A polygonal irregular column formwork clamp for construction engineering

Abstract

This utility model discloses a polygonal irregular column formwork clamp for building engineering, relating to the field of building engineering technology. It comprises multi-layered horizontally arranged irregular column hoops, each layer consisting of multiple sections of channel steel connected end-to-end; stiffening plates one and two, positioned on the inner side of the channel steel according to the angle of the column corner; thick ear plates, located at the ends of the channel steel, with adjacent ear plates connected by high-strength bolts; and vertical fasteners used to fix adjacent multi-layered irregular column hoops. In this utility model, the channel steel column hoops, stiffening plates, ear plates, and double bolt connection structure form a rigid and stable reinforcement system that effectively resists lateral pressure from concrete, prevents formwork bulging and displacement, and ensures the quality of concrete molding. The C-shaped clamps and vertical fasteners connect the horizontal column hoops of each layer into a unified "reinforcement cage," enhancing the system's rigidity and integrity in three-dimensional space, making it particularly suitable for the construction of tall irregular columns.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a polygonal irregular column template clamp for building engineering. Background Technology

[0002] In modern architectural design, for aesthetic and functional reasons, irregularly shaped structural columns such as polygons and arcs are increasingly used. These irregularly shaped columns have unique shapes, which can enhance the artistic effect and space utilization of the building, and have become one of the mainstream design elements of current public buildings and high-end residences.

[0003] Currently, construction sites often use a patchwork approach to reinforcement, employing materials such as ordinary steel pipes, square timber, and tie rods. This results in poor overall integrity of the reinforcement system, uneven stress distribution among components, and a tendency for bulging and deformation under concrete lateral pressure. Furthermore, it relies heavily on on-site cutting and welding, leading to low construction efficiency, significant material waste, and high skill requirements for operators. It also makes it difficult to guarantee the complex angles and curvatures required for irregularly shaped columns, resulting in large deviations in concrete dimensions and a failure to meet fair-faced concrete standards. Additionally, the reinforcement materials have low turnover rates, poor versatility, and high construction costs. Utility Model Content

[0004] This utility model provides a polygonal irregular column formwork clamp for building engineering, in order to solve the problem of deformation of irregular column formwork during concrete pouring in the prior art.

[0005] To achieve the above objectives, according to one aspect of this utility model, a polygonal irregular column formwork clamp for building engineering is provided, comprising: multiple layers of horizontally arranged irregular column hoops, each layer of irregular column hoops being composed of multiple segments of channel steel connected end to end; stiffening plate one and stiffening plate two, which are arranged on the inner side of the channel steel according to the angle of the column corner; thick ear plates, which are arranged at the ends of the channel steel, and adjacent thick ear plates are connected by a high-strength bolt; and vertical fasteners for fixing and connecting the upper and lower adjacent layers of irregular column hoops.

[0006] Furthermore, stiffening plate one is welded to the acute angle of the channel steel, and stiffening plate two is connected to the obtuse angle of the channel steel by high-strength bolt two. Both ends of stiffening plate two are provided with elongated holes that are compatible with high-strength bolt two.

[0007] Furthermore, the second stiffening plate is an arc-shaped plate or a rectangular plate. When the second stiffening plate is an arc-shaped plate, its curvature is compatible with the obtuse angle curvature of the irregular column hoop.

[0008] Furthermore, high-strength bolt one and high-strength bolt two together form a double-safety connection structure to prevent displacement of the irregular column hoop.

[0009] Furthermore, the vertical fasteners include C-shaped clamps that span the channel steel of adjacent irregularly shaped column hoops, with three vertically arranged high-strength bolts passing through the top and bottom of the clamps.

[0010] Furthermore, the top and bottom of the inner side of the card plate are equipped with locking blocks, which are connected to the card plate by high-strength bolts.

[0011] Furthermore, serrations are provided on the contact surface between the card block and the channel steel.

[0012] Furthermore, the clamps on the adjacent irregularly shaped column hoops are arranged in a staggered manner.

[0013] Furthermore, the irregularly shaped column hoops are set outside multiple vertical square timber joists, which are laid at intervals on the outer surface of the thick composite plywood.

[0014] Furthermore, the thick composite plywood, channel steel, stiffening plate one, stiffening plate two, and thick ear plate are all standard parts manufactured to size in the factory.

[0015] By applying the technical solution of this utility model, a strong and stable reinforcement system is formed through the channel steel column hoop, stiffening plate, ear plate and double bolt connection structure. It can effectively resist the lateral pressure of concrete, prevent bulging and displacement, and ensure the quality of concrete molding. The elongated hole design on the second stiffening plate provides installation and adjustment space, and the second stiffening plate can be in the form of arc or rectangle to adapt to obtuse angles with different curvatures, which is highly versatile. The horizontal column hoops of each layer are connected in series into a whole "reinforcement cage" by C-shaped clamping plates and vertical fasteners, which enhances the rigidity and integrity of the system in three-dimensional space. It is particularly suitable for the construction of tall and irregular columns. Each component is prefabricated in the factory and only needs to be assembled on site, which simplifies the construction process, saves a lot of labor and significantly speeds up the construction progress. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0018] Figure 2 A top view of the pentagonal irregular column template clamp provided according to an embodiment of the present utility model is shown;

[0019] Figure 3 A schematic diagram of a vertical fastener structure according to an embodiment of the present invention is shown;

[0020] Figure 4 A top view of the large hexagonal irregular column template clamp provided according to an embodiment of the present utility model is shown;

[0021] Figure 5A top view of a small hexagonal irregular column template clamp provided according to an embodiment of the present utility model is shown.

[0022] The above figures include the following reference numerals:

[0023] 1. Irregular column hoop; 101. Channel steel; 102. Stiffening plate one; 103. Stiffening plate two; 104. Thick ear plate; 105. High-strength bolt one; 106. High-strength bolt two; 107. Oblong hole; 2. Vertical fasteners; 201. Clamping plate; 202. Clamping block; 2021. Serrated edge; 203. High-strength bolt three; 3. Square timber keel; 4. Thick composite plywood. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5 This utility model provides a technical solution: a polygonal irregular column template clamp for building engineering, comprising: multiple layers of horizontally arranged irregular column hoops 1, stiffening plate one 102, stiffening plate two 103, thick ear plate 104 and vertical fasteners 2, wherein each layer of irregular column hoop 1 is composed of multiple sections of channel steel 101 connected end to end, stiffening plate one 102 and stiffening plate two 103 are set on the inner side of channel steel 101 according to the angle of the column corner, thick ear plate 104 is set at the end of channel steel 101, and adjacent thick ear plates 104 are connected by high-strength bolts one 105, and vertical fasteners 2 are used to fix and connect the upper and lower adjacent layers of irregular column hoops 1;

[0026] Stiffening plate 102 is welded to the acute angle of channel steel 101, and stiffening plate 2 103 is connected to the obtuse angle of channel steel 101 by high-strength bolt 2 106. Both ends of stiffening plate 2 103 are provided with elongated holes 107 that are compatible with high-strength bolt 2 106.

[0027] The stiffening plate 2 103 is an arc-shaped plate or a rectangular plate. When the stiffening plate 2 103 is an arc-shaped plate, its curvature matches the obtuse angle curvature of the irregular column hoop 1. The arc-shaped stiffening plate 2 103 can fit the obtuse angle curvature of the irregular column, eliminating reinforcement dead angles and ensuring uniform reinforcement force. This is a key detail to ensure the forming quality of complex-shaped columns.

[0028] The irregular column hoop 1 is set outside multiple vertical square timber joists 3. Multiple square timber joists 3 are laid at intervals on the outer surface of the thick composite plywood 4. The thick composite plywood 4, channel steel 101, stiffening plate one 102, stiffening plate two 103 and thick ear plate 104 are all standard parts processed to size in the factory.

[0029] Specifically, such as Figure 1 and Figure 3 As shown, the vertical fastener 2 includes a C-shaped clamping plate 201, which spans the channel steel 101 of the upper and lower adjacent irregular column hoops 1. The top and bottom of the clamping plate 201 are provided with vertically arranged high-strength bolts 203. The top and bottom of the inner side of the clamping plate 201 are provided with clamping blocks 202. The clamping blocks 202 are connected to the clamping plate 201 through the high-strength bolts 203. The contact surface between the clamping blocks 202 and the channel steel 101 is provided with serrations 2021. The clamping plates 201 on the upper and lower adjacent irregular column hoops 1 are staggered.

[0030] The C-shaped clamp 201 is made of a high-strength steel plate that is cold-bent or welded into a "C" shaped section. Its inner wall width is precisely calculated to be slightly greater than the sum of the height of the upper and lower channel steels 101 and the thickness of the clamp 202, so as to ensure that it can be smoothly fastened. The serrations 2021 on the clamp 202 are used to increase friction and prevent relative slippage.

[0031] First, based on the geometric dimensions of the irregularly shaped columns in the design drawings, all components are prefabricated in the factory:

[0032] The channel steel 101, stiffening plate 102, stiffening plate 2 103, thick ear plate 104 and thick composite plywood 4 are cut to length according to the design dimensions.

[0033] The stiffening plate 103 is processed into an arc-shaped plate or a rectangular plate according to the obtuse angle curvature of the column. The stiffening plate 102 is welded to the inner side of the end of the channel steel 101 at the acute angle using a welding process. The thick ear plate 104 is welded to the end of each section of channel steel 101.

[0034] During on-site construction, follow these steps:

[0035] Template erection: Assemble the thick composite plywood 4 into the design shape of the irregular column, then lay square timber joists 3 on the outside and fix them with nails to form a template system;

[0036] Install irregular column hoop 1: Wrap the pre-processed channel steel 101 around the outside of the square timber keel 3. For obtuse angle parts, fix the stiffening plate 103 with high-strength bolts 106 initially, and use the elongated hole 107 to make fine adjustments to the position to ensure a tight fit with the template.

[0037] Connection and forming: Align the thick ear plates 104 at the ends of adjacent channel steels 101, insert high-strength bolts 105 and pre-tighten them, and connect all the channel steels 101 in this layer end to end to form a closed irregular column hoop 1.

[0038] Final tightening: Use a torque wrench to tighten all high-strength bolts 105 and 106 to the designed torque;

[0039] Vertical reinforcement: Attach the C-shaped clamp 201 across the upper and lower channel steels 101, insert the high-strength bolts 203 to connect with the clamp 202, and tighten the high-strength bolts 203 to make the serrations 2021 engage with the surface of the channel steel 101.

[0040] Installation complete: Vertical fasteners 2 are evenly staggered along the circumference of the column to form a stable overall structure;

[0041] After the concrete is poured and reaches the demolding strength, the components are disassembled in reverse order, and after cleaning and maintenance, they can be reused.

[0042] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A polygonal-shaped column formwork fixture for construction engineering, characterized in that, The utility model relates to a kind of special-shaped column hoop and vertical fastener, including: Multi-layer horizontally arranged special-shaped column hoop (1), each layer of the special-shaped column hoop (1) is formed by the butt joint of multiple channel steel (101); Stiffener one (102) and stiffener two (103) are arranged on the inner side of the channel steel (101) according to the angle of column angle; Thick lug plate (104) is arranged at the end of the channel steel (101), and adjacent thick lug plate (104) is connected by high-strength bolt one (105); Vertical fastener (2) is used to fixedly connect the adjacent multi-layer special-shaped column hoop (1) up and down.

2. The polygonal-shaped column formwork clamp for constructional engineering according to claim 1, characterized in that, The stiffener one (102) is welded at the acute angle of the channel steel (101), the stiffener two (103) is connected at the obtuse angle of the channel steel (101) by high-strength bolt two (106), and the both ends of the stiffener two (103) are provided with long circular hole (107) matched with the high-strength bolt two (106).

3. The polygonal-shaped column formwork clamp for constructional engineering according to claim 2, characterized in that, The stiffener two (103) is arc plate or rectangular plate, when the stiffener two (103) is arc plate, the arc is matched with the curvature of the obtuse angle of special-shaped column hoop (1).

4. The polygonal shaped column formwork clamp for constructional engineering according to claim 2, wherein, The high-strength bolt one (105) and the high-strength bolt two (106) jointly constitute double insurance connection structure for preventing the displacement of the special-shaped column hoop (1).

5. The polygonal shaped column formwork clamp for constructional engineering according to claim 1, characterized in that, The vertical fastener (2) includes C-shaped clamping plate (201), which is connected across the channel steel (101) of the adjacent special-shaped column hoop (1) up and down, and the top and bottom of the clamping plate (201) are provided with vertical high-strength bolt three (203).

6. The polygonal shaped column formwork clamp for constructional engineering according to claim 5, wherein, The top and bottom of the inner side of the clamping plate (201) are provided with clamping block (202), and the clamping block (202) is connected with the clamping plate (201) by the high-strength bolt three (203).

7. The polygonal shaped column formwork clamp for constructional engineering according to claim 6, wherein, The contact surface of the clamping block (202) and the channel steel (101) is provided with sawtooth (2021).

8. The polygonal shaped column formwork clamp for constructional engineering according to claim 6, wherein, The clamping plate (201) on the adjacent special-shaped column hoop (1) up and down is arranged in staggered mode.

9. The polygonal shaped column formwork clamp for constructional engineering according to claim 1, wherein, The special-shaped column hoop (1) is arranged outside multiple vertical square wood keel (3), and multiple square wood keel (3) is spaced apart and laid on the outer surface of thick composite wood plywood (4).

10. The polygonal shaped column formwork clamp for constructional engineering according to claim 9, wherein, The thick composite wood plywood (4), the channel steel (101), the stiffener one (102), the stiffener two (103) and the thick lug plate (104) are all standard parts after factory sizing.

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