Fabricated precast concrete shear wall connecting structure
By designing limiting columns and template components, and combining them with threaded sleeve connections, the safety hazards and insufficient connection stability issues of traditional precast concrete shear wall connection methods, which require climbing to operate at heights when disassembling templates, are solved, thus achieving convenient disassembly and stable connection.
Patent Information
- Application Number
- CN202423313527.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Traditional precast concrete shear wall connection methods require working at heights when dismantling the outer formwork, which poses safety hazards, is cumbersome, and results in insufficient connection stability.
The precast concrete shear wall adopts a combination structure of limiting columns, template components and threaded sleeves, including inner baffle, outer baffle, threaded sleeve and screw. Through the positioning of the limiting columns, the design of the template components and the connection of the threaded sleeves, the stable connection and convenient disassembly of the precast concrete shear wall are achieved.
No need for outdoor climbing operations, facilitating formwork disassembly, improving construction safety, and enhancing connection stability through threaded sleeve connections, thereby improving construction efficiency and safety.
Smart Images
Figure CN223706787U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, and in particular to a prefabricated concrete shear wall connection structure. Background Technology
[0002] Precast reinforced concrete structures are one of the important directions in the development of building structures in my country, offering advantages such as controllable product quality, environmental friendliness, and convenient construction. The vertical connection areas between precast concrete shear walls are sensitive parts and weak points in these structures. Therefore, the connection methods between precast concrete shear walls significantly impact the structure's safety, durability, and functionality. Traditional connection methods for precast concrete shear wall structures mainly include: grouted sleeve connections, pre-drilled hole grout anchor lap joints, and mechanical connections.
[0003] In the existing technology, the most common way to connect the upper and lower concrete pours is by pouring. This is beneficial to improve the stability of the concrete wall connection. However, pouring requires the use of inner and outer formwork. If the shear wall is located outdoors, it is necessary to climb to a height to dismantle the outer formwork. This operation is cumbersome and has certain dangers. Utility Model Content
[0004] The purpose of this utility model is to address the problems existing in the background technology by proposing a prefabricated concrete shear wall connection structure.
[0005] The technical solution of this utility model is a prefabricated concrete shear wall connection structure, comprising:
[0006] Multiple limiting columns are provided, and multiple positioning slots are opened at the upper and lower ends of the precast concrete for the end of the limiting column to be inserted; a round tube is vertically connected to the limiting column.
[0007] The template assembly includes an inner baffle, an outer baffle, multiple threaded sleeves, and multiple screws. The multiple threaded sleeves are all connected to the outer baffle. The inner baffle has multiple through holes for the screws to pass through. The multiple screws pass through the multiple through holes and are threadedly connected to the multiple threaded sleeves.
[0008] Preferably, the inner baffle is provided with multiple feed pipes, which are inclined and have their bottom openings flush with the inner side of the inner baffle.
[0009] Preferably, multiple insert plates are slidably arranged on the inner baffle, and the multiple insert plates are arranged one-to-one with multiple feed pipes. The inner baffle has multiple insertion holes for the multiple insert plates to pass through, and the insertion holes are connected to the inner cavity of the corresponding feed pipe.
[0010] Preferably, the inner side of the insert plate is flush with the inner side of the inner baffle.
[0011] Preferably, clamping plates are provided at both the upper and lower ends of the outer side of the outer baffle, and an elastic component connects the clamping plates to the outer baffle.
[0012] Preferably, the elastic component includes a guide rod, a spring, and a limiting block, wherein the guide rod is connected to the outer baffle, the clamping plate is slidably disposed on the guide rod, the limiting block is connected to the end of the guide rod, and the spring is sleeved and installed on the guide rod.
[0013] Compared with the prior art, the present invention has the following beneficial technical effects:
[0014] 1. The template components in this technical solution make it easy to disassemble the outer baffle on one side of the exterior wall without having to climb outdoors, thus improving construction safety.
[0015] 2. The combination of the round tube and the threaded sleeve allows for easy positioning of the outer baffle.
[0016] 3. The use of a screw and threaded sleeve connection can improve the stability of the connection between the inner baffle and the outer baffle. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model.
[0018] Figure 2 This is an exploded view of the present invention.
[0019] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A.
[0020] Reference numerals: 1. Inner baffle; 101. Perforation; 102. Insertion hole; 2. Outer baffle; 3. Limiting column; 4. Round tube; 5. Threaded sleeve; 6. Screw; 7. Feed pipe; 8. Insert plate; 9. Clamping plate; 10. Guide rod; 11. Spring; 12. Limiting block; 13. Precast concrete; 131. Positioning groove. Detailed Implementation
[0021] Example 1
[0022] like Figures 1-3 As shown in the figure, the prefabricated concrete shear wall connection structure proposed in this embodiment includes a formwork assembly and multiple limiting columns 3.
[0023] The precast concrete 13 has multiple positioning slots 131 at both the upper and lower ends for the insertion of the end of the limiting column 3; a round pipe 4 is vertically connected to the limiting column 3; the template assembly includes an inner baffle 1, an outer baffle 2, multiple threaded sleeves 5 and multiple screws 6, the multiple threaded sleeves 5 are all connected to the outer baffle 2, the inner baffle 1 has multiple through holes 101 for the screws 6 to pass through, the multiple screws 6 pass through the multiple through holes 101 respectively and are threadedly connected to the multiple threaded sleeves 5 respectively.
[0024] The inner baffle 1 is provided with multiple feed pipes 7. The feed pipes 7 are inclined and the bottom opening of the feed pipes 7 is flush with the inner side of the inner baffle 1.
[0025] Multiple insert plates 8 are slidably arranged on the inner baffle 1, and the multiple insert plates 8 are arranged one-to-one with multiple feed pipes 7. The inner baffle 1 has multiple insertion holes 102 for the multiple insert plates 8 to pass through. The insertion holes 102 are connected to the inner cavity of the corresponding feed pipe 7. The insert plates 8 are used to prevent residual concrete inside the feed pipe 7 from sticking to the bottom of the poured concrete. The inner side of the insert plate 8 is flush with the inner side of the inner baffle 1. This arrangement makes the concrete wall of the pouring port flush with the main wall, improving the aesthetics.
[0026] Specifically, when assembling the two precast concrete blocks 13 arranged side by side, firstly, the bottom ends of multiple limiting columns 3 are inserted into multiple positioning slots 131 located at the lower precast concrete block 13. Then, the upper precast concrete block 13 is aligned with the lower precast concrete block 13, so that the upper ends of the limiting columns 3 are inserted into the positioning slots 131 located at the upper end. This completes the limiting work of the two precast concrete blocks 13, forming a pouring cavity between the two precast concrete blocks 13. Within the pouring cavity, the two blocks are... The protruding steel bars of the precast concrete 13 are tied together with wire. Then, the inner baffle 1 and the outer baffle 2 are placed on the inner and outer sides of the precast concrete 13 respectively, so that the multiple threaded sleeves 5 on the outer baffle 2 pass through the multiple round pipes 4 respectively, thereby realizing the positioning of the outer baffle 2. The multiple through holes 101 on the inner baffle 1 are aligned with the multiple round pipes 4 respectively, and the screw 6 is passed through the through holes 101 to make it threadedly connected to the corresponding threaded sleeve 5, thus completing the fixed connection between the inner baffle 1 and the outer baffle 2.
[0027] Next, the pouring work begins. Concrete is poured into the inside of the pouring chamber through the feed pipe 7. There are multiple feed pipes 7, which can achieve uniform filling. During the filling process, a vibrator can be inserted into the inside of the feed pipe 7 to compact the concrete. It should be noted that when the compacted concrete is about to cover the upper end of the feed pipe 7, the filling is stopped. Then, the lower part of the insert plate 8 is inserted into the inside of the insertion hole 102 to block the output port of the feed pipe 7.
[0028] After the concrete has solidified, remove the inner baffle 1 and the outer baffle 2. First, rotate the screw 6 to separate it from the threaded sleeve 5, thereby releasing the fixed connection between the inner baffle 1 and the outer baffle 2. Then, disassemble the inner baffle 1 and subsequently disassemble the multiple insert plates 8 to separate them from the concrete. During the pouring process, there is a small amount of concrete inside the feed pipe 7. Place the drill bit inside the feed pipe 7 and use a hammering method to break and remove the concrete inside the feed pipe 7. Then, insert a cylinder into the inside of the round pipe 4 so that the cylinder and the end of the threaded sleeve 5 are pressed together. Using a hammer to strike the cylinder can accelerate the separation of the outer baffle 2.
[0029] It is worth noting that a small cavity is formed inside the circular tube 4, which can be filled with concrete during construction.
[0030] Example 2
[0031] like Figure 3 As shown in the figure, the prefabricated concrete shear wall connection structure proposed in this embodiment, compared with the first embodiment, has clamping plates 9 at both the upper and lower ends of the outer side of the outer baffle 2. An elastic component is connected between the clamping plate 9 and the outer baffle 2. The elastic component includes a guide rod 10, a spring 11 and a limiting block 12. The guide rod 10 is connected to the outer baffle 2, the clamping plate 9 is slidably disposed on the guide rod 10, the limiting block 12 is connected to the end of the guide rod 10, and the spring 11 is sleeved and installed on the guide rod 10. Before installing the outer baffle 2, a plastic film is wrapped around the inner side of the outer baffle 2, and the clamping plate 9 is used to clamp the plastic film, so that the outer baffle 2 can be easily detached from the concrete wall.
[0032] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.
Claims
1. A prefabricated concrete shear wall connection structure, characterized in that, include: Multiple limiting columns (3) are provided, and multiple positioning grooves (131) are provided at the upper and lower ends of the precast concrete (13) for the ends of the limiting columns (3) to be inserted; a round tube (4) is vertically connected to the limiting column (3); The template assembly includes an inner baffle (1), an outer baffle (2), multiple threaded sleeves (5) and multiple screws (6). The multiple threaded sleeves (5) are all connected to the outer baffle (2). The inner baffle (1) has multiple through holes (101) for the screws (6) to pass through. The multiple screws (6) pass through the multiple through holes (101) and are threadedly connected to the multiple threaded sleeves (5).
2. The prefabricated concrete shear wall connection structure according to claim 1, characterized in that, Multiple feed pipes (7) are provided on the inner baffle (1). The feed pipes (7) are inclined. The bottom opening of the feed pipes (7) is flush with the inner side of the inner baffle (1), and the bottom opening of the feed pipes (7) is flush with the inner side of the inner baffle (1).
3. The prefabricated concrete shear wall connection structure according to claim 2, characterized in that, Multiple insert plates (8) are slidably arranged on the inner baffle (1). The multiple insert plates (8) are arranged in a one-to-one correspondence with multiple feed pipes (7). Multiple insertion holes (102) are opened on the inner baffle (1) for the multiple insert plates (8) to pass through. The insertion holes (102) are connected to the inner cavity of the corresponding feed pipe (7).
4. The prefabricated concrete shear wall connection structure according to claim 3, characterized in that, The inner side of the insert plate (8) is flush with the inner side of the inner baffle (1).
5. The prefabricated concrete shear wall connection structure according to claim 1, characterized in that, The outer baffle (2) is provided with clamping plates (9) at both the upper and lower ends of its outer side, and an elastic component is connected between the clamping plates (9) and the outer baffle (2).
6. The prefabricated concrete shear wall connection structure according to claim 5, characterized in that, The elastic component includes a guide rod (10), a spring (11), and a limiting block (12). The guide rod (10) is connected to the outer baffle (2), the clamping plate (9) is slidably disposed on the guide rod (10), the limiting block (12) is connected to the end of the guide rod (10), and the spring (11) is sleeved and installed on the guide rod (10).