A structural formwork root support reinforcing device
The combination structure of L-shaped steel plates and detachable positioning components solves the problems of steel bar damage and grout leakage in the construction of reinforced concrete columns and shear walls, achieving precise support and grout leakage prevention, improving construction quality and efficiency, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MCC TIANGONG GROUP
- Filing Date
- 2025-05-07
- Publication Date
- 2026-05-29
AI Technical Summary
In the existing technology, during the construction of reinforced concrete columns and shear walls, it is easy to cut the floor and ground steel bars or damage the water and electricity pre-embedded pipes. In addition, no effective anti-grout leakage measures are taken at the base of the formwork, which leads to problems such as concrete root rot and grout leakage, affecting the construction quality and efficiency.
The structure adopts a combination of L-shaped steel plates and detachable positioning components, including positioning screws, steel sleeves and positioning nuts, to form precise support and grout leakage prevention at the base of the formwork, avoiding the damage to the floor slab reinforcement and water and electricity pre-embedded pipes caused by the traditional drilling and insertion method.
It achieves precise support and grout leakage prevention at the base of the formwork, avoids damage to the reinforcing bars and embedded pipes, improves construction quality and efficiency, reduces production costs, and is applicable to a variety of engineering scenarios.
Smart Images
Figure CN224300423U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of reinforced concrete construction technology, and in particular relates to a structural formwork root support and reinforcement device, specifically applicable to the formwork root support and grout leakage prevention construction of concrete columns and shear walls. Background Technology
[0002] In existing technologies, the construction of reinforced concrete columns and shear walls typically employs ground drilling to insert positioning reinforcement bars for formwork. However, this method is prone to cutting floor and ground reinforcement bars or damaging pre-embedded water and electricity pipes during drilling. Furthermore, the lack of effective grout leakage prevention measures at the base of the formwork leads to problems such as rotten roots and grout leakage at the base of the concrete shear walls and columns, severely impacting construction quality. Therefore, there is an urgent need for a device and method that can avoid these problems while improving construction efficiency. Summary of the Invention
[0003] This application provides a structural formwork root support and reinforcement device to address the technical problem that existing formwork methods easily cut steel bars or damage embedded pipes, leading to concrete root damage and grout leakage.
[0004] To solve at least one of the above-mentioned technical problems, the technical solution adopted in this application is:
[0005] A structural formwork root support and reinforcement device, comprising:
[0006] L-shaped steel plates are used to prevent grout leakage at the base and to support the formwork. They are placed on both sides of the thickness of the concrete column or shear wall and are positioned opposite each other.
[0007] A positioning assembly for connecting the L-shaped steel plate or a template placed on the L-shaped steel plate, comprising a steel sleeve and a positioning screw, wherein the positioning screw passes through the steel sleeve and is fixed to the L-shaped steel plate or the template by a nut;
[0008] Horizontal and longitudinal keels, which are intersected on the outside of the template, are used to fix the template and form a fixed whole with the L-shaped steel plate through the fixing components; reinforcing bars, which are intersected to form a reinforcing mesh, are used to form a concrete structure and are constructed inside the template.
[0009] The L-shaped steel plate abuts against the bottom of the support formwork and can closely adhere to the base of the concrete column or shear wall to form a closed structure with the ground.
[0010] Furthermore, the L-shaped steel plate is arranged along the length of the concrete column or shear wall, and its length is the same as that of the concrete column or shear wall.
[0011] Furthermore, the horizontal surface of the L-shaped steel plate is in contact with the ground and is fixed to the ground by positioning screws; a plurality of positioning screws are spaced apart on the horizontal surface of the L-shaped steel plate.
[0012] Furthermore, several positioning components are provided in parallel on the vertical surface of the L-shaped steel plate.
[0013] Furthermore, several stiffening plates are provided on the L-shaped steel plate, and the stiffening plates are vertically welded to the L-shaped steel plate and the template.
[0014] Furthermore, the horizontal section of the stiffening plate is adapted to the horizontal plane of the L-shaped steel plate; and its vertical section is higher than the vertical height of the L-shaped steel plate.
[0015] Furthermore, the L-shaped steel plate has screw holes that mate with the positioning screws and the positioning rods; at least one row of screw holes is provided along the height direction of the L-shaped steel plate.
[0016] Furthermore, at least one row of positioning components for fixing the position is provided in the lower section of the template near the L-shaped steel plate; and the positioning screw passes through the transverse keel and engages with the nut.
[0017] Furthermore, the L-shaped steel plate is made of steel plate, and its length is made in sections or as a whole according to the column section or shear wall length, and processed into right angles; the length of the steel sleeve is adapted to the section of the concrete column or shear wall.
[0018] This application discloses a structural formwork root support and reinforcement device. Through a combination of L-shaped steel plates and detachable positioning components, it achieves precise support and grout leakage prevention at the formwork root, while avoiding the damage to floor slab reinforcement and pre-embedded water and electricity pipes caused by traditional drilling and reinforcement insertion methods. It is not only simple in structure and easy to assemble and disassemble, but also reusable, improving construction quality and efficiency. Furthermore, it avoids cutting reinforcement or damaging pre-embedded pipes, effectively preventing concrete root rot and grout leakage. It has low production costs and strong applicability. Attached Figure Description
[0019] Figure 1 This is a front view of a structural template root support and reinforcement device according to this application;
[0020] Figure 2 This is a side view of the front view of the support and reinforcement device in this application;
[0021] Figure 3 This is a front view of the construction status of the structural formwork root support reinforcement in this application;
[0022] Figure 4 This is a side view of the construction status of the structural formwork root support reinforcement in this application.
[0023] In the picture:
[0024] 10. L-shaped steel plate; 20. Positioning screws; 30. Positioning assembly.
[0025] 31. Steel sleeve; 32. Positioning screw; 33. Nut.
[0026] 40, stiffening plate 50, transverse keel 60, longitudinal keel
[0027] 70, steel bars 80, formwork Detailed Implementation
[0028] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0029] This embodiment proposes a structural template root support and reinforcement device, such as... Figure 1 As shown, the structure includes an L-shaped steel plate 10 for preventing grout leakage at the base and supporting the structural formwork; positioning screws 20 for fixing the L-shaped steel plate 10; a stiffening plate 40 for forming a whole with the structural formwork 80 and the L-shaped steel plate 10; and a positioning assembly 30 for connecting the L-shaped steel plate 10 or placing the formwork 80 on the L-shaped steel plate 10. It also includes transverse joists 50 and longitudinal joists 60 for fixing the formwork 80 and forming a whole with the L-shaped steel plate 10, as well as reinforcing bars 70 and the formwork 80 for forming the concrete structure. Through the combined structure of the L-shaped steel plate 10 and the detachable positioning assembly 30, precise support and grout leakage prevention at the base of the formwork 80 are achieved, while avoiding the damage to the floor slab reinforcement and pre-embedded water and electricity pipes caused by traditional drilling and reinforcement insertion methods.
[0030] like Figure 2 As shown, it includes two sets of L-shaped steel plates 10 placed back-to-back, mainly used to prevent grout leakage at the base and support the formwork 80. These plates are positioned on both sides of the thickness of the concrete column or shear wall. The L-shaped steel plates 10 are arranged along the length of the concrete column or shear wall, and their length is the same as the length of the concrete column or shear wall. The L-shaped steel plates 10 are made of steel plates, and their length is produced in sections or as a whole according to the column cross-section or shear wall length, and processed into 90° right angles. The L-shaped steel plates 10 abut against the bottom of the support formwork and can form a closed structure with the base of the concrete column or shear wall and the ground, thereby achieving precise support and grout leakage prevention at the base of the formwork, while avoiding damage to the floor slab reinforcement and water and electricity pre-embedded pipes caused by traditional drilling and insertion methods.
[0031] The horizontal surface of the L-shaped steel plate 10 is in contact with the ground and is fixed to the ground by positioning screws 20. That is, the positioning screws 20 are vertically perpendicular to the horizontal surface of the L-shaped steel plate 10, and a number of positioning screws 20 are spaced apart on the horizontal surface of the L-shaped steel plate 10.
[0032] The L-shaped steel plate 10 features a 90° right-angle design, closely adhering to the base of concrete columns or shear walls to form a tight, closed structure with the ground. This effectively prevents grout from seeping out from the base during concrete pouring (i.e., the "root rot" phenomenon). Simultaneously, its horizontal section serves as the bottom support for the formwork 80, replacing the traditional method of drilling holes in the ground for reinforcement, thus avoiding damage to the floor slab's structural reinforcement or embedded pipelines. It is then temporarily fixed to the ground using positioning screws 20 to ensure accurate installation. Therefore, the L-shaped steel plate 10 not only prevents grout leakage but also provides support for the structural formwork 80.
[0033] Furthermore, several stiffening plates 40 are provided on the L-shaped steel plate 10. The horizontal section of the stiffening plate 40 is adapted to the horizontal plane of the L-shaped steel plate 10, and its vertical section is higher than the vertical height of the L-shaped steel plate 10. The purpose is to make the stiffening plate 40 perpendicularly welded to the L-shaped steel plate 10 and the formwork 80. The stiffening plates 40 are mainly welded to the L-shaped steel plate 10, which not only enhances the deformation resistance of the L-shaped steel plate 10, but also ensures that the root of the formwork 80 does not shift due to the lateral pressure of the concrete.
[0034] like Figure 4 As shown, several parallel positioning components 30 are also provided on the vertical surface of the L-shaped steel plate 10. These components include a steel sleeve 31 for removing the positioning screw 32 and the L-shaped steel plate 10 after concrete pouring, a positioning screw 32 for connecting the L-shaped steel plate 10 and the template 80, and a nut 33 for fixing the template through which the positioning screw passes. The positioning screw 32 passes through the steel sleeve 31 and is fixed to the L-shaped steel plate 10 or the template 80 by the nut 33, and the length of the steel sleeve 31 is adapted to the cross-section of the concrete column or shear wall.
[0035] For the L-shaped steel plate 10, the steel sleeve 31 horizontally supports the L-shaped steel plates 10 on both sides. The positioning screw 32 passes through the L-shaped steel plate 10 and the steel sleeve 31 in sequence, and its two ends are locked and fixed by nuts 33 respectively. For the template 80 above the L-shaped steel plate 10, the steel sleeve 31 horizontally supports the template 80 on both sides. The positioning screw 32 passes through the transverse keel 50, the longitudinal keel 60, the template 80 and the steel sleeve 31 in sequence, and its two ends are also locked and fixed by nuts 33 respectively. The steel sleeve 31 not only supports the L-shaped steel plates 10 and the template 80 on both sides, but also protects the positioning screw 32.
[0036] The positioning screw 32 penetrates the template 80 or the L-shaped steel plate 10 and is locked in place by the nut 33, forming a rigid whole with the template 80, the L-shaped steel plate 10, the transverse joists 50, and the longitudinal joists 60, thus enhancing stability. Furthermore, the steel sleeve 31 is fitted over the positioning screw 32, allowing for easy removal of the screw 32 and the L-shaped steel plate 10 after the concrete has hardened. This detachable design of the positioning screw 32 and the steel sleeve 31 not only allows for reuse but also prevents the positioning screw 32 from adhering to the concrete.
[0037] like Figure 3 As shown, at least one row of positioning components 30 for fixing the position is provided in the lower section of the template 80 near the L-shaped steel plate 10. At this position, the positioning screw 32 passes through the L-shaped steel plate 10 and the transverse keel 50 and then engages with the nut 33. Moreover, the longitudinal keel 60 and the stiffening plate 40 or the positioning screw 32 are staggered to avoid mutual interference.
[0038] The L-shaped steel plate 10 has screw holes that mate with the positioning screws 20 and the positioning screw rods 32, and at least one row of screw holes is provided along the height direction of the L-shaped steel plate 10.
[0039] In this embodiment, the transverse joists 50 and longitudinal joists 60 are intersected on the outside of the formwork 80 to fix the formwork 80 and form a fixed whole with the L-shaped steel plate 10 through the fixing component 30. The reinforcing bars 70 are intersected to form a reinforcing mesh, which is placed inside the formwork to form the concrete structure. The transverse joists 50 and longitudinal joists 60 are connected to the formwork 80 through positioning screws 32 to form a three-dimensional support system; this synergistic reinforcement of the stiffening plate 40 and the joists can further disperse the lateral pressure during concrete pouring and prevent formwork bulging.
[0040] Components such as L-shaped steel plate 10 and positioning screw 32 can be flexibly adjusted according to the cross-sectional dimensions of concrete columns or shear walls. Standardized and modular construction not only enables segmented assembly or overall installation, but also adapts to different engineering needs.
[0041] All components proposed in this application are disassembled and reusable, reducing material waste and improving construction economy. The support and reinforcement device proposed in this application not only eliminates grout leakage and root rot at the formwork base, but also ensures the L-shaped steel plate tightly seals the base of the formwork, preventing concrete grout loss and ensuring molding quality. Protecting the reinforcing bars and embedded pipes eliminates the need for drilling holes in the ground for reinforcement, completely avoiding cutting floor slab reinforcement or damaging water and electricity pipelines. Furthermore, the convenient assembly and disassembly, and reusable steel sleeve design makes the positioning screws easy to remove, and the L-shaped steel plate and screws can be reused, reducing construction costs. The positioning screw and keel system proposed in this application ensures accurate formwork positioning, avoids cross-sectional dimension deviations, and improves formwork support accuracy; the stiffening plate and keel work together to resist concrete lateral pressure, preventing formwork deformation or bursting, thereby enhancing structural stability. Simultaneously, it can be adapted to columns and shear walls of different cross-sectional dimensions, suitable for various scenarios such as high-rise buildings and underground engineering, demonstrating wide applicability.
[0042] A construction method for supporting and reinforcing the root of structural formwork, employing the support and reinforcement device described above, includes the following steps:
[0043] S1. Process the L-shaped steel plate 10 and the stiffening plate 40 to ensure that the L-shaped steel plate 10 is processed into a right angle, and make holes in the L-shaped steel plate 10 for mating with the positioning screw 32.
[0044] S2. Machining positioning screw 32 and steel sleeve 31, the length of steel sleeve 31 is determined according to the cross section of concrete column or shear wall.
[0045] S3. Install the reinforcing bars 70 and mark the positioning lines of the formwork 80.
[0046] S4. Fix the L-shaped steel plate 10, stiffening plate 40, positioning screw 20, positioning screw 32 and steel sleeve 31, and check the dimensions between the vertical surfaces of the L-shaped steel plates 10 on both sides.
[0047] S5. After confirming that the position of template 80 is accurate, install template 80 and fix the positioning screws 32 in sequence using nuts 33.
[0048] S6. Install the horizontal keel 50 and the longitudinal keel 60, and fix the template 80 with the help of the positioning screw 32 and the steel sleeve 31.
[0049] S7. After the concrete is poured, remove the formwork 80, L-shaped steel plate 10, positioning screw 20, positioning screw rod 32, horizontal keel 50 and longitudinal keel 60.
[0050] S8. Repeat steps S3-S7 to proceed to the next construction operation.
[0051] This application discloses a structural formwork root support and reinforcement device and construction method. Through a combination of L-shaped steel plates and detachable positioning components, it achieves precise support and grout leakage prevention at the formwork root, while avoiding the damage to floor slab reinforcement and pre-embedded water and electricity pipes caused by traditional drilling and reinforcement insertion methods. The detachable rigid support and sealing grout leakage prevention design solve common quality problems in traditional formwork processes, while improving construction efficiency and economic benefits, demonstrating significant engineering application value. Not only is the structure simple and easy to assemble and disassemble, but it is also reusable, improving construction quality and efficiency; furthermore, it avoids cutting reinforcement or damaging pre-embedded pipes, effectively preventing concrete root rot and grout leakage, with low production costs and strong applicability.
[0052] The embodiments of this application have been described in detail above. These descriptions are merely preferred embodiments and should not be construed as limiting the scope of this application. All equivalent variations and modifications made within the scope of this application should still fall within the patent coverage of this application.
Claims
1. A structural template root support and reinforcement device, characterized in that, include: L-shaped steel plates are used to prevent grout leakage at the base and to support the formwork. They are placed on both sides of the thickness of the concrete column or shear wall and are positioned opposite each other. A positioning assembly for connecting the L-shaped steel plate or a template placed on the L-shaped steel plate, comprising a steel sleeve and a positioning screw, wherein the positioning screw passes through the steel sleeve and is fixed to the L-shaped steel plate or the template by a nut; Horizontal and vertical keels are arranged crosswise on the outside of the template to fix the template and form a fixed whole with the L-shaped steel plate through the positioning component; Reinforcing bars, which are intersected and form a reinforcing mesh for forming a concrete structure, are placed within the formwork; The L-shaped steel plate abuts against the bottom of the support formwork and can closely adhere to the base of the concrete column or shear wall to form a closed structure with the ground.
2. The structural template root support and reinforcement device according to claim 1, characterized in that, The L-shaped steel plate is arranged along the length of the concrete column or shear wall, and its length is the same as that of the concrete column or shear wall.
3. A structural template root support and reinforcement device according to claim 1 or 2, characterized in that, The horizontal surface of the L-shaped steel plate is in contact with the ground and is fixed to the ground by positioning screws; a number of positioning screws are spaced apart on the horizontal surface of the L-shaped steel plate.
4. The structural template root support and reinforcement device according to claim 3, characterized in that, Several positioning components are also provided in parallel on the vertical surface of the L-shaped steel plate.
5. The structural template root support and reinforcement device according to claim 4, characterized in that, Several stiffening plates are also provided on the L-shaped steel plate, and the stiffening plates are vertically welded to the L-shaped steel plate and the template.
6. The structural template root support and reinforcement device according to claim 5, characterized in that, The horizontal section of the stiffening plate is adapted to the horizontal plane of the L-shaped steel plate; and its vertical section is higher than the vertical height of the L-shaped steel plate.
7. The structural template root support and reinforcement device according to claim 6, characterized in that, The L-shaped steel plate has screw holes that mate with the positioning screws and the positioning rods; at least one row of screw holes is provided along the height direction of the L-shaped steel plate.
8. A structural template root support and reinforcement device according to claim 6 or 7, characterized in that, At least one row of positioning components for fixing the position is provided in the lower section of the template near the L-shaped steel plate; and the positioning screw passes through the transverse keel and engages with the nut.
9. A structural template root support and reinforcement device according to claim 8, characterized in that, The L-shaped steel plate is made of steel plate, and its length is made in sections or as a whole according to the column section or shear wall length, and processed into right angles; the length of the steel sleeve is adapted to the section of the concrete column or shear wall.