CN209837324U - Tooth-groove type waterproof connecting structure for prefabricated wallboard of prefabricated building by vertical joint grouting method - Google Patents
Tooth-groove type waterproof connecting structure for prefabricated wallboard of prefabricated building by vertical joint grouting method Download PDFInfo
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- CN209837324U CN209837324U CN201920068931.3U CN201920068931U CN209837324U CN 209837324 U CN209837324 U CN 209837324U CN 201920068931 U CN201920068931 U CN 201920068931U CN 209837324 U CN209837324 U CN 209837324U
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Abstract
The utility model provides a vertical seam grouting method tooth's slot type waterproof connection structure of prefabricated wallboard of assembly type structure, includes the prefabricated wallboard of assembly type concrete that a plurality of heads and tails connected gradually, the one end joint side of the prefabricated wallboard of assembly type concrete has trapezoidal recess along the vertical prefabrication of wallboard, and the vertical prefabrication of other end joint side wallboard has the trapezoidal dogtooth that corresponds with trapezoidal recess, and is adjacent the prefabricated wallboard of assembly type concrete connects the back, one section distance in interval forms the seam between trapezoidal recess and the trapezoidal dogtooth opposite face, the seam is close to the opening of outer wall face and interior wall face and passes through waterproof sealing material and seal, it has waterproof mortar to pour into in the seam. The utility model discloses the waterproof problem of assembly type structure wallboard has thoroughly been solved to assembly type structure's waterproof performance and production efficiency have been improved.
Description
Technical Field
The utility model belongs to the technical field of building engineering, especially, relate to a vertical seam grouting method tooth slot type waterproof connection structure of prefabricated wallboard of assembly type structure.
Background
The prefabricated concrete structure is a structure formed by standardized production of various structural components including prefabricated shear walls, prefabricated beams, prefabricated columns, prefabricated floor slabs, prefabricated wall slabs and the like in a factory and then installation through bolt connection, welding connection or cast-in-place connection in a construction site. The prefabricated components of the prefabricated concrete structure are produced industrially, so that the prefabricated concrete structure has the advantages of saving labor force, being fast in construction progress, being beneficial to realizing building energy conservation, being convenient for industrial production and mechanical construction and the like, and is suitable for the development direction of building industrialization in China. But the assembled structure has a large number of splicing seams, especially the splicing seam leakage is easy to occur at the wallboard seam which is in direct contact with rainwater, and meanwhile, the difficulty of leakage treatment of the assembled building is greatly increased due to the difficult repairability of the composite heat-insulation wallboard. Therefore, the key to the waterproof of the fabricated building is the sealing and waterproofing of the splicing seams of the wall panels.
The joint between the prefabricated wall boards is divided into horizontal joint and vertical joint, and there are two common waterproof sealing methods, namely, waterproof in cavity and waterproof in material. The cavity water prevention is that sealing strips or cast-in-place concrete are adopted to form secondary sealing on the inner wall surface of the abutted seam according to different structures and functions of the wall plate, the two sealing forms a cavity to form a vertical cavity, and rainwater entering the cavity can smoothly flow down; the waterproof form of the joint of the external wall panel is the most applied form at present, and has the advantages of simple and quick construction, and the defects that the waterproof material is easy to age and crack under long-term environment, and the shear deformation of the wall panel aggravates the crack of the waterproof material to cause water seepage. The waterproof effect of the outer wall is not obvious, and after the waterproof material is aged and cracked, no further construction measures are taken for waterproofing. Waterproof quality is difficult to control, and the cavity blocks up the condition and takes place occasionally, in case inboard concrete takes place the fracture and directly leads to the waterproof failure of wallboard. The waterproof material is prepared by embedding sealing materials into the outer wall surface of the joint, wherein the parts such as high and low joints, grooves and tongues and the like are reserved at the upper beam end and the lower beam end of the prefabricated wall board. The disadvantage is that the waterproof material is prone to ageing. The existing common waterproof structure of the wallboard has the defects that the waterproof effect is not obvious, and no further structural measures are taken for waterproofing after the waterproof coating is aged. Therefore, water leakage occurs in the long-term environment, and the quality of the fabricated building is affected.
SUMMERY OF THE UTILITY MODEL
The utility model provides a prior art not enough and provide a simple structure, simple to operate, extension prefabricated wallboard life, improve the waterproof connection structure of prefabricated wallboard vertical seam grouting method tooth slot type of prefabricated building of security.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a vertical seam grouting method tooth's slot type waterproof connection structure of prefabricated wallboard of assembly type structure, includes the prefabricated wallboard of assembly type concrete that a plurality of heads and tails connected gradually, the one end joint side of the prefabricated wallboard of assembly type concrete has trapezoidal recess along the vertical prefabrication of wallboard, and the vertical prefabrication of other end joint side wallboard has the trapezoidal dogtooth that corresponds with trapezoidal recess, and is adjacent the prefabricated wallboard of assembly type concrete connects the back, one section distance in interval forms the seam between trapezoidal recess and the trapezoidal dogtooth opposite face, the seam is close to the opening of outer wall face and interior wall face and passes through waterproof sealing material and seal, it has waterproof mortar to pour into in the seam.
Further, the seam includes middle part cavity and both sides seam opening, trapezoidal convex tooth bulge length is less than trapezoidal recess concave part 50mm-80mm, forms the cavity of pouring waterproof mortar, and adjacent the trapezoidal recess of prefabricated wallboard of assembled concrete and trapezoidal convex tooth butt joint back, both sides seam opening width is 20mm-30 mm.
Furthermore, seam opening one side that is close to the outer wall face is sealed through polyurethane with the seam opening behind the polyethylene rod shutoff seam opening earlier, and the seam opening that is close to inner wall face one side seals the seam opening through hard plastic sheet earlier, and the sealed seam opening of the fire-resistant waterproof sealant of reuse high elasticity. This scheme adopts three waterproof construction: firstly, adopting a polyethylene bar material for sealing the outer wall surface at the joint of the outer wall plates of the prefabricated concrete wallboard, and sealing the outer wall surface by using polyurethane; the joint of the inner wall plate of the prefabricated concrete wallboard adopts a hard plastic sheet cover seam, and after the hard plastic sheet is fixed by a cement nail for standby use, the hard plastic sheet is sealed by a high-elasticity fireproof waterproof sealant to eliminate pressure difference. Therefore, the waterproof structure adopts various waterproof measures and comprehensive prevention and control, thoroughly solves the waterproof problem of the external wall panel, provides reliable waterproof guarantee for the assembly type building, and greatly improves the production efficiency and the building quality of the assembly type building.
Furthermore, the opposite surfaces of the trapezoidal grooves and/or the trapezoidal convex teeth are pre-pasted with the polyethylene bars and thin pipes for grouting.
Further, the waterproof mortar is flexible waterproof mortar.
The utility model discloses a tooth's socket formula structure is waterproof, adopts the theory that water shutoff and hydrophobic combined together, and unsmooth cavity fills the wholeness of the adjacent assembled concrete prefabricated wallboard of waterproof mortar reinforcing, reduces adjacent assembled concrete prefabricated wallboard shear deformation, and the cavity fills the sealed water shutoff of waterproof mortar and handles and also greatly improved waterproof performance. The waterproof bars arranged at the joints can effectively drain water, so that rainwater is prevented from infiltrating the inner wall surface under the capillary action, and the combination of water plugging and drainage is achieved. And the utility model discloses a concavo-convex structure is not used for general concavo-convex structure, and its concavo-convex shape is trapezoidal for thereby the cavity that forms can make flexible waterproof mortar abundant make waterproof performance further improvement with wallboard butt joint face contact after pouring flexible waterproof mortar, and this kind of trapezoidal concavo-convex structure can improve the ability of shearing of wall body seam crossing, makes the wall body wholeness can improve to some extent.
The utility model can effectively prevent rainwater from entering the interior of the outer wall, effectively reduce water accumulation and water seepage phenomena, and enable the outer wall to be connected into a whole, thereby improving the integrity of the assembled outer wall; the utility model discloses according to assembled building perps connection structure's special construction process, the utility model discloses improved traditional assembled outer wall seam crossing waterproof performance, the industrial production of being convenient for can extensively apply to prefabricated assembly structure wallboard. And its simple structure, installation construction is convenient.
To sum up, the utility model discloses be favorable to industrial production and on-the-spot erection and construction, and guarantee that waterproof material can be effectively waterproof after ageing, can not stay the watermark outside the exterior wall, also can not produce ponding outside the exterior wall the inside, prolong prefabricated wallboard life, improve the security to simple structure, simple to operate. The utility model discloses the waterproof problem of assembly type structure wallboard has thoroughly been solved to assembly type structure's waterproof performance and production efficiency have been improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of a concave-convex tongue-and-groove waterproof structure implemented by the present invention.
In the attached drawings, 1, prefabricated concrete prefabricated left wall board; 2. prefabricating a right wallboard by using the fabricated concrete; 3. a cavity; 4. an inner wall surface; 5. flexible waterproof mortar; 6. a polyethylene rod; 7. a polyurethane sealant; 8. a rigid plastic sheet.
Detailed Description
For a better understanding of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings and the embodiments, however, the present invention is not limited thereto, and the protection scope of the present invention also relates to the equivalent technical means that can be conceived by those skilled in the art according to the inventive concept.
As shown in fig. 1 and 2, the tooth-grooved waterproof connecting structure for the vertical joint grouting method of the prefabricated wall panels of the prefabricated building comprises a plurality of prefabricated concrete prefabricated wall panels connected end to end in sequence, in this example, the connection relationship between adjacent prefabricated concrete prefabricated wall panels is illustrated by using a prefabricated concrete prefabricated left wall panel 1 and a prefabricated concrete prefabricated right wall panel 2 as an example, a trapezoidal groove is prefabricated along the vertical direction of the wall panel at one end connecting side of the prefabricated concrete prefabricated left wall panel 1 (in this example, the trapezoidal groove is arranged in the middle of the connecting side of the prefabricated concrete prefabricated wall panels, the edge of the trapezoidal groove is at a distance from the outer wall surface and the inner wall surface of the prefabricated concrete prefabricated wall panel), a trapezoidal convex tooth corresponding to the trapezoidal groove is prefabricated vertically on the wall panel at one end connecting side of the prefabricated concrete prefabricated right wall panel 2, after the prefabricated concrete prefabricated left wall panel 1 and the prefabricated right wall panel 2 are connected, the gap between the opposite surfaces of the trapezoidal groove and the trapezoidal convex tooth forms a seam, the opening of the seam close to the outer wall surface and the inner wall surface 4 is sealed by waterproof sealing materials, and flexible waterproof mortar 5 is poured into the seam.
The seam includes middle part cavity and both sides seam opening, trapezoidal dogtooth projecting part length is less than trapezoidal recess recessed part 50mm-80mm, form the cavity 3 that fills flexible waterproof mortar 5, it is adjacent the trapezoidal recess of assembled precast concrete wallboard docks the back with trapezoidal dogtooth, the both sides seam opening width that adjacent assembled precast concrete wallboard is close to outer wall face and interior wall 4 is 20mm-30mm, seam opening one side that is close to outer wall face is sealed through polyurethane after 6 material caulks of polyethylene stick earlier, the seam opening that is close to interior wall 4 one side seals the seam through hard plastic piece 8 earlier, the fire-resistant waterproof sealant of high elasticity is sealed again, make the seam form both sides confined cavity 3 like this, when filling flexible waterproof mortar 5, from last to using cavity 3 as the pouring opening down, and (3) pouring flexible waterproof mortar 5 to enable the flexible waterproof mortar 5 to be filled in the whole vertical cavity 3, so that water flow is prevented from penetrating into the water seepage chamber through the capillary action.
As an implementation manner of this embodiment, the opposite surfaces of the trapezoidal groove and/or the trapezoidal convex tooth may be pre-adhered with a polyethylene rod 6 and a grouting thin tube, so as to facilitate efficient vertical hoisting of the assembled wallboard in place.
The joints are plugged by polyethylene plugging bars and are sealed by polyurethane sealant 7; meanwhile, after the adjacent external wall panels are installed in place, the self-adhesive waterproof adhesive tape is used for sealing the gap to prevent water from flowing into the assembled gap. And after the assembly, grouting the part of the cavity 3 through a grouting thin tube.
In this embodiment, the specific construction method is as follows:
after the prefabricated concrete wallboard produced in an assembly member factory is transported to the site, a polyethylene plugging bar and a thin pipe for grouting at a groove are adhered to the edge of the outer wall at the tooth space of the wallboard to be butted in advance, and then hoisting is carried out.
After hoisting, the outer wall surface joint opening at the joint of the prefabricated concrete wall panel is sealed by polyurethane, the joint opening of the inner wall surface 4 is covered and sewed by a hard plastic sheet 8, and after the hard plastic sheet 8 is fixed by cement nails for later use, the joint opening is sealed by high-elasticity fire-resistant waterproof sealant.
And then pouring flexible waterproof mortar 5 into a cavity formed at the joint of the assembled wallboard through the grouting thin tube, lifting the grouting thin tube at a constant speed while grouting so as to fully fill the flexible waterproof mortar 5 into the cavity, and carrying out proper maintenance after the cavity is fully filled.
After using this structure, utilize the humidity transducer who distributes in wallboard dorsal surface to measure humidity and carry out steady voltage pressurization pulse trickle experiment, adopt tooth's slot type to connect the perps slip casting structure humidity value after the trickle experiment and be far less than traditional flush joint butt joint connection structure humidity value. The detection on all aspects of water resistance shows that the anti-leakage safety coefficient constructed by adopting the method is very high.
In addition, it should be noted that the present invention is not limited to the above embodiments, as long as the specific size or shape of the component is not specified, the component can be any size or shape corresponding to the structure, and no matter there is any change in the material composition, all the structural designs provided by the present invention are a variation of the present invention, which should be considered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a vertical seam grouting method tooth slot type waterproof connection structure of prefabricated wallboard of assembly type structure which characterized in that: including the prefabricated wallboard of assembled concrete that a plurality of heads and tails connected gradually, the one end of the prefabricated wallboard of assembled concrete is connected the side and is had trapezoidal recess along the vertical prefabrication of wallboard, and the vertical prefabrication of side wallboard has the trapezoidal dogtooth that corresponds with trapezoidal recess, and is adjacent the prefabricated wallboard of assembled concrete connects the back, one section distance in interval forms the seam between trapezoidal recess and the trapezoidal dogtooth opposite face, the seam is close to the opening of outer wall face and interior wall and is sealed through waterproof sealing material, fill waterproof mortar in the seam.
2. The prefabricated wallboard vertical joint grouting tooth-groove type waterproof connection structure of an assembly type structure according to claim 1, characterized in that: the seam includes middle part cavity and both sides seam opening, trapezoidal convex tooth bulge length is less than trapezoidal recess recessed part 50mm-80mm forms fills waterproof mortar's the cavity, both sides seam opening width is 20mm-30 mm.
3. The prefabricated wallboard vertical joint grouting tooth-groove type waterproof connection structure of an assembly type structure according to claim 2, characterized in that: seam opening one side that is close to the outer wall face is sealed through polyurethane with the seam opening behind the polyethylene rod shutoff seam opening earlier, and the seam opening that is close to inner wall face one side seals the seam opening through hard plastic sheet earlier, and the sealed seam opening of reuse fire-resistant waterproof sealant.
4. The prefabricated wallboard vertical joint grouting tooth-groove type waterproof connection structure of an assembly type structure according to claim 3, characterized in that: the opposite surfaces of the trapezoidal grooves and/or the trapezoidal convex teeth are pre-pasted with the polyethylene bars and the thin pipes for grouting.
5. The prefabricated wallboard vertical joint grouting tooth-groove type waterproof connection structure of an assembly type structure according to claim 4, characterized in that: the waterproof mortar is flexible waterproof mortar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920068931.3U CN209837324U (en) | 2019-01-16 | 2019-01-16 | Tooth-groove type waterproof connecting structure for prefabricated wallboard of prefabricated building by vertical joint grouting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920068931.3U CN209837324U (en) | 2019-01-16 | 2019-01-16 | Tooth-groove type waterproof connecting structure for prefabricated wallboard of prefabricated building by vertical joint grouting method |
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| CN209837324U true CN209837324U (en) | 2019-12-24 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667352A (en) * | 2019-01-16 | 2019-04-23 | 中南大学 | Assembled architecture prefabricated panel vertical abutment joint grouting method Alveolus type waterproof connecting structure |
| CN111877573A (en) * | 2020-07-29 | 2020-11-03 | 广东珠江建筑工程设计有限公司 | Assembly type building sealing waterproof construction system |
| CN112878518A (en) * | 2021-01-18 | 2021-06-01 | 上海大学 | Assembled building structure heated board |
-
2019
- 2019-01-16 CN CN201920068931.3U patent/CN209837324U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667352A (en) * | 2019-01-16 | 2019-04-23 | 中南大学 | Assembled architecture prefabricated panel vertical abutment joint grouting method Alveolus type waterproof connecting structure |
| CN111877573A (en) * | 2020-07-29 | 2020-11-03 | 广东珠江建筑工程设计有限公司 | Assembly type building sealing waterproof construction system |
| CN112878518A (en) * | 2021-01-18 | 2021-06-01 | 上海大学 | Assembled building structure heated board |
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