An external scaffolding tieback for shear walls

Abstract

The utility model discloses a kind of outer scaffold wall connecting piece for shear wall, including vertical pole, cross bar, connecting plate and main reinforcement, vertical pole is vertically arranged and bottom is equipped with bottom plate, the surface of vertical pole is fixedly installed right-angle fastener and is connected with cross bar by right-angle fastener, the surface of cross bar front end is equipped with two connecting pieces, connecting plate is fixedly connected with connecting piece, connecting plate is L type structure and end is bent and formed with connecting hook, connecting hook is sleeved in main reinforcement outer and is welded with main reinforcement connection.The utility model utilizes the connecting plate of L type and the connecting hook of its end, directly set and weld on the vertical main reinforcement of shear wall already, This completely avoids the process of opening hole and pre-buried steel pipe on formwork, fundamentally solves the installation difficult problem caused by pre-buried position inaccuracy of traditional method, and does not cause any damage to concrete structure surface, guarantee the integrity and appearance quality of shear wall.

Description

Technical Field

[0001] This utility model relates to the field of scaffolding technology, specifically to a wall tie for external scaffolding of shear walls. Background Technology

[0002] External scaffolding wall ties are usually made by pre-embedding steel pipes. That is, before pouring concrete, a short steel pipe is pre-embedded in the shear wall. After demolding, the scaffolding uprights or horizontal bars are connected to the pre-embedded steel pipes through fasteners.

[0003] Currently, existing shear wall scaffolding has the following drawbacks: the pre-embedded positions must be extremely precise, otherwise they will not align with the positions of the scaffolding uprights or horizontal bars, resulting in installation failure or unstable connections; the pre-embedded steel pipes need to be chiseled out after the concrete has hardened, and then cut and repaired after the scaffolding is dismantled, which is not only cumbersome and inefficient, but also damages the concrete structure, affecting its appearance and quality. Therefore, a wall tie for shear wall scaffolding is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a wall tie for external scaffolding of shear walls, solving the following problems in the use of existing external scaffolding for shear walls: the pre-embedded position must be extremely precise, otherwise it will not align with the position of the scaffolding uprights or horizontal bars, resulting in installation failure or weak connection; the pre-embedded steel pipes need to be chiseled out after the concrete has hardened, and then cut and repaired after the scaffolding is dismantled, which not only makes the construction process cumbersome and inefficient, but also damages the concrete structure, affecting the appearance and quality.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a wall tie for external scaffolding of shear walls, comprising uprights, horizontal bars, connecting plates, and main reinforcement bars. The uprights are vertically arranged and have a base plate installed at the bottom. Right-angle fasteners are fixedly installed on the surface of the uprights and connected to the horizontal bars through the right-angle fasteners. Two connectors are installed at the front end of the surface of the horizontal bars. The connecting plates are fixedly connected to the connectors. The connecting plates have an L-shaped structure and the ends are bent to form connecting hooks. The connecting hooks are sleeved on the outside of the main reinforcement bars and welded to the main reinforcement bars.

[0008] As a further preferred embodiment of this utility model, the connector includes two buckle plates, one end of which is hinged and the other end is fixedly connected by bolts.

[0009] As a further preferred embodiment of this utility model, the top of the upper buckle plate forms a support platform, and a stud is vertically arranged in the middle of the top surface of the support platform. Several rubber strips are also fixed on the top surface of the support platform.

[0010] As a further preferred embodiment of this utility model, the top of the connecting plate is provided with a connecting hole and is connected to a stud through the connecting hole. The top of the connecting plate is provided with a protruding strip, and several anti-slip strips are welded to the side wall of the connecting plate.

[0011] As a further preferred embodiment of this utility model, a connecting plate is installed on the surface of the upright, and a connecting block is vertically welded to the top surface of the connecting plate. A total of four connecting blocks are arranged in a ring and are evenly distributed.

[0012] (III) Beneficial Effects

[0013] This utility model provides a wall tie for external scaffolding of shear walls. It has the following beneficial effects:

[0014] This invention enables non-destructive structural construction without pre-embedding: L-shaped connecting plates and their end hooks are directly fitted and welded to the existing vertical main reinforcement bars of the shear wall. This completely eliminates the need for drilling holes in the formwork and pre-embedding steel pipes, fundamentally solving the installation difficulties caused by inaccurate pre-embedding positions in traditional methods. Furthermore, it does not cause any damage to the concrete structural surface, ensuring the integrity and appearance quality of the shear wall.

[0015] Easy to install and flexibly adjustable in position: The connecting plates are fixed by connectors (such as hinged buckles and bolts) set on the horizontal bars, allowing for a certain degree of freedom in adjusting the installation position of the connecting plates in both horizontal and vertical directions. Construction workers can flexibly adjust the final connection points of the wall ties according to the actual erection of the scaffolding, greatly improving the adaptability and efficiency of construction.

[0016] The connection is robust and reliable: the connecting hook directly fits onto the main reinforcement bar and is welded, forming a rigid connection with direct force transmission, ensuring reliable anchorage between the wall tie and the main building structure. The raised strip on the top of the connecting plate, the anti-slip strip on the side wall, and the cooperation with the rubber strip on the support platform effectively increase the friction between the connecting plate and the connector, preventing slippage and loosening, further enhancing the stability and safety of the connection. The welding method between the connecting hook and the main reinforcement bar is more robust and has stronger tensile and shear resistance than the fastener connection between scaffolding and embedded pipes in traditional wall ties. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of the wall tie for external scaffolding used in shear walls according to the present invention;

[0018] Figure 2 This is a structural diagram of the connecting plate described in this utility model;

[0019] Figure 3 This is a structural diagram of the connector described in this utility model.

[0020] In the diagram: 1. Upright pole; 2. Right-angle fastener; 3. Connecting plate; 4. Connecting block; 5. Base plate; 6. Horizontal bar; 7. Connecting piece; 8. Connecting plate; 9. Connecting hole; 10. Raised strip; 11. Anti-slip strip; 12. Main rib; 13. Connecting hook; 14. Stud; 15. Rubber strip; 16. Buckle plate; 17. Bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-3 This utility model provides a technical solution: a wall tie for external scaffolding of shear walls, including uprights 1, horizontal bars 6, connecting plates 8, and main reinforcement bars 12. The uprights 1 are vertically arranged and have a base plate 5 installed at their bottom. Right-angle fasteners 2 are fixedly installed on the surface of the uprights 1 and connected to the horizontal bars 6 via the right-angle fasteners 2. Two connectors 7 are installed at the front end of the surface of the horizontal bars 6. The connecting plates 8 are fixedly connected to the connectors 7. The connecting plates 8 have an L-shaped structure and are bent at the end to form a connecting hook 13. The connecting hook 13 is sleeved on the outside of the main reinforcement bars 12 and welded to them. By directly sleeved and welded to the main reinforcement bars 12 of the shear wall via the connecting hook 13 at the end of the L-shaped connecting plate 8, the wall tie is connected to the "skeleton" of the building's main structure. This method abandons the traditional method of pre-embedded pipes, avoids drilling holes in the formwork and damaging the concrete structural surface, and achieves "non-destructive installation." The L-shaped structure allows the connecting plate 8 to span the space between the scaffolding and the shear wall reinforcement, effectively transferring the force from the scaffolding to the main reinforcement 12 through the welding points, resulting in a clear and direct force transmission path. The base plate 5 at the bottom of the upright 1 increases the contact area with the ground, improving the stability of the upright 1. Connecting the upright 1 and the horizontal bar 6 with right-angle couplers 2 is a mature and reliable connection method in the scaffolding field, ensuring the rigidity and stability of the overall frame.

[0023] Further improvements include two snap-fit ​​plates 16, with one end of each plate hinged and the other end fixedly connected by bolts 17. The top of the upper snap-fit ​​plate 16 forms a support platform, and a stud 14 is vertically installed in the center of the top surface of the platform. Several rubber strips 15 are also fixed to the top surface of the platform. The connector 7, using a hinged and bolted fastening method, acts like a "clamp," allowing for quick clamping and fixing of the crossbar 6. It also facilitates flexible adjustment of the installation position along the length of the crossbar 6 to accommodate the actual position of the main rib 12. The support platform provides a flat support surface for the upper connecting plate 8. The rubber strips 15 increase the friction between the support platform and the connecting plate 8, effectively preventing slippage or wobbling between the connecting plate 8 and the connector 7 under stress, thus enhancing the tightness of the connection.

[0024] Further improvements include a connecting hole 9 at the top of the connecting plate 8, through which it connects to the stud 14. A raised strip 10 is provided on the top of the connecting plate 8, and several anti-slip strips 11 are welded to the side wall of the connecting plate 8. The connecting plate 8 is fitted into the stud 14 of the connecting piece 7 through the connecting hole 9 and secured with a nut. This simple and reliable vertical locking method prevents the connecting plate 8 from being pulled upwards.

[0025] Further improvements include a connecting plate 3 mounted on the surface of the upright, with connecting blocks 4 vertically welded to the top surface of the connecting plate 3. Four connecting blocks 4 are arranged in a ring at equal intervals. The connecting plate 3 and connecting blocks 4 form a standardized interface that can be used to hang safety nets, install additional guardrails, or build construction platforms. This enhances the versatility of the upright 1, making it not only part of the wall tie but also a safe "anchor point," improving the safety and convenience of the entire work area.

[0026] Working Principle: Installation and Anchoring: After the shear wall reinforcement is tied and before pouring concrete, the connecting hook 13 of the connecting plate 8 is directly fitted onto the vertical main reinforcement 12 at the preset position, and the connecting hook 13 is welded to the main reinforcement 12, thereby achieving rigid and permanent anchoring between the wall tie and the main building structure. Scaffolding Connection: When erecting external scaffolding, the upright 1 is placed in an appropriate position, and the horizontal bar 6 is connected to the upright 1 through the right-angle coupler 2. Then, the front end of the horizontal bar 6 is extended to the anchored connecting plate 8. Component Connection and Locking: The horizontal bar 6 is placed into the open connecting piece 7, so that the support of the connecting piece 7 is located below the connecting plate 8. The connecting hole 9 at the top of the connecting plate 8 is aligned with the stud 14 on the support. The connecting piece 7 is closed and tightened with the bolt 17, so that the connecting piece 7 firmly clamps the horizontal bar 6, and at the same time, the bottom of the connecting plate 8 is pressed against the rubber strip 15 of the support. The nut is tightened on the stud 14 to fix the connecting plate 8 vertically. During this process, the protruding strip 10 on the top of the connecting plate 8 and the anti-slip strip 11 on the side wall are in close contact with the connector 7, forming a firm connection that is anti-slip and prevents loosening. Force bearing and transmission: When the scaffold is subjected to external forces (such as wind loads, impacts, etc.), the force is transmitted to the connector 7 through the uprights 1 and horizontal bars 6. The connector 7 then transmits the force to the connecting plate 8, and finally, the force is completely transmitted to the main reinforcement 12 of the shear wall through the welding point, which is borne by the main structure of the building, thereby ensuring the overall stability and safety of the scaffold.

[0027] The components of this utility model are: 1. upright; 2. right-angle coupler; 3. connecting plate; 4. connecting block; 5. base plate; 6. horizontal bar; 7. connector; 8. connecting plate; 9. connecting hole; 10. protruding strip; 11. anti-slip strip; 12. main reinforcement; 13. connecting hook; 14. stud; 15. rubber strip; 16. buckle plate; 17. bolt. All components are general standard parts or parts known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. The problem solved by this utility model is that existing shear wall scaffolding... The following drawbacks exist in the traditional method: the pre-embedded position must be extremely precise, otherwise it will not align with the position of the scaffold uprights 1 or horizontal bars 6, resulting in installation failure or weak connection; the pre-embedded steel pipes need to be chiseled out after the concrete has hardened, and then cut and repaired after the scaffolding is dismantled, which is not only cumbersome and inefficient, but also damages the concrete structure, affecting the appearance and quality. This invention, through the combination of the above components, utilizes an L-shaped connecting plate 8 and its end connecting hook 13 to directly fit and weld onto the existing vertical main reinforcement 12 of the shear wall. This completely avoids the process of drilling holes in the formwork and pre-embedding steel pipes, fundamentally solving the installation difficulties caused by inaccurate pre-embedded positions in traditional methods, and does not cause any damage to the concrete structure, ensuring the integrity and appearance quality of the shear wall. The connecting plate 8 is fixed by connectors 7 (such as hinged buckles 16 and bolts 17) set on the horizontal bars 6, allowing for a certain degree of adjustment in the horizontal and vertical installation positions of the connecting plate 8. Construction workers can flexibly adjust the final connection points of the wall ties according to the actual erection of the scaffolding, greatly improving the adaptability and efficiency of construction. The connecting hook 13 directly fits onto the main reinforcement 12 and is welded, forming a rigid connection with direct force transmission, ensuring reliable anchorage between the wall tie and the main building structure. The protruding strip 10 on the top of the connecting plate 8 and the anti-slip strip 11 on the side wall, as well as the cooperation with the rubber strip 15 on the support platform, effectively increase the friction between the connecting plate 8 and the connecting piece 7, preventing slippage and loosening, and further improving the stability and safety of the connection. The welding method between the connecting hook and the main reinforcement is more robust and has stronger tensile and shear resistance than the fastener connection between the scaffolding and the embedded pipe in traditional wall ties.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A wall tie for external scaffolding of shear walls, comprising uprights (1), horizontal bars (6), connecting plates (8), and main reinforcement bars (12), characterized in that: The upright (1) is set vertically and a base plate (5) is installed at the bottom. A right-angle fastener (2) is fixedly installed on the surface of the upright (1) and connected to the crossbar (6) through the right-angle fastener (2). Two connectors (7) are installed at the front end of the surface of the crossbar (6). The connecting plate (8) is fixedly connected to the connector (7). The connecting plate (8) has an L-shaped structure and the end is bent to form a connecting hook (13). The connecting hook (13) is sleeved on the outside of the main bar (12) and welded to the main bar (12).

2. A wall tie for external scaffolding of shear walls according to claim 1, characterized in that: The connector (7) includes two buckle plates (16), one end of which is hinged and the other end is fixedly connected by bolts (17).

3. A wall tie for external scaffolding of shear walls according to claim 2, characterized in that: The top of the upper buckle plate (16) forms a support platform, and a stud (14) is vertically installed in the middle of the top surface of the support platform. Several rubber strips (15) are also fixed on the top surface of the support platform.

4. A wall tie for external scaffolding of shear walls according to claim 1, characterized in that: The top of the connecting plate (8) is provided with a connecting hole (9) and is connected to the stud (14) through the connecting hole (9). The top of the connecting plate (8) is provided with a protruding strip (10), and several anti-slip strips (11) are welded to the side wall of the connecting plate (8).

5. A wall tie for external scaffolding of shear walls according to claim 1, characterized in that: The surface of the pole (1) is equipped with a connecting plate (3), and the top surface of the connecting plate (3) is vertically welded with a connecting block (4). There are four connecting blocks (4) in total, which are distributed in a ring at equal intervals.

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