Connecting joint of prefabricated wall body and cast-in-place wall body
By using threaded sleeves and connecting screws between prefabricated walls and cast-in-place walls, the problem of prefabricated wall reinforcement joints interfering with cast-in-place wall reinforcement binding is solved, stable connection and smooth construction are achieved, and damage to the connecting components is reduced.
Patent Information
- Application Number
- CN202422556610.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-10-22
AI Technical Summary
In areas with limited space, when prefabricated walls are connected to cast-in-place walls, the steel bar joints of prefabricated walls are likely to interfere with the steel bar structural binding of cast-in-place walls, affecting the normal construction of cast-in-place walls.
The connection components of the threaded sleeve and the connecting screw are used. The connecting screw is screwed into the threaded sleeve after the cast-in-place wall steel structure is tied. After the cast-in-place wall is poured, it cooperates with the threaded sleeve to achieve connection to avoid the interfering of the steel bar binding.
The stable connection between cast-in-place walls and prefabricated walls is achieved, which reduces the interference between the connecting components on the cast-in-place wall steel bar structure, ensures smooth construction, and transmits external load to the prefabricated wall steel bar structure through the threaded sleeve, reducing deformation and damage of the connecting components.
Smart Images
Figure CN223240854U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of wall connection structures, and in particular to a connection node between a prefabricated wall and a cast-in-place wall. Background Art
[0002] In current building interior wall structures, non-load-bearing walls are typically prefabricated, while load-bearing walls such as shear walls are cast in situ. Compared to traditional wall structures, the use of cast-in-situ construction improves construction efficiency while ensuring the stability of the wall structure.
[0003] In order to better connect and form the cast-in-place wall and the prefabricated wall, a steel bar joint is usually reserved on the side of the prefabricated wall for connecting to the steel bar structure of the cast-in-place wall. When the steel bar structure of the cast-in-place wall is subsequently tied, the steel bar structure of the cast-in-place wall is connected to the steel bar joint reserved for the prefabricated wall. After the subsequent cast-in-place wall is cast, the connection between the cast-in-place wall and the reserved wall is realized.
[0004] Regarding the above-mentioned related technologies, due to the limitations of construction conditions, when tying the steel structure of the cast-in-place wall in an area with limited space, the steel bar joints reserved in the prefabricated wall are likely to interfere with the tying of the steel structure of the cast-in-place wall, affecting the normal construction of the cast-in-place wall; therefore, there is room for improvement. Utility Model Content
[0005] In order to achieve the connection and forming of the cast-in-place wall and the prefabricated wall without affecting the steel bar binding of the cast-in-place wall, the present application provides a connection node between the prefabricated wall and the cast-in-place wall.
[0006] This application provides a connection node between a prefabricated wall and a cast-in-place wall, which adopts the following technical solution:
[0007] A connection node between a prefabricated wall and a cast-in-place wall comprises a prefabricated wall and a cast-in-place wall, wherein the prefabricated wall and the cast-in-place wall are connected via a connection assembly, wherein the connection assembly comprises a plurality of threaded sleeves and a plurality of connecting screws, wherein the plurality of threaded sleeves and the plurality of connecting screws are respectively embedded in a side close to the prefabricated wall and the cast-in-place wall, and the connecting screws are all threadedly connected in corresponding threaded sleeves.
[0008] By adopting the above technical solution, after the reinforcement structure of the cast-in-place wall is tied, the connecting screw is screwed into the corresponding threaded sleeve on the prefabricated wall. After the subsequent cast-in-place wall is cast, the cooperation between the connecting screw and the corresponding threaded sleeve is used to achieve a stable connection between the prefabricated wall and the cast-in-place wall. Compared with the traditional method of reserving steel bar joints on the prefabricated wall for subsequent connection of the reinforcement structure of the cast-in-place wall; the connection between the connecting screw and the threaded sleeve can be carried out after the reinforcement structure of the cast-in-place wall is tied, which effectively avoids interference with the binding construction of the reinforcement structure of the cast-in-place wall and is conducive to the smooth construction of the cast-in-place wall.
[0009] Preferably, the threaded sleeves are all connected to the steel structure in the prefabricated wall.
[0010] By adopting the above technical solution, on the one hand, the threaded sleeve can be limited and fixed, thereby reducing the displacement of the threaded sleeve during the support process of the prefabricated wall; on the other hand, the subsequent external load acting on the threaded sleeve can be promptly transmitted to the prefabricated wall reinforcement structure through the threaded sleeve, thereby reducing the external load from being concentrated on the threaded sleeve, resulting in deformation and damage to the threaded sleeve and the concrete structure around the threaded sleeve.
[0011] Preferably, the connecting screw is connected to the steel structure in the cast-in-place wall by binding with steel wire.
[0012] By adopting the above technical solution, after the connecting screw is threadedly connected to the corresponding threaded sleeve, the subsequent external load acting on the connecting screw can be transmitted to the steel structure of the cast-in-place wall through the connecting screw, thereby reducing the external load acting on the connecting screw for a long time, which may cause the connecting screw and the surrounding concrete structure to be easily deformed and damaged.
[0013] Preferably, both sides of the connection seam between the prefabricated wall and the cast-in-place wall are coated with a waterproof coating layer.
[0014] By adopting the above technical solution, the connection seam between the prefabricated wall and the cast-in-place wall is sealed with a waterproof protective coating to limit subsequent water from seeping through the connection seam between the prefabricated wall and the cast-in-place wall, causing the connection screws between the prefabricated wall and the cast-in-place wall to rust.
[0015] Preferably, mesh cloths are bonded to opposite sides of the connection seam between the prefabricated wall and the cast-in-place wall, and the waterproof coating layer covers the mesh cloths.
[0016] By adopting the above technical solution, the setting of the mesh cloth is conducive to improving the adhesion of the waterproof coating layer, so that the waterproof coating layer can be more firmly bonded to the connection between the prefabricated wall and the cast-in-place wall. At the same time, it is conducive to improving the overall strength of the waterproof coating layer and reducing the occurrence of cracking in the waterproof coating layer.
[0017] Preferably, an XPS board is provided on the side of the prefabricated wall facing the cast-in-situ wall.
[0018] By adopting the above technical solution, the rigid connection between the prefabricated wall and the cast-in-place wall is effectively reduced, the internal force of the subsequent cast-in-place wall is limited from acting on the prefabricated wall, and the situation in which the prefabricated wall is subjected to the internal force of the cast-in-place wall is reduced.
[0019] Preferably, a limiting protrusion is provided on a side of the XPS board facing the prefabricated wall, and a limiting groove is provided on the prefabricated wall corresponding to the limiting protrusion, and the limiting protrusion is embedded in the limiting groove.
[0020] By adopting the above technical solution, the XPS board is fixed by utilizing the cooperation between the limiting protrusion and the limiting groove to prevent the XPS board from separating from the prefabricated wall, thereby achieving a stable connection between the XPS board and the prefabricated wall panel.
[0021] Preferably, an annular water-stop wing plate is coaxially connected to the outer periphery of the open end of the threaded sleeve.
[0022] By adopting the above technical solution, a water-stop structure is formed at the open end of the threaded sleeve using an annular water-stop wing plate, which is beneficial to extending the path for external water to enter the interior of the prefabricated wall through the gap between the threaded sleeve and the prefabricated wall concrete structure, thereby reducing the corrosion of the steel structure inside the prefabricated wall.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. After the reinforcement structure of the cast-in-place wall is tied, the connecting screw is passed through the gap between the reinforcement structure of the cast-in-place wall and screwed into the corresponding threaded sleeve on the prefabricated wall. After the subsequent casting of the cast-in-place wall is completed, the connection between the cast-in-place wall and the prefabricated wall can be achieved through the cooperation between the connecting screw and the threaded sleeve. At the same time, the connecting screw can be installed after the reinforcement structure of the cast-in-place wall is tied, avoiding the impact of the connection component on the cast-in-place wall construction.
[0025] 2. By connecting the threaded sleeve to the internal steel structure of the prefabricated wall, the subsequent external load acting on the threaded sleeve can be transferred to the steel structure of the prefabricated wall, reducing the deformation and damage of the threaded sleeve. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is a schematic diagram of the connection structure between the cast-in-situ wall and the prefabricated wall in the first embodiment.
[0027] Figure 2 yes Figure 1 Enlarged schematic diagram of part A in the middle.
[0028] Figure 3 This is a schematic structural diagram of the threaded sleeve according to the second embodiment.
[0029] Description of reference numerals:
[0030] 1. Prefabricated wall; 11. Limiting groove; 2. Cast-in-place wall; 3. Threaded sleeve; 31. Annular water stop wing plate; 4. Connecting screw; 5. XPS board; 51. Limiting protrusion; 6. Waterproof coating layer; 61. Mesh cloth. DETAILED DESCRIPTION
[0031] The following is combined with Figure 1-3 This application is described in further detail.
[0032] An embodiment of the present application discloses a connection node between a prefabricated wall and a cast-in-place wall.
[0033] Example 1
[0034] A connection node between prefabricated wall and cast-in-place wall, referring to Figure 1 and Figure 2 , including a prefabricated wall 1 and a cast-in-place wall 2, the prefabricated wall 1 and the cast-in-place wall 2 are connected by a connecting component, the connecting component includes a plurality of connecting screws 4 and a plurality of threaded sleeves 3, the plurality of connecting screws 4 and the plurality of threaded sleeves 3 correspond one to one, the connecting screws 4 and the threaded sleeves 3 are respectively buried in the side close to the cast-in-place wall 2 and the threaded sleeves 3, and the connecting screws 4 are all threadedly connected to the corresponding threaded sleeves 3.
[0035] When using the connecting component to connect the prefabricated wall 1 and the cast-in-place wall 2, after the steel bar structure of the cast-in-place wall 2 is tied, the connecting screw 4 can be screwed into the threaded sleeve 3 corresponding to the prefabricated wall 1 through the gap of the steel bar structure of the cast-in-place wall 2. After the subsequent casting of the cast-in-place wall 2 is completed, the connection between the prefabricated wall 1 and the cast-in-place wall 2 is achieved by utilizing the cooperation between the connecting screw 4 and the threaded sleeve 3. At the same time, the connecting screw 4 can be connected to the threaded sleeve 3 after the steel bar structure of the cast-in-place wall 2 is tied, which reduces the impact of the connecting component on the steel bar structure tying of the cast-in-place wall 2 during installation, which is conducive to maintaining the normal construction of the cast-in-place wall 2.
[0036] Reference Figure 1 and Figure 2 The tail ends of the threaded sleeves 3 are fixed to the steel structure inside the prefabricated wall 1 by steel wire tying, so that the external load acting on the threaded sleeves 3 can be transferred to the steel structure of the prefabricated wall 1 in time, reducing the external load concentrated on the threaded sleeves 3, which causes the threaded sleeves 3 and the concrete structure around them to be easily deformed and damaged.
[0037] Reference Figure 1 and Figure 2The prefabricated wall 1, facing the cast-in-place wall 2, is fully paved with XPS boards 5, which are glued to the prefabricated wall 1. A stopper protrusion 51 is provided on the side of the XPS board 5 facing the prefabricated wall 1. A stopper groove 11 is formed inwardly on the prefabricated wall 1, corresponding to the stopper protrusion 51. The stopper protrusion 51 is embedded in the stopper groove 11. The XPS board 5 and the stopper protrusion 51 are integrally formed. Both the XPS board 5 and the stopper protrusion 51 have perforations corresponding to the threaded sleeves 3. These perforations are connected to the corresponding threaded sleeves and are used to pass through the connecting screws 4.
[0038] Reference Figure 1 and Figure 2 , the connecting screw 4 is tied to the steel structure of the cast-in-place wall 2 with steel wire; in the actual construction process, after the connecting screw 4 is screwed into the corresponding threaded sleeve 3 on the prefabricated wall 1, the connecting screw 4 is tied and fixed to the steel structure of the cast-in-place wall 2 with steel wire or cable tie. After the subsequent cast-in-place wall 2 is cast, the external load acting on the connecting screw 4 can be transferred to the steel structure of the cast-in-place wall 2 in time, which is beneficial to reduce the deformation of the connecting screw 4 and the cracking of the concrete structure around the connecting screw 4.
[0039] Reference Figure 1 and Figure 2 The XPS board 5 reduces the rigid contact between the prefabricated wall 1 and the cast-in-place wall 2, thereby limiting the internal forces of the subsequent building structure and the cast-in-place wall 2 from being transmitted to the prefabricated wall 1, reducing the risk of damage to the prefabricated wall 1 due to the internal forces from the cast-in-place wall 2. The limiting protrusions 51 on the XPS board 5 are embedded in the limiting grooves 11 of the prefabricated wall 1. The cooperation between the limiting protrusions 51 and the limiting grooves 11 allows the XPS board 5 to be more firmly connected to the prefabricated wall 1, thereby preventing the XPS from separating from the prefabricated wall 1.
[0040] Reference Figure 1 and Figure 2The two opposite sides of the joint between the prefabricated wall 1 and the cast-in-place wall 2 are covered with a mesh cloth 61, and the two opposite sides of the joint between the prefabricated wall 1 and the cast-in-place wall 2 are painted with a waterproof coating layer 6, which covers the mesh cloth 61. In this embodiment, the mesh cloth 61 is an alkali-resistant and crack-resistant mesh cloth, and the waterproof coating is a cement-based waterproof coating. The provision of the waterproof coating layer 6 can seal the joint between the prefabricated wall 1 and the cast-in-place wall 2, thereby limiting the subsequent infiltration of external water through the joint between the prefabricated wall 1 and the cast-in-place wall 2, which would cause the connecting screw 4 between the prefabricated wall 1 and the cast-in-place wall 2 to rust easily. The provision of the mesh cloth 61 is conducive to improving the adhesion of the waterproof coating layer 6, so that the waterproof coating of the waterproof coating layer 6 can be more firmly adhered to the joint between the prefabricated wall 1 and the cast-in-place wall 2, and at the same time is conducive to improving the overall strength of the waterproof coating layer 6 and reducing the occurrence of cracks in the waterproof coating layer.
[0041] The implementation principle of the first embodiment is:
[0042] S1: Construction of cast-in-place wall 2 reinforcement structure binding.
[0043] S2: Installation of the connecting screw 4: Move the connecting screw 4 through the gap on the steel structure of the cast-in-place wall 2 to face the corresponding threaded sleeve 3 on the prefabricated wall 1, and screw the connecting screw 4 into the corresponding threaded sleeve 3.
[0044] S3: Tie and fix the connecting screw rod 4: Tie and fix the connecting screw rod 4 to the steel structure of the cast-in-place wall 2 by steel wire.
[0045] S4: Supporting the formwork of the cast-in-place wall 2 and pouring concrete to form the cast-in-place wall 2;
[0046] S5: Remove the formwork of cast-in-place wall 2.
[0047] Example 2
[0048] Reference Figure 1 and Figure 3 The difference between the second embodiment and the first embodiment is that an annular water-stop wing plate 31 is coaxially welded to the outer periphery of the threaded sleeve 3 and is positioned near the open end of the threaded sleeve 3. The provision of the annular water-stop wing plate 31 forms a water-stop structure around the outer periphery of the open end of the threaded sleeve 3. The annular water-stop wing plate 31 extends the path for external water to enter the interior of the prefabricated wall 1, thereby reducing the corrosion of the steel bars in the prefabricated wall 1 caused by the infiltration of external water.
[0049] The implementation principle of the second embodiment is the same as that of the first embodiment, so it will not be described in detail.
[0050] After completing the binding structure of the steel bar structure of the cast-in-place wall 2, the present application screws the connecting screw 4 into the corresponding threaded sleeve 3 on the prefabricated wall 1 through the gap of the steel bar structure of the cast-in-place wall 2. After the subsequent cast-in-place wall 2 is cast and formed, the connection between the prefabricated wall 1 and the cast-in-place wall 2 is achieved by utilizing the cooperation between the connecting screw 4 and the threaded sleeve 3. At the same time, the connection operation between the connecting screw 4 and the threaded sleeve 3 can be performed after completing the binding of the steel bar structure of the cast-in-place wall 2, thereby avoiding interference with the binding of the steel bar structure of the cast-in-place wall 2 and facilitating the smooth construction of the cast-in-place wall 2.
[0051] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A connection node between a prefabricated wall and a cast-in-place wall, characterized by: The invention comprises a prefabricated wall (1) and a cast-in-place wall (2), wherein the prefabricated wall (1) and the cast-in-place wall (2) are connected via a connecting assembly, wherein the connecting assembly comprises a plurality of threaded sleeves (3) and a plurality of connecting screws (4), wherein the plurality of threaded sleeves (3) and the plurality of connecting screws (4) are respectively embedded in the adjacent sides of the prefabricated wall (1) and the cast-in-place wall (2), and the connecting screws (4) are all threadedly connected in the corresponding threaded sleeves (3).
2. A connection node between a prefabricated wall and a cast-in-place wall according to claim 1, characterized in that: The threaded sleeves (3) are all connected to the steel bar structure in the prefabricated wall (1).
3. The connection node between a prefabricated wall and a cast-in-place wall according to claim 2, characterized in that: The connecting screw rod (4) is connected to the steel bar structure in the cast-in-place wall (2) by binding with a steel wire.
4. The connection node between a prefabricated wall and a cast-in-place wall according to claim 1, characterized in that: Both sides of the connection seam between the prefabricated wall (1) and the cast-in-place wall (2) are coated with a waterproof coating layer (6).
5. The connection node between a prefabricated wall and a cast-in-place wall according to claim 4, characterized in that: Mesh cloth (61) is also bonded to opposite sides of the connection seam between the prefabricated wall (1) and the cast-in-place wall (2), and the waterproof coating layer (6) is arranged to cover the mesh cloth (61).
6. The connection node between a prefabricated wall and a cast-in-place wall according to claim 1, characterized in that: An XPS board (5) is provided on the side of the prefabricated wall (1) facing the cast-in-situ wall (2).
7. The connection node between a prefabricated wall and a cast-in-place wall according to claim 6, characterized in that: The XPS board (5) is provided with a limiting protrusion (51) on one side facing the prefabricated wall (1), and the prefabricated wall (1) is provided with a limiting groove (11) corresponding to the limiting protrusion (51), and the limiting protrusion (51) is embedded in the limiting groove (11).
8. The connection node between a prefabricated wall and a cast-in-place wall according to claim 1, characterized in that: An annular water-stop wing plate (31) is coaxially connected to the outer periphery of the open end of the threaded sleeve (3).