Anti-crack and anti-seepage structure of outer wall

By setting a damping rod and a viscoelastic damping waterproof component between the first wall and the second wall of the prefabricated building, combined with the reinforcement of the fixing plate and steel bars, the problems of easy cracking and poor waterproofing are solved, and higher earthquake resistance and waterproofing are achieved.

CN222649081UActive Publication Date: 2025-03-21CSCEC STRAIT CONSTR & DEV +1
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Patent Information

Application Number
CN202421398481.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-18
Publication Date
2025-03-21
Estimated Expiration
2034-06-18

AI Technical Summary

Technical Problem

In prefabricated buildings, the connection between the first wall and the second wall is prone to cracking due to vibration, resulting in rainwater leakage. The prior art connecting plates and waterproof coils may fail under high vibrations.

Method used

A damping rod is provided between the first wall and the second wall, and a viscoelastic damping and waterproof component is combined to enhance earthquake resistance and waterproof effect. The stability and durability of the structure are enhanced by the reinforcement of the fixing plate and steel bars.

Benefits of technology

It effectively improves the seismic performance and waterproof effect of the wall, enhances the stability and durability of the structure, simplifies the construction process and ensures the aesthetics of the structure.

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Abstract

The utility model discloses an outer wall anti-crack and anti-seepage structure which comprises a first wall body and a second wall body, an anti-crack structure is arranged between the first wall body and the second wall body, and the anti-crack structure comprises a plurality of damping rods penetrating through the first wall body and the second wall body at the same time. The damping rods are arranged between the first wall body and the second wall body, the damping rods are matched with the viscoelastic damping waterproof assemblies, the anti-seismic performance and the waterproof effect of the wall body are effectively improved, meanwhile, through reinforcement of the fixing plates and the reinforcing steel bars, the wall body is not prone to falling off, and the wall body is not prone to falling off due to the fact that the damping rods are arranged between the first wall body and the second wall body. The stability and durability of the structure are enhanced; in addition, due to the design of the receding grooves, the space is reasonably utilized, the construction process is simplified, and construction simplicity and structural attractiveness are guaranteed.
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Description

Technical Field

[0001] The utility model relates to the technical field of assembled buildings, in particular to an external wall anti-cracking and anti-leakage structure. Background Art

[0002] At present, most buildings are constructed using the construction technology of concrete pouring. The formed buildings have good integrity and can improve the solidity of the buildings. However, when constructing large buildings, since it is impossible to construct them using a one-time pouring technology, a multi-stage pouring construction technology is usually used. Since the first wall poured first and the second wall poured later are often connected only by concrete pouring, the first wall and the second wall are prone to cracking due to vibration, resulting in rainwater easily passing through the connection between the first wall and the second wall and causing leakage when it rains.

[0003] The Chinese utility model patent with announcement number CN212506893U proposes "an anti-crack and anti-leakage structure for an exterior wall", which achieves anti-crack and anti-leakage of the exterior wall by fixing a connecting plate between the first wall and the second wall and setting a waterproof membrane on the outer surface of the first wall and the second wall. However, when the vibration force applied to the exterior wall exceeds the load of the connecting plate, the connecting plate may be deformed, thereby causing the anti-crack ability of the connecting plate to fail, and the waterproof membrane may also lose its waterproof performance due to being pulled. Utility Model Content

[0004] In order to solve the problems existing in the above-mentioned prior art, the utility model provides an exterior wall anti-cracking and anti-leakage structure, which effectively improves the seismic resistance and waterproof effect of the wall by arranging a damping rod between the first wall and the second wall in conjunction with a viscoelastic damping waterproof component. At the same time, the stability and durability of the structure are enhanced through the reinforcement of fixed plates and steel bars.

[0005] The technical solution of the utility model is as follows:

[0006] An anti-crack and anti-leakage structure for an exterior wall comprises a first wall and a second wall, wherein an anti-crack structure is arranged between the first wall and the second wall, wherein the anti-crack structure comprises a plurality of damping rods simultaneously penetrating the first wall and the second wall, and a viscoelastic damping waterproof component is paved on the surface of the joint between the first wall and the second wall.

[0007] Furthermore, both ends of the damping rod are connected with fixing plates via bolts, and the fixing plates at both sides are fixedly embedded in the first wall and the second wall respectively.

[0008] Furthermore, both sides of the connection between the first wall and the second wall are provided with clearance grooves, and the viscoelastic damping waterproof component is laid in the accommodating space formed by the clearance grooves on both sides.

[0009] Furthermore, a steel bar is fixedly connected to the fixing plate, the steel bar is perpendicular to the damping rod, both ends of the steel bar in the first wall pass through the first wall, and both ends of the steel bar in the second wall pass through the second wall.

[0010] Furthermore, the viscoelastic damping waterproof component includes a sub-plate fixedly connected to the inner side of the give way groove, a viscoelastic rubber sheet is bonded to the outer side of the sub-plate, and the outer sides of the viscoelastic rubber sheets connected to each other on both sides are bonded to the main board.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model provides a damping rod between the first wall and the second wall, which cooperates with the viscoelastic damping waterproof component to effectively improve the seismic resistance and waterproof effect of the wall. At the same time, the stability and durability of the structure are enhanced through the reinforcement of the fixed plate and the steel bar. In addition, the design of the give way groove reasonably utilizes the space, simplifies the construction process, and ensures the simplicity of construction and the beauty of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the wall of the utility model;

[0015] Figure 3 It is a schematic diagram of the connection structure between the anti-cracking mechanism and the viscoelastic damping waterproof component of the utility model.

[0016] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0017] 1. First wall; 2. Second wall; 3. Anti-crack structure; 31. Damping rod; 32. Bolt; 33. Fixing plate; 34. Rebar; 4. Viscoelastic damping waterproof component; 41. Main board; 42. Sub-board; 43. Viscoelastic rubber sheet; 5. Clearance groove. DETAILED DESCRIPTION

[0018] In order to make the contents of the present invention easier to understand, the technical solution of the present invention is further described below in conjunction with specific implementation methods and drawings, but the present invention is not limited thereto.

[0019] See also Figures 1 to 3The utility model provides a technical solution: an anti-crack and anti-leakage structure for an exterior wall, comprising a first wall 1 and a second wall 2, an anti-crack structure 3 is arranged between the first wall 1 and the second wall 2, the anti-crack structure 3 comprises a plurality of damping rods 31 which penetrate the first wall 1 and the second wall 2 at the same time, and a viscoelastic damping waterproof component 4 is laid on the surface of the joint between the first wall 1 and the second wall 2.

[0020] As a further preference of this embodiment, the damping rod 31 is made of a high-elasticity carbon fiber rod with a diameter of 3cm-4.2cm. Multiple damping rods 31 can absorb and disperse vibrations caused by external impacts or earthquakes, thereby reducing damage to the wall.

[0021] As a further preference of this embodiment, both ends of the damping rod 31 are connected to fixing plates 33 by bolts 32, and the fixing plates 33 on both sides are fixedly embedded in the first wall 1 and the second wall 2, respectively. The fixing plates 33 fix both ends of the damping rod 31 in the first wall 1 and the second wall 2, respectively, to prevent the damping rod 31 from loosening due to vibration and the like, thereby ensuring the stability of the structure.

[0022] As a further preferred embodiment of the present invention, clearance grooves 5 are respectively provided on both sides of the connection between the first wall 1 and the second wall 2 , and the viscoelastic damping waterproof component 4 is laid in the accommodating space formed by the clearance grooves 5 on both sides.

[0023] As a further preference of this embodiment, a steel bar 34 is fixedly connected to the fixed plate 33, the steel bar 34 is perpendicular to the damping rod 31, both ends of the steel bar 34 located in the first wall 1 pass through the first wall 1, and both ends of the steel bar 34 located in the second wall 2 pass through the second wall 2.

[0024] As a further preference of this embodiment, the viscoelastic damping waterproof component 4 includes a sub-plate 42 fixedly connected to the inner side of the makeshift groove 5, a viscoelastic rubber sheet 43 is bonded to the outer side of the sub-plate 42, and the outer sides of the viscoelastic rubber sheets 43 connected to each other on both sides are bonded to the main board 41. The viscoelastic damping waterproof component 4 is arranged as a whole in the accommodating space formed by the makeshift grooves 5 on both sides, so that the outer side surface of the viscoelastic damping waterproof component 4 is flush with the surfaces of the first wall 1 and the second wall 2, ensuring that the viscoelastic damping waterproof component 4 is not deformed by external force. At the same time, the viscoelastic damping waterproof component 4.

[0025] As a further preferred embodiment of this embodiment, the sub-plate 42 is fixedly connected by the steel bars 34, and the viscoelastic damping waterproof component 4 is fixed in the clearance groove 5, so as to ensure the waterproofness of the wall joint and prevent moisture penetration.

[0026] The working principle of this utility model:

[0027] When in use, firstly, a number of steel bars 34 are welded on the fixing plate 33, and a plurality of damping rods 31 are vertically connected by bolts 32, then the fixing plate 33 is installed in the casting mold of the first wall 1, and the two ends of each steel bar 34 are passed through the casting mold of the first wall 1, and at the same time, the end of the damping rod 31 away from the fixing plate 33 is passed through the casting mold of the first wall 1, and then concrete is poured into the casting mold of the first wall 1 to form the first wall 1; the end of the damping rod 31 that passes through is connected to another fixing plate 33 by bolts 32, and the remaining steel bars 34 are welded to the other fixing plate 33, and the two ends of the remaining steel bars 34 are also passed through the casting mold of the second wall 2, and then concrete is poured into the casting mold of the second wall 2 to form the second wall 2.

[0028] After the first wall 1 and the second wall 2 are cast and formed, the two outer side surfaces of the first wall 1 and the second wall 2 are trimmed to form a clearance groove 5, and the part of the steel bar 34 extending out of the surface of the first wall 1 or the second wall 2 is cut off, and then the two sets of sub-plates 42 and viscoelastic rubber sheets 43 are respectively installed on the outer sides of the first wall 1 and the second wall 2 near the joint, wherein the steel bars 34 on both sides pass through the sub-plates 42 on the same side respectively, and finally the main board 41 is bonded to the outside of the viscoelastic rubber sheet 43 to cover the joint formed by the first wall 1 and the second wall 2, so that the two sides of the main board 41 are fixedly connected to the first wall 1 and the second wall 2 respectively.

[0029] When the outer wall is subjected to a vibration impact, causing the first wall 1 and the second wall 2 to generate a force moving away from each other, the vibration can be directly absorbed by the damping rod 31 and the viscoelastic damping waterproof component 4, thereby effectively reducing the impact of the vibration. Moreover, when cracks accidentally appear in the first wall 1 and the second wall 2, the viscoelastic damping waterproof component 4 can still directly block the gap to achieve a waterproof effect.

[0030] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An external wall anti-crack and anti-leakage structure, comprising a first wall (1) and a second wall (2), characterized in that: An anti-crack structure (3) is provided between the first wall (1) and the second wall (2), the anti-crack structure (3) comprising a plurality of damping rods (31) which penetrate the first wall (1) and the second wall (2) at the same time, and a viscoelastic damping waterproof component (4) is laid on the surface of the joint between the first wall (1) and the second wall (2).

2. The anti-cracking and anti-leakage structure for an exterior wall according to claim 1, characterized in that: Both ends of the damping rod (31) are connected to fixing plates (33) via bolts (32), and the fixing plates (33) at both sides are fixedly embedded in the first wall (1) and the second wall (2), respectively.

3. The anti-cracking and anti-leakage structure for an exterior wall according to claim 1, characterized in that: The two sides of the connection between the first wall (1) and the second wall (2) are respectively provided with clearance grooves (5), and the viscoelastic damping waterproof component (4) is laid in the accommodation space formed by the clearance grooves (5) on both sides.

4. The anti-cracking and anti-leakage structure for an exterior wall according to claim 2, characterized in that: A steel bar (34) is fixedly connected to the fixing plate (33), the steel bar (34) being perpendicular to the damping rod (31), the two ends of the steel bar (34) located in the first wall (1) passing through the first wall (1), and the two ends of the steel bar (34) located in the second wall (2) passing through the second wall (2).

5. The anti-cracking and anti-leakage structure for an exterior wall according to claim 3, characterized in that: The viscoelastic damping waterproof component (4) comprises a sub-plate (42) fixedly connected to the inner side of the clearance groove (5), a viscoelastic rubber sheet (43) is bonded to the outer side of the sub-plate (42), and the outer sides of the viscoelastic rubber sheets (43) connected to each other on both sides are bonded to the main board (41).

Citation Information

Patent Citations

  • Anti-cracking and anti-seepage structure of outer wall

    CN212506893U