Temporary positioning device for steel structure anchor bolt

Abstract

The utility model relates to the technical field of building construction, concretely relates to a steel structure anchor bolt temporary positioning device. Include: support structure, positioning structure is connected on support structure, the positioning structure has a plurality of orientation pad layer's positioning hole, anchor bolt passes through positioning hole and is connected with pad layer, nut is screwed on anchor bolt, and with the upper surface of positioning hole abuts. The application is through the effect of support structure and nut and supports anchor bolt, prevents the sinking of anchor bolt in the process of concrete pouring. Anchor bolt is connected with pad layer, and the anchor bolt can be prevented from floating up during pouring. Anchor bolt passes through positioning hole, and the anchor bolt can be positioned through the positioning hole, and the anchor bolt is guaranteed to be located in the design position.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a temporary positioning device for steel structure anchor bolts. Background Technology

[0002] In steel structure construction, the pre-embedding and positioning of anchor bolts is a crucial step. Traditional anchor bolt positioning methods typically involve connecting the anchor bolts to the main reinforcement bars of the foundation, which carries the risk of damaging the reinforcement and creating potential foundation quality issues. Utility Model Content

[0003] In view of this, the present invention provides a temporary positioning device for anchor bolts of steel structures to solve the problem of damage to the reinforcing steel.

[0004] This utility model provides a temporary positioning device for anchor bolts of steel structures, including:

[0005] Support structure;

[0006] A positioning structure is connected to a support structure. The positioning structure has several positioning holes facing the padding layer. Anchor bolts pass through the positioning holes and are connected to the padding layer.

[0007] The nut is screwed onto the anchor bolt and abuts against the upper surface of the positioning hole.

[0008] This application uses a supporting structure and nuts to support the anchor bolts, preventing them from sinking during concrete pouring. The anchor bolts are connected to the bedding layer to prevent them from floating during pouring. The anchor bolts pass through the positioning holes, allowing them to be positioned and ensuring they are in their designed locations.

[0009] In one optional embodiment, the support structure includes a channel steel and a pad fixedly disposed at the top of the channel steel;

[0010] The channel steel and the base plate are in two sets, located on the periphery of the foundation;

[0011] There are steel bars connecting the two base plates.

[0012] In this application, the channel steel and pad in the support structure are placed on the periphery of the foundation to prevent interference with the main reinforcement of the foundation. The two sets of channel steel and pad are connected by steel bars to form a support frame to support the positioning structure.

[0013] In one optional implementation, the positioning structure includes:

[0014] A positioning plate is fixedly connected to the reinforcing bar, and the positioning hole is located on the positioning plate. The positioning plate can prevent the anchor bolts from becoming misaligned during the pouring process.

[0015] In one optional embodiment, the two ends of the reinforcing bar are respectively connected to the upper surfaces of two pads. This connection of the two pads provides support for the reinforcing bar, increasing the anchor bolts' resistance to settling.

[0016] In one alternative embodiment, the reinforcing bars are multiple and arranged in parallel. This makes the positioning plate more stable and enhances the connection strength between the two base plates.

[0017] In one alternative embodiment, the positioning plate is located between the two pads. This allows for a more concentrated distribution of force on the two pads.

[0018] In one alternative embodiment, the anchor bolts are connected to the foundation layer via reinforcing bars, with the top of the reinforcing bars connected to the anchor bolts. The reinforcing bars prevent the anchor bolts from floating during pouring.

[0019] In one optional embodiment, the stirrups overlap with the main foundation reinforcement. This prevents the anchor bolts from floating during pouring, provided the supporting structure provides structural support.

[0020] In one alternative embodiment, the anchor bar is connected to the padding layer. The padding layer can limit the upward movement of the anchor bolts. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the elevation structure of an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the planar structure of an embodiment of the present utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Positioning hole; 2. Anchor bolt; 3. Channel steel; 4. Pad; 5. Reinforcing bar; 6. Positioning plate; 7. Stirrup; 8. Nut. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] In steel structure construction, the pre-embedding and positioning of anchor bolts is a crucial step. Traditional anchor bolt positioning methods often employ single-layer steel plate with welding, welded steel mesh, or single-layer bamboo plywood. However, these methods have revealed several shortcomings in practical applications. For example, while the single-layer steel plate with welding method has a relatively simple structure, it is inefficient to manufacture and difficult to operate; the welded steel mesh method offers high positioning accuracy, but it is complex, has a long construction period, and is costly; and the single-layer bamboo plywood method suffers from problems such as bolts not being properly secured and the potential for quality defects.

[0028] Furthermore, in traditional anchor bolt positioning processes, the lack of effective temporary positioning devices often necessitates multiple measurements and adjustments before concrete pouring to ensure accurate anchor bolt placement. This process is not only time-consuming and labor-intensive but also increases construction difficulty and cost. To address these issues, the industry urgently needs a temporary anchor bolt positioning device that is simple in structure, easy to operate, accurate in positioning, and low in cost. This device can effectively fix and position anchor bolts before concrete pouring, ensuring their stable position during the concrete pouring process, thereby improving construction efficiency and quality while reducing construction costs.

[0029] In summary, this utility model aims to provide a novel temporary positioning device for steel structure anchor bolts to address the many shortcomings of traditional positioning methods and meet the demands of modern steel structure construction for high precision, high efficiency, and low cost.

[0030] The following is combined with Figures 1 to 2 The following describes embodiments of the present invention.

[0031] According to an embodiment of the present invention, a temporary positioning device for steel structure anchor bolts is provided, comprising:

[0032] Support structure;

[0033] The positioning structure is connected to the supporting structure, as shown in the attached figure. Figure 2 As shown, the positioning structure has a plurality of positioning holes 1 facing the pad layer, and the anchor bolts 2 pass through the positioning holes 1 and are connected to the pad layer; the pad layer is the base pad layer.

[0034] Nut 8 is screwed onto the anchor bolt 2 and abuts against the upper surface of the positioning hole 1. The nut 8 can be an integral part of the anchor bolt 2. This allows the nut 8 to abut against the upper surface of the positioning plate 6. There are several positioning holes 1, each capable of housing multiple anchor bolts 2.

[0035] This application uses a supporting structure and nut 8 to support the anchor bolt 2, preventing it from sinking during concrete pouring. The anchor bolt 2 is connected to the bedding layer, preventing it from floating during pouring. The anchor bolt 2 passes through the positioning hole 1, allowing it to be positioned and ensuring it is in its designed location.

[0036] Specifically, the support structure can be an adjustable spiral support frame, consisting of a spiral adjusting rod and a base plate. The base plate is welded to the bottom of the spiral adjusting rod, and the top is connected to a liftable support platform via a threaded connection. Two sets of spiral support frames are symmetrically arranged around the foundation, and the height can be finely adjusted by rotating the adjusting rod. Transverse connecting rods are welded between the support platforms to form an integral frame. It can adapt to different foundation heights, eliminating the need for on-site cutting of channel steel 3, reducing material waste; it has high adjustment accuracy, can quickly respond to foundation settlement deviations, and improves construction flexibility. The positioning structure can be a magnetic quick-locking positioning module, consisting of a positioning plate 6 with permanent magnets and an electromagnetic locking device. The surface of the positioning plate 6 is embedded with a permanent magnet array, which is attracted and fixed to the steel pad 4; the electromagnetic locking device is integrated around the positioning hole 1, and generates a magnetic field to lock the anchor bolts 2 after being energized. The positioning plate 6 is connected to the reinforcing bar 5 by a snap-fit, eliminating the need for welding. Magnetic fixation eliminates the need for welding or binding, avoiding damage to the base material; electromagnetic locking can quickly release the bolts, facilitating adjustment and disassembly, and significantly improving positioning efficiency.

[0037] In one optional embodiment, the support structure includes a channel steel 3 and a pad 4 fixedly disposed at the top of the channel steel 3; the pad 4 may be a steel pad 4.

[0038] The channel steel 3 and the pad 4 are in two sets and are located on the periphery of the foundation; the channel steel 3 can be pre-embedded on the periphery of the foundation.

[0039] A reinforcing bar 5 connects the two base plates 4. The channel steel 3 and the base plate 4, and the base plate 4 and the reinforcing bar 5, can all be connected by welding.

[0040] In this application, the channel steel 3 and the pad plate 4 in the support structure are set on the periphery of the foundation to prevent interference with the main reinforcement of the foundation. The steel bars 5 between the two sets of channel steel 3 and pad plate 4 can be connected to form a support frame to support the positioning structure.

[0041] As a rigid support component, the channel steel 3 can effectively disperse the load transmitted by the anchor bolts 2 to the perimeter of the foundation, avoiding local stress concentration; the two sets of symmetrically arranged channel steel 3 and pads 4 form a stable symmetrical structure to resist lateral forces and vibrations during construction, preventing the device from tilting or deforming. The dimensions of the channel steel 3 and pads 4 can be flexibly adjusted according to the drawings without complex processing, reducing customization costs; the steel bars 5 are connected laterally to form an overall frame, which facilitates quick installation and disassembly, shortening the construction period.

[0042] In one optional implementation, the positioning structure includes:

[0043] A positioning plate 6 is fixedly connected to the reinforcing bar 5, and the positioning hole 1 is located on the positioning plate 6. The positioning plate 6 can prevent the anchor bolts 2 from becoming misaligned during the pouring process. The positioning plate 6 and the reinforcing bar 5 can be connected by welding, and the positioning plate 6 can be located below the reinforcing bar 5.

[0044] The positioning plate 6 can be frame-shaped, and the positioning hole 1 is formed on the frame wall of the positioning plate 6, such as... Figure 2 The aforementioned method can reduce the weight of the positioning plate 6 while ensuring support for the anchor bolts 2.

[0045] Positioning plate 6 has pre-drilled holes with a diameter that precisely matches the anchor bolts 2, ensuring that the bolts' verticality and horizontal position meet design requirements and reducing the need for secondary adjustments after concrete pouring. The reinforcing bars 5 are welded to positioning plate 6 to form a rigid plane, preventing displacement deviations caused by external forces. Positioning plate 6 is installed independently of the main foundation reinforcement, eliminating the need for welding or binding to it, thus preventing damage to the reinforcement during construction and ensuring the durability and safety of the foundation structure.

[0046] In one optional embodiment, the two ends of the reinforcing bar 5 are respectively connected to the upper surfaces of two pads 4. This allows the two pads 4 to be connected while simultaneously supporting the reinforcing bar 5, increasing the anchor bolts 2's resistance to settling.

[0047] In one alternative embodiment, there are multiple reinforcing bars 5 arranged in parallel. In this application, there may be two reinforcing bars 5. This makes the positioning plate 6 more stable and enhances the connection strength between the two pads 4.

[0048] The double reinforcing bars 5 form a stable double-beam structure, significantly improving the support rigidity of the positioning plate 6 and preventing deformation of the positioning plate 6 due to concrete pouring impact or equipment vibration. Their parallel arrangement also evenly distributes the load, preventing single reinforcing bars 5 from breaking due to overload. The length of the reinforcing bars 5 can be flexibly adjusted according to the foundation dimensions, making it suitable for irregular or large-span foundation construction. The spacing between the double reinforcing bars 5 is adjustable, facilitating matching with positioning plates 6 of different specifications and enhancing the versatility of the device. The reinforcing bars 5 are welded to the base plate 4, ensuring a strong connection and simple operation, reducing on-site assembly time. The parallel arrangement of the reinforcing bars 5 can serve as a temporary operating platform, assisting workers in adjusting bolt positions and improving work efficiency.

[0049] In one alternative embodiment, the positioning plate 6 is located between the two pads 4. This allows for a more concentrated distribution of force on the two pads 4.

[0050] In one alternative implementation, as shown in the appendix Figure 1 As shown, the anchor bolt 2 is connected to the foundation layer via a reinforcing bar 7, with the top end of the reinforcing bar 7 connected to the anchor bolt 2. The reinforcing bar 7 prevents the anchor bolt 2 from floating during pouring. The reinforcing bar 7 and the anchor bolt 2 are connected by binding.

[0051] In one optional embodiment, the stirrup 7 overlaps with the main foundation reinforcement. This prevents the anchor bolts 2 from floating during pouring, provided the supporting structure provides support. The stirrup 7 is connected to the main foundation reinforcement by binding, or by snapping the stirrup 7 onto the main foundation reinforcement.

[0052] By connecting the stirrup 7 to the main reinforcement of the foundation, an integrated stress network can be formed, enhancing the synergy between the anchor bolt 2 and the foundation structure. This is suitable for projects with high precision or high load requirements; at the same time, it reduces the number of independent anchors, saving material costs. It is suitable for temporary or lightweight foundation construction. The stirrup 7 is directly inserted into the pad layer and then fixed by grouting. The construction speed is fast and does not depend on the position of the main reinforcement, offering high flexibility. When disassembling, only the connection part needs to be cut off, with minimal impact on the foundation structure, which is in line with the design intent of temporary positioning devices.

[0053] In one alternative embodiment, the stirrup 7 is connected to the padding layer. The padding layer can restrict the upward movement of the anchor bolts 2.

[0054] This application provides a positioning device for anchor bolts 2 in steel structure construction. It utilizes a combination of channel steel 3 and reinforcing bars 5 to form a supporting structure around the foundation. The positioning plate 6 and anchor bolts 2 within the short columns of the foundation are fixed by welding. This addresses common problems mentioned in the background art, such as potential quality issues and low work efficiency.

[0055] The bottom of the stirrup 7 is fixed to the foundation layer, and the top is tied to the anchor bolt 2, forming an anchoring system of "bolt → stirrup 7 → foundation layer". This effectively resists the buoyancy of the anchor bolt 2 during concrete pouring, ensuring elevation stability. The stirrup 7 is inserted into the shallow area of ​​the foundation layer, eliminating the need for deep burial or large-area welding, reducing the risk of damage to the foundation layer structure. The tying connection method facilitates disassembly, reducing later repair costs. The positioning plate 6 is centrally located between the two base plates 4, forming symmetrical support with the double reinforcing bars 5, so that the load of the anchor bolt 2 is evenly distributed to the channel steel 3 on both sides, avoiding device offset caused by uneven force on one side.

[0056] In this application, the pad 4 and the channel steel 3 are welded to form an external support, and the reinforcing bar 5 and the positioning plate 6 are welded to form a planar support, which is then connected to the external channel steel 3. Through the force transmission path of anchor bolt 2 → positioning plate 6 → reinforcing bar 5 → channel steel 3, the weight of the anchor bolt 2 is ultimately transmitted to the foundation ground by the positioning device.

[0057] This application features a simple structure, readily available materials, and facilitates on-site fabrication and mass production. Furthermore, it eliminates the need for lap splicing with the foundation's main reinforcement, avoiding damage to the reinforcing steel and reducing potential foundation quality issues. When adjusting bolt positioning, this positioning device allows for overall adjustment from the outside of the foundation, improving construction efficiency and quality while shortening the construction period. Finally, this device is highly versatile and can be widely used for temporary positioning of anchor bolts in steel structure engineering.

[0058] The channel steel 3 of this application is fabricated on-site according to the drawing requirements and is welded to the steel base plate 4 as an external load-bearing component. Anchor bolts 2 pass through positioning holes 1, and nuts 8 are placed on top of positioning plate 6 and tightened to ensure the anchor bolts 2 do not sink. Stirrups 7 can be fabricated on-site, and the anchor bolts 2 are placed on top of the stirrups 7 and tied together. The length of the reinforcing bar 5 is determined according to the foundation dimensions and welded to the upper edge of positioning plate 6. The reinforcing bar 5 is placed on the steel base plate 4 and fixed by spot welding to form an integral load-bearing structure.

[0059] The temporary fixing device operation process consists of the following steps:

[0060] Step 1: Based on the foundation height in the drawings, determine the appropriate dimensions of the channel steel 3 and the steel base plate 4, and weld them together.

[0061] Step 2: Based on the foundation dimensions in the drawings, determine the length of the reinforcing bar 5 to be used. Place the reinforcing bar 5 on the upper edge of the positioning plate 6 and weld the two together to fix them in place.

[0062] Step 3: After the stirrup 7 is made according to the dimensions in the drawing, place it on the pad under the anchor bolt 2;

[0063] Step 4: Insert the anchor bolts 2 into the pre-drilled holes in the positioning plate 6 in sequence, and tie the bottom to the stirrup 7. Place the nut 8 on the upper side of the positioning plate 6 to prevent the anchor bolts 2 from shifting and sinking (floating).

[0064] Step 5: Adjust the position of the positioning plate 6 and bolts, and after confirming that there are no errors, spot weld the reinforcing bar 5 to the external pad 4;

[0065] Step 6: After the concrete is poured, remove the temporary fixing device and tighten nut 8 back to the design elevation.

[0066] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A temporary positioning device for anchor bolts of steel structures, characterized in that, include: Support structure; A positioning structure is connected to a support structure. The positioning structure has a plurality of positioning holes (1) facing the pad layer. Anchor bolts (2) pass through the positioning holes (1) and are connected to the pad layer. Nut (8) is screwed onto the anchor bolt (2) and abuts against the upper surface of the positioning hole (1).

2. The temporary positioning device for steel structure anchor bolts according to claim 1, characterized in that, The support structure includes a channel steel (3) and a pad (4) fixedly installed at the top of the channel steel (3); The channel steel (3) and the pad (4) are two sets located on the periphery of the foundation.

3. The temporary positioning device for steel structure anchor bolts according to claim 2, characterized in that, The positioning structure includes: The reinforcing bars (5) are connected to the two base plates (4) respectively; The positioning plate (6) is fixedly connected to the reinforcing bar (5), and the positioning hole (1) is located on the positioning plate (6).

4. The temporary positioning device for steel structure anchor bolts according to claim 3, characterized in that, The two ends of the steel bar (5) are respectively connected to the upper surfaces of the two pads (4).

5. The temporary positioning device for steel structure anchor bolts according to claim 3, characterized in that, The steel bars (5) are multiple and arranged in parallel.

6. The temporary positioning device for steel structure anchor bolts according to claim 3, characterized in that, The positioning plate (6) is located between the two pads (4).

7. The temporary positioning device for steel structure anchor bolts according to claim 1, characterized in that, The anchor bolt (2) is connected to the pad layer through the stirrup (7), and the top of the stirrup (7) is connected to the anchor bolt (2).

8. The temporary positioning device for steel structure anchor bolts according to claim 7, characterized in that, The stirrup (7) is lapped with the main reinforcement of the foundation.

9. The temporary positioning device for steel structure anchor bolts according to claim 7, characterized in that, The reinforcing bar (7) is connected to the padding layer.

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