CN115929040A - Side wall construction method for improving horizontal construction joint - Google Patents
Side wall construction method for improving horizontal construction joint Download PDFInfo
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- CN115929040A CN115929040A CN202211633759.4A CN202211633759A CN115929040A CN 115929040 A CN115929040 A CN 115929040A CN 202211633759 A CN202211633759 A CN 202211633759A CN 115929040 A CN115929040 A CN 115929040A
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- side wall
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- middle plate
- steel bars
- construction joint
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- 238000010276 construction Methods 0.000 title claims abstract description 74
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 238000009415 formwork Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 5
- 239000011241 protective layer Substances 0.000 claims description 5
- 239000010410 layer Substances 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 3
- 230000004075 alteration Effects 0.000 abstract description 3
- 239000002002 slurry Substances 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a side wall construction method for improving a horizontal construction joint, which comprises the following steps: step one, installing side wall reinforcing steel bars at the position of a side wall; step two, after the side wall reinforcing steel bars are installed, installing a middle plate template, and synchronously pouring a middle plate and a side wall foundation, wherein the bottom ends of the side wall reinforcing steel bars are embedded in the side wall foundation; thirdly, after the middle plate is cast and molded, erecting a side wall template system on the middle plate, wherein the bottom of the inner side of the side wall template system is in contact with the middle plate, and the thickness of a wall protection layer is reserved between the side wall template system and the side wall foundation; and fourthly, after the side wall template system is erected, starting to pour the side wall body, finishing pouring of the side wall body at one time, and dismantling the side wall template system after pouring forming. Under the condition of not changing the stress of the structure, the invention greatly improves the aesthetic degree, avoids the phenomenon of chromatic aberration of the wall body, and avoids the problem of easy water leakage of the position of the construction joint because the construction joint is coated inside the side wall, thereby ensuring the construction quality.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to a side wall construction method for improving a horizontal construction joint.
Background
The construction joint refers to a joint formed between the concrete poured before and after the concrete is poured in sections due to design requirements or construction requirements in the concrete pouring process. The construction joint is not a real existing joint, and only because the initial setting time of the first poured concrete is longer than the initial setting time, a joint surface exists between the first poured concrete and the later poured concrete, and the joint surface is called as the construction joint. In the existing subway side wall construction method, in order to ensure the structural stress, a side wall foundation is synchronously cast when a bottom plate or a middle plate is cast, the height is about 300-500mm, then a side wall body is cast on the side wall foundation, and the bottom of a side wall template is aligned and fixed with a construction joint during casting.
The existing construction method has the following technical problems: 1. the hidden danger of water leakage is easily generated at the position of the construction joint, and the construction quality is influenced; 2. after the side wall foundation is poured for a period of time, the wall body is poured, and the concrete of the foundation part and the wall body is easy to generate color difference and has poor attractiveness; 3. when the wall body is poured, an integral large steel mould is adopted, the bottom of the template is difficult to be tightly jointed with the side surface of the side wall foundation, the construction difficulty is high, deviation is easy to generate, the problems of slurry leakage and the like are caused during pouring, and the phenomena of slab staggering, pitted surface and the like are caused at the position of a construction joint; 4. the traditional construction mode needs to carry out manual cooperation machinery joint cutting earlier to side wall basis chisel hair, and the work progress is loaded down with trivial details complicacy.
Disclosure of Invention
The invention provides a side wall construction method for improving a horizontal construction joint, which aims to solve the problems in the prior art.
The invention provides a construction method for improving a side wall construction joint, which comprises the following steps:
step one, installing side wall reinforcing steel bars
Installing side wall reinforcing steel bars at the positions of the side walls;
step two, pouring the middle plate
After the side wall reinforcing steel bars are installed, installing a middle plate template, and synchronously pouring a middle plate and a side wall foundation, wherein the bottom ends of the side wall reinforcing steel bars are embedded in the side wall foundation;
step three, erecting a side wall template system
After the middle plate is cast and molded, erecting a side wall template system on the middle plate, wherein the bottom of the inner side of the side wall template system is in contact with the middle plate, and the thickness of a wall protection layer is reserved between the side wall template system and the side wall foundation;
step four, pouring the side wall body
And after the side wall template system is erected, starting to pour the side wall body, finishing pouring the side wall body at one time, removing the side wall template system after pouring and forming, and finishing construction.
Furthermore, in the third step, the side wall formwork system comprises a triangular support and a pouring formwork, the pouring formwork is fixed on the inner side of the triangular support, and a main keel and a secondary keel for reinforcement are fixedly arranged between the triangular support and the pouring formwork;
and the bottom end surface of the pouring template is in contact with the middle plate, and the thickness of the wall body protective layer is reserved between the inner side surface and the side wall foundation.
Furthermore, the triangular support is fixed on the middle plate through foundation bolts.
Furthermore, in the second step, a water stop belt is buried at the position of the construction joint during pouring.
Further, the waterstop is a steel-edged rubber waterstop.
Further, in the third step, after the pouring of the middle plate and the side wall foundation is completed, roughening is performed on the position of the construction joint, and floating slurry on the top and the side of the side wall foundation is removed at one time.
Furthermore, in the second step, horizontal positioning steel bars are welded on the side wall steel bars, and the positioning steel bars are used for positioning the side wall formwork system.
The invention has the advantages and positive effects that:
1. according to the side wall construction method for improving the horizontal construction joint, the bottom of the pouring template is in contact with the middle plate during pouring, the poured wall body covers the construction joint, the inner side of the side wall is a flat end face, under the condition that the structural stress is not changed, the attractiveness is greatly improved, the phenomenon of chromatic aberration of the wall body is avoided, the construction joint is coated inside the side wall, the problem that the position of the construction joint is easy to leak water is avoided, and great guarantee is brought to the construction quality.
2. According to the side wall construction method for improving the horizontal construction joint, the pouring template is directly fixed on the middle plate during pouring, the top of the wall root foundation does not need to be aligned, the construction difficulty is small, deviation of the template does not occur, the problem of slurry leakage in the pouring process is solved, the phenomena of slab staggering and pitted surface are avoided, and the smoothness and the attractiveness of the wall surface are ensured.
3. According to the side wall construction method for improving the horizontal construction joint, secondary manual line snapping and joint cutting are not needed after the side wall foundation is poured, so that the linear shape of the construction joint and the installation precision of a side wall template are guaranteed, the construction steps are greatly simplified, the construction efficiency is improved, and the construction cost is saved.
4. According to the side wall construction method for improving the horizontal construction joint, the casting template is quickly and accurately positioned by arranging the positioning steel bars, and construction is facilitated.
Drawings
FIG. 1 is a flow chart of the steps of the present invention;
FIG. 2 is a schematic view of the construction of the present invention.
In the figure, 1 is a side wall body, 2 is a pouring template, 3 is a triangular support, 4 is a side wall foundation, and 5 is a middle plate.
Detailed Description
The present invention will be described in more detail with reference to the accompanying drawings.
The invention provides a side wall construction method for improving a horizontal construction joint, which comprises the following steps:
step one, installing side wall reinforcing steel bars
Installing side wall steel bars at the position of the side wall;
step two, pouring the middle plate 5
After the side wall steel bars are installed, installing a middle plate 5 template, and synchronously pouring a middle plate 5 and a side wall foundation 4, wherein the bottom ends of the side wall steel bars are embedded in the side wall foundation 4;
embedding a water stop belt at the position of a construction joint during pouring; the water stop is a steel-edged rubber water stop, and the width of the water stop is 35cm;
welding horizontal positioning steel bars on the side wall steel bars, wherein the positioning steel bars are used for positioning the side wall template system; the outer end of the positioning steel bar is abutted against the inner side of the pouring template 2 and used for limiting the thickness of the wall protective layer;
step three, erecting a side wall template system
After the middle plate 5 is cast and molded, erecting a side wall template system on the middle plate 5, wherein the bottom of the inner side of the side wall template system is in contact with the middle plate 5, and the thickness of a wall protection layer is reserved between the side wall template system and the side wall foundation 4; after the middle plate 5 is poured, roughening the positions of the construction joints, and chiseling out floating slurry on the top and the side surfaces of the side wall foundation 4 without manual secondary joint cutting; when pouring, the pouring template 2 is directly abutted against the middle plate 5, alignment with the top of the side wall foundation 4 is not needed, construction difficulty is small, deviation does not occur in template installation, the problem of slurry leakage in the pouring process is solved, slab staggering and pitted surface phenomena are avoided, and the smooth and attractive wall surface is ensured;
the side wall template system comprises a triangular support 3 and a pouring template 2, the pouring template 2 is fixed on the inner side of the triangular support 3, and a main keel and a secondary keel for reinforcement are fixedly arranged between the triangular support 3 and the pouring template 2; two 8 multiplied by 10 multiplied by 20cm square timbers are adopted as a pouring template 2; the bottom end face of the pouring template 2 is in contact with the middle plate 5, and the thickness of a wall body protection layer is reserved between the inner side face of the pouring template and the side wall foundation 4. The triangular bracket 3 is fixed on the middle plate 5 through foundation bolts, and the foundation bolts are installed at positions 125cm away from the side wall body; when the wall body protective layer is installed, the inner side of the pouring template 2 abuts against the outer end of the positioning steel bar and is used for limiting the thickness of the wall body protective layer;
step four, pouring the side wall body 1
After the side wall formwork system is erected, the side wall body 1 begins to be poured, the side wall body 1 is poured at one time, the side wall formwork system is dismantled after pouring forming, and construction is finished.
According to the invention, the bottom of the pouring template is in contact with the middle plate during pouring, the construction joint is covered by the poured wall body, the inner side of the side wall is a flat end surface, under the condition of not changing the structural stress, the attractiveness is greatly improved, the phenomenon of chromatic aberration of the wall body is avoided, the construction joint is covered in the side wall, the problem of easy water leakage of the construction joint position is avoided, and the construction quality is greatly guaranteed.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the spirit or scope of the invention.
Claims (7)
1. A side wall construction method for improving a horizontal construction joint is characterized by comprising the following steps:
step one, installing side wall steel bars
Installing side wall reinforcing steel bars at the positions of the side walls;
step two, pouring the middle plate (5)
After the side wall steel bars are installed, installing a middle plate (5) template, and synchronously pouring a middle plate (5) and a side wall foundation (4), wherein the bottom ends of the side wall steel bars are embedded in the side wall foundation (4);
step three, erecting a side wall template system
After the middle plate (5) is poured and molded, erecting a side wall template system on the middle plate (5), wherein the bottom of the inner side of the side wall template system is in contact with the middle plate (5), and the thickness of a wall protection layer is reserved between the side wall template system and the side wall foundation (4);
step four, pouring side wall body (1)
After the side wall formwork system is erected, the side wall body (1) begins to be poured, the side wall body (1) is poured at one time, the side wall formwork system is detached after pouring forming, and construction is finished.
2. The side wall construction method for improving the horizontal construction joint according to claim 1, wherein in the third step, the side wall formwork system comprises a triangular support (3) and a pouring formwork (2), the pouring formwork (2) is fixed on the inner side of the triangular support (3), and a main keel and a secondary keel for reinforcement are fixedly arranged between the triangular support (3) and the pouring formwork (2);
the bottom end face of the pouring template (2) is in contact with the middle plate (5), and the thickness of a wall body protective layer is reserved between the inner side face of the pouring template and the side wall foundation (4).
3. The side wall construction method for improving a horizontal construction joint according to claim 2, wherein the triangular bracket (3) is fixed on the middle plate (5) by anchor bolts.
4. The method for constructing the side wall for improving the horizontal construction joint according to claim 1, wherein in the second step, a water stop is buried at the construction joint during pouring.
5. The side wall construction method for improving the horizontal construction joint according to claim 4, wherein the water stop is a steel-edged rubber water stop.
6. The side wall construction method for improving the horizontal construction joint according to claim 1, wherein in the third step, after the middle plate (5) and the side wall foundation (4) are poured, the construction joint is roughened, and the laitance on the top and the side of the side wall foundation (4) is removed once.
7. The method for constructing the side wall for improving the horizontal construction joint according to claim 1, wherein in the second step, horizontal positioning steel bars are welded on the side wall steel bars, and the positioning steel bars are used for positioning the side wall formwork system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211633759.4A CN115929040A (en) | 2022-12-19 | 2022-12-19 | Side wall construction method for improving horizontal construction joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211633759.4A CN115929040A (en) | 2022-12-19 | 2022-12-19 | Side wall construction method for improving horizontal construction joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115929040A true CN115929040A (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211633759.4A Pending CN115929040A (en) | 2022-12-19 | 2022-12-19 | Side wall construction method for improving horizontal construction joint |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265704A (en) * | 2008-04-28 | 2008-09-17 | 天津市建工工程总承包有限公司 | Underground cast-in-place concrete structure outer wall neck construction method |
| CN102912984A (en) * | 2012-10-31 | 2013-02-06 | 中冶天工上海十三冶建设有限公司 | Construction method of invisible construction joint of concrete external wall |
| CN110607805A (en) * | 2019-08-15 | 2019-12-24 | 国网江苏省电力工程咨询有限公司 | Cable tunnel construction method |
| CN112411627A (en) * | 2020-11-11 | 2021-02-26 | 上海宝冶集团有限公司 | Construction method for eliminating construction joint stubbles on inner side of outer wall of underground structure |
| CN114059585A (en) * | 2021-12-01 | 2022-02-18 | 中建八局深圳科创发展有限公司 | Construction method of unilateral aluminum mould of subway side wall tripod |
-
2022
- 2022-12-19 CN CN202211633759.4A patent/CN115929040A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265704A (en) * | 2008-04-28 | 2008-09-17 | 天津市建工工程总承包有限公司 | Underground cast-in-place concrete structure outer wall neck construction method |
| CN102912984A (en) * | 2012-10-31 | 2013-02-06 | 中冶天工上海十三冶建设有限公司 | Construction method of invisible construction joint of concrete external wall |
| CN110607805A (en) * | 2019-08-15 | 2019-12-24 | 国网江苏省电力工程咨询有限公司 | Cable tunnel construction method |
| CN112411627A (en) * | 2020-11-11 | 2021-02-26 | 上海宝冶集团有限公司 | Construction method for eliminating construction joint stubbles on inner side of outer wall of underground structure |
| CN114059585A (en) * | 2021-12-01 | 2022-02-18 | 中建八局深圳科创发展有限公司 | Construction method of unilateral aluminum mould of subway side wall tripod |
Non-Patent Citations (1)
| Title |
|---|
| 石雷等: "轨道交通土建工程质量标准化管理实践", 31 January 2022, 北京：中国建材工业出版社, pages: 133 * |
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