CN216948826U - Sealing protection structure of PC building joint - Google Patents
Sealing protection structure of PC building joint Download PDFInfo
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- CN216948826U CN216948826U CN202123280526.4U CN202123280526U CN216948826U CN 216948826 U CN216948826 U CN 216948826U CN 202123280526 U CN202123280526 U CN 202123280526U CN 216948826 U CN216948826 U CN 216948826U
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Abstract
The utility model discloses a sealing protection structure of a PC building joint, which comprises a first wall body base body and a second wall body base body, wherein the first wall body base body and the second wall body base body are used for assembly; the gap between the first wall body base body and the second wall body base body is connected through a sealing protection structure; the seal protection structure includes: and respectively and sequentially coating a wall joint sealing layer and a wall joint bottom coating on the surface of the gap between the first wall body base body and the second wall body base body from inside to outside, placing a foam strip in the gap between the first wall body base body and the second wall body base body, and sealing a wall joint sealing adhesive layer for sealing the gap between the first wall body base body and the second wall body base body. The design of the utility model improves the reliability and durability of the sealing protection structure of the PC building joint, simultaneously reduces partial operation flows in the prior art, reduces the construction difficulty and obviously improves the comprehensive work efficiency.
Description
Technical Field
The utility model relates to a sealing and protecting structure for a building joint, in particular to a sealing and protecting structure for a PC building joint, and belongs to the technical field of sealing and protecting of building engineering.
Background
A large number of building joints are generated after the outer wall boards or the outer wall components of the assembly type building (namely the PC building) are spliced, and the problems of rain prevention outside the joints and internal leakage prevention are inevitably caused. In JGJ 1-2014 technical Specification for prefabricated concrete structures, clause 5.3.4 specifies: the waterproof weak parts such as joints of the prefabricated external wall panel, door and window openings and the like are preferably made by combining waterproof materials and waterproof structures. In recent years, newly-developed environment-friendly energy-saving assembly type buildings begin to appear, the outer walls of the assembly type buildings are mostly combined by prefabricated components, a plurality of seams naturally exist after the shear walls are connected with a main body structure through specially-designed connecting pieces, the seams can directly cause the problems of inaccurate heat preservation, water seepage, flaws in the structure and the like of the buildings, wherein the seams are mainly divided into three types, namely vertical seams, horizontal seams or horizontal seams and cross seams, the conventional seam treatment process comprises the steps of cleaning a base layer, snapping lines, inserting foam strips, adhering masking paper, gluing and sealing, performing surface scraping treatment, tearing off the masking paper, curing and waterproof experiments, but in practical application, a drainage pipe head is connected to the lower end of the foam strips in the vertical seams, but the drainage pipe head can only discharge seepage water in the foam strips, and in the outer walls of the assembly type buildings, the positions for treating the foam strips have seepage water, the existence of infiltration is also had at prefabricated component inside and sealed glue department in fact, so the effective discharge of infiltration of other positions in the building outer wall can not be effectively with the drainage tube head, so, in the long time, the infiltration can be more serious.
CN200920318361.5 discloses prefabricated exterior wall panel multichannel waterproof construction in building engineering technical field, includes: side fascia, sealing strip, PVC plastic sheet, the layer of caulking, sealing layer and honeycomb duct, wherein: the inside of side fascia is equipped with level or vertical decompression cavity, and the sealing rod is located the side fascia and is linked together with the decompression cavity of a plurality of adjacent side fascia, and PVC plastic sheet, layer and sealing layer of caulking set gradually in the other end of decompression cavity from outer to inner, and the honeycomb duct is located the outside of side fascia and is connected with the sealing layer. CN 202120317629.4A repairable flexible concrete splice joint structure, there are foaming stick and elastic sealant in the position of seam between new structure and existing structure, wherein the foaming stick is shaped and solidified and set up between new structure and existing structure, the elastic sealant is set up above the foaming stick and located in the seam; the novel elastic concrete pavement structure is characterized in that a joint groove is formed between a pavement layer of the new structure and a pavement layer of the existing structure, the joint groove is located above a gap between the new structure and the existing structure, a stainless steel plate is arranged in the joint groove, the stainless steel plate covers the gap, and elastic concrete is paved in the joint groove. CN201710176720.7 discloses an assembled prefabricated outer wall joint structure and a bare concrete outer wall construction method, wherein heat preservation strips are fixedly connected between middle-layer heat preservation plates at vertical joints in a plugging manner, vertical backing rods are plugged between outer-layer panels, vertical pressure reduction cavities are formed between the vertical backing rods and the heat preservation strips, and vertical joint glue is fully coated on the outer side surfaces of the vertical backing rods; horizontal backing rods are plugged between the outer-layer panels, horizontal decompression cavities are formed between the horizontal backing rods and the PE waterproof sealing plates, horizontal joint glue is fully coated on the outer side surfaces of the horizontal backing rods, the vertical decompression cavities and the horizontal decompression cavities are communicated at the cross joints, and drainage structures are arranged at the communicated positions. CN201721876336.X discloses an industrialized building seam sealing waterproof structure, which comprises a jointed board a and a jointed board b, wherein a jointed board a substrate, a jointed board a surface cleaning layer, a jointed board a surface hydrophobic layer, a jointed board a surface primer layer, a waterproof sealing adhesive layer, a jointed board b surface primer layer, a jointed board b surface hydrophobic layer, a jointed board b surface cleaning layer and a jointed board b substrate are arranged inwards along two building external wall jointed board seam substrates in sequence.
The existing sealing waterproof structure technology utilizes the comprehensive effects of sealing, dewatering and water blocking, and achieves a certain effect of sealing and waterproofing, and when the existing sealing waterproof structure is implemented on site, firstly, masking protection needs to be carried out on two sides of the outer surface of a seam by adopting masking paper or adhesive tapes (shown in figure 1) during the construction of a sealing layer, and the masking protection needs to be carried out in time after the operation is finished, so that the construction process and the operation cost are increased, the material consumption is increased, and a certain quality hidden danger exists on a structural finished product; secondly, the arrangement range of the existing sealing layer is limited to the inside of a wall joint, and after the sealing layer is frequently stretched and compressed when the wall body is displaced, the problems that the sealing layer and the bonding edge of the wall body are easily pulled off and torn and the like are caused; and thirdly, because the surface of the wall body around the gap (such as the area adhered with the seam beautifying paper) is not subjected to sealing protection or strengthening treatment, moisture of the wall body after being wetted or rained can quickly infiltrate into the sealing layer part of the wall gap through the capillary action of the concrete structure, and the sealing and waterproof structure of the gap can be damaged in an accelerated way due to the long-term invasion and the action of other environmental factors.
Disclosure of Invention
Aiming at the problems of the prior art of the PC building joint sealing and protecting structure, the utility model provides a novel PC building joint sealing and protecting structure, which combines the actual working condition and the sealing and protecting requirement of the PC building engineering joint in China and the subsequent decoration or protection measure of the whole PC building wall body after sealing, in particular the special requirement on appearance of the PC building joint sealing structure because the decoration and protection are additionally required after the surface sealing treatment of the joint of the inner wall and the outer wall of the PC building in China, therefore, the utility model simplifies the sealing treatment of the seam of the inner wall of the seam, and simultaneously carries out sealing protection on the surface of the outer wall of the seam, although the sealing protection work amount is increased, the operation flows of seam beautifying paper and the like are reduced, the construction difficulty is greatly reduced, meanwhile, the reliability and the durability of the whole PC building joint sealing protection structure are obviously improved, and the comprehensive work efficiency is obviously improved.
The specific technical scheme of the utility model is as follows: a sealing protection structure of a PC building joint comprises a first wall body base body and a second wall body base body, wherein the first wall body base body and the second wall body base body are used for assembly; the gap between the first wall body base body and the second wall body base body is connected through a sealing protection structure; the seal protection structure includes: and respectively and sequentially coating a wall joint sealing layer and a wall joint bottom coating on the surface of the gap between the first wall body base body and the second wall body base body from inside to outside, placing a foam strip in the gap between the first wall body base body and the second wall body base body, and using a wall joint sealant layer for sealing the gap between the first wall body base body and the second wall body base body.
The wall seam sealing layer is a primer in the prior art; the wall seam bottom coating (5) adopts a sealant in the prior art; the primer and the sealant are used for treating the PC building wall with a clean surface, so that good infiltration and sealing protection are realized, corrosion of corrosive media in the environment to a concrete structure is prevented, and the mechanical property, corrosion resistance and carbonization resistance of the concrete surface can be obviously improved; the primer, epoxy coating and the like in the prior art are adopted to perform coating protection on the sealing layer, the formed primer layer is compounded with the sealing layer, the protection effect on the concrete matrix is further promoted, and in addition, the reliable and durable sealing glue layer is formed for sealing and gluing the sealant.
The utility model relates to a preferable scheme of a sealing and protecting structure of a PC building joint, which comprises the following steps: the wall seam sealing layer and the wall seam bottom coating respectively extend along the outer surfaces of the first wall body base body and the second wall body base body; the extending length is not less than 50mm from the outer edge of the gap between the first wall body base body and the second wall body base body.
The utility model relates to a preferable scheme of a sealing and protecting structure of a PC building joint, which comprises the following steps: the wall seam sealing layer and the wall seam bottom coating are 2 layers; the thickness of the wall seam bottom coating is 10-50 mu m.
The utility model relates to a preferable scheme of a sealing and protecting structure of a PC building joint, which comprises the following steps: the thickness of the wall seam sealant layer is required to be filled in the gap between the first wall body base body and the second wall body base body.
The utility model relates to a preferable scheme of a sealing and protecting structure of a PC building joint, which comprises the following steps: the wall seam sealant layer extends along the outer surfaces of the first wall body base body and the second wall body base body; and the thickness of the extension portion is not less than 2 mm.
The tensile resistance, the sealing performance and the durability of the wall seam sealing adhesive layer are greatly reduced when the wall seam sealing adhesive layer is too thin, tests and researches show that the sealing adhesive layer is not less than 2mm, so that the sealing adhesive layer can be ensured to have better tensile resistance, sealing performance and durability, and if a decorative protective layer is additionally arranged on the surface of the sealing adhesive layer, the reliability and the durability of the sealing adhesive layer are further improved.
As a preferred scheme of the sealing protection structure of the PC building joint, the sealing protection structure comprises the following steps: and the surface of the sealing protection structure is also provided with a PC wall surface decorative protection layer.
The utility model has the following beneficial effects: the utility model also performs sealing protection on the surface of the outer wall of the joint while performing sealing treatment on the inside of the joint, thereby obviously improving the reliability and durability of the whole PC building joint sealing protection structure; the utility model removes the seam paper, can reduce 2 operation processes, saves materials and labor and greatly reduces the construction difficulty. The utility model obviously improves the comprehensive work efficiency and can obtain good technical effect and comprehensive benefit.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic view of the structure of the decorative protective layer on the surface of the PC wall;
FIG. 4 is a schematic illustration of epitaxial length;
in the figure: 1-a first wall body base; 2-a second wall body base; 3-sealing the protective structure; 4-wall seam sealing layer; 5-wall joint bottom coating; 6-foam strip; 7-a wall seam sealing glue layer; 8-PC wall surface decorative protective layer.
Detailed Description
An embodiment of the utility model is further described below with reference to the accompanying drawings:
example 1
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the present invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
As shown in fig. 1, 2 and 3, a sealing and protecting structure for a PC building joint comprises a first wall base body 1 and a second wall base body 2 for assembly; the gap between the first wall body base body 1 and the second wall body base body 2 is connected through a sealing protection structure 3; the seal guard structure 3 comprises: and respectively and sequentially coating a wall joint sealing layer 4 and a wall joint bottom coating layer 5 on the surface of the gap between the first wall body base body 1 and the second wall body base body 2 from inside to outside, placing a foam strip 6 in the gap between the first wall body base body 1 and the second wall body base body 2, and placing a wall joint sealing glue layer 7 for sealing the gap between the first wall body base body 1 and the second wall body base body 2.
The wall seam sealing layer 4 and the wall seam bottom coating layer 5 respectively extend along the outer surfaces of the first wall body base body 1 and the second wall body base body 2; the extension length is not less than 50mm from the outer edge of the gap between the first wall substrate 1 and the second wall substrate 2.
The wall seam sealing layer 4 and the wall seam bottom coating 5 are 2 layers; the thickness of the wall seam bottom coating 5 is 10-50 mu m.
The thickness of the wall seam sealant layer 7 should be filled in the gap between the first wall body base body 1 and the second wall body base body 2.
The wall seam sealant layer 7 extends along the outer surfaces of the first wall body base body 1 and the second wall body base body 2; and the thickness of the extension portion is not less than 2 mm.
And a PC wall surface decorative protective layer 8 is further arranged on the surface of the sealing protective structure 3.
Specifically, as shown in fig. 4, the length a of the wall joint sealing layer 4 and the wall joint bottom coating layer 5 extending along the outer surfaces of the first wall body base 1 and the second wall body base 2 is greater than the length b of the wall joint sealant layer 7 extending along the outer surfaces of the first wall body base 1 and the second wall body base 2.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing detailed description, or equivalent arrangements may be substituted for those skilled in the art. All equivalent structures made by using the contents of the specification and the attached drawings of the utility model can be directly or indirectly applied to other related technical fields, and are also within the protection scope of the patent of the utility model.
Claims (1)
1. A sealing protection structure of a PC building joint comprises a first wall body base body (1) and a second wall body base body (2) which are used for assembly; the gap between the first wall body base body (1) and the second wall body base body (2) is connected through a sealing protection structure (3); the method is characterized in that: the sealing and protection structure (3) comprises: respectively and sequentially coating a wall joint sealing layer (4) and a wall joint bottom coating (5) on the surface of a gap between the first wall body base body (1) and the second wall body base body (2) from inside to outside, placing a foam strip (6) in the gap between the first wall body base body (1) and the second wall body base body (2), and placing a wall joint sealing adhesive layer (7) for sealing the gap between the first wall body base body (1) and the second wall body base body (2);
the wall joint sealing layer (4) and the wall joint bottom coating (5) respectively extend along the outer surfaces of the first wall body base body (1) and the second wall body base body (2); the extending length is not less than 50mm from the outer edge of the gap between the first wall body base body (1) and the second wall body base body (2);
the wall joint sealing layer (4) and the wall joint bottom coating (5) are both 2 layers; the thickness of the wall seam bottom coating (5) is 10-50 mu m;
the thickness of the wall seam sealant layer (7) is required to be filled in the gap between the first wall body base body (1) and the second wall body base body (2);
the wall seam sealant layer (7) extends along the outer surfaces of the first wall body base body (1) and the second wall body base body (2); and the thickness of the extension part is not less than 2 mm;
and the surface of the sealing protection structure (3) is also provided with a PC wall surface decorative protective layer (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202123280526.4U CN216948826U (en) | 2021-12-24 | 2021-12-24 | Sealing protection structure of PC building joint |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123280526.4U CN216948826U (en) | 2021-12-24 | 2021-12-24 | Sealing protection structure of PC building joint |
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| CN216948826U true CN216948826U (en) | 2022-07-12 |
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| CN202123280526.4U Active CN216948826U (en) | 2021-12-24 | 2021-12-24 | Sealing protection structure of PC building joint |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319610A (en) * | 2021-12-18 | 2022-04-12 | 山西省安装集团股份有限公司 | Assembled frame and construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319610A (en) * | 2021-12-18 | 2022-04-12 | 山西省安装集团股份有限公司 | Assembled frame and construction method |
| CN114319610B (en) * | 2021-12-18 | 2023-12-01 | 山西省安装集团股份有限公司 | Assembled frame and construction method |
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