A transverse connecting structure of cast-in-place shear wall and prefabricated shear wall
By designing components such as movable sleeves, fixed sleeves, and limiting blocks, the problems of inconvenient transportation of precast wall steel bars and connection errors were solved, achieving a stable connection between cast-in-place shear walls and precast shear walls, and improving the convenience of connection and seismic performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TANGYIN COUNTY RENHE MINSHU COMMERCIAL CONCRETE CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-24
AI Technical Summary
In the lateral connection between cast-in-place shear walls and precast shear walls, the reserved steel bars of the precast walls are inconvenient to transport and are easily bent, and errors are prone to occur during connection, affecting the connection effect.
The system employs components such as a movable sleeve, a fixed sleeve, a reinforcing bar, an insert plate, and connecting bolts. Through the sliding connection between the movable sleeve and the fixed sleeve and the cooperation of the limiting block, the extension and retraction of the reinforcing bar and the adjustment of its position are achieved, ensuring the stability of the connection.
This facilitates the convenient transportation and installation of pre-reserved reinforcing bars, reduces connection errors, and improves the stability and seismic performance of the connections.
Smart Images
Figure CN224549416U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transverse connection structure technology, specifically a transverse connection structure between cast-in-place shear walls and precast shear walls. Background Technology
[0002] The transverse connection structure between cast-in-place shear walls and precast shear walls typically achieves integrity through cast-in-place strips or post-cast sections. This involves pre-installing vertical reinforcement and keyways on the sides of the precast wall panels, which are then connected to the transverse reinforcement of the cast-in-place wall through lap splices, welding, or grouting sleeves during installation. A cast-in-place concrete zone is created at the junction, supplemented by horizontal distribution reinforcement or additional tie bars to ensure shear force transfer and seismic performance. The connection area requires enhanced reinforcement and ensures concrete density, forming a rigid joint to meet the structural requirements for coordinated load-bearing.
[0003] Currently, the lateral connection structure between cast-in-place shear walls and precast shear walls in existing technologies typically involves connecting the two sides of the cast-in-place shear wall and the precast shear wall. During use, the precast wall is transported to the cast-in-place wall for connection, but the precast wall's pre-reserved reinforcing bars are long, making handling inconvenient and prone to bending. Furthermore, during installation, because the precast wall is prefabricated while the connecting reinforcing bars are fixed inside, errors can easily occur between the precast wall's reinforcing bars and the connection structure of the cast-in-place wall, making connection difficult and prone to errors. Utility Model Content
[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a transverse connection structure between cast-in-place shear walls and precast shear walls, thus solving the problems mentioned in the background section.
[0005] (II) Technical Solution To achieve the above objectives, this utility model is implemented through the following technical solution: It includes a precast wall and a cast-in-place wall. The precast wall has a fixed frame inside, and a movable sleeve is slidably connected within a groove inside the fixed frame. A reinforcing bar is inserted into the movable sleeve. An insert plate is provided at the top of the movable sleeve, and both ends of the insert plate are inserted into the reinforcing bar. The insert plate is connected to the reinforcing bar and the movable sleeve by connecting bolts. The cast-in-place wall has a fixed sleeve inside, and a reinforcing bar is inserted into the fixed sleeve. A fixed block is fixedly connected to one side of the movable sleeve. A top plate is slidably connected to one side of the fixed frame. The toothed groove on the outer side of the top plate is connected to the fixed block. A limiting block on one side of the movable sleeve slides within a limiting groove.
[0006] Optionally, the two ends of the insert plate pass through the movable sleeve, the upper part of the movable sleeve is provided with a limiting block, and the insert plate is sleeved on the outer side of the limiting block.
[0007] Optionally, a movable groove is provided on one side of the movable sleeve, and the reinforcing bar moves inside the movable groove, so that the cast-in-place wall and the precast wall are fitted together.
[0008] Optionally, the upper and lower ends of the fixing frame are fixedly connected with a first reinforcing rod, which is inserted into the interior of the precast wall, and the upper and lower ends of the fixing sleeve are fixedly connected with a second reinforcing rod, which is inserted into the interior of the cast-in-place wall.
[0009] Optionally, a limiting groove is provided on one side of the fixed frame, the limiting groove closely fits the limiting block, and a plug rod is fixedly connected to one end of the fixed sleeve, the plug rod being inserted into the interior of the movable sleeve.
[0010] Optionally, a supporting spring is provided on the inner side of the top plate, a toothed groove is provided on the outer side of the top plate, and a toothed groove is provided on the inner side of the fixing block. The toothed groove of the fixing block is engaged with the toothed groove of the top plate.
[0011] This utility model provides a transverse connection structure between cast-in-place shear walls and precast shear walls, which has the following advantages: 1. The transverse connection structure between the cast-in-place shear wall and the precast shear wall, through the setting of movable sleeve, movable groove, steel bar rod, and fixed sleeve, has the effect of connecting the expansion and contraction of the steel bars. Through the cooperation of insert plate, connecting bolt and limiting block, the insert plate can be inserted into the interior of the movable sleeve and the steel bar rod during use, thereby fixing the steel bar rod and achieving the purpose of reserving the expansion and contraction of the steel bars.
[0012] 2. The transverse connection structure between the cast-in-place shear wall and the precast shear wall, through the setting of limiting grooves, limiting blocks, fixing frames and sliding grooves, has the effect of adjusting the position of the reinforcing bars. Through the cooperation of fixing blocks and top plates, the movable sleeve can be fixed during use, thereby fixing the position of the reinforcing bars and achieving the purpose of adjusting the position of the reinforcing bars. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the wall connection structure of this utility model; Figure 2 This utility model Figure 1 A magnified structural diagram of part A in the middle; Figure 3 This is a schematic diagram of the connection structure of this utility model; Figure 4 This is a structural schematic diagram of the cross-section of the movable sleeve of this utility model; Figure 5 This is a schematic diagram of the structure of the fixing sleeve of this utility model.
[0014] In the diagram: 1. Precast wall; 2. Cast-in-place wall; 3. Movable groove; 4. Movable sleeve; 5. Slide groove; 6. Fixed frame; 7. First reinforcing rod; 8. Second reinforcing rod; 9. Fixed sleeve; 10. Rebar rod; 11. Limiting groove; 12. Limiting block; 13. Insert rod; 14. Fixed block; 15. Connecting bolt; 16. Top plate; 17. Insert plate; 18. Limiting block. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0016] Example Please see Figures 1 to 5 This utility model provides a technical solution, including a precast wall 1 and a cast-in-place wall 2. The precast wall 1 is provided with a fixed frame 6 inside. A movable sleeve 4 is slidably connected in a groove 5 inside the fixed frame 6. A steel bar 10 is inserted into the movable sleeve 4. An insert plate 17 is provided on the upper part of the movable sleeve 4. Both ends of the insert plate 17 are inserted into the interior of the steel bar 10. The insert plate 17 is connected to the steel bar 10 and the movable sleeve 4 by connecting bolts 15. The cast-in-place wall 2 is provided with a fixed sleeve 9 inside. A steel bar 10 is inserted into the interior of the fixed sleeve 9. A fixed block 14 is fixedly connected to one side of the movable sleeve 4. A top plate 16 is slidably connected to one side of the fixed frame 6. The toothed groove on the outer side of the top plate 16 is connected to the fixed block 14. A limiting block 12 on one side of the movable sleeve 4 slides in a limiting groove 11.
[0017] Please refer to Figure 1 to Figure 4 The two ends of the insert plate 17 pass through the movable sleeve 4. A limiting block 18 is provided on the upper part of the movable sleeve 4, and the insert plate 17 is sleeved on the outer side of the limiting block 18.
[0018] Specifically, the groove of the limiting block 18 fits closely with the groove of the insert plate 17, and the middle part of the insert plate 17 is embedded in the upper part of the movable sleeve 4.
[0019] Please refer to Figure 1. A movable groove 3 is provided on one side of the movable sleeve 4. The reinforcing bar 10 moves inside the movable groove 3, and the cast-in-place wall 2 is attached to the precast wall 1.
[0020] Specifically, the reinforcing bar 10 moves up and down inside the movable groove 3, and the reinforcing bar 10 can also move laterally inside the movable groove 3.
[0021] Please see Figure 1 , Figure 3 The upper and lower ends of the fixed frame 6 are fixedly connected with the first reinforcing rod 7, which is inserted into the interior of the precast wall 1. The upper and lower ends of the fixed sleeve 9 are fixedly connected with the second reinforcing rod 8, which is inserted into the interior of the cast-in-place wall 2.
[0022] Specifically, the first reinforcing rod 7 and the second reinforcing rod 8 are arranged in a linear array, and the first reinforcing rod 7 and the second reinforcing rod 8 are reinforcing steel bars.
[0023] Please refer to Figure 1. Figure 3 A limiting groove 11 is provided on one side of the fixed frame 6. The limiting groove 11 fits closely with the limiting block 12. One end of the fixed sleeve 9 is fixedly connected to the insertion rod 13, which is inserted into the interior of the movable sleeve 4.
[0024] Specifically, the limiting block 12 moves up and down within the limiting groove 11.
[0025] Please refer to Figure 3. A supporting spring is provided on the inner side of the top plate 16, and a toothed groove is provided on the outer side of the top plate 16. A toothed groove is provided on the inner side of the fixing block 14, and the toothed groove of the fixing block 14 is engaged with the toothed groove of the top plate 16.
[0026] During use, when transporting the precast wall 1, the reinforcing bar 10 retracts into the movable sleeve 4, and the fixed sleeve 9 is positioned before pouring. After pouring, after transporting the precast wall 1, the reinforcing bar 10 is pulled outward, moving the reinforcing bar 10 inside the movable sleeve 4 outward. The movable groove 3 stores the reinforcing bar 10 when it retracts. Through the arrangement of the movable sleeve 4, movable groove 3, reinforcing bar 10, and fixed sleeve 9, the effect of connecting the expansion and contraction of the reinforcing bar is achieved. After moving out, the insert plate 17 is inserted into the movable sleeve 4 and the reinforcing bar 10, and then the insert plate 17 is fixed to the movable sleeve 4 by the connecting bolt 15. The upper limiting block 18 of the movable sleeve 4 is inserted into the insert plate 17 to fix and limit the insertion plate 17. Through the cooperation of the insert plate 17, connecting bolt 15, and limiting block 18, the insert plate 17 can be inserted into the movable sleeve 4 and the reinforcing bar 10 during use, thereby fixing the reinforcing bar 10 and achieving the purpose of reserving for the expansion and contraction of the reinforcing bar.
[0027] After the rebar 10 is moved out of the fixed position, it is inserted into the fixed sleeve 9. When the rebar 10 is inserted into the fixed sleeve 9, the fixed sleeve 9 is pre-installed in a position that may cause the rebar 10 and the fixed sleeve 9 to shift and become unable to connect. The movable sleeve 4 is moved in the sliding groove 5 to make the rebar 10 correspond to the fixed sleeve 9, while the limiting block 12 moves in the limiting groove 11 to limit the fixed sleeve 9. Through the setting of the limiting groove 11, the limiting block 12, the fixed frame 6 and the sliding groove 5, the rebar 10 can be adjusted in position. After the adjustment is completed, the top plate 16 moves outward through the supporting spring. The outer tooth groove of the top plate 16 connects with the tooth groove of the fixed block 14, thereby fixing the movable sleeve 4. Through the cooperation of the fixed block 14 and the top plate 16, the movable sleeve 4 can be fixed during use, thereby fixing the position of the rebar 10 and achieving the purpose of adjusting the position of the rebar.
[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A transverse connection structure between a cast-in-place shear wall and a precast shear wall, comprising a precast wall (1) and a cast-in-place wall (2), characterized in that: The precast wall (1) is provided with a fixed frame (6) inside. A movable sleeve (4) is slidably connected in the groove (5) inside the fixed frame (6). A steel bar (10) is inserted into the movable sleeve (4). An insert plate (17) is provided on the upper part of the movable sleeve (4). The two ends of the insert plate (17) are inserted into the interior of the steel bar (10). The insert plate (17) is connected to the steel bar (10) and the movable sleeve (4) by connecting bolts (15). The cast-in-place wall (2) is provided with a fixed sleeve (9) inside. A steel bar (10) is inserted into the interior of the fixed sleeve (9). A fixed block (14) is fixedly connected to one side of the movable sleeve (4). A top plate (16) is slidably connected to one side of the fixed frame (6). The toothed groove on the outside of the top plate (16) is connected to the fixed block (14). A limiting block (12) on one side of the movable sleeve (4) slides in the limiting groove (11).
2. The transverse connection structure between a cast-in-place shear wall and a precast shear wall according to claim 1, characterized in that: The two ends of the insert plate (17) pass through the movable sleeve (4), and a limiting block (18) is provided on the upper part of the movable sleeve (4). The insert plate (17) is sleeved on the outer side of the limiting block (18).
3. The transverse connection structure between a cast-in-place shear wall and a precast shear wall according to claim 1, characterized in that: The movable sleeve (4) has a movable groove (3) on one side, and the steel bar (10) moves inside the movable groove (3), so that the cast-in-place wall (2) and the precast wall (1) are attached.
4. The transverse connection structure between a cast-in-place shear wall and a precast shear wall according to claim 1, characterized in that: The upper and lower ends of the fixed frame (6) are fixedly connected to a first reinforcing rod (7), which is inserted into the interior of the precast wall (1). The upper and lower ends of the fixed sleeve (9) are fixedly connected to a second reinforcing rod (8), which is inserted into the interior of the cast-in-place wall (2).
5. The transverse connection structure between a cast-in-place shear wall and a precast shear wall according to claim 1, characterized in that: A limiting groove (11) is provided on one side of the fixed frame (6), the limiting groove (11) closely fits the limiting block (12), and a plug rod (13) is fixedly connected to one end of the fixed sleeve (9), the plug rod (13) is inserted into the interior of the movable sleeve (4).
6. The transverse connection structure between a cast-in-place shear wall and a precast shear wall according to claim 1, characterized in that: The top plate (16) is provided with a supporting spring on the inner side, and the top plate (16) is provided with a toothed groove on the outer side. The fixing block (14) is provided with a toothed groove on the inner side, and the toothed groove of the fixing block (14) is combined with the toothed groove of the top plate (16).