Anti-seepage and anti-leakage structure of shear wall

Abstract

The utility model discloses an anti-seepage and anti-leakage structure of a shear wall, waterproof fillers are filled in split bolt holes of the shear wall, the split bolt holes form a step shape, and a water stop plate is arranged in the step hole close to one side of an outer wall. Broaching is carried out on the outer wall, a foaming agent is squeezed into the middle of the split bolt hole through equipment such as a glue gun, waterproof mortar is smeared on the step face of the broached hole, the water stop plate is fixed to the waterproof mortar, the other side of the waterproof plate is filled with the waterproof mortar layer, and the broached part is completely blocked and flattened. The indoor part is filled with the waterproof mortar to complete plugging, and even if cracks are generated on the outer wall part, rainwater is not prone to seeping into a room through the water stop plate, the filling part of the expansion material layer and the waterproof mortar layer multi-layer anti-seepage structure on the inner side.

Description

Technical Field

[0001] The utility model relates to an anti-seepage and anti-leakage structure of a shear wall. Background Art

[0002] External wall leakage is a common problem in engineering construction. It is not only easy to occur, but also troublesome to repair in the later stage. There are many reasons for external wall leakage. For shear walls cast with reinforced concrete, various holes in the shear wall, such as the tension bolt holes after the tension bolts on the template are removed during concrete pouring, are easy to form leakage channels between the external wall and the interior if they are not blocked in time or not properly handled. Traditionally, the tension bolt holes are blocked with cement mortar. Generally speaking, the thickness of the external wall is large, and the inside of the tension bolt holes is difficult to fill densely with cement mortar. The shrinkage rate of the shear wall and the filled cement mortar is also different, and cracks are prone to occur, which affects the blocking effect. The Chinese patent with publication number CN 115853141A discloses a process for anti-leakage and plugging treatment of external wall tension bolt holes. The waterproof effect is improved by adding waterproof coating, but the anti-penetration structure of the external wall still has room for improvement. Utility Model Content

[0003] In view of the above shortcomings, the purpose of the utility model is to provide an anti-seepage and anti-leakage structure of a shear wall with better anti-leakage effect.

[0004] To this end, the utility model provides a seepage and leakage proof structure of a shear wall, in which waterproof fillers are filled in the tension bolt holes of the shear wall, the tension bolt holes are formed in a step shape, and a water stop plate is provided in the step hole close to the outer wall side.

[0005] Furthermore, the waterproof filler includes an outer waterproof mortar layer arranged on the side close to the outer wall, an expansion material layer arranged in the middle of the tension bolt hole, and an inner waterproof mortar layer close to the indoor side, and the water stop plate is arranged in the outer waterproof mortar layer or on the step surface between the expansion material layer and the outer waterproof mortar layer.

[0006] Furthermore, waterproof mortar is provided between the water stop plate and the step surface to fix the water stop plate and the step surface together.

[0007] Furthermore, the longitudinal section of the outer waterproof mortar layer is T-shaped, the outer waterproof mortar layer protrudes from the shear wall surface, and the two wings are fixed on the outer wall of the shear wall.

[0008] Furthermore, a waterproof coating is provided on the outer side of the waterproof mortar layer, and the waterproof coating covers the waterproof mortar layer and extends to the outer wall surface of the shear wall.

[0009] Furthermore, it also includes an elastic waterproof plug, a portion of which has an outer diameter slightly larger than the tension bolt hole and is pressed into the tension bolt hole.

[0010] Furthermore, the elastic waterproof plug is conical or has a T-shaped longitudinal section.

[0011] Furthermore, waterproof mortar is provided between the T-shaped tail of the elastic waterproof plug and the step surface, and the tail of the waterproof plug is connected to the water stop plate.

[0012] Furthermore, the tail of the waterproof plug is provided with a groove, and the water stop plate is provided with a convex portion, the outer diameter of the convex portion is slightly larger than the inner diameter of the groove, and the convex portion cooperates and squeezes the groove so that the groove wall is tightly matched with the inner wall of the tension bolt hole.

[0013] In other embodiments of the utility model, a step hole and a waterstop plate are also provided on one side of the inner wall, one of the waterstop plates is connected with bolts, and the other waterstop plate is connected with nuts through a bracket, and the bolts and nuts cooperate to fasten the waterstop plates on both sides to the waterproof mortar on the step surface, and squeeze the waterproof mortar between the step surface and the waterstop plate to make it dense.

[0014] The beneficial technical effects of the utility model are:

[0015] (1) The utility model expands the hole in the exterior wall, and the length of the expanded hole is generally 50mm. The middle part of the tension bolt hole that is difficult to fill with cement mortar is filled with expansion materials such as foaming agent. The foaming agent is squeezed into the middle part of the tension bolt hole using glue guns and other equipment. Waterproof mortar is applied on the step surface of the expanded hole, and the water stop plate is fixed on the waterproof mortar. The waterproof mortar layer is filled on the other side of the waterproof plate and the expanded hole part is completely blocked and smoothed. The indoor part is filled with waterproof mortar to complete the blocking. The water stop plate increases the resistance to rainwater leakage. Even if cracks occur in the exterior wall, rainwater is not easy to penetrate into the room through the water stop plate, the filling part of the expansion material layer, and the multi-layer anti-seepage structure of the waterproof mortar layer inside.

[0016] (2) In a specific embodiment of the utility model, a waterproof plug is also used. Before the waterproof plug is driven into the hole, the surface of the tension bolt hole is treated to remove the rough part. The waterproof plug can be made of rubber or other materials. At least part of its outer diameter is larger than the inner diameter of the tension bolt hole. When it is pressed or driven into the hole by external force, it is squeezed and deformed to form a seal, thereby blocking the channel for inward leakage. Combined with the water stop plate, it further forms a resistance to inward leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is embodiment 1 of the utility model;

[0018] Figure 2 This is embodiment 2 of the utility model;

[0019] Figure 3 This is Example 3 of the present utility model.

[0020] Explanation of the reference numerals: 1. tension bolt hole; 2. step hole; 3. water stop plate; 4. inner waterproof mortar layer; 5. expansion material layer; 6. outer waterproof mortar layer; 7. shear wall; 8. waterproof coating; 9. bolt; 10. nut; 11. bracket; 12. waterproof plug; 121. groove; 13. convex part. DETAILED DESCRIPTION

[0021] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0022] Reference Figures 1 to 3 As shown, the utility model is a seepage and leakage proof structure of a shear wall, in which a waterproof filler is filled in the tension bolt hole 1 of the shear wall 7, the tension bolt hole 1 is expanded to form a step shape, and a water stop plate 3 is provided in the step hole 2 close to the outer wall. Before the tension bolt hole 1 is sealed, the hole needs to be processed, including expanding the hole on one side of the outer wall, cleaning the PVC sleeve, cleaning the dust in the tension bolt hole 1, and injecting or spraying water to moisten the hole. After the treatment is completed, the anti-seepage and leakage proof structure is constructed, refer to Figure 1 As shown, in Example 1, an inner waterproof mortar layer 4 is first filled indoors, i.e., on one side of the inner wall for sealing, and the length is generally 50 mm. An expansion material is filled in the middle of the tension bolt hole 1 to form an expansion material layer 5 with a length of 50 mm. Generally, a foaming agent is used, and it is filled densely with a glue gun or other tools. Waterproof mortar is applied on the step surface formed after the hole is expanded, and the water stop plate 3 is pressed on the cement mortar. The waterproof mortar is filled on the step hole 2 outside the water stop plate 3 to form an outer waterproof mortar layer 6. The outer waterproof mortar layer 6 is at least flush with the outer wall surface of the shear wall 7, and the length of the outer waterproof mortar layer is also 50 mm. The waterstop plate 3 can be directly arranged on the surface-treated step surface. Due to the construction workers' construction level during the hole expansion process, it is difficult to ensure that the surface of the step surface is flat and smooth. In the above embodiment 1, cement waterproof mortar is used to fill the gap between the step surface and the waterstop plate 3. Of course, structural adhesives can also be used to connect the step surface and the waterstop plate 3 to prevent water seepage, especially using expansion adhesives or silicone sealants with a certain elasticity.

[0023] In the above embodiment 1, referring to Figure 1As shown, the longitudinal section of the outer waterproof mortar layer 6 is T-shaped, the outer waterproof mortar layer 6 protrudes from the outer wall surface of the shear wall 7, and the two wings of the outer waterproof mortar layer 6 are fixed on the outer wall of the shear wall 7. The part protruding from the outer wall of the shear wall 7 can be smoothed with mortar to form a base layer during the construction of the outer wall decoration surface, so the protruding part of the outer waterproof mortar layer will not affect the overall beauty of the outer wall. This embodiment is actually to prevent cracks from forming between the hole wall concrete of the tension bolt hole 1 of the shear wall and the waterproof mortar filled. The outer wall is generally susceptible to direct sunlight and has a large temperature difference between day and night. By expanding the filled outer waterproof mortar layer, cracks can be avoided directly between the two. Furthermore, one or more layers of waterproof coating 8 can be applied to the outside of the outer waterproof mortar layer 6. In addition to covering the outer waterproof mortar layer 6, the coating can also be further extended to a distance from the outer surface of the shear wall 7 to prevent rainwater from leaking inward from the junction between the outer wall of the shear wall 7 and the outer waterproof mortar layer.

[0024] Reference Figure 2 As shown, Example 2 of the utility model is basically the same as Example 1, except that a step hole 2 is also enlarged on one side of the inner wall and a water stop plate 3 is provided, which is similar to the water stop plate provided on the outside. In order to compact the filler between the water stop plate 3 and the step surface, and to ensure that the water stop plate 3 and the cement mortar on the step surface are tightly combined, and to avoid the phenomenon of loose filling affecting the waterproof performance, one of the water stop plates 3 is connected with a bolt 9, and the other water stop plate 3 is connected with a nut 10 through a bracket 11. The bolts 9 and nuts 10 cooperate to fasten the water stop plates 3 on both sides to the waterproof mortar on the step surface, and squeeze the waterproof mortar between the step surface and the water stop plate 3 to be dense. Cross-shaped or polygonal grooves can be provided on the outside of the water stop plates 3 on both sides for tightening with tools.

[0025] Reference Figure 3 As shown, Example 3 of the utility model is basically the same as Example 1, except that it also includes an elastic waterproof plug 12, the outer diameter of part of the waterproof plug 12 is slightly larger than the tension bolt hole 1 and is pressed into the tension bolt hole 1. In this embodiment, the waterproof plug 12 is made of elastic rubber material, and the overall shape is cylindrical, conical or frustum-shaped. At least the tail size (outer diameter) of the waterproof plug 12 is slightly larger than the inner diameter of the tension bolt hole 1 in the middle, and it is pressed into the tension bolt hole 1. When the tension bolt hole 1 is surface treated, the waterproof plug 12 forms a seal with the hole, thereby increasing the resistance to rainwater leakage. Figure 3As shown, the elastic waterproof plug 12 has a T-shaped longitudinal section. Before the waterproof plug 12 is pressed into the tension bolt hole 1, a layer of waterproof mortar is first applied on the step surface, and then the elastic waterproof plug 12 is pressed in. The longitudinal section is T-shaped, and the tail of the waterproof plug 12 is firmly bonded to the step surface through the waterproof mortar, and the tail of the waterproof plug 12 is connected to the water stop plate 3. Preferably, the tail of the waterproof plug 12 is provided with a groove 121, and the water stop plate 3 is provided with a convex portion 13, the outer diameter of the convex portion 13 is slightly larger than the inner diameter of the groove 121, and the convex portion 13 cooperates and squeezes with the groove 121 so that the wall of the groove 121 is tightly matched with the inner wall of the tension bolt hole 1, and the T-shaped tail and the water stop plate 3 can be firmly bonded by glue.

[0026] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A shear wall anti-seepage and anti-leakage structure, characterized in that: A waterproof filler is filled in the tension bolt holes of the shear wall, wherein the tension bolt holes are formed in a step shape, and a water stop plate is provided in the step hole close to the outer wall side; The waterproof filler includes an outer waterproof mortar layer arranged on the side close to the outer wall, an expansion material layer arranged in the middle of the tension bolt hole and an inner waterproof mortar layer close to the indoor side. The water stop plate is arranged in the outer waterproof mortar layer or on the step surface between the expansion material layer and the outer waterproof mortar layer.

2. The anti-seepage and anti-leakage structure of a shear wall according to claim 1, characterized in that: A waterproof mortar is provided between the water stop plate and the step surface to fix the water stop plate and the step surface together.

3. The anti-seepage and anti-leakage structure of a shear wall according to claim 1 or 2, characterized in that: The longitudinal section of the outer waterproof mortar layer is T-shaped, the outer waterproof mortar layer protrudes from the shear wall surface, and the two wings are fixed on the outer wall of the shear wall.

4. The anti-seepage and anti-leakage structure of a shear wall according to claim 3, characterized in that: A waterproof coating is provided on the outer side of the outer waterproof mortar layer, and the waterproof coating covers the waterproof mortar layer and extends to the outer wall surface of the shear wall.

5. The anti-seepage and anti-leakage structure of a shear wall according to claim 2, characterized in that: A step hole and a waterstop plate are also provided on one side of the inner wall. One of the waterstop plates is connected with bolts, and the other waterstop plate is connected with nuts through a bracket. The bolts and nuts cooperate to fasten the waterstop plates on both sides to the waterproof mortar on the step surface, and squeeze the waterproof mortar between the step surface and the waterstop plate to make it dense.

6. The anti-seepage and anti-leakage structure of a shear wall according to claim 1 or 2, characterized in that: It also includes an elastic waterproof plug, a portion of which has an outer diameter slightly larger than the tension bolt hole and is pressed into the tension bolt hole.

7. The anti-seepage and anti-leakage structure of a shear wall according to claim 6, characterized in that: The waterproof plug is conical or has a T-shaped longitudinal section.

8. The anti-seepage and anti-leakage structure of a shear wall according to claim 7, characterized in that: Waterproof mortar is arranged between the T-shaped tail of the waterproof plug and the step surface, and the tail of the waterproof plug is connected to the water stop plate.

9. The anti-seepage and anti-leakage structure of a shear wall according to claim 8, characterized in that: The tail of the waterproof plug is provided with a groove, and the water stop plate is provided with a convex portion, the outer diameter of the convex portion is slightly larger than the inner diameter of the groove, and the convex portion cooperates and squeezes with the groove so that the groove wall is tightly matched with the inner wall of the tension bolt hole.

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