Square pier steel bar positioning device

Abstract

The utility model discloses a square pier steel bar positioning device, which belongs to the technical field of highway construction and comprises a positioning frame, the positioning frame is a square closed frame body enclosed by four frame pieces, and concave arc-shaped clamping grooves distributed at equal intervals are formed in the inner side of each frame piece. Corner fixing pieces are arranged on the outer sides of at least one pair of opposite frame pieces of the positioning frame, and corner inserting pieces capable of being tightly inserted into the corresponding frame pieces are arranged at the corners of every two adjacent frame pieces of the positioning frame. The square pier steel bar positioning device can solve the problem that the spacing of the square pier steel bars and the thickness of a protective layer do not reach the standard at present.

Description

Technical Field

[0001] This utility model belongs to the field of highway construction technology and provides a rebar positioning device for square piers. Background Technology

[0002] Bridge piers are the main supporting structures of bridges. They are mainly composed of a foundation cap, pier body, pier reinforcement, and beam cap. Among these, the spacing of the pier reinforcement and the thickness of the protective layer are key control points and also difficult points. If they are not controlled properly, they will have an adverse impact on the construction quality of the bridge piers and face the risk of rework.

[0003] In existing technologies, the positioning reinforcement bars of the pier are generally installed manually. However, the installation and positioning of the reinforcement bars are not only unevenly distributed and poorly fixed, but they often tilt and deviate, resulting in a low construction qualification rate of the pier protective layer. In addition, it is necessary to additionally mark the position of the reinforcement bars before construction. This construction method increases the construction period and cost, and also affects the load-bearing structure of the bridge, resulting in a shortened life of the bridge. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a rebar positioning device for square piers, which aims to accurately position the rebar spacing, control the thickness of the concrete protective layer, and avoid the problem of rework caused by secondary rebar correction during later construction, thus affecting the construction progress.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model provides a rebar positioning device for a square pier, including a positioning frame. The positioning frame is a square closed frame body enclosed by four side frame members. Each side frame member has concave arc-shaped slots distributed at equal intervals on its inner side. At least one pair of opposite side frame members of the positioning frame are provided with corner fixing members on their outer sides. The positioning frame has corner inserts at the corners of adjacent side frame members that can be tightly inserted into the respective side frame members. Using the above scheme, firstly, the positioning frame is placed at the designated position of the pier rebar or concrete, ensuring that the frame is level and meets the design requirements. Then, the positioning frame is fixed using the corner fixing members to ensure that it does not shift during construction. Next, according to the design of the slots, the pier rebar is placed into the slots in the positioning frame to ensure accurate rebar positioning. After installation, an inspection is carried out to ensure that the position of each rebar and the thickness of the protective layer meet the design requirements, and fine adjustments are made if necessary.

[0007] Optionally, at least one pair of opposing frame members of the positioning frame are provided with handles on their outer sides. With handles, construction workers can easily lift and move the positioning frame, reducing inconvenience during handling. That is, during installation, construction workers can use the handles to apply force, making it easier to place the positioning frame in place and ensuring its stability.

[0008] Optionally, the positioning frame has corner connectors at the corners of adjacent frame members. The corner connectors can effectively connect adjacent frame members together, enhance the overall rigidity of the frame, and prevent the frame from deforming or tilting during construction.

[0009] Optionally, the inner surface of the corner insert is provided with serrations to enhance friction with the inner wall of the frame piece. This helps to strengthen the connection and ensure a secure connection between two adjacent frame pieces.

[0010] Optionally, the positioning frame has parallel bevels cut into the corresponding end faces of two adjacent frame members, forming a predetermined angle relative to the thickness direction of the frame members. The predetermined angle is between 40° and 50°. This facilitates splicing during the formation of a closed square frame structure.

[0011] Optionally, the frame of the positioning frame is made of rectangular tubing to facilitate use with corner inserts.

[0012] The beneficial effects of this utility model are: the square pier rebar positioning device of this utility model can accurately position the rebar through the positioning frame and its slot, and can quickly determine the thickness of the concrete protective layer according to the width of the frame of the positioning frame; thus avoiding the problem of rework caused by secondary rebar correction during later construction, which affects the construction progress.

[0013] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0015] Figure 1 This is a three-dimensional structural diagram of the square pier rebar positioning device of this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the square pier rebar positioning device of this utility model from another direction;

[0017] Figure 3 This is a three-dimensional structural diagram of the corner insert in the square pier rebar positioning device of this utility model;

[0018] Reference numerals: 1-positioning frame, 2-slot, 3-handle, 4-corner fastener, 5-corner connecting piece, 6-corner insert, 61-serration. Detailed Implementation

[0019] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0020] like Figure 1-3 As shown, this utility model discloses a rebar positioning device for a square pier, comprising a positioning frame 1, made of aluminum alloy or steel, which can be fixed to the foundation and has good stability. The positioning frame 1 is a square closed frame body enclosed by four side members to ensure the stability and symmetry of the frame. Each side member has concave arc-shaped slots 2 evenly spaced on its inner side, facilitating precise positioning of the pier rebar. The concave arc design effectively fixes the rebar and prevents movement during concrete pouring. At least one pair of opposing side members of the positioning frame 1 have corner fixing members 4 on their outer sides to fix the positioning frame 1 to the foundation rebar or concrete, ensuring that the positioning frame 1 does not shift during construction and improving construction accuracy. The positioning frame 1 has corner inserts 6 at the corners of adjacent side members that can be tightly inserted into their respective side members. The corner inserts make the frame more stable at the corners, enhancing the overall structural strength of the frame and facilitating quick operation by construction personnel.

[0021] In the above structure, the device first determines the initial position of the pier column through measurement and layout. Then, one frame of the positioning frame 1 of the device is fixed to the concrete or reinforcing steel of the foundation using corner fasteners 4. Next, the other three frame components are assembled using corner inserts 6. The planar position of the pier column is then checked again. After meeting the requirements, the remaining frame components are fixed with corner fasteners 4. Finally, the reinforcing steel of the square pier column can be tied according to the slots 2. This square pier reinforcing steel positioning device has a simple structure, can be fabricated independently, is easy to operate, and is reusable, effectively solving the problem of low pass rates for square pier reinforcing steel spacing and protective layer thickness.

[0022] In this embodiment, handles 3 are provided on the outer sides of at least one pair of opposing frame members of the positioning frame 1 to facilitate the installation and carrying of the frame members of the positioning frame 1. The handle design allows construction workers to quickly and efficiently complete the installation and adjustment of the positioning frame, improving overall construction efficiency.

[0023] In another embodiment, the positioning frame 1 has corner connecting pieces 5 at the corners of adjacent side frame members, which serve to connect and stabilize the side frame members of the positioning frame 1. The corner connecting pieces 5 can be made of high-strength metal materials (such as steel or aluminum alloy) to improve the overall stability and load-bearing capacity of the frame. In use, before construction, each side frame member is assembled with the corner connecting pieces to ensure a firm connection, forming a stable positioning frame. The assembled positioning frame is then placed on the support platform and fixed using corner fasteners to ensure that the positioning frame does not move during construction. Finally, according to the design of the slots, the reinforcing bars are placed into the positioning frame to ensure accurate and stable positioning.

[0024] In another embodiment, the inner surface of the corner plug 6 is provided with serrations 61. The serrations are designed to enhance the friction between the corner plug and the inner wall of the frame component during the insertion process, making the connection between two adjacent frame components stable, reliable, quick, and convenient.

[0025] In this embodiment, the positioning frame 1 has parallel, beveled edges on the corresponding end faces of two adjacent frame members, forming a predetermined angle relative to the thickness direction of the frame members. The predetermined angle is between 40° and 50°. This makes the frame members of the positioning frame 1 easy to assemble.

[0026] In this embodiment, the frame of the positioning frame 1 is made of a rectangular tube to facilitate its use in conjunction with the corner plug 6.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A rebar positioning device for square piers, characterized in that, The positioning frame (1) is a square closed frame body formed by four side frame pieces. Each side frame piece has concave arc-shaped slots (2) that are evenly spaced on its inner side. At least one pair of opposite side frame pieces of the positioning frame (1) are provided with corner fixing pieces (4) on their outer sides. The positioning frame (1) is provided with corner inserts (6) at the corners of two adjacent side frame pieces that can be tightly inserted into the respective side frame pieces.

2. The square pier rebar positioning device according to claim 1, characterized in that, At least one pair of opposite frame members of the positioning frame (1) are provided with handles (3) on their outer sides.

3. The square pier rebar positioning device according to claim 1, characterized in that, The positioning frame (1) has corner connecting pieces (5) at the corners of two adjacent frame pieces.

4. The square pier reinforcement positioning device according to any one of claims 1-3, characterized in that, The inner side of the corner insert (6) is provided with serrations (61) to enhance the friction with the inner wall of the frame piece.

5. The square pier rebar positioning device according to claim 4, characterized in that, The positioning frame (1) has two adjacent frame pieces with corresponding end faces cut into a splicing bevel that is parallel to each other and forms a predetermined angle relative to the thickness direction of the frame piece. The predetermined angle is 40° to 50°.

6. The square pier reinforcement positioning device according to claim 5, characterized in that, The frame of the positioning frame (1) is made of rectangular tubing.

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