Assembly type upper structure and lower structure grouting connection system

Abstract

The utility model discloses an assembly type upper structure and lower structure grouting connection system, which belongs to the technical field of assembly type component connection and comprises a lower structure, an upper structure, bin sealing materials and grouting materials. The upper structure is arranged on the lower structure, and a connecting seam is formed between the upper structure and the lower structure; grouting sleeves are arranged in the upper structure at intervals in the length direction; grout outlets corresponding to the grouting sleeves are formed in the side wall of the upper structure; the lower structure is provided with connecting steel bars corresponding to the grouting sleeves, and the connecting steel bars are inserted into the grouting sleeves; grouting pipes are arranged in the bin sealing material on one side at intervals, the inner ends of the grouting pipes stretch into the communicating cavity, the outer ends of the grouting pipes stretch out of the outer side of the bin sealing material and are connected with a grouting device, and a dense-mesh steel wire mesh is arranged on the inner side of the bin sealing material; the communicating cavity, the grouting sleeve and the grout outlet holes are filled with grouting materials. According to the utility model, the grouting sleeves are communicated through the communicating cavities, so that the effects of exhausting and pressure relief are achieved, and the problem of bin explosion caused by overlarge pressure is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of connecting prefabricated components, and particularly relates to a grouting connection system for a prefabricated upper structure and a lower structure. Background Technique

[0002] When grouting and connecting prefabricated structures, the construction of grouting in compartments is usually adopted. However, during the compartment division process, the quality requirements for compartment division are relatively high. When the construction is improper, slurry leakage or cross-compartment leakage is likely to occur, resulting in the backflow of the slurry in the already grouted compartment, causing the slurry in the communication cavity and the sleeve to be not full, seriously affecting the grouting quality. When encountering blockage and needing to change the grouting point, the already plugged grouting holes and slurry outlet holes need to be reopened. After the grout mixture flows out again, it is plugged, and the operation is complex, which is likely to cause the backflow of the slurry.

[0003] In addition, when sealing the compartment, PVC pipes are usually inserted into the gaps between the upper structure and the lower structure along the length direction of the upper structure on both sides, and then the gaps outside the PVC pipes are filled and compacted with sealing material. After the sealing material dries, the PVC pipes are pulled out for sealing the compartment. When pulling out the PVC pipes, it is inevitable to cause greater disturbance to the sealing material, affecting the sealing quality, and it is necessary to plug the perforations of the PVC pipes again, prolonging the construction period of sealing the compartment and reducing the construction efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide a grouting connection system for a prefabricated upper structure and a lower structure, so as to solve the problems of easy slurry leakage or cross-compartment leakage in grouting in compartments in the above background technique, which affects the construction quality, the need to open the already completed construction part when blocked, and the relatively large disturbance during sealing of the compartment, resulting in low construction efficiency.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A grouting connection system for a prefabricated upper structure and a lower structure, comprising a lower structure, an upper structure, a sealing material and a grouting material;

[0007] The upper structure is arranged on the lower structure, and a gap is arranged between the two to form a connection joint; grouting sleeves are arranged at intervals along the length direction of the upper structure, and the bottom of the grouting sleeve is flush with the bottom surface of the upper structure; slurry outlet holes are formed in the side wall of the upper structure corresponding to the grouting sleeves, and the slurry outlet holes are communicated with the grouting sleeves;

[0008] Connecting steel bars are arranged on the lower structure corresponding to the grouting sleeves, and the connecting steel bars are inserted into the grouting sleeves;

[0009] The plugging material is arranged in a circle along the edge of the connection seam to form a communication cavity. A grouting pipe is arranged at intervals on one side of the plugging material. The inner end of the grouting pipe extends into the communication cavity, and the outer end extends out of the outside of the plugging material and is connected to a grouting device. A dense mesh wire net is arranged inside the plugging material;

[0010] The grouting material is filled in the communication cavity, the grouting sleeve and the slurry outlet holes.

[0011] Furthermore, embedded parts are arranged corresponding to the dense mesh wire net at the bottom of the upper structure and the top of the lower structure, and the top and bottom ends of the dense mesh wire net are respectively connected to the embedded parts.

[0012] Furthermore, a temporary positioning member is arranged on the side of the upper structure; the end of the dense mesh wire net is connected to the temporary positioning member through a steel bar.

[0013] Furthermore, the grouting pipe is a PVC pipe or a corrugated pipe.

[0014] Furthermore, the grouting pipe and the grouting sleeve are arranged in a staggered manner.

[0015] Furthermore, two rows of slurry outlet holes are arranged up and down, and a plurality of slurry outlet holes are arranged at intervals in each row.

[0016] Furthermore, the upper structure is a wall.

[0017] The utility model has the following beneficial effects:

[0018] 1. For the grouting connection system between the prefabricated upper structure and the lower structure provided by the utility model, the communication cavity is adopted to connect each grouting sleeve, which plays a role in exhausting air and relieving pressure, and avoids the problem of bursting due to excessive pressure; the grouting pipes are arranged at both ends of the communication cavity area, effectively solving the problem of air entrapment in the dead corners at both ends, and further avoiding the slurry backflow caused by the inability to exhaust air.

[0019] 2. For the grouting connection system between the prefabricated upper structure and the lower structure provided by the utility model, the plugging material is restricted by arranging the dense mesh wire net, and there is no need to remove it after plugging, which is simple to operate, reduces the disturbance to the plugging material, and improves the plugging effect.

[0020] 3. For the grouting connection system between the prefabricated upper structure and the lower structure provided by the utility model, it effectively solves the grouting problem in the grouting area of the communication cavity where there is no sleeve or few sleeves in the wall, and at the same time, it can avoid the situation of unable to grout caused by the blockage of the grouting hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the connection system related to the utility model;

[0022] Figure 2 is a schematic diagram of the distribution of the slurry outlet holes related to the utility model.

[0023] In the figure: 1 - upper structure, 2 - sealant material, 3 - grouting material, 4 - grouting sleeve, 5 - grout outlet hole, 6 - connecting steel bar, 7 - grouting pipe, 8 - wire mesh with dense mesh. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] As Figure 1 , 2 shown, a grouting connection system for an assembled upper structure and a lower structure provided by the present invention includes a lower structure, an upper structure 1, a sealant material 2 and a grouting material 3; the upper structure 1 is arranged on the lower structure, and a gap is provided between the two to form a connection joint; grouting sleeves 4 are arranged at intervals along the length direction of the upper structure 1, and the bottom of the grouting sleeve 4 is flush with the bottom surface of the upper structure 1; grout outlet holes 5 are provided on the side wall of the upper structure 1 corresponding to the grouting sleeves 4, and the grout outlet holes 5 are communicated with the grouting sleeves 4; connecting steel bars 6 are arranged on the lower structure corresponding to the grouting sleeves 4, and the connecting steel bars 6 are inserted into the grouting sleeves 4; the sealant material 2 is arranged in a circle along the edge of the connection joint to form a communication cavity, a grouting pipe 7 is arranged at intervals on one side of the sealant material 2, the inner end of the grouting pipe 7 extends into the communication cavity, the outer end extends out of the outside of the sealant material 2 and is connected with a grouting device, and a wire mesh with dense mesh 8 is arranged inside the sealant material 2; the grouting material 3 is filled in the communication cavity, the grouting sleeves 4 and the grout outlet holes 5.

[0026] The upper structure 1 is a wall.

[0027] The diameter of the grouting sleeve 4 is larger than the diameter of the connecting steel bar 6 to provide a grouting space.

[0028] The grout outlet holes 5 are arranged in two rows up and down, and multiple are arranged at intervals in each row.

[0029] The grouting pipe 7 is a PVC pipe or a corrugated pipe. Preferably, its outer diameter is 15 - 20 mm and its length is 20 - 40 mm. The distance between the grouting pipes 7 at both ends and the end of the upper structure 1 is 50 - 100 mm. The grouting pipes 7 are arranged in a staggered manner with the grouting sleeves 4 and avoid the dense distribution area of the grouting sleeves 4. At least two grouting pipes 7 are correspondingly arranged for each upper structure 1. When the length of the upper structure 1 exceeds 1.5 m and ≤ 3 m, 3 grouting pipes 7 are embedded. The average distance between the grouting pipes 7 should not exceed 1.5 m. When the length of the upper structure 1 exceeds 3 m, the number of grouting pipes 7 can be appropriately increased according to the actual length, and at the same time, the average distance between the grouting pipes 7 should not exceed 1.5 m.

[0030] The grouting device grouts into the communication cavity through the grouting pipe 7. After the grouting material 3 fills the communication cavity, the grouting sleeve 4 and the grouting holes 5 in sequence and overflows from the grouting holes 5, the upper structure 1 and the lower structure can be connected by plugging the grouting holes 5 at this time.

[0031] The dense wire mesh 8 is fixedly arranged inside the seal material 2, and its position can be fixed in different ways.

[0032] As a preferred method, embedded parts are arranged corresponding to the dense wire mesh 8 at the bottom of the upper structure 1 and the top of the lower structure. The top and bottom ends of the dense wire mesh 8 are respectively connected to the embedded parts, so as to fix its position.

[0033] As another preferred method, temporary positioning parts are arranged on the side of the upper structure 1. The end of the dense wire mesh 8 is connected to the temporary positioning parts through steel bars, and the steel bars can be cut after the seal material 2 is formed. The temporary positioning parts can be columns or other structures.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A grouting connection system for an assembled superstructure and substructure, characterized in that: It includes a lower structure, an upper structure (1), a sealant (2), and a grouting material (3). The upper structure (1) is arranged on the lower structure, and a gap is provided between them to form a connecting joint; grouting sleeves (4) are arranged at intervals along the length direction inside the upper structure (1), and the bottom of the grouting sleeve (4) is flush with the bottom surface of the upper structure (1); slurry outlet holes (5) are opened on the side wall of the upper structure (1) corresponding to the grouting sleeves (4), and the slurry outlet holes (5) are communicated with the grouting sleeves (4). Connecting steel bars (6) are arranged on the lower structure corresponding to the grouting sleeves (4), and the connecting steel bars (6) are inserted into the grouting sleeves (4). The sealant (2) is arranged in a circle along the edge of the connecting joint to form a communicating cavity. A grouting pipe (7) is arranged at intervals on one side of the sealant (2). The inner end of the grouting pipe (7) extends into the communicating cavity, and the outer end extends out of the outside of the sealant (2) and is connected to a grouting device. A dense wire mesh (8) is arranged on the inner side of the sealant (2). The grouting material (3) is filled in the communicating cavity, the grouting sleeve (4), and the slurry outlet hole (5).

2. The grouting connection system for the prefabricated upper structure and lower structure according to claim 1, wherein: Embedded parts are arranged on the bottom of the upper structure (1) and the top of the lower structure corresponding to the dense wire mesh (8), and the top and bottom ends of the dense wire mesh (8) are respectively connected to the embedded parts.

3. The grouting connection system for the prefabricated upper structure and lower structure according to claim 1, characterized in that: A temporary positioning member is arranged on the side of the upper structure (1); the end of the dense wire mesh (8) is connected to the temporary positioning member through a steel bar.

4. A grouting connection system for an assembled upper structure and a lower structure according to claim 1, characterized in that: The grouting pipe (7) is a PVC pipe or a corrugated pipe.

5. A grouting connection system for an assembled upper structure and a lower structure according to claim 1, characterized in that: The grouting pipe (7) is arranged in a staggered manner with the grouting sleeve (4).

6. The grouting connection system for the prefabricated upper structure and lower structure according to claim 1, wherein: The slurry outlet holes (5) are arranged in two rows up and down, and multiple are arranged at intervals in each row.

7. A grouting connection system for an assembled upper structure and a lower structure according to claim 1, characterized in that: The upper structure (1) is a wall.

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