Connecting seam structure of prefabricated wallboard and cast-in-place wallboard

By designing a joint structure between prefabricated wall panels and cast-in-place wall panels, stable connection is achieved using the combination of fixed seats, connecting seats, support rods, support blocks and springs, and the anti-seepage performance is enhanced through melamine resin-coated composite boards, solving the problems of long connection period and joint water seepage, ensuring construction efficiency and waterproof performance of the building.

CN222557849UActive Publication Date: 2025-03-04ZHUHAI HUAFA ARCHITECTURAL DESIGN CONSULTING CO LTD
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Patent Information

Application Number
CN202421097831.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-20
Publication Date
2025-03-04
Estimated Expiration
2034-05-20

AI Technical Summary

Technical Problem

The connection period of existing prefabricated wall panels and cast-in-place wall panels is long, and the connection joints are prone to seepage, resulting in moldy interior decoration, water rebate from joints, and exposed windows.

Method used

A prefabricated wall panel and cast-in-place wall panel connection joint structure is designed. Through the combination of fixed seats, connecting seats, support rods, support blocks and springs, a stable connection between cast-in-place concrete walls and shear walls is achieved. In the protective structure, a melamine resin-coated composite board is used as a barrier plate to enhance anti-seepage performance.

Benefits of technology

The construction period of the building is shortened, the interior decoration problems caused by water seepage between the connecting joints is avoided, and the stability and waterproof performance of the building are ensured.

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Abstract

The utility model relates to the technical field of building construction, in particular to a prefabricated wallboard and cast-in-place wallboard connecting seam structure which comprises a cast-in-place constructional concrete wall and a shear wall, and the right end of the cast-in-place constructional concrete wall is attached to the shear wall. The fixing base and the shear wall are fixed through the nut, then the connecting base is connected with the cast-in-place structural concrete wall, and when the supporting block makes contact with the contact face of the cast-in-place structural concrete wall, the supporting block is extruded by the cast-in-place structural concrete wall so that the supporting block can move inwards, the supporting block drives the supporting rod to move inwards, and the supporting rod drives the spring to be compressed; when the supporting blocks move to the positions corresponding to the grooves of the cast-in-place structural concrete wall, the elastic force of the springs drives the supporting blocks to be connected with the grooves of the cast-in-place structural concrete wall in a clamped mode, and therefore the cast-in-place structural concrete wall and the shear wall are connected, an original connecting mode is replaced with the mode, and the construction period of a building is shortened.
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Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a connection seam structure of a prefabricated wall panel and a cast-in-place wall panel. Background Art

[0002] Prefabricated steel structure buildings are a new type of building system. Compared with traditional concrete buildings, they use steel plates or steel sections instead of reinforced concrete, which has higher strength and better earthquake resistance. In addition, since the components can be factory-made and installed on-site, the construction efficiency is greatly improved. In recent years, prefabricated steel structure buildings have developed rapidly and are widely used in industrial and civil buildings.

[0003] However, in the process of connecting the existing prefabricated wall panels and the cast-in-place wall panels, it is necessary to connect the shear wall and the concrete outer wall through steel bars and concrete. In this process, the steel bars need to be erected and the concrete needs to be connected by pouring, etc. This kind of construction requires waiting for the concrete to air-dry before the next step of construction can be carried out, which leads to a long connection period between the prefabricated wall panels and the cast-in-place wall panels. During the construction of prefabricated wall panels and cast-in-place wall panels, problems such as unstable connection between the structural outer wall and the cast-in-place concrete structure and water seepage in the connection joints are often encountered, which eventually leads to mold in the interior decoration, water backflow in the joints, dew on the windows, etc. Utility Model Content

[0004] The utility model aims to solve the problem of long construction period for connecting prefabricated wall panels with cast-in-place wall panels and the problem of water seepage in the connecting seams between the prefabricated wall panels and the cast-in-place wall panels, which leads to mold in indoor decoration, water return in the seams and exposure on windows, and proposes a connecting seam structure between the prefabricated wall panels and the cast-in-place wall panels.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A connection seam structure of prefabricated wall panels and cast-in-place wall panels is designed, including a cast-in-place structural concrete wall and a shear wall. The right end of the cast-in-place structural concrete wall is in contact with the shear wall, and a connection structure is arranged on the left side of the shear wall. The connection structure includes a fixed seat, the right end of the fixed seat is tightly pressed against the shear wall, the left end of the fixed seat is fixedly connected to the connection seat, both sides of the connection seat are slidably connected to a plurality of support rods, the top end of the support rod is fixedly connected to a support block, the inner end of the support block is fixedly connected to one end of a spring, and the other end of the spring is fixedly connected to the connection seat.

[0007] Preferably, the outer wall of the connecting seat is in contact with the cast-in-place concrete wall, and the outer side of the outer wall of the supporting block is in contact with the cast-in-place concrete wall.

[0008] Preferably, two sides of the fixing seat are sleeved with a plurality of anchor rods, and the left side of the anchor rods is connected with a nut thread.

[0009] Preferably, the inner wall of the shear wall is provided with a plurality of anchor rods, and the middle parts of both sides of the cast-in-place structural concrete wall and the shear wall are fixedly connected to the supporting layers on both sides respectively.

[0010] Preferably, a protective structure is provided on the outside of the cast-in-place concrete wall and the shear wall, and the protective structure includes an isolation plate, the two ends of the isolation plate are respectively fixedly connected to the cast-in-place concrete wall and the shear wall, the outer end of the isolation plate is fixedly connected to the reinforcement layer, and the outer end of the reinforcement layer is bonded to the anti-permeability component.

[0011] Preferably, both ends of the anti-permeability component are bonded to the cast-in-place structural concrete wall and the shear wall respectively.

[0012] The utility model provides a connection seam structure of a prefabricated wall panel and a cast-in-place wall panel, and has the beneficial effects of: fixing a fixing seat and a shear wall by a nut, and then connecting the connecting seat and the cast-in-place structural concrete wall, when the supporting block contacts the contact surface of the cast-in-place structural concrete wall, the supporting block is squeezed by the cast-in-place structural concrete wall so that the supporting block moves inward, and the supporting block drives the supporting rod to move inward, and the supporting rod drives the spring to compress, and when the supporting block moves to a position corresponding to the groove of the cast-in-place structural concrete wall, the elastic force of the spring drives the supporting block to engage with the groove of the cast-in-place structural concrete wall, thereby realizing the connection between the cast-in-place structural concrete wall and the shear wall, and by replacing the original connection method in this way, the construction period of the building is shortened;

[0013] The material of the isolation board is a composite board with a melamine resin coating, which has good isolation properties against water. The outer end of the reinforcement layer is bonded to the anti-penetration component. The reinforcement layer is made of alkali-resistant glass fiber mesh cloth, and the anti-penetration component is made of polymer anti-cracking mortar, which has excellent anti-penetration performance and avoids water seepage in the connection joints, which leads to mold in the interior decoration, water backflow in the joints, and exposure on the windows. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 3 for Figure 2 The structural diagram of A in the figure;

[0017] Figure 4 for Figure 2 Schematic diagram of the side structure.

[0018] In the figure: 1. cast-in-place structural concrete wall, 2. shear wall, 3. connection structure, 301. fixing seat, 302. connection seat, 303. support rod, 304. support block, 305. spring, 4. protection structure, 4a1. isolation plate, 4a2. anti-penetration component, 4a3. reinforcement layer, 4b1. connection strip, 5. anchor rod, 6. nut, 7. support layer. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings:

[0020] Embodiment 1:

[0021] Refer to the attached Figure 1-4 : In the present embodiment, a connection seam structure of a prefabricated wall panel and a cast-in-place wall panel comprises a cast-in-place structural concrete wall 1 and a shear wall 2, wherein the right end of the cast-in-place structural concrete wall 1 is fitted with the shear wall 2, and a connection structure 3 is arranged on the left side of the shear wall 2, wherein the connection structure 3 comprises a fixing seat 301, during the pouring process of the shear wall 2, an anchor rod 5 is pre-buried inside the shear wall, and the fixing seat 301 is fixed to the shear wall by a nut 6, and then the connection seat 302 is connected to the cast-in-place structural concrete wall 1, when the support block 304 contacts the contact surface of the cast-in-place structural concrete wall 1, the support block 304 is squeezed by the cast-in-place structural concrete wall 1 so that the support block 304 moves inward, and the support block 304 drives the support rod 303 to move inward, and the support rod 303 drives the spring 305 to compress, and when the support block 304 moves to a position corresponding to the groove of the cast-in-place structural concrete wall 1, the elastic force of the spring 305 drives the support block 304 to contact the groove of the cast-in-place structural concrete wall 1 The grooves are snapped together, thereby realizing the connection between the cast-in-place structural concrete wall 1 and the shear wall 2, the right end of the fixing seat 301 is tightly pressed against the shear wall 2, the left end of the fixing seat 301 is fixedly connected to the connecting seat 302, the two sides of the connecting seat 302 are slidably connected with multiple support rods 303, the top of the support rod 303 is fixedly connected with the support block 304, the inner end of the support block 304 is fixedly connected with one end of the spring 305, and the other end of the spring 305 is fixedly connected with the connecting seat 302, the outer wall of the connecting seat 302 is in contact with the cast-in-place structural concrete wall 1, and the outer side of the outer wall of the support block 304 is in contact with the cast-in-place structural concrete wall 1, the two sides of the fixing seat 301 are sleeved with multiple anchor rods 5, the left side of the anchor rod 5 is threadedly connected with the nut 6, and the inner wall of the shear wall 2 is provided with multiple anchor rods 5, and the middle parts of the two sides of the cast-in-place structural concrete wall 1 and the shear wall 2 are respectively fixedly connected with the supporting layers 7 on both sides, and the material of the supporting layer is non-shrinkage dry powder sand slurry, which is used to fill the connecting seam.

[0022] A protective structure 4 is arranged on the outside of the cast-in-place concrete wall 1 and the shear wall 2, and the protective structure 4 includes an isolation plate 4a1, and the two ends of the isolation plate 4a1 are respectively fixedly connected to the cast-in-place concrete wall 1 and the shear wall 2, and the outer end of the isolation plate 4a1 is fixedly connected to the reinforcement layer 4a3. The material of the isolation plate 4a1 is a composite plate with a melamine resin coating, which has good isolation properties against water. The outer end of the reinforcement layer 4a3 is bonded to the anti-permeability component 4a2. The reinforcement layer is made of alkali-resistant glass fiber mesh cloth, and the anti-permeability component 4a2 is made of polymer anti-cracking mortar, which has excellent anti-permeability performance. The two ends of the anti-permeability component 4a2 are respectively bonded to the cast-in-place concrete wall 1 and the shear wall 2.

[0023] Working principle:

[0024] The fixing seat 301 is fixed to the shear wall by the nut 6, and then the connecting seat 302 is connected to the cast-in-place structural concrete wall 1. When the support block 304 contacts the contact surface of the cast-in-place structural concrete wall 1, the support block 304 is squeezed by the cast-in-place structural concrete wall 1 so that the support block 304 moves inward, and the support block 304 drives the support rod 303 to move inward, and the support rod 303 drives the spring 305 to compress. When the support block 304 moves to the position corresponding to the groove of the cast-in-place structural concrete wall 1, the elastic force of the spring 305 drives the support block 304 to engage with the groove of the cast-in-place structural concrete wall 1, thereby realizing the connection between the cast-in-place structural concrete wall 1 and the shear wall 2. This method replaces the original connection method and shortens the construction period of the building.

[0025] The material of the isolation board 4a1 is a composite board with a melamine resin coating, which has good isolation properties against water. The outer end of the reinforcement layer 4a3 is bonded to the anti-penetration component 4a2. The reinforcement layer is made of alkali-resistant glass fiber mesh cloth, and the anti-penetration component 4a2 is made of polymer anti-cracking mortar, which has excellent anti-penetration performance and avoids the occurrence of mold in indoor decoration, water backflow in joints, and dew on windows due to water seepage in the connection joints.

[0026] Embodiment 2:

[0027] See attached Figure 1-4 In the present embodiment, a connection seam structure of a prefabricated wall panel and a cast-in-place wall panel is provided, wherein the protective structure 4 may further include a connecting strip 4b1, the inner ends of the connecting strips 4b1 on both sides are fixedly connected to the isolation panel 4a1, and the outer ends of the connecting strips 4b1 are respectively pressed against the cast-in-place concrete wall 1 and the shear wall 2, thereby increasing the sealing performance between the isolation panel 4a1 and the cast-in-place concrete wall 1 and the shear wall 2 through the connecting strips 4b1.

[0028] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A joint structure of a prefabricated wall panel and a cast-in-place wall panel, comprising a cast-in-place structural concrete wall (1) and a shear wall (2), wherein the right end of the cast-in-place structural concrete wall (1) is in contact with the shear wall (2), and is characterized in that: A connection structure (3) is provided on the left side of the shear wall (2), and the connection structure (3) comprises a fixing seat (301), the right end of the fixing seat (301) is tightly abutted against the shear wall (2), the left end of the fixing seat (301) is fixedly connected to a connection seat (302), both sides of the connection seat (302) are slidably connected to a plurality of support rods (303), the top end of the support rod (303) is fixedly connected to a support block (304), the inner end of the support block (304) is fixedly connected to one end of a spring (305), and the other end of the spring (305) is fixedly connected to the connection seat (302).

2. The connection joint structure of a prefabricated wall panel and a cast-in-place wall panel according to claim 1 is characterized in that: The outer wall of the connection seat (302) fits in with the cast-in-place structural concrete wall (1), and the outer side of the outer wall of the support block (304) fits in with the cast-in-place structural concrete wall (1).

3. The connection joint structure of a prefabricated wall panel and a cast-in-place wall panel according to claim 1 is characterized in that: The two sides of the fixing seat (301) are sleeved with a plurality of anchor rods (5), and the left side of the anchor rod (5) is threadedly connected with a nut (6).

4. The connection joint structure of a prefabricated wall panel and a cast-in-place wall panel according to claim 1, characterized in that: The inner wall of the shear wall (2) is provided with a plurality of anchor rods (5), and the middle parts of both sides of the cast-in-place structural concrete wall (1) and the shear wall (2) are respectively fixedly connected to the supporting layers (7) on both sides.

5. The connection joint structure of a prefabricated wall panel and a cast-in-place wall panel according to claim 1, characterized in that: A protective structure (4) is arranged on the outside of the cast-in-place structural concrete wall (1) and the shear wall (2), and the protective structure (4) comprises an isolation plate (4a1), the two ends of the isolation plate (4a1) are respectively fixedly connected to the cast-in-place structural concrete wall (1) and the shear wall (2), the outer end of the isolation plate (4a1) is fixedly connected to the reinforcement layer (4a3), and the outer end of the reinforcement layer (4a3) is bonded to the anti-permeability component (4a2).

6. The connection joint structure of a prefabricated wall panel and a cast-in-place wall panel according to claim 5, characterized in that: The two ends of the anti-seepage component (4a2) are respectively bonded to the cast-in-place structural concrete wall (1) and the shear wall (2).