CN118029440A - Waterproof structure of post-cast strip of top plate and construction method of waterproof structure - Google Patents
Waterproof structure of post-cast strip of top plate and construction method of waterproof structure Download PDFInfo
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- CN118029440A CN118029440A CN202410173824.2A CN202410173824A CN118029440A CN 118029440 A CN118029440 A CN 118029440A CN 202410173824 A CN202410173824 A CN 202410173824A CN 118029440 A CN118029440 A CN 118029440A
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- post
- cast strip
- pouring
- waterproof
- top plate
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- 238000010276 construction Methods 0.000 title claims abstract description 41
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 72
- 239000010959 steel Substances 0.000 claims abstract description 72
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 238000005452 bending Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 7
- 238000009435 building construction Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 40
- 239000000463 material Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 4
- 229920002397 thermoplastic olefin Polymers 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000007888 film coating Substances 0.000 description 2
- 238000009501 film coating Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Landscapes
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
The invention relates to the technical field of building construction and discloses a waterproof structure of a top plate post-pouring belt and a construction method thereof. The two side wings of the externally attached water stop steel plate are pre-buried in the pre-cast top plates at the two sides, so that the connecting structure is simple, the construction is convenient, the top plate structure can be closed during the construction, sundries, rainwater and the like are prevented from entering the basement, and the water stop effect is good.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a waterproof structure of a post-pouring strip of a top plate. In addition, the invention also relates to a construction method for the waterproof structure of the top plate post-pouring strip.
Background
The conventional basement roof post-cast strip is pre-buried with two water-stop steel plates in the center of the structure, the two water-stop steel plates are welded on structural steel bars, the two water-stop steel plates are longitudinally overlapped and welded, and the water-stop steel plates are respectively buried in the pre-cast roof and the roof post-cast strip, so that the construction cost is high and the construction period is long. In addition, roof post-cast tapes are usually closed at the final stage of construction, and impurities and sewage easily enter the basement space during the open construction process, and cause water accumulation and even pollution inside the basement.
In summary, how to improve the construction efficiency and the water stopping effect of the post-cast strip of the top plate is a problem to be solved by those skilled in the art.
Disclosure of Invention
Therefore, the invention aims to provide the waterproof structure of the post-pouring strip of the top plate, two side wings of the externally attached water stop steel plate are pre-buried in the pre-pouring top plates at two sides, the connecting structure is simple, the construction is convenient, the top plate structure can be closed during the construction, and sundries, rainwater and the like are prevented from entering the interior of the basement.
In addition, the invention also provides a construction method for the waterproof structure of the top plate post-pouring strip.
In order to achieve the above object, the present invention provides the following technical solutions:
The utility model provides a waterproof structure of roof post-cast strip, includes post-cast strip supporting template, be equipped with outer subsides type stagnant water steel sheet on the post-cast strip supporting template, the both sides wing of outer subsides type stagnant water steel sheet is pour respectively in the first cast roof of both sides, both sides be equipped with the roof post-cast strip between the first cast roof, the first cast roof with be equipped with post-cast strip binding off wire net piece between the roof post-cast strip, post-cast strip binding off wire net piece is located the inboard at the both ends of outer subsides type stagnant water steel sheet, the top of first cast roof with the top of roof post-cast strip is equipped with waterproof additional layer and waterproof layer from bottom to top.
Preferably, the externally attached water stop steel plate comprises a horizontal plate and side wings arranged at two ends of the horizontal plate, wherein the horizontal plate is provided with a convex bending section for reserving deformation allowance, and the protruding direction of the bending section is the same as that of the side wings.
Preferably, the upper end face of the externally attached water stop steel plate is provided with a TPO (thermoplastic polyolefin) film coating layer or a PVC film coating layer.
A construction method for the roof post-cast strip waterproof construction of any one of the above, comprising:
installing a post-pouring belt supporting template;
an external water stop steel plate is arranged on the upper end surface of the post-pouring strip supporting template;
Arranging post-pouring strip closing-in steel wire meshes at the inner sides of two ends of the externally attached water stop steel plate;
Binding a roof structure steel bar;
Pouring a pre-cast top plate outside the steel wire mesh sheet of the closing-in of the post-cast strip;
pouring a top plate post-pouring belt between the pre-pouring top plates at two sides so as to seal a top plate structure;
and a waterproof additional layer and a waterproof layer are arranged on the upper end face of the top plate structure.
Preferably, the roof post-cast strip comprises micro-expansive concrete.
According to the waterproof structure of the top plate post-pouring belt, the two side wings of the externally attached water-stopping steel plate are respectively embedded in the pre-pouring top plates at the two sides, compared with the existing water-stopping steel plate structure, welding connection is not needed, construction is convenient and fast, and the connection strength of the externally attached water-stopping steel plate and the pre-pouring top plates is high;
Meanwhile, the externally attached water stop steel plate can seal the post-pouring zone area of the top plate structure, so that the hidden leakage trouble of the post-pouring zone area is reduced, sundries and rainwater can be prevented from entering the basement during construction, and the water stop effect of the top plate structure in construction is improved.
In addition, the invention also provides a construction method for the waterproof structure of the top plate post-pouring strip.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a specific embodiment of a waterproof construction of a roof post-cast strip provided by the invention.
In fig. 1:
The waterproof layer is formed by a post-cast strip supporting template 1, an external water stop steel plate 2, a pre-cast top plate 3, a post-cast strip closing steel wire mesh 4, a top plate post-cast strip 5, a waterproof layer 6 and a waterproof layer 7.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The core of the invention is to provide a waterproof structure of the post-pouring strip of the top plate, wherein the two side wings of the externally attached water stop steel plate are pre-buried in the pre-pouring top plates at the two sides, the connecting structure is simple, the construction is convenient, the top plate structure can be closed during the construction period, and sundries, rainwater and the like are prevented from entering the interior of a basement.
In addition, the invention also provides a construction method for the waterproof structure of the top plate post-pouring strip.
The invention provides a waterproof structure of a top plate post-pouring belt, which comprises a post-pouring belt supporting template 1, wherein an external water stop steel plate 2 is arranged on the post-pouring belt supporting template 1, two side wings of the external water stop steel plate 2 are respectively poured into pre-pouring top plates 3 at two sides, a top plate post-pouring belt 5 is arranged between the pre-pouring top plates 3 at two sides, a post-pouring belt closing steel wire net 4 is arranged between the pre-pouring top plates 3 and the top plate post-pouring belt 5, the post-pouring belt closing steel wire net 4 is arranged at the inner sides of two ends of the external water stop steel plate 2, and a waterproof additional layer 6 and a waterproof layer 7 are arranged above the pre-pouring top plates 3 and above the top plate post-pouring belt 5 from bottom to top.
The post-pouring strip supporting template 1 is mainly used for supporting an externally attached water stop steel plate 2 and is matched with the externally attached water stop steel plate 2 to serve as a bottom template of the top plate post-pouring strip 5; for specific types of the post-cast strip supporting forms 1, please refer to the actual production of the top plate post-cast strip supporting forms, and the description thereof will not be repeated here.
The length of the post-cast strip supporting form 1 is generally set to be greater than or equal to the length of the horizontal plate of the externally attached water stop steel plate 2, and the width of the post-cast strip supporting form 1 is greater than or equal to the width of the externally attached water stop steel plate 2 so as to effectively support the externally attached water stop steel plate 2.
The externally attached water stop steel plate 2 is arranged at the bottom of the top plate structure through the post-pouring strip supporting template 1, so that the basement can be closed in the construction process, pollution and ponding of the basement caused by sundries and rainwater entering the basement are avoided, and downward leakage of moisture in a post-pouring strip area can be prevented.
The two ends of the external-attached water-stopping steel plate 2 are pre-buried in the pre-pouring top plate 3, so as to prevent water from leaking between the pre-pouring top plate 3 and the top plate post-pouring belt 5, and the two ends of the external-attached water-stopping steel plate 2 are tilted upwards to form side wings; the length and the inclination angle of the side wings are determined according to the hydrologic conditions of the construction site in actual production and other factors.
Considering the stress condition of the roof structure, preferably, the externally attached water stop steel plate 2 can be provided to comprise a horizontal plate and side wings arranged at two ends of the horizontal plate, the horizontal plate is provided with a convex bending section for reserving deformation allowance, the convex direction of the bending section is the same as that of the side wings, and the bending section can be specifically provided as a rectangular bulge, a trapezoid bulge, an arc bulge and the like.
In order to enhance the water-stopping effect of the external water-stopping steel plate 2, it is preferable to provide a TPO film layer or PVC film layer on the upper end surface of the external water-stopping steel plate 2, which is waterproof, antifouling and corrosion-resistant, and can significantly enhance the waterproof effect and the service life of the external water-stopping steel plate 2.
Of course, when the cost budget is high, the TPO film layer or PVC film layer may be provided at both the upper and lower ends of the external water stop steel plate 2.
A post-pouring strip closing-in steel wire net sheet 4 is arranged between the pre-pouring top plate 3 and the top plate post-pouring strip 5, and the post-pouring strip closing-in steel wire net sheet 4 can prevent concrete from overflowing to a post-pouring strip area when the pre-pouring top plate 3 is poured, so that the pre-pouring top plate 3 and the top plate post-pouring strip 5 are separated; the material, structure and size of the post-pouring strip closing-in steel wire mesh 4 are determined according to the actual production needs by referring to the prior art, and are not described herein.
In order to enable the two side wings of the external water stop steel plate 2 to be pre-buried in the pre-cast top plate 3, the post-cast strip closing-in steel wire meshes 4 are arranged on the inner sides of the two ends of the external water stop steel plate 2; the distance L between the post-pouring strip closing-in steel wire mesh 4 and the end of the external water stop steel plate 2 determines the length d of the part of the external water stop steel plate 2 pre-buried in the pre-pouring top plate 3, and the distance L is generally set to be 10-200mm.
In order to avoid the infiltration of moisture from the top of the top plate structure, a waterproof layer 6 and a waterproof layer 7 are sequentially arranged above the top plate structure from bottom to top, wherein the waterproof layer 7 generally covers the whole top plate structure, and the waterproof layer 6 is arranged in the post-pouring zone region and the connecting region of the post-pouring zone region and the pre-pouring zone region.
The waterproof layer 6 and the waterproof layer 7 can be specifically set as a waterproof coiled material layer, a waterproof coating layer and the like, and in order to ensure the waterproof effect, the construction methods of the waterproof layer 6 and the waterproof layer 7 are required to meet the mandatory requirements of the general building and municipal building waterproof standard GB 55030-2022.
The specific materials, the number of layers, the size, the connection mode and the like of the waterproof layer 6 and the waterproof layer 7 are determined according to the prior art in actual production; the additional layer of water resistance 6 is typically provided to include at least one layer of water resistant roll material with an edge of the water resistant roll material layer at least 100mm beyond the edge of the top sheet post-cast strip 5; the waterproof layer 7 is 2 to 3 waterproof coiled material layers, and two adjacent waterproof coiled material layers are directly bonded and connected or connected in a wet paving mode.
In a specific embodiment, the waterproof layer 7 is a 1-2 waterproof coiled material layer compounded by a 1-layer waterproof coating, and the waterproof additional layer 6 of the waterproof coating is a glass fiber cloth carcass reinforcing layer.
In the embodiment, the two side wings of the externally attached water stop steel plate 2 are respectively embedded in the pre-cast top plates 3 at the two sides, compared with the existing water stop steel plate structure, welding connection is not needed, construction is convenient and fast, and the connection strength of the externally attached water stop steel plate 2 and the pre-cast top plates 3 is high;
meanwhile, the externally attached water stop steel plate 2 can seal the post-pouring zone area of the top plate structure, so that the hidden danger of leakage in the post-pouring zone area is reduced, sundries and rainwater can be prevented from entering the basement during construction, and the water stop effect of the top plate structure in construction is improved.
In addition to the roof post-cast strip waterproof construction described above, the present invention also provides a construction method including the roof post-cast strip waterproof construction disclosed in the above embodiment, comprising:
Step S1, installing a post-pouring belt supporting template 1;
step S2, arranging an externally attached water stop steel plate 2 on the upper end surface of the post-pouring strip supporting template 1;
Step S3, arranging post-pouring strip closing-in steel wire meshes 4 on the inner sides of two ends of the externally attached water stop steel plate 2;
s4, binding a roof structure steel bar;
s5, pouring a pre-cast top plate 3 on the outer side of the steel wire mesh sheet of the closing-in of the post-cast strip;
s6, pouring a top plate post-pouring belt 5 between the pre-pouring top plates 3 on two sides so as to seal the top plate structure;
in step S7, a waterproof layer 6 and a waterproof layer 7 are provided on the upper end surface of the top plate structure.
The step S2 needs to be described, and considering that the two ends of the externally attached water stop steel plate 2 are provided with the side wings, the externally attached water stop steel plate 2 can be horizontally stacked and transported after rolling, and can also be stacked and transported in the form of an unrerolled horizontal steel plate and rolled and formed on a construction site.
It should be noted that in step S4, the structural main rib of the top plate structure is disposed through the pre-cast top plate 3 and the top plate post-cast strip 5, that is, the structural main rib is not disconnected in the post-cast strip region.
In step S6, to enhance the connection performance between the top plate 3 and the post-cast strip 5, the post-cast strip 5 is usually made of micro-expansion concrete, and the micro-expansion concrete can expand to a certain extent under the action of the expanding agent during hydration to compensate for shrinkage of the concrete, so that obvious cracks can be prevented and cured at the joints of the post-cast strip 5 and the pre-cast strip 3.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The waterproof structure of the top plate post-pouring belt and the construction method thereof provided by the invention are described in detail. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (5)
1. The utility model provides a roof post-cast strip waterproof construction, its characterized in that, including post-cast strip supporting form board (1), be equipped with on post-cast strip supporting form board (1) outer subsides stagnant water steel sheet (2), the both sides wing of outer subsides stagnant water steel sheet (2) is pour respectively in the top board of watering earlier of both sides (3), both sides be equipped with roof post-cast strip (5) between top board (3) earlier, top board (3) earlier with be equipped with post-cast strip binding off wire net piece (4) between roof post-cast strip (5), post-cast strip binding off wire net piece (4) are located the inboard at the both ends of outer subsides stagnant water steel sheet (2), the top of top board (3) earlier with the top of roof post-cast strip (5) is equipped with waterproof additional layer (6) and waterproof layer (7) from bottom to top.
2. The waterproof construction of the post-cast strip of the top plate according to claim 1, wherein the externally attached water stop steel plate (2) comprises a horizontal plate and the side wings arranged at two ends of the horizontal plate, the horizontal plate is provided with a convex bending section for reserving a deformation allowance, and the convex direction of the bending section is the same as the convex direction of the side wings.
3. The waterproof construction of the roof post-cast strip according to any one of claims 1 to 2, characterized in that the upper end face of the externally attached water stop steel plate (2) is provided with a TPO film layer or a PVC film layer.
4. A construction method for the roof post-cast strip waterproof construction of any one of claims 1 to 3, comprising:
installing a post-pouring belt supporting template (1);
An externally attached water stop steel plate (2) is arranged on the upper end surface of the post-pouring belt supporting template (1);
the inner sides of the two ends of the external water stop steel plate (2) are provided with post-pouring strip closing-in steel wire meshes (4);
Binding a roof structure steel bar;
Pouring a pre-cast top plate (3) outside the post-cast strip closing-in steel wire mesh (4);
pouring a top plate post-pouring belt (5) between the pre-pouring top plates (3) at two sides so as to seal a top plate structure;
and a waterproof additional layer (6) and a waterproof layer (7) are arranged on the upper end surface of the top plate structure.
5. Construction method according to claim 4, characterized in that the roof post-cast strip (5) comprises micro-expansive concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410173824.2A CN118029440A (en) | 2024-02-07 | 2024-02-07 | Waterproof structure of post-cast strip of top plate and construction method of waterproof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410173824.2A CN118029440A (en) | 2024-02-07 | 2024-02-07 | Waterproof structure of post-cast strip of top plate and construction method of waterproof structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118029440A true CN118029440A (en) | 2024-05-14 |
Family
ID=90999915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410173824.2A Pending CN118029440A (en) | 2024-02-07 | 2024-02-07 | Waterproof structure of post-cast strip of top plate and construction method of waterproof structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118029440A (en) |
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2024
- 2024-02-07 CN CN202410173824.2A patent/CN118029440A/en active Pending
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