Conflict avoiding device for common steel bars in beam and prestressed pipeline

Abstract

The utility model discloses a collision avoidance device for a common steel bar in a beam and a pre-stressed pipeline, which comprises the pre-stressed pipeline, and also comprises a rectangular frame, a steel pipe sleeve, a connecting plate and a steel bar connecting piece which are arranged on the outer side of the pre-stressed pipeline, the rectangular frame is formed by connecting two U-shaped steel plates, the steel pipe sleeve is formed by connecting two half steel pipe sleeves, and the connecting plate is connected with the steel bar connecting piece. The two semi-steel pipe sleeves are connected with the two U-shaped steel plates respectively, the two semi-steel pipe sleeves are connected to the outer side of the prestressed pipeline in a sleeved mode, a novel universal avoiding structure is formed, the conflict problem between a common steel bar and the prestressed steel beam pipeline can be conveniently and efficiently solved, structural reinforcement improvement is facilitated, and the service life of the prestressed pipeline is prolonged. Construction is facilitated, the concrete pouring quality is improved, the beam body construction quality and efficiency are improved, the structure is simple, manufacturing is convenient, all components can be manufactured in a factory in advance, field installation is convenient, the device can be suitable for reinforcing steel bar interference at any conflict position, the construction flexibility is high, and adaptability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of prestressed concrete beam bridges, in particular to a conflict avoidance device for ordinary steel bars and prestressed ducts in a beam. Background Technique

[0002] In the actual project of prestressed concrete beam bridges, it is inevitable that ordinary steel bars will conflict with the ducts of prestressed steel tendons. There are two common treatment methods in the project:

[0003] 1. Ensure the position of the prestressed steel tendon and adjust the position of the ordinary steel bar;

[0004] 2. Ensure the position of the prestressed steel tendon and adjust the linear shape of the ordinary steel bar.

[0005] Method 1 is convenient for construction, but the disadvantage is that it causes uneven distribution of ordinary steel bars, which is likely to lead to uneven vibration and incomplete pouring of concrete during construction. It will weaken the bearing capacity and crack resistance at positions with large stress, which is not conducive to the structural safety and durability; Method 2 requires separately processing the linear shape of steel bars for each conflict position, with a wide variety of types, large workload, and is troublesome, time-consuming and laborious in construction.

[0006] Based on this, the inventor of the present invention proposed a novel general-purpose avoidance structure, which can conveniently and efficiently solve the conflict problem between ordinary steel bars and prestressed steel tendon ducts, is beneficial to improving the structural reinforcement, and improving the construction quality and efficiency of the beam body. Content of the Utility Model

[0007] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a conflict avoidance device for ordinary steel bars and prestressed ducts in a beam, which can conveniently and efficiently solve the conflict problem between ordinary steel bars and prestressed steel tendon ducts, is beneficial to improving the structural reinforcement, facilitating construction and improving the quality of concrete pouring, and improving the construction quality and efficiency of the beam body.

[0008] To achieve the above purpose, the present invention provides the following technical solutions:

[0009] A conflict avoidance device for ordinary steel bars and prestressed ducts in a beam includes a prestressed duct, a rectangular frame, a steel pipe sleeve, a connecting plate and a steel bar connecting piece. The rectangular frame is composed of two U-shaped steel plates connected. The steel pipe sleeve is installed inside the rectangular frame and sleeved outside the prestressed duct. The steel pipe sleeve is composed of two half-steel pipe sleeves connected. The two half-steel pipe sleeves are respectively connected to the two U-shaped steel plates. The two half-steel pipe sleeves are sleeved outside the prestressed duct. On both sides of the outer wall at the connection of the two U-shaped steel plates, a connecting plate is connected, and a group of steel bar connecting pieces are connected to each connecting plate.

[0010] Preferably, one end of the U-shaped steel plate is fixedly connected with a positioning strip, and the other end is provided with a positioning slot. The two U-shaped steel plates are connected and fixed by inserting the positioning strip into the positioning slot.

[0011] Preferably, at the top and bottom of both ends of the semi-steel pipe sleeve, connecting ear plates are fixedly connected. The corresponding connecting ear plates of the two semi-steel pipe sleeves are connected and fixed by a first set of connecting bolts.

[0012] Preferably, a limiting slot is opened on the inner wall of the U-shaped steel plate, and a limiting block that can be inserted into the limiting slot is fixedly connected to the outer wall of the semi-steel pipe sleeve. The semi-steel pipe sleeve is connected and fixed to the U-shaped steel plate at the position of the limiting block by a second set of connecting bolts.

[0013] Preferably, the semi-steel pipe sleeve and the prestressed duct are connected and fixed by fixing bolts.

[0014] Preferably, the connecting plate includes a plate body. The plate body is connected and fixed to the two U-shaped steel plates by a third set of connecting bolts. A fixing block is fixedly connected to the outer wall of the plate body. A slot is opened in the fixing block along the length direction, and the cross-section of the slot is a T-shaped structure.

[0015] Preferably, the steel bar connecting piece includes a limiting baffle that can be slidably installed in the slot. One side of the limiting baffle is fixedly connected with a bolt passing through the slot. A locking nut is threadedly connected to the bolt, and the locking nut abuts against the outer wall of the fixing block. A sleeve is also threadedly sleeved on the outside of the bolt, and a connected steel bar is threadedly connected in the sleeve.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] By setting the U-shaped steel plate, semi-steel pipe sleeve, connecting plate and steel bar connecting piece, the present utility model forms a component one by connecting a semi-steel pipe sleeve and a U-shaped steel plate, then installs and sleeves two component ones on the outside of the prestressed duct to form a component two, and then respectively connects and installs two connecting plates on the outside of the connection positions of the two U-shaped steel plates, and installs and connects the steel bar connecting piece on the connecting plate, forming a novel general-purpose avoidance structure, which can conveniently and efficiently solve the conflict problem between ordinary steel bars and prestressed steel bundle ducts, is beneficial to improving the structural reinforcement, facilitating construction and improving the quality of concrete pouring, improving the construction quality and efficiency of the beam body, has a simple structure, is convenient to manufacture, each component can be pre-fabricated in the factory in advance, is convenient for on-site installation, can be applied to the interference of steel bars at any conflict position, and has high construction flexibility and strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic three-dimensional structure diagram of the overall device for avoiding conflicts between ordinary steel bars and prestressed ducts in the beam;

[0019] Figure 2 Schematic diagram of the split structure of two U-shaped steel plates and semi-steel pipe sleeves

[0020] Figure 3 Schematic diagram of the split structure of U-shaped steel plates and semi-steel pipe sleeves

[0021] Figure 4 Schematic diagram of the connection structure between the connecting plate and the steel bar connector

[0022] Figure 5 Schematic diagram of the split structure of the steel bar connector

[0023] In the figure: 1. U-shaped steel plate; 101. Positioning strip; 102. Positioning groove; 103. Limiting groove; 2. Semi-steel pipe sleeve; 201. Connecting ear plate; 202. Limiting block; 3. Prestressed duct; 4. Connecting plate; 401. Plate body; 402. Fixed block; 403. Card slot; 5. Steel bar connector; 501. Limiting baffle; 502. Bolt; 503. Locking nut; 504. Sleeve; 505. Reinforcing bar to be connected; 6. First connecting bolt group; 7. Fixed bolt; 8. Second connecting bolt group; 9. Third connecting bolt group. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment:

[0026] Please refer to Figures 1-5, this embodiment provides a conflict avoidance device for ordinary steel bars and prestressed ducts in a beam, including a prestressed duct 3, a rectangular frame, a steel pipe sleeve, a connecting plate 4, and a steel bar connecting piece 5. The rectangular frame is composed of two U-shaped steel plates 1 connected together. The steel pipe sleeve is installed inside the rectangular frame and sleeved outside the prestressed duct 3. The steel pipe sleeve is composed of two half-steel pipe sleeves 2 connected together. The two half-steel pipe sleeves 2 are respectively connected to the two U-shaped steel plates 1. The two half-steel pipe sleeves 2 are sleeved outside the prestressed duct 3. On both sides of the outer wall at the connection of the two U-shaped steel plates 1, a connecting plate 4 is connected. A set of steel bar connecting pieces 5 is connected to each connecting plate 4. When in use, first connect a half-steel pipe sleeve 2 with a U-shaped steel plate 1 to form a component one, obtaining two component ones. Then install and sleeve the two component ones outside the prestressed duct 3 to form a component two. Then connect and install the two connecting plates 4 respectively on the outside of the connection of the two U-shaped steel plates 1, and install and connect the steel bar connecting pieces 5 on the connecting plates 4 to form a novel and universal avoidance structure, which can conveniently and efficiently solve the conflict problem between ordinary steel bars and prestressed steel strand ducts, is beneficial to improving the structural reinforcement, facilitating construction and improving the quality of concrete pouring, improving the construction quality and efficiency of the beam body. The structure is simple and easy to manufacture. Each component can be pre-fabricated in the factory in advance, and the on-site installation is convenient. It can be applied to the interference of steel bars at any conflict position, with high construction flexibility and strong adaptability.

[0027] In this embodiment, as Figure 3 shown, a limiting groove 103 is opened on the inner wall of the U-shaped steel plate 1, and a limiting block 202 that can be inserted into the limiting groove 103 is fixedly connected to the outer wall of the half-steel pipe sleeve 2. The half-steel pipe sleeve 2 is fixedly connected to the U-shaped steel plate 1 through a second connecting bolt group 8 at the position of the limiting block 202. Specifically, the limiting groove 103 is a rectangular structure, and the limiting groove 103 extends from one end of the U-shaped steel plate 1 to the middle position of the U-shaped steel plate 1. The limiting block 202 is a rectangular structure. When assembling the half-steel pipe sleeve 2 and the U-shaped steel plate 1, the limiting block 202 on the half-steel pipe sleeve 2 is inserted into the limiting groove 103 of the U-shaped steel plate 1 in alignment, so that the limiting block 202 moves to the bottom end of the limiting groove 103 to limit the installation position of the half-steel pipe sleeve 2. And through the rectangular structure design of the limiting groove 103 and the limiting block 202, the deflection between the half-steel pipe sleeve 2 and the U-shaped steel plate 1 is avoided. Then, the half-steel pipe sleeve 2 and the U-shaped steel plate 1 are firmly connected through the second connecting bolt group 8 to complete the assembly of the half-steel pipe sleeve 2 and the U-shaped steel plate 1.

[0028] In this embodiment, as Figure 2As shown, one end of the U-shaped steel plate 1 is fixedly connected with a positioning strip 101, and the other end is provided with a positioning groove 102. The two U-shaped steel plates 1 are connected and fixed by inserting the positioning strip 101 into the positioning groove 102. Specifically, the depth of the positioning groove 102 is less than the length of the end of the U-shaped steel plate 1. Similarly, the length of the positioning strip 101 is adapted to the positioning groove 102. When the two U-shaped steel plates 1 are assembled to form a rectangular frame, the positioning strip 101 of one U-shaped steel plate 1 is aligned and inserted into the positioning groove 102 of the other U-shaped steel plate 1, so that the two U-shaped steel plates 1 are preliminarily positioned and connected, improving the assembly efficiency.

[0029] In this embodiment, as Figure 2 and Figure 3 shown, at the top and bottom of both ends of the half steel pipe sleeve 2, connection lugs 201 are fixedly connected. The corresponding connection lugs 201 between the two half steel pipe sleeves 2 are connected and fixed by a first connecting bolt group 6. When the two half steel pipe sleeves 2 are assembled to form a steel pipe sleeve, after the two U-shaped steel plates 1 are assembled, the connection lugs 201 on the two half steel pipe sleeves 2 are automatically aligned. At this time, the two aligned connection lugs 201 are connected and fixed by the first connecting bolt group 6, improving the stability of the assembly connection of the two half steel pipe sleeves 2.

[0030] In this embodiment, as Figure 2 shown, the half steel pipe sleeve 2 and the prestressed duct 3 are connected and fixed by fixing bolts 7. The half steel pipe sleeve 2 and the prestressed duct 3 are connected and fixed by the fixing bolts 7, improving the connection stability between the half steel pipe sleeve 2 and the prestressed duct 3.

[0031] In this embodiment, as Figure 4 and Figure 5As shown in the figure, the connecting plate 4 includes a plate body 401. The plate body 401 is fixedly connected to the two U-shaped steel plates 1 through a third connecting bolt group 9. A fixing block 402 is fixedly connected to the outer wall of the plate body 401. A clamping groove 403 is formed in the fixing block 402 along the length direction. The cross-section of the clamping groove 403 is a T-shaped structure. The steel bar connecting piece 5 includes a limiting baffle 501 slidably installed in the clamping groove 403. A bolt 502 passing through the clamping groove 403 is fixedly connected to one side of the limiting baffle 501. A locking nut 503 is threadedly connected to the bolt 502. The locking nut 503 abuts against the outer wall of the fixing block 402. A sleeve 504 is also threadedly sleeved on the outer side of the bolt 502. A connected steel bar 505 is threadedly connected in the sleeve 504. The plate body 401 is connected and installed at the outer connection of the two U-shaped steel plates 1 through the third connecting bolt group 9. On the one hand, it strengthens the assembly of the two U-shaped steel plates 1 and improves the stability of the connection between the two U-shaped steel plates 1. On the other hand, the fixing block 402 is assembled and combined with the two U-shaped steel plates 1. Then, by installing the limiting baffle 501 and the bolt 502 into the clamping groove 403 of the fixing block 402, adjusting the limiting baffle 501 and the bolt 502 to the appropriate positions, then connecting the locking nut 503 to the bolt 502 and tightening the locking nut 503 to abut against the fixing block 402 to lock the positions of the limiting baffle 501 and the bolt 502. Then connecting the sleeve 504 to the bolt 502 and connecting the connected steel bar 505 to the sleeve 504 to realize the combination of the connected steel bar 505 and the prestressed duct 3, solve the conflict problem between the ordinary steel bar and the prestressed duct, and improve the structural reinforcement.

[0032] Working principle: During use, align the limit block 202 on the semi-steel pipe sleeve 2 and insert it into the limit groove 103 of the U-shaped steel plate 1 so that the limit block 202 moves to the bottom end of the limit groove 103 to limit the installation position of the semi-steel pipe sleeve 2. Then, use the second connecting bolt group 8 to firmly connect the semi-steel pipe sleeve 2 and the U-shaped steel plate 1 to complete the assembly of the semi-steel pipe sleeve 2 and the U-shaped steel plate 1 to form Component One. Place the two Component Ones outside the prestressed duct 3. Align the positioning strip 101 of one U-shaped steel plate 1 and snap it into the positioning slot 102 of the other U-shaped steel plate 1 to preliminarily position and connect the two U-shaped steel plates 1. After the two U-shaped steel plates 1 are assembled, the connecting ear plates 201 on the two semi-steel pipe sleeves 2 are automatically aligned. Then, use the first connecting bolt group 6 to connect and fix the two aligned connecting ear plates 201 to firmly assemble and connect the two semi-steel pipe sleeves 2 to form Component Two. Use the third connecting bolt group 9 to connect and install the plate body 401 on the outside of the connection between the two U-shaped steel plates 1. Connect the steel bar to be connected 505 and the bolt 502 to both ends of the sleeve 504 to form Component Three. Connect and install Component Three and the plate body 401. Install the limit baffle 501 and the bolt 502 into the slot 403 of the fixing block 402. Adjust the limit baffle 501 and the bolt 502 to the appropriate position, then connect the lock nut 503 to the bolt 502 and tighten the lock nut 503 against the fixing block 402 to lock the positions of the limit baffle 501 and the bolt 502. Then pour concrete to form a novel and universal avoidance structure, which can conveniently and efficiently solve the conflict problem between ordinary steel bars and prestressed steel bundle ducts, is beneficial to improving the structural reinforcement, facilitating construction and improving the quality of concrete pouring, improving the construction quality and efficiency of the beam body, has a simple structure, is easy to manufacture, and each component can be pre-fabricated in the factory in advance and is convenient for on-site installation. It can be applied to the interference of steel bars at any conflict position, with high construction flexibility and strong adaptability.

[0033] The above embodiments are the preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present invention.

Claims

1. A device for avoiding collision between ordinary steel bars and prestressed pipes in beams, characterized in that: The invention comprises a prestressed pipe (3), a rectangular frame, a steel pipe sleeve, a connecting plate (4) and a steel bar connecting piece (5), wherein the rectangular frame is composed of two U-shaped steel plates (1) connected together, the steel pipe sleeve is installed inside the rectangular frame and sleeved on the outside of the prestressed pipe (3), the steel pipe sleeve is composed of two half-steel pipe sleeves (2) connected together, the two half-steel pipe sleeves (2) are respectively connected to the two U-shaped steel plates (1), the two half-steel pipe sleeves (2) are sleeved on the outside of the prestressed pipe (3), a connecting plate (4) is connected to both sides of the outer wall of the connection between the two U-shaped steel plates (1), and each connecting plate (4) is connected to a group of steel bar connecting pieces (5).

2. The device for avoiding collision between ordinary steel bars and prestressed pipes in beams according to claim 1, characterized in that: One end of the U-shaped steel plate (1) is fixedly connected to a positioning clip (101), and the other end is provided with a positioning clip groove (102). The two U-shaped steel plates (1) are connected and fixed by the positioning clip groove (101) being inserted into the positioning clip groove (102).

3. The device for avoiding collision between ordinary steel bars and prestressed pipes in beams according to claim 1, characterized in that: Connecting ear plates (201) are fixedly connected at the top and bottom of both ends of the semi-steel pipe sleeve (2), and the connecting ear plates (201) corresponding to the two semi-steel pipe sleeves (2) are connected and fixed by a first connecting bolt group (6).

4. The device for avoiding collision between ordinary steel bars and prestressed pipes in beams according to claim 3 is characterized in that: A limiting groove (103) is provided on the inner wall of the U-shaped steel plate (1), and a limiting block (202) which can be inserted into the limiting groove (103) is fixedly connected to the outer wall of the semi-steel pipe sleeve (2). The semi-steel pipe sleeve (2) is located at the limiting block (202) and is fixedly connected to the U-shaped steel plate (1) via a second connecting bolt group (8).

5. The device for avoiding collision between ordinary steel bars and prestressed pipes in beams according to claim 4, characterized in that: The semi-steel pipe sleeve (2) and the prestressed pipe (3) are connected and fixed by fixing bolts (7).

6. The device for avoiding collision between ordinary steel bars and prestressed pipes in beams according to claim 1, characterized in that: The connecting plate (4) comprises a plate body (401), wherein the plate body (401) is connected and fixed to the two U-shaped steel plates (1) via a third connecting bolt group (9), a fixing block (402) is fixedly connected to the outer wall of the plate body (401), a slot (403) is provided in the fixing block (402) along the length direction, and the cross section of the slot (403) is a T-shaped structure.

7. The device for avoiding collision between ordinary steel bars and prestressed pipes in beams according to claim 6, characterized in that: The steel bar connector (5) comprises a limit baffle (501) slidably mounted in the slot (403); a bolt (502) passing through the slot (403) is fixedly connected to one side of the limit baffle (501); a locking nut (503) is threadedly connected to the bolt (502); the locking nut (503) is tightly pressed against the outer wall of the fixing block (402); a sleeve (504) is threadedly sleeved on the outer side of the bolt (502); and the sleeve (504) is threadedly connected to the connected steel bar (505).

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