Anti-crack structure for connecting seam of frame beam and column and filler wall

Abstract

The utility model discloses an anti-crack structure for a connecting seam between a frame beam and a filler wall as well as between a frame column and the filler wall, which comprises a first base body and a second base body which are adjacent to each other and are formed after the filler wall is built, and is characterized by further comprising a waterproof coiled material which is a polypropylene coiled material, a cement paste layer is scraped on the surface of the adjacent joint of the first base body and the second base body, the polypropylene coiled material is flatly laid at the joint of the first base body and the second base body, the two sides of the inner surface of the polypropylene coiled material are correspondingly overlapped on the cement paste layer of the first base body and the cement paste layer of the second base body, and a cement paste layer is scraped on the edge of the outer surface of the polypropylene coiled material. The outer surface of the polypropylene coiled material is covered with a composite surface layer composed of anti-crack plastering mortar and an alkali-resistant glass fiber net, and the composite surface layer covers the first base body and the second base body on the outer side of the polypropylene coiled material at the same time. A rigid-flexible combination measure is adopted at the joint of the first base body and the second base body, the deformation resistance of the joint is high, and the anti-cracking effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of building engineering, and in particular relates to a crack-resistant structure of a connection joint between a frame beam, a column and a filling wall. Background Art

[0002] In the design of concrete frame structures such as buildings and sewage treatment plants, various lightweight wall materials are often used to fill the frame structure.

[0003] It is common for wall decoration surfaces to crack at the joints of frame beams, frame columns and filling wall materials, and there may even be water seepage in the walls. The main reason is that anti-cracking measures at the joints of frame beams, frame columns and filling wall materials are not properly handled. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a crack-resistant structure for connecting joints of frame beams, columns and filling walls, so as to solve the problem that the joints of the existing building exterior walls are prone to cracking.

[0005] In order to achieve the above technical effects, the technical solution adopted by the utility model is:

[0006] A crack-resistant structure for the connection seams of frame beams and columns and infill walls, comprising two mutually adjacent first and second substrates formed after the infill wall is built, and also comprising a waterproof membrane, wherein the waterproof membrane is a polypropylene membrane, and a cement slurry layer is applied to the surfaces of the adjacent joints of the first and second substrates, the polypropylene membrane is laid flat at the joint of the first and second substrates, and the two sides of the inner surface thereof are correspondingly overlapped on the cement slurry layers of the first and second substrates, a cement slurry layer is applied to the edge of the outer surface of the polypropylene membrane, one end of the cement slurry layer overlaps the cement slurry layer, and the other end overlaps the polypropylene membrane, the outer surface of the polypropylene membrane is covered with a composite surface layer composed of anti-cracking plaster mortar and alkali-resistant glass fiber mesh, and the composite surface layer simultaneously covers the first and second substrates outside the polypropylene membrane.

[0007] Furthermore, the composite surface layer is composed of an inner anti-crack plaster mortar layer, an outer anti-crack plaster mortar layer, and an alkali-resistant glass fiber mesh sandwiched between the inner anti-crack plaster mortar layer and the outer anti-crack plaster mortar layer. The inner anti-crack plaster mortar layer simultaneously covers the polypropylene coil, the cement slurry layer, and the first substrate and the second substrate surface on the outside of the polypropylene coil.

[0008] Furthermore, the width of the cement slurry layer on the first substrate side and the second substrate side is not less than 180 mm.

[0009] Furthermore, the thickness of the polypropylene coil is 0.8 mm.

[0010] Furthermore, the overlap widths of the polypropylene coil and the cement slurry layers on the first substrate side and the second substrate side are both 140-160 mm.

[0011] Furthermore, the thickness of the cement slurry layer is 1±0.5 mm, and the thickness of the cement slurry layer is 1-2 mm.

[0012] Furthermore, a slurry throwing layer is provided between the inner anti-cracking plaster mortar layer and the polypropylene coil, the cement slurry layer, and the first substrate and the second substrate outside the polypropylene coil.

[0013] Furthermore, the thickness of the internal anti-cracking plaster mortar layer is 4±0.5 mm.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model first applies cement slurry to the joint of the first substrate and the second substrate, and then lays the polypropylene coil on it, so that the two sides of the polypropylene coil are indented compared with the two sides of the cement slurry, and the two sides of the polypropylene coil are applied with cement slurry, and then the slurry is thrown and the outer layer structure is formed by anti-cracking plaster mortar and alkali-resistant glass fiber mesh, so that the deformation resistance of the joint of the first substrate and the second substrate is strengthened through the rigid-flexible combination measures, and the anti-cracking effect is greatly improved. The material is a conventional building material, which is easy to obtain, meets the national requirements of green, environmental protection, energy saving, and pollution-free, does not increase the cost, and the joint anti-cracking measures are simple to operate.

[0016] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the utility model is further described in detail in combination with the accompanying drawings and embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a side structural schematic diagram of the utility model;

[0018] Figure 2 It is a front structural schematic diagram of the utility model.

[0019] Figure 3 It is a schematic diagram of the front structure of the utility model without the slurry throwing layer and the composite surface layer.

[0020] The numbers and corresponding names in the figure are:

[0021] 1. First substrate, 2. Second substrate, 3. Cement slurry layer,

[0022] 4. Polypropylene coil, 5. Cement slurry layer, 6. Slurry throwing layer,

[0023] 7. Composite surface layer, 71. Internal anti-cracking plaster mortar layer,

[0024] 72. External anti-cracking plaster mortar layer, 73. Alkali-resistant glass fiber mesh. DETAILED DESCRIPTION

[0025] A crack-resistant structure for connecting joints between frame beams, columns and infill walls, such as Figure 1-3 As shown, the anti-cracking structure of the connection joint between the frame beam and column and the infill wall includes two mutually adjacent first substrates 1 and second substrates 2 formed after the infill wall is built, as well as waterproofing coiled materials and alkali-resistant glass fiber mesh, etc. Among them, the first substrate 1 is a frame beam, a frame column, etc., the second substrate 2 is a infill wall, and the waterproofing coiled material is a polypropylene coiled material 4. A cement slurry layer 3 with a thickness of about 1mmd is scraped on the surface of the adjacent joint of the first substrate 1 and the second substrate 2 (including the joint between the two), and the cement slurry layer 3 is symmetrical on both sides of the joint between the first substrate 1 and the second substrate 2, and the width of each side is not less than 180mm. The polypropylene coiled material 4 is laid flat at the joint of the first substrate 1 and the second substrate 2, and its inner surface is overlapped on the cement slurry layer 3 of the first substrate 1 and the second substrate 2 on both sides. The overlap width of the polypropylene coiled material 4 and the cement slurry layer 3 on the first substrate 1 side and the second substrate 2 side is 140-160mm. The outer edge of the polypropylene coil 4 is also scraped with a cement slurry layer 5 with a thickness of 1-2 mm, and one end of the cement slurry layer 5 overlaps the cement slurry layer 3, and the other end overlaps the polypropylene coil 4. The outer surface of the polypropylene coil 4 is covered with a composite surface layer 7 composed of anti-crack plaster mortar and alkali-resistant glass fiber mesh, and the composite surface layer 7 completely covers the first substrate 1 and the second substrate 2 on the outside of the polypropylene coil 4. The composite surface layer 7 is composed of an inner anti-crack plaster mortar layer 71, an outer anti-crack plaster mortar layer 72, and an alkali-resistant glass fiber mesh 73 sandwiched between the inner anti-crack plaster mortar layer 71 and the outer anti-crack plaster mortar layer 72. The inner anti-crack plaster mortar layer 71 covers the polypropylene coil 4, the cement slurry layer 5, and the surface of the first substrate 1 and the second substrate 2 on the outside of the polypropylene coil 4 at the same time, and the thickness of the inner anti-crack plaster mortar layer 71 is about 4 mm. A uniform slurry throwing layer 6 is also provided between the inner anti-cracking plaster mortar layer 71 and the polypropylene coil 4 , the cement slurry layer 5 , and the first substrate 1 and the second substrate 2 outside the polypropylene coil 4 .

[0026] When constructing the anti-cracking structure of the connecting joint of the utility model, first select a polypropylene coil with a thickness of 0.8mm and a specification of 1200mm*50m, and saw it into coils with a width of 300mm per roll, so as to ensure that the width of different substrates on both sides is close to 150mm. After the filling wall is built and waiting for 7 days, start preparing for the anti-cracking treatment of the joints of different substrates. Before paving the polypropylene coil, sprinkle water on the substrates on both sides of the joint to moisten them, and then apply a thin layer (1mm) of cement slurry, with a width of 200mm on each side. Then lay the polypropylene coil flat on the joint, with a width of 150mm on each side, and apply 1-2mm thick cement slurry on the edges of both sides of the polypropylene coil to ensure that the polypropylene is laid firmly. After the polypropylene coil is laid, it should be cured for at least 2 days. During this period, no collision should be carried out to prevent displacement or deformation; if the temperature is too high, it should be sprayed with water for curing. After the curing is completed, the wall surface is first subjected to slurry throwing treatment, and then the anti-cracking plaster mortar is prepared to fix the wall surface with mesh plastering (i.e., anti-cracking plaster mortar is applied to form a composite surface layer). The anti-cracking plaster mortar is applied in two layers, and the first layer (inner layer) is about 4mm thick. Before the initial setting, the alkali-resistant glass fiber mesh is laid on the surface of the first layer of plastering, and the second layer (outer layer) of anti-cracking plaster mortar is applied 24 hours later.

[0027] The materials used in implementing the anti-cracking structure of the connecting joints of the frame beams and columns and the filling walls of the utility model meet the national requirements of being green, environmentally friendly, energy-saving and pollution-free. The materials are conventional and easy to obtain without increasing costs. The anti-cracking measures for the joints are simple to operate, and a combination of rigid and flexible measures are adopted at the joints. The joints have strong deformation resistance and good anti-cracking effect.

[0028] The present invention is not limited to the above-mentioned specific implementation modes. For ordinary technicians in this field, various changes made based on the above-mentioned conception without creative work all fall within the protection scope of the present invention.

Claims

1. A crack-resistant structure for the connection joints between frame beams, columns and infill walls, comprising two mutually adjacent first and second bases formed after the infill walls are built, characterized in that: It also includes a waterproof membrane, which is a polypropylene membrane. The surfaces of the adjacent joints of the first substrate and the second substrate are scraped with a cement slurry layer. The polypropylene membrane is laid flat at the joint of the first substrate and the second substrate, and the two sides of its inner surface are correspondingly overlapped on the cement slurry layers of the first substrate and the second substrate. A cement slurry layer is scraped at the edge of the outer surface of the polypropylene membrane, one end of the cement slurry layer overlaps the cement slurry layer, and the other end overlaps the polypropylene membrane. The outer surface of the polypropylene membrane is covered with a composite surface layer composed of anti-cracking plaster mortar and alkali-resistant glass fiber mesh, and the composite surface layer simultaneously covers the first substrate and the second substrate outside the polypropylene membrane.

2. The anti-cracking structure of the connection joints between frame beams, columns and infill walls according to claim 1, characterized in that: The composite surface layer is composed of an inner anti-cracking plaster mortar layer, an outer anti-cracking plaster mortar layer, and an alkali-resistant glass fiber mesh sandwiched between the inner anti-cracking plaster mortar layer and the outer anti-cracking plaster mortar layer. The inner anti-cracking plaster mortar layer simultaneously covers the polypropylene coil, the cement slurry layer, and the first substrate and the second substrate surface outside the polypropylene coil.

3. The anti-cracking structure of the connection joints between frame beams, columns and infill walls according to claim 1, characterized in that: The width of the cement slurry layer on the first substrate side and the second substrate side is not less than 180 mm.

4. The anti-cracking structure of the connection joints between frame beams, columns and infill walls according to claim 1, characterized in that: The overlap widths of the polypropylene coiled material and the cement slurry layer on the first substrate side and the second substrate side are both 140-160 mm.

5. The anti-cracking structure of the connection joints between frame beams, columns and infill walls according to claim 1, characterized in that: The thickness of the polypropylene coil is 0.8 mm.

6. The anti-cracking structure of the connection joints between frame beams, columns and infill walls according to claim 1, characterized in that: The thickness of the cement slurry layer is 1±0.5mm, and the thickness of the cement slurry layer is 1-2mm.

7. The anti-cracking structure of the connection joints between frame beams, columns and infill walls according to claim 2, characterized in that: The inner anti-cracking plaster mortar layer is respectively provided with a slurry throwing layer between the polypropylene coiled material, the cement slurry layer, and the first substrate and the second substrate outside the polypropylene coiled material.

8. The anti-cracking structure of the connection joints between frame beams, columns and infill walls according to claim 2, characterized in that: The thickness of the internal anti-cracking plaster mortar layer is 4±0.5 mm.

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