is prefabricated sidewall 2 and prefabricated panel 3 assembly unit schematic diagrames, prefabricated panel 3 ends jagged 18.
Be covered with separation layer 10 on the prefabricated panel 3, during concreting, can prevent cast-in-site concrete roof plate 4 and prefabricated panel 3 bondings.
Claims (9)
1. reinforced concrete hollow floor, this cassette ceiling comprises cast-in-place close rib (1), prefabricated sidewall (2), prefabricated panel (3), cast-in-place top board (4).The invention is characterized in: cracking resistance reinforce (16) is arranged at described prefabricated sidewall (2) bottom.
2. reinforced concrete hollow floor according to claim 1 is characterized in that: described cassette ceiling forms cavity (5) by prefabricated sidewall (2), prefabricated panel (3), cast-in-place top board (4).
3. reinforced concrete hollow floor according to claim 1 is characterized in that: top projection (6) or bottom projection (7) are arranged on the described prefabricated sidewall (2) or top projection (6) is arranged simultaneously and bottom projection (7).
4. reinforced concrete hollow floor according to claim 1 is characterized in that: anchor bar (8) is arranged at described prefabricated sidewall (2) top.
5. reinforced concrete hollow floor according to claim 1 is characterized in that: two or two above holes (17) are arranged at described prefabricated sidewall (2) top.
6. reinforced concrete hollow floor according to claim 1 is characterized in that: there is two or more breach (18) described prefabricated panel (3) end.
7. reinforced concrete hollow floor according to claim 1 is characterized in that: separation layer (10) is arranged on the prefabricated panel (3).
8. reinforced concrete hollow floor according to claim 1 is characterized in that: hole (14) is arranged on the prefabricated panel (3).
9. a job practices of making the described reinforced concrete hollow floor of claim 1 comprises the steps: to set up cassette ceiling template (11), and colligation girt strip reinforcing bar (12) is placed prefabricated sidewall (2); Prefabricated panel (3) is placed on the hold item (9), concreting, treat that concrete reaches certain intensity after, remove hold item (9), prefabricated panel (3) is placed on that prefabricated sidewall bottom projection (7) is gone up or cracking resistance reinforce (16) on; Prefabricated sidewall (2), prefabricated panel (3), cast-in-place top board (4) form cavity (5), and whitewash mortar (15) under prefabricated panel (3) forms whole cassette ceiling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102069766A CN101871240B (en) | 2010-06-23 | 2010-06-23 | Reinforced concrete hollow floorslab and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102069766A CN101871240B (en) | 2010-06-23 | 2010-06-23 | Reinforced concrete hollow floorslab and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101871240A true CN101871240A (en) | 2010-10-27 |
| CN101871240B CN101871240B (en) | 2012-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102069766A Expired - Fee Related CN101871240B (en) | 2010-06-23 | 2010-06-23 | Reinforced concrete hollow floorslab and construction method |
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| Country | Link |
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| CN (1) | CN101871240B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383592A (en) * | 2011-09-01 | 2012-03-21 | 吴方伯 | Bottom template for building floorslab and construction method thereof |
| CN102635235A (en) * | 2012-05-08 | 2012-08-15 | 刘春� | Method for cast-in-place of ferrocement panel by spliced net frame suspension template |
| CN104631680A (en) * | 2015-02-13 | 2015-05-20 | 上海建工二建集团有限公司 | Construction method for thin-wall square box floor system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1429698A (en) * | 2002-12-31 | 2003-07-16 | 北京太空板业股份有限公司 | Foamed cement composite slab and its production method |
| US6601357B2 (en) * | 2000-09-06 | 2003-08-05 | George Tunis | Un-reinforced thermoplastic coating |
| CN1478971A (en) * | 2003-07-18 | 2004-03-03 | 志 樊 | Composite building board material capable of load bearing and its productioin method |
-
2010
- 2010-06-23 CN CN2010102069766A patent/CN101871240B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6601357B2 (en) * | 2000-09-06 | 2003-08-05 | George Tunis | Un-reinforced thermoplastic coating |
| CN1429698A (en) * | 2002-12-31 | 2003-07-16 | 北京太空板业股份有限公司 | Foamed cement composite slab and its production method |
| CN1478971A (en) * | 2003-07-18 | 2004-03-03 | 志 樊 | Composite building board material capable of load bearing and its productioin method |
Non-Patent Citations (1)
| Title |
|---|
| 20050630 李同 如何加强现浇混凝土楼板结构的抗裂性 , 2 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383592A (en) * | 2011-09-01 | 2012-03-21 | 吴方伯 | Bottom template for building floorslab and construction method thereof |
| CN102635235A (en) * | 2012-05-08 | 2012-08-15 | 刘春� | Method for cast-in-place of ferrocement panel by spliced net frame suspension template |
| CN102635235B (en) * | 2012-05-08 | 2014-05-14 | 昆山生态屋建筑技术有限公司 | Method for cast-in-place of ferrocement panel by spliced net frame suspension template |
| CN104631680A (en) * | 2015-02-13 | 2015-05-20 | 上海建工二建集团有限公司 | Construction method for thin-wall square box floor system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101871240B (en) | 2012-01-25 |
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Granted publication date: 20120125 Termination date: 20210623 |