CN101967884A - Method for controlling concrete planeness of large-area steel bar truss template - Google Patents
Method for controlling concrete planeness of large-area steel bar truss template Download PDFInfo
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- CN101967884A CN101967884A CN 201010282311 CN201010282311A CN101967884A CN 101967884 A CN101967884 A CN 101967884A CN 201010282311 CN201010282311 CN 201010282311 CN 201010282311 A CN201010282311 A CN 201010282311A CN 101967884 A CN101967884 A CN 101967884A
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Abstract
The invention belongs to the technical field of building construction, in particular relating to a method for controlling concrete planeness of a large-area steel bar truss template. The method for controlling concrete planeness of the large-area steel bar truss template comprises the following steps of: firstly, arranging a horizontal angle steel guide rail, i.e. carrying out spot welding installation on the horizontal angle steel guide rail and a vertical short angle steel; then arranging the angle steel guide rail according to width of a steel beam; and then pouring structural concrete, compactly vibrating, and flat-pressing and compacting the vibrated concrete by using a roller along an angle steel track in a reciprocating way. In the method for controlling concrete planeness of the large-area steel bar truss template, the truss template and a concrete cast-in-place plate are combined as a structural layer and the planeness is arranged in a pouring region to control the angle steel guide rail, therefore, the planeness of a cast-in-place plate of the large-area steel bar truss template is effectively ensured about 2mm to 2m and the qualified rate is more than 90 percent when the large-area concrete is poured, and the laying precision of floor concrete of a large factory is enhanced.
Description
Technical field
The present invention relates to a kind of large tracts of land reinforcing bar truss mould concrete roughness control method, belong to technical field of building construction.
Background technology
What large area concrete job practices utilization at present was more is to divide the storehouse construction method, being about to concrete is not more than 6000mm by width and carries out lattice, concrete both sides formwork, the method for in minute storehouse, carrying out concreting and the concrete surface planeness being carried out quality control.As adopt ground layer to beat steel bar end or welded reinforcement head, the high method of controlling the top of concrete absolute altitude of top mark with steel bar end, this method is fanned out from point to area, constructing operation is easy, concrete ground surface evenness after these class methods are poured into a mould is at 5～15mm/2m, but its operative skill to the workman is had relatively high expectations, it is many that roughness control artificially reaches the instrument factor, random big, construction quality depends primarily on workman's operant level, roughness control is often undesirable, in practice, often because workman's operative skill difference, and cause the construction results of concrete surface to differ greatly, about investigating this method small size planeness qualification rate to have only 80% even lower, large tracts of land is often defective.Moreover, fast development along with China's process industry, large span large tracts of land warehouse or workshop object of construction production also order become to increasing, high precision apparatus is installed the concrete surface roughness control is also had higher requirement, as a lot of plant and equipments the requirement of ground flat degree is reached 2mm/2m, otherwise can cause follow-up epoxy resin surface layer quality out of control.
Summary of the invention
The lower problem of planeness qualification rate had proposed a kind of large tracts of land reinforcing bar truss mould concrete roughness control method when the present invention laid large tracts of land reinforcing bar truss mould concrete at present for solving, and this method comprises the steps:
(1) after laying the steel bar girder mould on the girder steel, with the roofing column is benchmark, the structural concrete thickness of Pu Sheing carries out absolute altitude control as required, on girder steel along truss mould direction, straight line is provided with vertical angle cleat, be with steel wire on the angle cleat after having surveyed absolute altitude,, again the horizontal corner steel guide rail carried out spot welding with vertical angle cleat and install with control guide rail level; Wherein, described vertical angle cleat is welded on the girder steel, and the thickness of the structural concrete of the required laying of its aspect ratio hangs down 3～5mm; A limit of angle steel guide rail is placed straight up and is welded mutually with a face of vertical angle cleat, the another side horizontal positioned of angle steel guide rail, and vertical angle cleat termination is suitable for reading a little less than horizontal corner steel guide rail limit;
(2) according to the method for step (1), press girder steel fabric width 5000-8000mm, an angle steel guide rail is set on the every girder steel;
(3) setting completed for the angle steel guide rail, the pouring structure concrete, vibration compacting, use cylinder with fabric width along the angle steel track back and forth with the compacting of vibrated concrete rolling.
Described vertical angle cleat termination is lower than horizontal corner steel guide rail limit 3mm at least suitable for reading; Receive Seterolithography with mechanical photoreceiver before the concrete final set after the rolling compacting.
The specification of described angle steel guide rail is
25 * 25 * 3.
Large tracts of land reinforcing bar truss mould concrete roughness control method of the present invention adopts and combines with concrete cast-in-place slab as the mode of deck with truss mould plate; and roughness control angle steel guide rail is set in the pouring area; can be when large area concrete be built; the planeness that has effectively guaranteed large tracts of land reinforcing bar truss module and cast-in-situ plate about 2mm/2m and qualification rate more than 90%, improved the concrete laying precision of floor of large-scale factory.
Description of drawings
Fig. 1 is an angle steel guide rail scheme of installation;
Fig. 2 arranges schematic diagram for the angle steel guide level.
The specific embodiment
Embodiment: new website development zone, Hefei City floor two-layer structure concrete construction example.
This engineering making area is 43248M
2, area is big, roofing column spacing 17000*12000mm, girder steel fabric width 6000mm.
(1) on girder steel, installs the steel bar girder support shuttering; With roofing column 4 is benchmark, be as the criterion with the thickness 150mm of the structural concrete of required laying and carry out absolute altitude control, and on girder steel along truss mould direction, a vertical angle cleat 2 is set and is with absolute altitude control wire every the 2000mm straight line, vertical angle cleat 2 adopts and is welded on the girder steel 3, straight line along vertical angle cleat 2 is provided with direction then, will
25*25*3 angle steel guide rail 1 carries out spot welding with vertical angle cleat 2 and installs, a limit of angle steel guide rail 1 is placed straight up and is welded mutually with a face of vertical angle cleat 2, the another side horizontal positioned of angle steel guide rail 1, vertical angle cleat 2 terminations are lower than horizontal corner steel guide rail limit 3mm at least suitable for reading; During the installation of vertical angle cleat 2, can be earlier with two
The tension of absolute altitude control wire is with in 25*25 angle cleat welding location, and the angle steel bottom is leveled up in advance with lumps of wood cushion block, and established angle steel guide rail 1 and angle cleat spot welding under the control of level gauge are fixed according to spacing 2000mm then again, and the weldering of limit calibration edge point is installed; After the angle steel track was installed the leveling end, the available water leveling ruler carried out the repetition measurement examination.
(2), every 6000mm one angle steel guide rail is set by the fabric width of girder steel 3 according to the method for step (1);
(3) setting completed for the angle steel guide rail, builds the floor structure concrete, uses small-sized poker vibrator to insert soon and pull out slowly, and slotting point is evenly distributed, and pointwise one is moving, and order is carried out, and must not omit, and accomplishes even jolt ramming.Moving interval is not more than 1.5 times (being generally 30-40cm) of the operating radius that vibrates.The moving interval of external vibrator should guarantee that the flat board of vibrator covers the edge of the part of jolt ramming.Then in the both sides of building the width of cloth with two human 6.5M cylinders along the angle steel track back and forth with the compacting of vibrated concrete rolling, before concrete final set, receiving Seterolithography with mechanical photoreceiver.
The layout of horizontal corner steel guide rail and concreting are arranged as shown in Figure 2, in building floor structure concrete process, as when meeting the horizontal corner steel guide rail and placing the situation of position, ater-casting 6, reinforcing band position 5 etc., can earlier ater-casting, reinforcing band partly be reserved not concreting, treat to unify again to build after the moulding of floor basal plane.For guaranteeing the Concrete Construction quality, after concrete construction finishes, carry out the cover film moisture-keeping maintaining in the 12h; Reach 1.2N/mm at concrete strength
2After could go up the people, and add a cover the thick veneer of 9mm and carry out finished product protection.After treating concrete setting, adopt planeness that 2M guiding ruler actual measurement steel bar girder props up hold mode concrete structure ground all about 2mm, the planeness qualification rate is more than 90%.
Claims (4)
1. large tracts of land reinforcing bar truss mould concrete roughness control method is characterized in that: comprise the steps:
(1) after laying the steel bar girder mould on the girder steel, with the roofing column is benchmark, the structural concrete thickness of Pu Sheing carries out absolute altitude as required, on girder steel along the direction of truss mould, straight line is provided with vertical angle cleat, be with steel wire on the angle cleat after having surveyed absolute altitude,, again the horizontal corner steel guide rail carried out spot welding with vertical angle cleat and install with control guide rail level; Wherein, an end of described vertical angle cleat is welded on the girder steel, and the thickness of the structural concrete of the required laying of its aspect ratio hangs down 3～5mm; A limit of angle steel guide rail is placed straight up and is welded mutually with a face of vertical angle cleat, the another side horizontal positioned of angle steel guide rail, and vertical angle cleat termination is suitable for reading a little less than horizontal corner steel guide rail limit;
(2) according to the method for step (1), press girder steel fabric width 5000-8000mm, an angle steel guide rail is set on the every girder steel;
(3) setting completed for the angle steel guide rail, the pouring structure concrete, and vibration compacting is used with the fabric width cylinder along the angle steel guide rail back and forth with the compacting of vibrated concrete rolling.
2. large tracts of land reinforcing bar truss mould concrete roughness control method according to claim 1 is characterized in that: vertical angle cleat termination is lower than horizontal corner steel guide rail limit 3mm at least suitable for reading, and is with absolute altitude control wire.
3. large tracts of land reinforcing bar truss mould concrete roughness control method according to claim 1 is characterized in that: receive Seterolithography with mechanical photoreceiver before the concrete final set after the rolling compacting.
4. large tracts of land reinforcing bar truss mould concrete roughness control method according to claim 1, it is characterized in that: the specification of described angle steel guide rail is
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102823113A CN101967884B (en) | 2010-09-10 | 2010-09-10 | Method for controlling concrete planeness of large-area steel bar truss template |
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| CN2010102823113A CN101967884B (en) | 2010-09-10 | 2010-09-10 | Method for controlling concrete planeness of large-area steel bar truss template |
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| CN101967884A true CN101967884A (en) | 2011-02-09 |
| CN101967884B CN101967884B (en) | 2012-03-28 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109098449A (en) * | 2017-06-21 | 2018-12-28 | 五冶集团上海有限公司 | Angle steel guide rail system and its application method for large area concrete ground construction |
| CN109914666A (en) * | 2019-04-03 | 2019-06-21 | 江铃汽车集团江西工程建设有限公司 | Profiled sheet Combined concrete flooring large area pouring construction method |
| CN110512872A (en) * | 2019-08-12 | 2019-11-29 | 世源科技工程有限公司 | Concrete-face closure flatness control methods |
| CN111561041A (en) * | 2020-05-21 | 2020-08-21 | 浙江世润建创科技发展有限公司 | Cast-in-place concrete pool bottom plate and construction method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004218221A (en) * | 2003-01-10 | 2004-08-05 | Tadatoshi Mannouji | Method for constructing foundation and auxiliary tool for constructing foundation |
| CA2424603A1 (en) * | 2003-04-04 | 2004-10-04 | Paul Parenteau | Guide post for masonry construction |
| CN2825832Y (en) * | 2005-07-22 | 2006-10-11 | 中国第二十冶金建设公司 | Surface level control device for concrete casting |
| CN101492965A (en) * | 2008-05-16 | 2009-07-29 | 中冶天工上海十三冶建设有限公司 | Large area cast-in-situ concrete plate flatness control method |
-
2010
- 2010-09-10 CN CN2010102823113A patent/CN101967884B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004218221A (en) * | 2003-01-10 | 2004-08-05 | Tadatoshi Mannouji | Method for constructing foundation and auxiliary tool for constructing foundation |
| CA2424603A1 (en) * | 2003-04-04 | 2004-10-04 | Paul Parenteau | Guide post for masonry construction |
| CN2825832Y (en) * | 2005-07-22 | 2006-10-11 | 中国第二十冶金建设公司 | Surface level control device for concrete casting |
| CN101492965A (en) * | 2008-05-16 | 2009-07-29 | 中冶天工上海十三冶建设有限公司 | Large area cast-in-situ concrete plate flatness control method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109098449A (en) * | 2017-06-21 | 2018-12-28 | 五冶集团上海有限公司 | Angle steel guide rail system and its application method for large area concrete ground construction |
| CN109914666A (en) * | 2019-04-03 | 2019-06-21 | 江铃汽车集团江西工程建设有限公司 | Profiled sheet Combined concrete flooring large area pouring construction method |
| CN110512872A (en) * | 2019-08-12 | 2019-11-29 | 世源科技工程有限公司 | Concrete-face closure flatness control methods |
| CN111561041A (en) * | 2020-05-21 | 2020-08-21 | 浙江世润建创科技发展有限公司 | Cast-in-place concrete pool bottom plate and construction method thereof |
| CN111561041B (en) * | 2020-05-21 | 2021-07-06 | 浙江世润建创科技发展有限公司 | Cast-in-place concrete pool bottom plate and construction method thereof |
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| Publication number | Publication date |
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| CN101967884B (en) | 2012-03-28 |
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Address after: 230000 No.16 Qianshan North Road, Luyang District, Hefei City, Anhui Province Patentee after: Zhongan Huali Construction Group Co.,Ltd. Address before: 230022 No. 116, Wangjiang West Road, Hefei City, Anhui Province Patentee before: ANHUI HUALI CONSTRUCTION Group Co. |