A tie rod conversion device for corner positions in concrete structures

Abstract

This invention discloses a tie rod conversion device for corner positions in concrete structures, belonging to the field of building construction technology. It includes two force-transfer components positioned at the corner of the concrete structure, arranged perpendicularly to each other. Each force-transfer component includes a hanging tie rod extending vertically along the concrete structure. Multiple sets of channel steel assemblies are fixedly mounted on the hanging tie rod along its axial direction. Each channel steel assembly includes a first channel steel and a second channel steel arranged opposite each other, fixedly connected. Both ends of the first channel steel have first through holes for the hanging tie rod to pass through. A tie rod is fixedly connected between the first and second channel steels. This invention, through a unequal-length double-channel steel corner force-transfer structure, breaks the traditional model where tie rods must be straight through, filling the technological gap in shear walls and large-section beam corners where there are no straight tie rods.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, and specifically relates to a tie rod conversion device for corner positions of concrete structures. Background Technology

[0002] Tie rods are commonly used reinforcement components in formwork systems during concrete structure construction. In traditional construction methods, tie rods pass directly through the opposing formwork panels on both sides and are locked with nuts to balance the lateral pressure generated during concrete pouring. However, at building corners (such as the inside or outside corners of shear walls, or the end corners of large-section concrete beams), the formwork panels on both sides are not parallel but at an angle (usually 90° or other angles). In this case, conventional tie rods cannot pass straight through the formwork panels and apply effective tension, leading to quality problems such as formwork bulging, grout leakage, and displacement at the corners.

[0003] Currently, common methods used in engineering include: welding angle steel or channel steel into right-angle supports, using through-wall bolts in conjunction with diagonal braces, or adding additional timber and step-by-step fasteners at the corners. However, these methods have many shortcomings: corner transition reinforcement structures are mostly integrated welded fixed structures or temporary on-site erections, resulting in high construction costs; temporary welded components have low precision and insufficient rigidity; diagonal bracing systems occupy a large space, are inconvenient to adjust, and have low disassembly and assembly efficiency.

[0004] Therefore, it is necessary to propose a tie rod conversion device for corner positions in concrete structures to solve the above problems. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a tie rod conversion device for corner positions of concrete structures, in order to solve the problems in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: This invention discloses a tie rod conversion device for corner positions of concrete structures, comprising: two conversion force-bearing components disposed at the corner of the concrete structure, the two conversion force-bearing components being arranged perpendicularly to each other; each conversion force-bearing component comprising: a hanging screw extending vertically along the concrete structure; multiple sets of channel steel assemblies fixedly disposed on the hanging screw along the axial direction of the hanging screw; each channel steel assembly comprising a first channel steel and a second channel steel disposed opposite to each other, the first channel steel and the second channel steel being fixedly connected; each end of the first channel steel being provided with a first through hole for the hanging screw to pass through; and a tie rod being fixedly connected between the first channel steel and the second channel steel.

[0007] Furthermore, a plurality of perforated gusset plates are fixedly connected between the first channel steel and the second channel steel. The perforated gusset plates are provided with a second through hole for the tie rod to pass through. The tie rod passes through the second through hole and is fixed by a nut to limit the horizontal displacement of the channel steel assembly.

[0008] Furthermore, a plurality of structural gusset plates are fixedly connected between the first channel steel and the second channel steel, and the structural gusset plates are offset from the perforated gusset plates.

[0009] Furthermore, the length of the first channel steel is greater than the length of the second channel steel, and the second channel steel is located between the two hanging screws.

[0010] Furthermore, nuts that are threadedly connected to the hanging screw are provided on both the upper and lower sides of the first channel steel. The first channel steel is fixed to the hanging screw by the nuts, and the height of the first channel steel can be adjusted by rotating the nuts.

[0011] Furthermore, three tie rods are provided, which are arranged sequentially as a first tie rod, a second tie rod, and a third tie rod along the direction close to the corner. The first tie rod passes through both templates and is fixed to the channel steel assembly with nuts. The second tie rod passes through the inner template and is fixed to the channel steel assembly with nuts. The third tie rod passes through the outer template and is fixed to the channel steel assembly with nuts.

[0012] The beneficial effects of this invention are as follows: This invention addresses the construction pain point of direct tie rods in the formwork of shear walls and large-section frame concrete beam corners during building construction. It pioneers an unequal-length double-channel steel corner transfer force transmission structure, breaking away from the traditional requirement of straight-line tie rods and filling the industry gap in shear wall and large-section beam corner construction lacking direct tie rods. In terms of force distribution, it replaces the traditional passive diagonal bracing support mode, forming a closed-loop force system that significantly improves stiffness and stability. Vertical adjustment rods are incorporated to achieve vertical height adjustment, solving the problem of difficult vertical elevation positioning of the channel steel transfer force transmission component. It is adaptable to shear wall and beam corner structures with different floor heights, beam heights, and thicknesses, offering a wide range of applications. The closed-loop tie rods prevent formwork displacement, bulging, and misalignment, reducing later repair costs. The unequal-length double-channel steel transfer force transmission component and the vertical hanging height adjustment component facilitate on-site installation and positioning, making it suitable for high-altitude and confined corner construction scenarios. Attached Figure Description

[0013] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration: Figure 1 This is a top view of the installation of the force conversion component according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the force conversion component structure according to an embodiment of the present invention.

[0014] The following are the markings in the attached diagram: 1. Hanging screw; 2. First channel steel; 201. First through hole; 3. Second channel steel; 4. Tie rod; 401. First tie rod; 402. Second tie rod; 403. Third tie rod; 5. Opening gusset plate; 501. Second through hole; 6. Structural gusset plate. Detailed Implementation

[0015] like Figures 1-2 As shown, this invention discloses a tie rod conversion device for corner positions in concrete structures, comprising two conversion force-bearing components disposed at the corner of the concrete structure, the two conversion force-bearing components being arranged perpendicularly to each other. Each conversion force-bearing component includes: a hanging tie rod 1 extending vertically along the concrete structure, the upper end of which is fixed to the upper structure; and multiple sets of channel steel assemblies fixed vertically between the two hanging tie rods 1, each channel steel assembly including a first channel steel 2 and a second channel steel 3 arranged opposite each other, the first channel steel 2 and the second channel steel 3 being fixedly connected, the length of the first channel steel 2 being greater than that of the second channel steel 3. The length of the two channel steels 3 is as follows: the first channel steel 2 has first through holes 201 at both ends for the hanging screw 1 to pass through; the first channel steel 2 is fixed to the hanging screw 1 by nuts, wherein the nuts are threaded onto the hanging screw 1 and abut against the first channel steel 2 to fix the first channel steel 2; rotating the nuts realizes the height adjustment of the unequal length double channel steel conversion force-bearing component in the vertical screw direction, solving the problem of difficult vertical elevation positioning of the unequal length double channel steel conversion force-bearing component; the second channel steel 3 is located between the two hanging screws 1, and a tie rod 4 is fixedly connected between the first channel steel 2 and the second channel steel 3. There are three tie rods 4. The three tie rods 4 are arranged in sequence as a first tie rod 401, a second tie rod 402 and a third tie rod 403 in the direction close to the corner. The first tie rod 401 passes through the templates on both sides and is fixed to the channel steel assembly with nuts. The second tie rod 402 passes through the inner template and is fixed to the channel steel assembly with nuts. The third tie rod 403 passes through the outer template and is fixed to the channel steel assembly with nuts.

[0016] In this configuration, multiple perforated gusset plates 5 are welded and fixed between the first channel steel 2 and the second channel steel 3. The perforated gusset plates 5 are provided with a second through hole 501 for the tie rod 4 to pass through. The tie rod 4 passes through the second through hole 501 and is fixed by a nut to limit the horizontal displacement of the channel steel assembly.

[0017] In this configuration, multiple structural gusset plates 6 are welded and fixed between the first channel steel 2 and the second channel steel 3. The structural gusset plates 6 are staggered with the perforated gusset plates 5 to enhance the stability of the connection between the first channel steel 2 and the second channel steel 3 and to avoid the second through hole 501.

[0018] In this design, the lateral pressure generated during concrete pouring is transmitted to the formwork back ribs through the formwork, and then to the unequal-length double-channel steel transfer force assembly through the tie rods 4. Because the opening directions of the first channel steel 2 and the second channel steel 3 are opposite, they form a stable box-shaped section with strong bending and torsional resistance. The tension of the tie rods 4 is evenly transmitted to the entire double-channel steel structure through the perforated connecting plates 5 between the channel steels, and then the force is transmitted from the entire double-channel steel structure to the upper structure or embedded parts through the vertical hanging bolts 1, thus achieving reliable reinforcement of the formwork at the corner. The entire force-bearing system is a closed-loop force system, replacing the traditional passive support mode of diagonal bracing, significantly improving the stiffness and stability of the reinforcement.

[0019] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A tie rod conversion device for use at corner positions in concrete structures, characterized in that, include: Two force-transfer components are set at the corners of the concrete structure, and the two force-transfer components are set perpendicularly to each other. Each force-transfer component includes a hanging screw extending vertically along the concrete structure. Multiple sets of channel steel assemblies are fixedly installed on the hanging screw along the axial direction of the hanging screw. Each channel steel assembly includes a first channel steel and a second channel steel arranged opposite to each other. The first channel steel and the second channel steel are fixedly connected. Both ends of the first channel steel are provided with a first through hole for the hanging screw to pass through. A tie rod is fixedly connected between the first channel steel and the second channel steel.

2. The tie rod conversion device for corner positions in concrete structures according to claim 1, characterized in that: A plurality of perforated plates are fixedly connected between the first channel steel and the second channel steel. The perforated plates are provided with a second through hole for the tie rod to pass through. The tie rod passes through the second through hole and is fixed by a nut to limit the horizontal displacement of the channel steel assembly.

3. The tie rod conversion device for corner positions in concrete structures according to claim 2, characterized in that: Multiple structural gusset plates are fixedly connected between the first channel steel and the second channel steel, and the structural gusset plates and the perforated gusset plates are staggered.

4. The tie rod conversion device for corner positions in concrete structures according to claim 1, characterized in that: The length of the first channel steel is greater than the length of the second channel steel, and the second channel steel is located between the two hanging screws.

5. The tie rod conversion device for corner positions in concrete structures according to claim 1, characterized in that: The first channel steel is provided with nuts on both the upper and lower sides that are threaded to the hanging screw. The first channel steel is fixed to the hanging screw by the nuts, and the height of the first channel steel can be adjusted by rotating the nuts.

6. The tie rod conversion device for corner positions in concrete structures according to claim 1, characterized in that: There are three tie rods, which are arranged in sequence as a first tie rod, a second tie rod, and a third tie rod along the direction close to the corner. The first tie rod passes through both templates and is fixed to the channel steel assembly with nuts. The second tie rod passes through the inner template and is fixed to the channel steel assembly with nuts. The third tie rod passes through the outer template and is fixed to the channel steel assembly with nuts.

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