CN113431215A - Waterproof structure of building bearing plate concrete construction joint and construction method thereof - Google Patents
Waterproof structure of building bearing plate concrete construction joint and construction method thereof Download PDFInfo
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- CN113431215A CN113431215A CN202110728073.2A CN202110728073A CN113431215A CN 113431215 A CN113431215 A CN 113431215A CN 202110728073 A CN202110728073 A CN 202110728073A CN 113431215 A CN113431215 A CN 113431215A
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- construction joint
- waterproof
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- modified asphalt
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6806—Waterstops
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- Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
A waterproof structure of a building bearing plate concrete construction joint and a construction method thereof comprise a high-strength grouting material and a waterproof reinforcing layer, wherein a groove is prefabricated at the top of the construction joint along the construction joint, the high-strength grouting material is filled in the groove, the waterproof reinforcing layer is arranged on two sides of the construction joint and along the construction joint, and the waterproof reinforcing layer sequentially comprises a first high polymer modified asphalt waterproof coating, a glass fiber cloth, a second high polymer modified asphalt waterproof coating and a high polymer modified asphalt waterproof coiled material from bottom to top.
Description
Technical Field
The invention relates to a waterproof structure for a roof floor bearing plate construction joint, in particular to a waterproof structure for a floor bearing plate concrete construction joint and a construction method thereof.
Background
At present, more and more industrial factory building roofs adopt a steel structure form, the roofs mainly adopt a steel bar truss cast-in-place reinforced concrete floor as a main part, and the floor slabs adopt a form of combining a steel truss floor bearing plate and a concrete slab on the basis of steel beams. Because the structure of building carrier plate, can't set up the stagnant water steel sheet in construction joint department, the not closely knit condition easily appears in construction joint department concrete simultaneously, and then causes the condition of leaking to appear in building carrier plate construction joint department, seriously influences service function.
Disclosure of Invention
The invention provides a building bearing plate concrete construction joint waterproof structure for preventing water leakage at a construction joint and a construction method thereof, which solve the defects of the prior art.
A waterproof structure of a building bearing plate concrete construction joint comprises the following steps:
a. and (3) mounting a construction joint template:
after the building bearing plate steel bars are bound, dense-mesh steel wire meshes are arranged in upper chord steel bars and bottom die steel plates of the building bearing plate, the outer sides of the steel wire meshes are fixed by adopting a forming template, meanwhile, two pieces of angle steel with opposite openings are arranged on the surfaces of the upper chord steel bars of the building bearing plate and on two sides of a construction joint and serve as top templates of side templates at the construction joint, grooves with certain widths are formed at the construction joint by the two pieces of angle steel, and the upper surfaces of the angle steel are flush with a designed elevation of concrete;
b. pouring concrete:
adopting a skip method to carry out concrete pouring, wherein the interval time between the two adjacent concrete pouring is not less than 7 days, before the concrete pouring, chiseling and washing the construction joint, and ensuring the construction joint to be vibrated and compacted in the concrete pouring process;
c. filling high-strength grouting material:
after the concrete reaches a certain strength, removing the angle steel, chiseling the concrete at the angle steel part, filling high-strength grouting material in the groove after cleaning, and manually rolling and pressing the surface;
d. and (3) constructing a waterproof reinforcing layer:
and (4) performing shot blasting on concrete on two sides of the construction joint by using a shot blasting machine, and performing construction on the waterproof reinforcing layer after cleaning the base layer.
In this embodiment, in step a, the model of the angle steel is L30 × 3 mm.
In this embodiment, in step d, the construction of the waterproof reinforcing layer specifically comprises: the method comprises the steps of uniformly brushing a first high polymer modified asphalt waterproof coating in a construction range, paving glass fiber cloth, brushing a second high polymer modified asphalt waterproof coating, and paving a high polymer modified asphalt waterproof coiled material, wherein the waterproof coiled material is subjected to edge sealing by adopting the waterproof coating.
In this embodiment, the waterproof reinforcing layer is arranged in the range of 500mm on both sides of the construction joint.
A waterproof structure for a building bearing plate concrete construction joint comprises a high-strength grouting material and a waterproof reinforcing layer, wherein a groove is prefabricated at the top of the construction joint along the construction joint, the high-strength grouting material is filled in the groove, and the waterproof reinforcing layer is arranged on two sides of the construction joint and along the construction joint.
In this embodiment, the waterproof reinforcing layer sequentially includes, from bottom to top, a first polymer modified asphalt waterproof coating, a glass fiber cloth, a second polymer modified asphalt waterproof coating, and a polymer modified asphalt waterproof roll.
In this embodiment, the first and second polymer modified asphalt waterproof coatings are 1mm thick, and the polymer modified asphalt waterproof roll is 3mm thick.
Due to the adoption of the structure, the invention has the following advantages:
1. the groove is prefabricated along the construction joint at the top of the construction joint, and high-strength grouting material is filled in the groove to serve as filling material, so that the concrete-filled concrete joint has micro-expansion, high fluidity and high self-sealing property, can be well pasted with concrete on two sides, and can be filled in gaps at the construction joint due to non-compaction through vibration;
2. the waterproof reinforced layer is laid outside the construction joint to serve as a secondary waterproof layer, the waterproof reinforced layer adopts a combination mode of high polymer modified asphalt waterproof paint, glass fiber mesh cloth, high polymer modified asphalt waterproof paint and high polymer modified asphalt waterproof coiled material, the combination mode can effectively prevent the waterproof layer from cracking, and meanwhile, the waterproof layer has a double-layer water blocking effect.
3. And a cabin jumping method is adopted for pouring during concrete pouring, so that the self-cracking risk of the concrete is reduced.
In conclusion, the invention adopts the mode that the groove with certain width is arranged at the construction joint, the groove is filled with the high-strength grouting material, and then the waterproof reinforcing layer is arranged along the construction joint, thereby effectively solving the problem that the construction joint is easy to leak because the floor bearing plate can not be provided with the water stop steel plate, and being widely applied to the roof construction of the floor bearing plate.
Drawings
FIG. 1 is a sectional view of a waterproof structure of a concrete construction joint according to the present invention.
FIG. 2 is a schematic view of the formwork of the construction joint of the present invention.
Fig. 3 is a schematic view of the waterproof reinforcing layer of the present invention.
In the attached drawings, 1 is angle steel; 2. high-strength grouting material; 3. a waterproof reinforcing layer; 31. a first high polymer modified asphalt waterproof coating; 32. glass fiber cloth; 33. a second high polymer modified asphalt waterproof coating; 34. high polymer modified asphalt waterproof coiled material; 4. dense mesh steel wire mesh; 5. shaping the template; 6. wood purlin.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 3, a method for constructing a waterproof structure of a concrete construction joint of a floor slab comprises the following steps:
firstly, mounting a construction joint template:
as shown in figure 2, after the steel bars of the floor support plate are bound, dense steel wire meshes are arranged in upper chord steel bars and a bottom die steel plate of the floor support plate, and the outer sides of the steel wire meshes are fixed by adopting a shaping template to prevent concrete from expanding. Simultaneously, on the building carrier plate upper chord reinforcing bar surface, set up two relative angle steel of opening as the top template of construction joint department side form in construction joint both sides, two angle steel form the recess of certain width in construction joint department, and angle steel upper surface and concrete design elevation parallel and level are L30 × 3mm in this embodiment.
Step two, pouring concrete:
and a skip method is adopted for concrete pouring, the self-cracking risk of the concrete is reduced, and the pouring interval time of two adjacent concretes is not less than 7 days. Before concrete pouring, chiseling the construction joint, washing the construction joint clean, and ensuring the construction joint to be vibrated compactly in the concrete pouring process.
Step three, filling high-strength grouting material:
after the concrete reaches a certain strength, the angle steel is dismantled, the angle steel is used as an interception device of the concrete, the smoothness and the straightness of a construction joint can be guaranteed, the subsequent processes can be conveniently carried out, after the angle steel is dismantled, the concrete at the angle steel part is roughened, after the angle steel is cleaned up, the groove is filled with high-strength grouting material, and the surface is artificially folded and polished.
The high-strength grouting material has micro-expansion, high fluidity and high self-sealing performance, can be well pasted with concrete on two sides, and can be filled in gaps at the construction joints due to the fact that vibration is not compact.
Fourthly, constructing a waterproof reinforcing layer:
and (3) performing shot blasting on concrete in the range of 500mm at two sides of the construction joint by using a shot blasting machine, cleaning the base layer, and then performing construction on the waterproof reinforcing layer, wherein the width of the waterproof reinforcing layer is 1 m.
As shown in fig. 3, the construction of the waterproof reinforcing layer specifically includes: the method comprises the steps of uniformly brushing a first high polymer modified asphalt waterproof coating with the thickness of 1mm in a construction range, paving glass fiber cloth, brushing a second high polymer modified asphalt waterproof coating with the thickness of 1mm, and paving a high polymer modified asphalt waterproof coiled material with the thickness of 3mm, wherein the waterproof coiled material is subjected to edge sealing by adopting the waterproof coating.
As shown in fig. 1, the invention also includes a waterproof structure of a building floor concrete construction joint formed by the construction method, which comprises a groove, a high-strength grouting material and a waterproof reinforcing layer, wherein the groove is arranged at the top of the construction joint, the high-strength concrete grouting material is filled in the groove, the 1m wide waterproof reinforcing layer is arranged along the construction joint, and finally, large-surface waterproof construction is carried out;
waterproof enhancement layer from the bottom up includes first high polymer modified asphalt waterproof coating, glass fiber cloth, second high polymer modified asphalt waterproof coating and high polymer modified asphalt waterproofing membrane in proper order, first, second high polymer modified asphalt waterproof coating is thick 1mm, high polymer modified asphalt waterproofing membrane is thick 3 mm. The combined mode can effectively prevent the waterproof layer from cracking and has double-layer water-blocking effect.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A construction method of a waterproof structure of a building bearing plate concrete construction joint is characterized by comprising the following steps: the method comprises the following steps:
a. and (3) mounting a construction joint template:
after the building bearing plate steel bars are bound, dense-mesh steel wire meshes are arranged in upper chord steel bars and bottom die steel plates of the building bearing plate, the outer sides of the steel wire meshes are fixed by adopting a forming template, meanwhile, two pieces of angle steel with opposite openings are arranged on the surfaces of the upper chord steel bars of the building bearing plate and on two sides of a construction joint and serve as top templates of side templates at the construction joint, grooves with certain widths are formed at the construction joint by the two pieces of angle steel, and the upper surfaces of the angle steel are flush with a designed elevation of concrete;
b. pouring concrete:
adopting a skip method to carry out concrete pouring, wherein the interval time between the two adjacent concrete pouring is not less than 7 days, before the concrete pouring, chiseling and washing the construction joint, and ensuring the construction joint to be vibrated and compacted in the concrete pouring process;
c. filling high-strength grouting material:
after the concrete reaches a certain strength, removing the angle steel, chiseling the concrete at the angle steel part, filling high-strength grouting material in the groove after cleaning, and manually rolling and pressing the surface;
d. and (3) constructing a waterproof reinforcing layer:
and (4) performing shot blasting on concrete on two sides of the construction joint by using a shot blasting machine, and performing construction on the waterproof reinforcing layer after cleaning the base layer.
2. The method for constructing a waterproof structure of a floor slab concrete construction joint according to claim 1, wherein: in the step a, the model of the angle steel is L30 x 3 mm.
3. The method for constructing a waterproof structure of a floor slab concrete construction joint according to claim 1, wherein: in the step d, the concrete construction mode of the waterproof reinforcing layer is as follows: the method comprises the steps of uniformly brushing a first high polymer modified asphalt waterproof coating in a construction range, paving glass fiber cloth, brushing a second high polymer modified asphalt waterproof coating, and paving a high polymer modified asphalt waterproof coiled material, wherein the waterproof coiled material is subjected to edge sealing by adopting the waterproof coating.
4. The method for constructing a waterproof structure of a floor slab concrete construction joint according to claim 1, wherein: the waterproof reinforced layer is arranged in the range of 500mm on two sides of the construction joint.
5. A waterproof structure of a building bearing plate concrete construction joint, which adopts the construction method of any one of claims 1 to 4, and is characterized in that: the high-strength concrete grouting material comprises a high-strength grouting material and a waterproof reinforcing layer, wherein a groove is prefabricated at the top of a construction joint along the construction joint, the groove is filled with the high-strength concrete grouting material, and the waterproof reinforcing layer is arranged on two sides of the construction joint and along the construction joint.
6. The waterproof structure of floor slab concrete construction joint of claim 5, characterized in that: the waterproof reinforcing layer sequentially comprises a first high polymer modified asphalt waterproof coating, glass fiber cloth, a second high polymer modified asphalt waterproof coating and a high polymer modified asphalt waterproof coiled material from bottom to top.
7. The waterproof structure of floor slab concrete construction joint of claim 6, characterized in that: the thickness of the first and second high polymer modified asphalt waterproof coatings is 1mm, and the thickness of the high polymer modified asphalt waterproof coiled material is 3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110728073.2A CN113431215A (en) | 2021-06-29 | 2021-06-29 | Waterproof structure of building bearing plate concrete construction joint and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110728073.2A CN113431215A (en) | 2021-06-29 | 2021-06-29 | Waterproof structure of building bearing plate concrete construction joint and construction method thereof |
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| CN113431215A true CN113431215A (en) | 2021-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110728073.2A Withdrawn CN113431215A (en) | 2021-06-29 | 2021-06-29 | Waterproof structure of building bearing plate concrete construction joint and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114941382A (en) * | 2022-05-31 | 2022-08-26 | 中建八局总承包建设有限公司 | Concrete structure and steel stair waterproof node and construction method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1122394A (en) * | 1997-06-27 | 1999-01-26 | Shiyuto Kosoku Doro Kodan | Water leakage stop processing method of expansion joint of tunnel |
| JP2004108073A (en) * | 2002-09-20 | 2004-04-08 | Tanimura:Kk | Waterproof repair method for roof floor of building of precast (pc) board construction |
| CN202706232U (en) * | 2012-07-17 | 2013-01-30 | 叶香菲 | Basement deformation joint structure |
| CN204282409U (en) * | 2014-11-28 | 2015-04-22 | 朱凯杰 | Novel ater-casting transverse crack control structure |
| CN204418231U (en) * | 2015-01-15 | 2015-06-24 | 金陵科技学院 | A kind of underground concrete exterior wall shrinkage joint water-tight device |
| CN207277845U (en) * | 2017-09-29 | 2018-04-27 | 上海森信建设集团有限公司 | Floor vertical construction joint plate bottom mortar leakage prevention constructing structure |
| CN109826158A (en) * | 2019-03-11 | 2019-05-31 | 中建四局第一建筑工程有限公司 | The production method and structure of a kind of interior canal storing facilities of water waterproof layer |
| CN209011307U (en) * | 2018-10-25 | 2019-06-21 | 沈阳天兴建筑工程有限公司 | A kind of wall is equipped with the node structure of deformation joint with floorboard junction |
-
2021
- 2021-06-29 CN CN202110728073.2A patent/CN113431215A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1122394A (en) * | 1997-06-27 | 1999-01-26 | Shiyuto Kosoku Doro Kodan | Water leakage stop processing method of expansion joint of tunnel |
| JP2004108073A (en) * | 2002-09-20 | 2004-04-08 | Tanimura:Kk | Waterproof repair method for roof floor of building of precast (pc) board construction |
| CN202706232U (en) * | 2012-07-17 | 2013-01-30 | 叶香菲 | Basement deformation joint structure |
| CN204282409U (en) * | 2014-11-28 | 2015-04-22 | 朱凯杰 | Novel ater-casting transverse crack control structure |
| CN204418231U (en) * | 2015-01-15 | 2015-06-24 | 金陵科技学院 | A kind of underground concrete exterior wall shrinkage joint water-tight device |
| CN207277845U (en) * | 2017-09-29 | 2018-04-27 | 上海森信建设集团有限公司 | Floor vertical construction joint plate bottom mortar leakage prevention constructing structure |
| CN209011307U (en) * | 2018-10-25 | 2019-06-21 | 沈阳天兴建筑工程有限公司 | A kind of wall is equipped with the node structure of deformation joint with floorboard junction |
| CN109826158A (en) * | 2019-03-11 | 2019-05-31 | 中建四局第一建筑工程有限公司 | The production method and structure of a kind of interior canal storing facilities of water waterproof layer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114941382A (en) * | 2022-05-31 | 2022-08-26 | 中建八局总承包建设有限公司 | Concrete structure and steel stair waterproof node and construction method thereof |
| CN114941382B (en) * | 2022-05-31 | 2023-12-08 | 中建八局总承包建设有限公司 | Waterproof node for concrete structure and steel stair and construction method thereof |
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Application publication date: 20210924 |