CN110805278A - Method for controlling thickness and flatness of concrete floor - Google Patents
Method for controlling thickness and flatness of concrete floor Download PDFInfo
- Publication number
- CN110805278A CN110805278A CN201911034942.0A CN201911034942A CN110805278A CN 110805278 A CN110805278 A CN 110805278A CN 201911034942 A CN201911034942 A CN 201911034942A CN 110805278 A CN110805278 A CN 110805278A
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- concrete floor
- positioning plate
- laser
- horizontal
- digital display
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/10—Devices for levelling, e.g. templates or boards
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to a method for controlling the thickness and the flatness of a concrete floor, wherein a floor elevation reference control line and an auxiliary control line are marked on a white positioning plate, the white positioning plate is bound on a frame column or a shear wall steel bar, and the floor elevation reference control line on the bound white positioning plate is consistent with a pre-calibrated positioning elevation in the vertical direction of a corresponding floor; fixing a laser digital display horizontal ruler at the top of the horizontal scraping bar; when the concrete floor is accurately leveled for the last time, the horizontal scraping bar is placed at the top of the concrete floor; when laser light emitted by the laser digital display leveling ruler coincides with an elevation reference control line on the white positioning plate, the height of the bottom surface of the horizontal scraping bar is consistent with the designed elevation of the upper surface of the concrete floor; the invention can achieve the purpose of economically, conveniently and effectively controlling the thickness and the flatness of the concrete, so that the thickness and the flatness of the poured concrete floor can meet the quality standard requirements.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a method for controlling the thickness and the flatness of a floor slab during cast-in-place concrete floor slab pouring construction.
Background
At present, in the construction process of cast-in-place concrete floors, the thickness and the flatness of the concrete floors are generally controlled by adopting a wire hanging method and a drill rod inserting method. However, when the wire hanging method is adopted, workers often press wires or damage hung control wires when the workers discharge materials by using a pump pipe of a concrete pump truck, so that the control elevation is inaccurate or even lost; in addition, the wire hanging method has certain guiding significance on discharging much ash, but is not effective in controlling the flatness of the floor slab during leveling. When the thickness of the concrete is detected by the inserting method, the detection aims at one point rather than the whole plane, so the effect of controlling the whole thickness and the flatness of the floor slab is not ideal.
In a construction site, in order to protect the laid steel bars, pipelines and the like, the walking and treading of personnel on a floor slab are generally reduced as much as possible; therefore, when the concrete floor slab is poured, too many persons cannot be arranged to construct and inspect on the floor slab. Moreover, when a concrete floor slab is poured, concrete is a relatively tense process from discharging to leveling and forming, and in order to finish leveling before the concrete is hardened as soon as possible, a constructor sometimes determines whether to level by macroscopic observation. When quality inspection is carried out after the concrete floor is formed in the later stage, the surface of the concrete floor is uneven and uneven in thickness, but cannot be changed, and only can be processed in the later stage.
Disclosure of Invention
The invention provides a method for controlling the thickness and the flatness of a concrete floor, which adopts an auxiliary positioning device, and can achieve the aim of economically, conveniently and effectively controlling the thickness and the flatness of concrete when the concrete floor is poured, so that the thickness and the flatness of the poured concrete floor can meet the quality standard requirements.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for controlling the thickness and the flatness of a concrete floor comprises the following steps:
1) a white positioning plate and a laser digital display horizontal ruler are used as auxiliary positioning devices, and a floor slab elevation reference control line and an auxiliary control line are scribed on the surface of one side of the white positioning plate; fixing a laser digital display horizontal ruler at the top of the horizontal scraping bar; the laser emitting direction of the laser digital display horizontal ruler is parallel to the lower surface of the horizontal scraping bar;
2) binding a white positioning plate on a frame column or a shear wall steel bar before pouring the concrete floor slab, and arranging the white positioning plate along the columns on the periphery of the concrete floor slab and the entire length of the shear wall; the floor elevation reference control line on the bound white positioning plate is consistent with the pre-calibrated positioning elevation in the vertical direction of the corresponding floor; the positioning elevation is calculated according to the following formula: h ═ H0+h1+h2(ii) a In the formula H0Designing elevation h for upper surface of concrete floor1Is the height of the horizontal scraping bar, h2The distance between a laser emergent point of the laser digital display horizontal ruler and the upper surface of the horizontal scraping ruler is shown;
3) when the concrete floor is accurately leveled for the last time, the horizontal scraping bar is placed at the top of the concrete floor; when laser light emitted by the laser digital display leveling ruler coincides with an elevation reference control line on the white positioning plate, the height of the bottom surface of the horizontal scraping bar is consistent with the designed elevation of the upper surface of the concrete floor; and (4) leveling the concrete floor slab by using a trowel to press and polish according to the height of the bottom surface of the horizontal scraping bar, so that the thickness and the flatness of the concrete floor slab are accurately controlled.
The white positioning plate is made of a white color-coated plate, the width of the white positioning plate is more than 50mm, and the thickness of the white positioning plate is 0.5-3 mm.
The horizontal scraping bar is made of aluminum alloy.
One end of the laser digital display level bar is a laser emitting end, or both ends of the laser digital display level bar are laser emitting ends, and the laser emitting distance is at least 5 m.
The laser digital display horizontal ruler is provided with 1 in the middle of the horizontal scraping bar, or 1 at each of two ends of the horizontal scraping bar.
The horizontal scraping bar is replaced by a guiding rule or a horizontal rule.
Compared with the prior art, the invention has the beneficial effects that:
1) the auxiliary positioning device is simple to manufacture, low in cost and convenient to operate, field workers can well master and apply the auxiliary positioning device, and the purposes of economically, conveniently and effectively controlling the thickness and the flatness of concrete can be achieved.
2) The method of the invention has the advantages of no influence on the concrete pouring speed, strong applicability and wide application in the concrete slab pouring construction of the building engineering.
3) The thickness and the flatness of the floor can be effectively controlled, so that the thickness and the flatness of the poured concrete floor meet the quality standard requirements, the control of the floor height of a building is facilitated, and the engineering construction quality is improved.
4) The thickness and the roughness of the floor slab can be accurately controlled when the floor slab is plastered, so that the floor slab meets the requirements of design and construction specifications, the leveling treatment is carried out when the floor slab is constructed in the later period, fine stone concrete or cement mortar and labor cost for leveling the floor slab are saved, the resource waste is reduced, and the control of the construction cost is facilitated.
Drawings
Fig. 1 is a schematic view illustrating a method for controlling the thickness and flatness of a concrete floor according to the present invention.
In the figure: 1. concrete floor 2, frame column or shear wall steel bar 3, white positioning plate 4, horizontal scraping bar 5, laser digital display level bar
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
as shown in fig. 1, the method for controlling the thickness and the flatness of the concrete floor according to the present invention comprises the following steps:
1) a white positioning plate 3 and a laser digital display horizontal ruler 5 are used as auxiliary positioning devices, and a floor slab elevation reference control line and an auxiliary control line are scribed on the surface of one side of the white positioning plate 3; fixing a laser digital display horizontal ruler 5 on the top of the horizontal scraping bar 4; the laser emitting direction of the laser digital display horizontal ruler 5 is parallel to the lower surface of the horizontal scraping bar 4;
2) before the concrete floor slab 2 is poured, binding a white positioning plate 3 on a frame column or a shear wall steel bar 2, and arranging the white positioning plate 3 along the columns around the concrete floor slab 1 and the entire length of the shear wall; the floor elevation reference control line on the white positioning plate 3 after binding is consistent with the pre-calibrated positioning elevation in the vertical direction of the corresponding floor; the positioning elevation is calculated according to the following formula: h ═ H0+h1+h2(ii) a In the formula H0Designing elevation h for upper surface of concrete floor1Is the height of the horizontal scraping bar, h2The distance between a laser emergent point of the laser digital display horizontal ruler and the upper surface of the horizontal scraping ruler is shown;
3) when the concrete floor slab 1 is accurately leveled for the last time, the horizontal scraping bar 4 is placed on the top of the concrete floor slab 1; when laser light emitted by the laser digital display leveling rod 5 coincides with an elevation reference control line on the white positioning plate 3, the height of the bottom surface of the horizontal scraping bar 4 is consistent with the designed elevation of the upper surface of the concrete floor slab 1; and (3) leveling the concrete floor slab 1 by using a trowel to press and polish according to the height of the bottom surface of the horizontal scraping bar 4, so that the thickness and the flatness of the concrete floor slab 1 are accurately controlled.
The white positioning plate 3 is made of a white color-coated plate, the width of the white positioning plate is more than 50mm, and the thickness of the white positioning plate is 0.5-3 mm.
The horizontal scraping bar 4 is made of aluminum alloy.
One end of the laser digital display horizontal ruler 5 is a laser emitting end, or both ends of the laser digital display horizontal ruler are laser emitting ends, and the laser emitting distance is at least 5 m.
The laser digital display horizontal ruler 5 is provided with 1 in the middle of the horizontal scraping bar 4, or the two ends of the horizontal scraping bar 4 are respectively provided with 1.
The horizontal scraping bar 4 is replaced by a guiding rule or a horizontal rule.
The following examples are carried out on the premise of the technical scheme of the invention, and detailed embodiments and specific operation processes are given, but the scope of the invention is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.
[ examples ] A method for producing a compound
In this embodiment, a method for controlling the thickness and the flatness of a concrete floor includes:
1. cutting out white color-coated sheet strips with the thickness of 0.5mm and the width of 50mm, and scribing floor elevation reference control lines and auxiliary control lines, namely 0 line, +5mm line and-5 mm line. Before the concrete floor slab is poured, a measurement paying-off worker positions the elevation according to the vertical direction of the floor slab, and the white color-coated plate strip is bound on the frame column or the shear wall steel bar to be used as an elevation control line when the concrete floor slab is poured.
2. 2 laser digital display horizontal rulers (each length is 200mm) with one end emitting laser are respectively fixed at two ends of the top of the 2m long aluminum alloy horizontal scraping bar by using powerful magnetic pastes, and the laser emitting directions of the 2 laser digital display horizontal rulers respectively face to the outer end of the aluminum alloy horizontal scraping bar.
3. When the concrete floor slab is poured, the unloading amount of the concrete is guided by utilizing the elevation reference control lines on the white color-coated slab strips arranged around, and the initial leveling is favorably carried out by scratching and crawling.
4. When the concrete floor is accurately leveled for the last time, a construction worker places an aluminum alloy horizontal scraping bar (a guiding rule or a leveling rule can also be adopted) on the concrete floor. When the laser emitted by the laser digital display level ruler coincides with the elevation reference control line on the white color-coated plate lath, the bottom surface scheduling of the aluminum alloy horizontal scraping bar is the designed elevation of the upper surface of the floor slab. When a worker uses a trowel to smear and level, the thickness and the flatness of the floor slab can be accurately controlled by using the bottom surface of the aluminum alloy scraping bar.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A method for controlling the thickness and the flatness of a concrete floor is characterized by comprising the following steps:
1) a white positioning plate and a laser digital display horizontal ruler are used as auxiliary positioning devices, and a floor slab elevation reference control line and an auxiliary control line are scribed on the surface of one side of the white positioning plate; fixing a laser digital display horizontal ruler at the top of the horizontal scraping bar; the laser emitting direction of the laser digital display horizontal ruler is parallel to the lower surface of the horizontal scraping bar;
2) binding a white positioning plate on a frame column or a shear wall steel bar before pouring the concrete floor slab, and arranging the white positioning plate along the columns on the periphery of the concrete floor slab and the entire length of the shear wall; the floor elevation reference control line on the bound white positioning plate is consistent with the pre-calibrated positioning elevation in the vertical direction of the corresponding floor; the positioning elevation is calculated according to the following formula: h ═ H0+h1+h2(ii) a In the formula H0Designing elevation h for upper surface of concrete floor1Is the height of the horizontal scraping bar, h2The distance between a laser emergent point of the laser digital display horizontal ruler and the upper surface of the horizontal scraping ruler is shown;
3) when the concrete floor is accurately leveled for the last time, the horizontal scraping bar is placed at the top of the concrete floor; when laser light emitted by the laser digital display leveling ruler coincides with an elevation reference control line on the white positioning plate, the height of the bottom surface of the horizontal scraping bar is consistent with the designed elevation of the upper surface of the concrete floor; and (4) leveling the concrete floor slab by using a trowel to press and polish according to the height of the bottom surface of the horizontal scraping bar, so that the thickness and the flatness of the concrete floor slab are accurately controlled.
2. The method for controlling the thickness and the flatness of the concrete floor according to claim 1, wherein the white positioning plate is made of white color-coated plates, the width of the white positioning plate is more than 50mm, and the thickness of the white positioning plate is 0.5-3 mm.
3. The method as claimed in claim 1, wherein the horizontal scraping bar is made of aluminum alloy.
4. The method for controlling the thickness and the flatness of the concrete floor according to claim 1, wherein one end of the laser digital display level bar is a laser emitting end, or both ends of the laser digital display level bar are laser emitting ends, and the laser emitting distance is at least 5 m.
5. The method for controlling the thickness and the flatness of the concrete floor according to claim 1, wherein 1 laser digital display leveling instrument is arranged in the middle of the horizontal scraping bar, or 1 laser digital display leveling instrument is respectively arranged at two ends of the horizontal scraping bar.
6. A method as claimed in claim 1 or 5, wherein the horizontal scraping bar is replaced by a guiding rule or a level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911034942.0A CN110805278A (en) | 2019-10-29 | 2019-10-29 | Method for controlling thickness and flatness of concrete floor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911034942.0A CN110805278A (en) | 2019-10-29 | 2019-10-29 | Method for controlling thickness and flatness of concrete floor |
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| CN110805278A true CN110805278A (en) | 2020-02-18 |
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| CN201911034942.0A Pending CN110805278A (en) | 2019-10-29 | 2019-10-29 | Method for controlling thickness and flatness of concrete floor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112344828A (en) * | 2020-10-30 | 2021-02-09 | 广西建工集团控股有限公司 | Method for measuring thickness and flatness of concrete layer and deformation of template |
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| US7172364B1 (en) * | 2006-03-17 | 2007-02-06 | Nicholson Concrete | Dropped curb finisher |
| CN203769332U (en) * | 2014-03-26 | 2014-08-13 | 东莞市建之都建设工程有限公司 | Building form or floor construction control device |
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| CN205857744U (en) * | 2016-07-07 | 2017-01-04 | 中国建筑第二工程局有限公司 | Large-span concrete floor flatness control system |
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| JP2018009394A (en) * | 2016-07-15 | 2018-01-18 | 株式会社横河ブリッジ | Concrete slab finish height management device |
| CN108487642A (en) * | 2018-02-26 | 2018-09-04 | 中国冶集团有限公司 | Angle guide device and method for controlling terrace flatness |
| KR101912562B1 (en) * | 2018-04-26 | 2018-10-26 | 전대우 | Mortar casting method using mortar pile height measuring device and vibration pile stand |
| CN109025312A (en) * | 2018-08-02 | 2018-12-18 | 中国十七冶集团有限公司 | A kind of multi-functional floor leveling unit and construction method |
| CN110185268A (en) * | 2019-05-24 | 2019-08-30 | 五冶集团上海有限公司 | A kind of control method of pouring thickness of concrete floor and flatness |
| CN209457405U (en) * | 2018-12-10 | 2019-10-01 | 中国建筑第八工程局有限公司 | Floorslab concrete leveling unit |
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2019
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Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4921372A (en) * | 1989-11-06 | 1990-05-01 | Hybertson Delmer L | Sidewalk scribing tool |
| US7172364B1 (en) * | 2006-03-17 | 2007-02-06 | Nicholson Concrete | Dropped curb finisher |
| CN203769332U (en) * | 2014-03-26 | 2014-08-13 | 东莞市建之都建设工程有限公司 | Building form or floor construction control device |
| CN105484500A (en) * | 2015-12-15 | 2016-04-13 | 中国一冶集团有限公司 | Concrete night construction elevation control device and construction method thereof |
| CN205857744U (en) * | 2016-07-07 | 2017-01-04 | 中国建筑第二工程局有限公司 | Large-span concrete floor flatness control system |
| JP2018009394A (en) * | 2016-07-15 | 2018-01-18 | 株式会社横河ブリッジ | Concrete slab finish height management device |
| CN206360374U (en) * | 2016-12-30 | 2017-07-28 | 中国建筑第八工程局有限公司 | Cast-in-place concrete floor thickness and flatness control device |
| CN108487642A (en) * | 2018-02-26 | 2018-09-04 | 中国冶集团有限公司 | Angle guide device and method for controlling terrace flatness |
| KR101912562B1 (en) * | 2018-04-26 | 2018-10-26 | 전대우 | Mortar casting method using mortar pile height measuring device and vibration pile stand |
| CN109025312A (en) * | 2018-08-02 | 2018-12-18 | 中国十七冶集团有限公司 | A kind of multi-functional floor leveling unit and construction method |
| CN209457405U (en) * | 2018-12-10 | 2019-10-01 | 中国建筑第八工程局有限公司 | Floorslab concrete leveling unit |
| CN110185268A (en) * | 2019-05-24 | 2019-08-30 | 五冶集团上海有限公司 | A kind of control method of pouring thickness of concrete floor and flatness |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112344828A (en) * | 2020-10-30 | 2021-02-09 | 广西建工集团控股有限公司 | Method for measuring thickness and flatness of concrete layer and deformation of template |
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Application publication date: 20200218 |