CN101798853B - Construction method of thin-wall box body hollow floor slab - Google Patents
Construction method of thin-wall box body hollow floor slab Download PDFInfo
- Publication number
- CN101798853B CN101798853B CN2010101302231A CN201010130223A CN101798853B CN 101798853 B CN101798853 B CN 101798853B CN 2010101302231 A CN2010101302231 A CN 2010101302231A CN 201010130223 A CN201010130223 A CN 201010130223A CN 101798853 B CN101798853 B CN 101798853B
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- casing
- concrete
- girt strip
- box body
- colligation
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Abstract
The invention discloses a construction method of a thin-wall box body hollow floor slab, which comprises the steps of marking for positioning the position for placing a box body, reserving and pre-embedding various pipelines, installing the box body, binding top steel bars after box body installation, pouring concrete and the like. The invention has convenient construction, easy operation and easy quality control.
Description
Technical field:
The present invention relates to a kind of construction method of thin-wall box body hollow floor slab.
Background technology:
BDF thin-wall box body (box) or the application of light-wall pipe member in cast-in-situ hollow building roof can be saved the concrete consumption, alleviate dead load, reduce construction costs, reduce geological process; Realization large bay that also can be more convenient increases usable floor area, under the condition that guarantees the use clear height, can reduce the structure floor height, for the house that height restriction is arranged, can increase floor.Simultaneously, the cast-in-situ concrete hollow floor of embedding BDF thin-wall box body (box) member meets the requirement and the building industry policy of construction " energy and land saving type " building that country advocates, and has good economic benefit and social benefit.And existing job practices complexity, difficulty of construction is big, and construction quality is difficult to control.
Summary of the invention:
The object of the present invention is to provide a kind of easy construction, construction method of thin-wall box body hollow floor slab easy to operate, easy to control the quality.
Technical solution of the present invention is:
A kind of construction method of thin-wall box body hollow floor slab is characterized in that: comprise the following steps:
(1) according to drawing and designing requirement, alignment error is reduced in the position that casing is laid in the line location;
(2) reservation of various pipelines and steel pipe buried in advance, pipeline passes through in close girt strip;
(3) casing is installed: after bottom layer of the reinforcing steel and close girt strip colligation are finished, determine to be provided with anti-floating point distance and casing installation according to thickness of slab, specific practice is that the Electric portable drill with Φ 4 drill bits bores template, tying down girt strip bottom steel bar stress string with the 14# galvanized wire crosses on the template place supporting steel pipe that is locked in bed die tightly of electric drill boring, the anti-floating dot spacing is 1.0m-1.5m, casing is placed in the rib grid of band base plate reinforcing bar or band gauze wire cloth, around casing, should keeps the reinforcement cover distance with little close girt strip reinforcing bar; Or respectively place two small cushion blocks that 10-15mm is thick in four sides of casing, to guarantee the protective layer thickness between casing and the little close girt strip;
(4) beginning top layer reinforcing bar binding after the casing installation should be avoided the constructor directly to trample casing as far as possible or construction machinery, facility, material code are placed on the casing during colligation, in order to avoid the casing breakage; The colligation of top layer cover muscle must be firm with little close girt strip colligation, and cover muscle and casing face 10-15mm cushion block directly contact the cover muscle when preventing the casing come-up;
(5) carry out building of concrete: it is moistening preferably casing to be watered before the cast, when building concrete, assigns special messenger's nurse, avoids vibrating spear directly to contact casing, prevents that casing from destroying, and the vibrating spear elder generation emphasis casing periphery that vibrates guarantees that the bottom half concrete is closely knit;
(6) concrete adopts successively alternately to build and finishes, and directly vibrates the girt strip concrete to bed die with vibrating head behind a small amount of concrete of injection earlier, allows the concrete mortar infiltrate casing, and the required concrete that and then reinjects behind the bottom vibration compacting vibrates simultaneously; Slump is not less than 160mm;
(7) after concrete was built and finished, according to taking the normal maintenance of corresponding maintenance measure season, the intensity of concrete reached form removal after the design strength.
Easy construction of the present invention, easy to operate, easy to control the quality.
The invention will be further described below in conjunction with embodiment.
The specific embodiment:
A kind of construction method of thin-wall box body hollow floor slab comprises the following steps:
(1) according to drawing and designing requirement, alignment error is reduced in the position that casing is laid in the line location;
(2) reservation of various pipelines and steel pipe buried in advance, pipeline passes through in close girt strip;
(3) casing is installed: after bottom layer of the reinforcing steel and close girt strip colligation are finished, determine to be provided with anti-floating point distance and casing installation according to thickness of slab, specific practice is that the Electric portable drill with Φ 4 drill bits bores template, tying down girt strip bottom steel bar stress string with the 14# galvanized wire crosses on the template place supporting steel pipe that is locked in bed die tightly of electric drill boring, the anti-floating dot spacing is 1.0m-1.5m, casing is placed in the rib grid of band base plate reinforcing bar or band gauze wire cloth, around casing, should keeps the reinforcement cover distance with little close girt strip reinforcing bar; Or respectively place two small cushion blocks that 10-15mm is thick in four sides of casing, to guarantee the protective layer thickness between casing and the little close girt strip;
(4) beginning top layer reinforcing bar binding after the casing installation should be avoided the constructor directly to trample casing as far as possible or construction machinery, facility, material code are placed on the casing during colligation, in order to avoid the casing breakage; The colligation of top layer cover muscle must be firm with little close girt strip colligation, and cover muscle and casing face 10-15mm cushion block directly contact the cover muscle when preventing the casing come-up;
(5) carry out building of concrete: it is moistening preferably casing to be watered before the cast, when building concrete, assigns special messenger's nurse, avoids vibrating spear directly to contact casing, prevents that casing from destroying, and the vibrating spear elder generation emphasis casing periphery that vibrates guarantees that the bottom half concrete is closely knit;
(6) concrete adopts successively alternately to build and finishes, and directly vibrates the girt strip concrete to bed die with vibrating head behind a small amount of concrete of injection earlier, allows the concrete mortar infiltrate casing, and the required concrete that and then reinjects behind the bottom vibration compacting vibrates simultaneously; Slump is not less than 160mm;
(7) after concrete was built and finished, according to taking the normal maintenance of corresponding maintenance measure season, the intensity of concrete reached form removal after the design strength.
Claims (1)
1. a construction method of thin-wall box body hollow floor slab is characterized in that: comprise the following steps:
(1) according to drawing and designing requirement, alignment error is reduced in the position that casing is laid in the line location;
(2) reservation of various pipelines and steel pipe buried in advance, pipeline passes through in close girt strip;
(3) casing is installed: after bottom layer of the reinforcing steel and close girt strip colligation are finished, determine to be provided with anti-floating point distance and casing installation according to thickness of slab, specific practice is that the Electric portable drill with Φ 4 drill bits bores template, tying down girt strip bottom steel bar stress string with the 14# galvanized wire crosses on the template place supporting steel pipe that is locked in bed die tightly of electric drill boring, the anti-floating dot spacing is 1.0m-1.5m, casing is placed in the rib grid of band base plate reinforcing bar or band gauze wire cloth, should keeps the reinforcement cover distance with little close girt strip reinforcing bar around the casing;
(4) beginning top layer reinforcing bar binding after the casing installation should be avoided the constructor directly to trample casing or construction machinery, facility, material code are placed on the casing during colligation, in order to avoid the casing breakage; The colligation of top layer cover muscle must be firm with little close girt strip colligation, and cover muscle and casing face 10-15mm cushion block directly contact the cover muscle when preventing the casing come-up;
(5) carry out building of concrete: it is moistening before the cast casing to be watered, and when building concrete, assigns special messenger's nurse, avoids vibrating spear directly to contact casing, prevents that casing from destroying, and the first emphasis of the vibrating spear casing periphery that vibrates guarantees that the bottom half concrete is closely knit;
(6) concrete adopts successively alternately to build and finishes, and directly vibrates the girt strip concrete to bed die with vibrating head behind a small amount of concrete of injection earlier, allows the concrete mortar infiltrate casing, and the required concrete that and then reinjects behind the bottom vibration compacting vibrates simultaneously; Slump is not less than 160mm;
(7) after concrete was built and finished, according to taking the normal maintenance of corresponding maintenance measure season, the intensity of concrete reached form removal after the design strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101302231A CN101798853B (en) | 2010-03-16 | 2010-03-16 | Construction method of thin-wall box body hollow floor slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101302231A CN101798853B (en) | 2010-03-16 | 2010-03-16 | Construction method of thin-wall box body hollow floor slab |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101798853A CN101798853A (en) | 2010-08-11 |
| CN101798853B true CN101798853B (en) | 2011-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101302231A Expired - Fee Related CN101798853B (en) | 2010-03-16 | 2010-03-16 | Construction method of thin-wall box body hollow floor slab |
Country Status (1)
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| CN (1) | CN101798853B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046678A (en) * | 2012-12-27 | 2013-04-17 | 山西太行建设开发有限公司 | Method for constructing BDF (building distribution frame) hollow floorslab |
| CN106013569A (en) * | 2016-06-12 | 2016-10-12 | 中国十七冶集团有限公司 | Method for preventing flotation of light solid composite core formwork of composite floor system |
| CN109930726A (en) * | 2019-04-10 | 2019-06-25 | 中建七局第二建筑有限公司 | A kind of concreting process applied in hollow floor construction |
| CN110258883A (en) * | 2019-06-24 | 2019-09-20 | 南通大学 | A kind of construction method of hollow floor BDF steel mesh film filling cabinet |
| CN113309282A (en) * | 2021-06-11 | 2021-08-27 | 中电建十一局工程有限公司 | Hollow floor slab construction process |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789642A (en) * | 2004-12-14 | 2006-06-21 | 李克翔 | Spliced concrete superposed member box and method for processing net girder building cover |
| CN100368642C (en) * | 2004-12-31 | 2008-02-13 | 王本淼 | Hollow floor slab with small dense ribs and its production process |
| KR100806820B1 (en) * | 2006-12-19 | 2008-02-22 | 삼성중공업 주식회사 | Two-way hollow core slab and construction method thereof |
| CN100547193C (en) * | 2007-07-20 | 2009-10-07 | 湖南省建筑工程集团总公司 | Construction method for thin wall housing body mould shell cast-in-place concrete building roof |
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2010
- 2010-03-16 CN CN2010101302231A patent/CN101798853B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101798853A (en) | 2010-08-11 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20110921 Termination date: 20180316 |