A precast T-beam prestressed pipe coordinate positioning reinforcing steel fixture

Abstract

The utility model relates to prefabricated T beam construction technical field, the utility model provides a kind of prefabricated T beam prestressed pipe coordinate positioning reinforcing bar fixture, including main base and the side base being set to the both sides of main base, main base end portion is connected with the end portion of side base by connecting rod, main base and side base are respectively provided with the positioning seat for positioning reinforcing bar position, reinforcing bar is placed on main base and side base respectively, and after welding with the abutment of positioning seat four around, it is formed for the limiting hole of limiting prestressed pipe, stable frame is formed by the connecting rod connection of main base and side base, reinforcing bar is accurately positioned using positioning seat, so that reinforcing bar is formed limiting hole to fix prestressed pipe, provide reliable positioning reference for reinforcing bar, reduce positioning error, ensure that prestressed pipe coordinate is accurate, improve prefabricated T beam construction quality and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of precast T-beam construction technology, and more specifically, to a precast T-beam prestressed duct coordinate positioning steel bar clamp. Background Technology

[0002] In highway engineering construction, precast T-beams are a common beam structure widely used due to their good structural stability and high construction efficiency. As a key component of precast T-beams, the accuracy of the prestressing duct's coordinate positioning directly affects the prestressing tensioning effect, which in turn relates to the beam's load-bearing capacity and service life. Therefore, achieving precise positioning of the prestressing duct to ensure it does not shift during construction is a crucial aspect of precast T-beam construction.

[0003] Currently, in the construction of prestressed ducts for precast T-beams, the traditional positioning method relies heavily on on-site welding of positioning reinforcing bars to fix the duct's position. However, this approach has several shortcomings in practical application: Firstly, the welding of positioning reinforcing bars is often carried out after the web reinforcement is tied, and the high temperature during welding can easily burn the corrugated duct, affecting its sealing and structural integrity. Secondly, the traditional positioning method lacks unified manufacturing standards and precise positioning benchmarks, resulting in slow welding speeds, large positional deviations, and difficulty in ensuring the accuracy of the prestressed duct coordinates. Furthermore, this method also suffers from low construction efficiency and significant material waste, increasing construction costs and potentially affecting the beam's construction quality due to inaccurate positioning, failing to meet the precision and economic requirements of modern highway engineering for precast T-beam construction. Utility Model Content

[0004] The purpose of this utility model is to provide a precast T-beam prestressed pipe coordinate positioning steel bar clamp, which solves the problem of burning the corrugated pipe when welding the positioning steel bar after the web steel bar is tied in the prior art.

[0005] This utility model is achieved through the following technical solution: a precast T-beam prestressed duct coordinate positioning steel bar clamp, including a main base and side bases set on both sides of the main base. The end of the main base is connected to the end of the side base through a connecting rod. The main base and the side base are respectively provided with positioning seats for positioning the position of the steel bars. The steel bars are respectively placed on the main base and the side bases, and are welded together with the positioning seats around the perimeter to form a limiting hole for limiting the position of the prestressed duct.

[0006] Furthermore, both the main base and the side base are provided with adjustment slots along their length, and adjustment bolts are slidably connected within the adjustment slots. The positioning seat is fastened to the main base and the side base through the adjustment bolts.

[0007] Furthermore, an adjusting seat is slidably connected within the adjusting joint. The adjusting seat is connected to a limiting rod that abuts against the end of the reinforcing bar to limit the position of the reinforcing bar. The limiting rod is parallel to the connecting rod. The adjusting seat is threadedly connected to a nut that abuts against the main base and the side base to secure the relative position of the adjusting seat.

[0008] Furthermore, the positioning seat is welded to the main base and the side base respectively.

[0009] Furthermore, both the main base and the side base are composed of two angle steel pieces with openings arranged opposite each other.

[0010] Furthermore, the positioning seat consists of two angle steel pieces with openings arranged opposite each other.

[0011] Furthermore, the horizontal projections of the main base and the side bases form a T-shape.

[0012] Furthermore, the side bases are symmetrically arranged on both sides of the main base.

[0013] This utility model has at least the following advantages and beneficial effects: a stable frame is formed by connecting the main base and the side base through a connecting rod; the positioning seat is used to accurately position the reinforcing bars, so that the reinforcing bars surround and form a limiting hole to fix the prestressed duct, providing a reliable positioning benchmark for the reinforcing bars, reducing positioning errors, ensuring the accuracy of the prestressed duct coordinates, and improving the construction quality and efficiency of precast T-beams. Attached Figure Description

[0014] Figure 1 This utility model provides a structural schematic diagram of the prestressed duct coordinate positioning steel bar clamp in use.

[0015] Figure 2 This utility model provides a structural schematic diagram of a precast T-beam prestressed duct coordinate positioning steel bar clamp.

[0016] Figure 3 This is a top view of a precast T-beam prestressed duct coordinate positioning steel bar clamp provided by this utility model.

[0017] Figure 4 The bottom view of a precast T-beam prestressed duct coordinate positioning steel bar clamp provided by this utility model.

[0018] Figure 5 This utility model Figure 4 Sectional view along the AA direction.

[0019] Figure 6 This is a schematic diagram of the steel reinforcement in this utility model.

[0020] Attached reference numerals: 1-Main base, 10-Adjusting joint, 11-Adjusting bolt, 12-Adjusting seat, 2-Side base, 3-Connecting rod, 4-Positioning seat, 5-Reinforcing bar, 50-Limiting hole, 6-Limiting rod. Detailed Implementation

[0021] The specific implementation method is described below with reference to the accompanying drawings.

[0022] Example 1 like Figures 1 to 6 As shown in this embodiment, a precast T-beam prestressed duct coordinate positioning steel bar 5 clamp is disclosed, including a main base 1 and side bases 2 set on both sides of the main base 1. The end of the main base 1 is connected to the end of the side base 2 through a connecting rod 3. The main base 1 and the side base 2 are respectively provided with positioning seats 4 for positioning the position of the steel bar 5. The steel bar 5 is placed on the main base 1 and the side base 2 respectively, and is welded to the positioning seats 4 around the perimeter to form a limiting hole 50 for limiting the prestressed duct. Specifically, the steel reinforcement bracket 5 used for positioning the prestressed duct can be welded from 10mm steel reinforcement bars 5, with its lap joints fixed by spot welding. For example, if the outer diameter of the prestressed duct is 74mm, the limiting hole 50 can be set as a square hole with an inner side length of 76mm. In specific operation, the steel reinforcement bars 5 along the length direction of the main base 1 and the side base 2 can be placed on the main base 1 and the side base 2 respectively, close to the edge of the positioning seat 4. Then, the steel reinforcement bars 5 along the width direction of the main base 1 and the side base 2 can be lapped and placed on the steel reinforcement bars 5 along the length direction, close to the edge of the positioning seat 4. Finally, the lap joints are spot welded to fix them. The main base 1 and the side base 2 are connected by the connecting rod 3 to form a stable structure, ensuring that the upper surfaces of the main base 1 and the side base 2 are arranged horizontally, providing a stable foundation for the placement of the steel reinforcement bars 5. The relative position of the positioning seat 4 on the main base 1 and the side base 2 corresponds to the coordinate position of the required prestressed duct. The positioning seat 4 provides a precise positioning reference for the reinforcing bar 5. The reinforcing bar 5 is close to the positioning seat 4 on all sides, which greatly reduces the positioning error of the reinforcing bar 5, ensures the positioning accuracy of the prestressed duct during the installation process, and thus improves the overall quality of the precast T-beam.

[0023] Furthermore, in specific implementation, both the main base 1 and the side base 2 provided in this embodiment of the invention are provided with adjusting joints 10 along their length. Adjusting bolts 11 are slidably connected within the adjusting joints 10, and the positioning seat 4 is securely connected to the main base 1 and the side base 2 via the adjusting bolts 11. Specifically, the adjusting joints 10 allow the positioning seat 4 to slide along the length of the main base 1 and the side base 2, allowing construction personnel to flexibly adjust the position of the positioning seat 4 according to different prestressed pipe layout requirements. For example, when facing projects with various beam types or different design requirements, it is not necessary to remake the entire set of clamps; simply adjusting the position of the positioning seat 4 can adapt to different construction scenarios, greatly improving the versatility of the clamps, reducing the number of clamps to be manufactured, and lowering construction costs. At the same time, the tightening method of the adjusting bolts 11 is simple to operate; after adjusting the position of the positioning seat 4, it can be quickly fixed, improving construction efficiency.

[0024] Furthermore, in a specific implementation, an adjusting seat 12 is slidably connected within the adjusting joint 10 provided in this embodiment of the invention. The adjusting seat 12 is connected to a limiting rod 6 that abuts against the end of the reinforcing bar 5 to limit its position. The limiting rod 6 is parallel to the connecting rod 3. The adjusting seat 12 is threadedly connected to a nut that abuts against the main base 1 and the side base 2 to secure the relative position of the adjusting seat 12. Specifically, the limiting rod 6 further optimizes the positioning effect of the reinforcing bar 5. When placing the reinforcing bar 5, the limiting rod 6 can limit the end of the reinforcing bar 5, ensuring the accurate position of the end of the reinforcing bar 5 in the length direction and preventing the reinforcing bar 5 from becoming skewed or offset. The adjusting seat 12 can be a semi-circular clamp used to connect the limiting rod 6. The lower end of the clamp is provided with a screw rod connected to the nut. The lower edge of the clamp abuts against the upper end of the main base 1 and the side base 2 for limiting. With the nut, the adjusting seat 12 can be moved and tightened. After the position of the limiting rod 6 is adjusted, it can be quickly fixed by tightening the nut. The operation is convenient and ensures that the limiting rod 6 will not be displaced due to external force during construction. It stably limits the reinforcing bar 5 and ensures the construction quality.

[0025] Furthermore, in specific implementations, the main base 1 and side base 2 provided in this embodiment of the present invention are both composed of two angle steels with openings arranged opposite each other. Specifically, both the main base 1 and side base 2 can be composed of two 50*50*5mm angle steels, and the gap between the two angle steels is the adjustment gap 10.

[0026] Furthermore, in specific implementation, the positioning seat 4 provided in this embodiment of the present invention is composed of two angle steels with openings arranged opposite each other. Specifically, the positioning seat 4 can be composed of two 30*30*3mm angle steels, and the gap between the two angle steels is the adjustment gap 10, the length of which is determined by the outer diameter of the prestressed duct. The adjustment bolt 11 on the main base 1 is limited to the two angle steels of the main base 1 and the two angle steels of the positioning seat 4. The adjustment bolt 11 on the side base 2 is limited to the two angle steels of the side base 2 and the two angle steels of the positioning seat 4. In addition, the distance between the two angle steels is usually the diameter of the screw, and can also be appropriately adjusted within the abutment range of the hexagonal end of the bolt and the nut, and the adjusted dimensions are re-measured, which helps to improve the versatility of the positioning seat 4 for different specifications of reinforcing bars 5.

[0027] Furthermore, in specific implementations, the horizontal projections of the main base 1 and side bases 2 provided in this embodiment of the present invention are T-shaped. Specifically, the lengths of the side bases 2 at both ends are shorter than those of the main base 1 in the middle, which is suitable for prefabricated T-beam structures and saves materials.

[0028] Furthermore, in specific implementations, the side bases 2 provided in this embodiment are symmetrically arranged on both sides of the main base 1, ensuring the symmetry of the overall structure of the clamp. This symmetrical structure ensures that the clamp is subjected to uniform force when bearing the reinforcing bars 5 and the forces during the welding process, making it less prone to tilting or deformation. When the welding reinforcing bars 5 enclose and form the limiting hole 50, the symmetrical side bases 2 on both sides can apply balanced constraints to the reinforcing bars 5, ensuring accurate positioning of the reinforcing bars 5 and improving the precision and quality of the limiting hole 50 manufacturing.

[0029] Example 2 In this embodiment, the main structure is completely identical to that of Embodiment 1. The difference lies in that the positioning seat 4 is welded to both the main base 1 and the side base 2, forming a permanent connection. This welding method makes the positioning seat 4 an integral structure with the main base 1 and the side base 2, ensuring a firm and reliable connection. During long-term use, the positioning seat 4 will not loosen due to frequent loading and unloading or external impacts, guaranteeing the stability of its position and thus maintaining the accuracy of the rebar 5 positioning. This provides a solid guarantee for the production of high-precision prestressed duct limiting holes 50, which is beneficial for improving the production quality stability of precast T-beams.

Claims

1. A precast T-beam prestressed duct coordinate positioning steel bar clamp, characterized in that, It includes a main base (1) and side bases (2) disposed on both sides of the main base (1). The end of the main base (1) is connected to the end of the side base (2) through a connecting rod (3). The main base (1) and the side base (2) are respectively provided with positioning seats (4) for positioning the position of the reinforcing bars (5). The reinforcing bars (5) are respectively placed on the main base (1) and the side base (2), and are welded together with the positioning seats (4) to form a limiting hole (50) for limiting the prestressed pipe.

2. The precast T-beam prestressed duct coordinate positioning steel bar clamp according to claim 1, characterized in that, The main base (1) and the side base (2) are provided with adjustment slots (10) along the length direction. Adjustment bolts (11) are slidably connected in the adjustment slots (10). The positioning seat (4) is fastened to the main base (1) and the side base (2) through the adjustment bolts (11).

3. A precast T-beam prestressed duct coordinate positioning steel bar clamp according to claim 2, characterized in that, An adjusting seat (12) is slidably connected inside the adjusting joint (10). The adjusting seat (12) is connected to a limiting rod (6) that abuts against the end of the reinforcing bar (5) to limit the position of the reinforcing bar (5). The limiting rod (6) is parallel to the connecting rod (3). The adjusting seat (12) is threadedly connected to a nut that abuts against the main base (1) and the side base (2) to fasten the relative position of the adjusting seat (12).

4. The precast T-beam prestressed duct coordinate positioning steel bar clamp according to claim 1, characterized in that, The positioning seat (4) is welded to the main base (1) and the side base (2) respectively.

5. A precast T-beam prestressed duct coordinate positioning steel bar clamp according to claim 1, characterized in that, Both the main base (1) and the side base (2) are composed of two angle steel pieces with openings arranged opposite each other.

6. A precast T-beam prestressed duct coordinate positioning steel bar clamp according to claim 1, characterized in that, The positioning seat (4) consists of two angle steel pieces with openings arranged opposite each other.

7. A precast T-beam prestressed duct coordinate positioning steel bar clamp according to claim 1, characterized in that, The horizontal projections of the main base (1) and the side base (2) are T-shaped.

8. A precast T-beam prestressed duct coordinate positioning steel bar clamp according to claim 1, characterized in that, The side bases (2) are symmetrically arranged on both sides of the main base (1).

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