A device for preventing segregation of concrete during the pouring of pile heads for bridge subgrade in highway engineering.

Abstract

This utility model relates to an anti-segregation device for concrete pouring of foundation beam pile heads in highway engineering. The device comprises reinforcing bars I and II, inclined steel plates, and retaining steel plates I, II, and III. The inclined steel plates form a 45-degree angle with the horizontal plane, and their lower edges are arc-shaped discharge ports. The side of the inclined steel plate opposite the arc-shaped discharge port is connected to the bottom of retaining steel plate III along its width direction. The inclined steel plates are connected to the bottoms of retaining steel plates I and II along their length direction. One end of retaining steel plate III is connected to retaining steel plate I, and the other end is connected to retaining steel plate II. The edges of the arc-shaped discharge port are welded to reinforcing bars I and II one-to-one, and these reinforcing bars I and II are connected to the lower edges of the inclined steel plates at a 135-degree angle. This utility model has a simple composition, is easy to install, saves time and labor, and can prevent concrete segregation during foundation beam pile head pouring, ensuring the quality of foundation beam concrete pouring.

Description

Technical Field

[0001] This utility model relates to the field of highway engineering bridge construction technology, and in particular to a device for preventing segregation of concrete during the pouring of pile heads for bridge ground beams in highway engineering. Background Technology

[0002] To improve the overall stability of bridges, enhance their seismic performance, and improve the stress on pile foundations, ground tie beams are typically installed for column-type bridge piers in seismic intensity zones of 8 degrees and with pier heights greater than 7 meters. Ground tie beams are generally strip-shaped connecting members that connect two piles of the same pier number, strengthening the lateral connection of the pile foundations and enabling the two piles to form a unified load-bearing structure.

[0003] After the reinforcement binding and formwork installation of the tie beam are completed, most construction methods use a truck crane with a hopper for pouring. The tie beam portion of the concrete can be poured normally. However, when pouring concrete at the pile head reinforcement cage location, due to the influence of the pier reinforcement cage, concrete near the tie beam can flow laterally into the pile head. This unidirectional concrete pouring can lead to concrete segregation, causing quality issues. If a tremie pipe is used to pour from the center of the pier reinforcement cage, the height of the cage often necessitates the construction of safety ladders and platforms, resulting in time-consuming, labor-intensive, costly, and potentially dangerous work. Furthermore, uneven concrete pouring and segregation are prone to occur, leading to additional costs and severely impacting construction quality and schedule. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a time-saving and labor-saving anti-segregation device for concrete pouring of bridge ground beam pile heads in highway engineering, which prevents concrete segregation.

[0005] To solve the above problems, the present invention provides a device for preventing segregation in concrete pouring for bridge foundation beams in highway engineering. The device is characterized by comprising: reinforcing bar I, reinforcing bar II, inclined wall steel plate, retaining steel plate I, retaining steel plate II, and retaining steel plate III; the inclined wall steel plate forms a 45-degree angle with the horizontal plane, and its lower edge is an arc-shaped discharge port; the side of the inclined wall steel plate opposite to the arc-shaped discharge port is connected to the bottom of the retaining steel plate III along its width direction; the inclined wall steel plate is connected to the bottom of the retaining steel plate I and the retaining steel plate II along its length direction; one end of the retaining steel plate III is connected to the retaining steel plate I, and the other end is connected to the retaining steel plate II; the edge tangent of the arc-shaped discharge port is welded to the reinforcing bar I and the reinforcing bar II in a one-to-one correspondence, and the reinforcing bar I and the reinforcing bar II are respectively connected to the lower edge of the inclined wall steel plate at a 135-degree angle.

[0006] Both steel bar I and steel bar II have a diameter of 20mm and a length of 30cm.

[0007] The radius of the arc-shaped discharge port is 50cm.

[0008] The thickness of the inclined wall steel plate, the enclosure steel plate I, the enclosure steel plate II, and the enclosure steel plate III is 0.5 cm.

[0009] The projected width of the inclined steel plate is 60cm and the projected length is 70cm.

[0010] The height of both the steel plate I and the steel plate II of the enclosure is 10cm.

[0011] The height of the steel plate III of the enclosure is 14.14 cm.

[0012] The overall height of the device is 114.14 cm.

[0013] This utility model has the following advantages compared with the prior art:

[0014] 1. This utility model adopts a method of welding thin-thickness load-bearing steel plates with steel bars to produce a finished ground beam pile head concrete pouring device, which replaces the traditional chute, duct and other methods for pouring ground beam pile head concrete. Not only are the materials used common and readily available, but it can also be mass-produced and has the characteristics of convenient turnover and safety and reliability.

[0015] 2. This utility model has a simple composition, is easy to install, saves time and effort, and is easy to organize and store after use, making it suitable for various construction environments.

[0016] 3. This utility model allows for manual movement of the device at the position of the ground beam pile head formwork, enabling multi-directional concrete pouring, preventing and reducing concrete segregation during ground beam pile head pouring, and ensuring the quality of ground beam concrete pouring. Attached Figure Description

[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the structural dimensions of this utility model.

[0020] Figure 3 This is a diagram showing the usage state of this utility model.

[0021] In the diagram: 1—Reinforcing bar I; 2—Reinforcing bar II; 3—Inclined wall steel plate; 4—Enclosure steel plate I; 5—Enclosure steel plate II; 6—Enclosure steel plate III. Detailed Implementation

[0022] like Figures 1-2As shown, a device for preventing segregation of concrete in the pile head of a bridge foundation beam in highway engineering is provided. The device consists of steel bar I1, steel bar II2, inclined wall steel plate 3, retaining steel plate I4, retaining steel plate II5, and retaining steel plate III6.

[0023] To ensure that the concrete slides from the steel plate into the formwork, the inclined wall steel plate 3 forms a 45-degree angle with the horizontal plane, and its lower edge is an arc-shaped discharge port; the side of the inclined wall steel plate 3 opposite to the arc-shaped discharge port is connected to the bottom of the retaining steel plate Ⅲ6 along the width direction; the upper edge of the inclined wall steel plate 3 is connected to the bottom of the retaining steel plate Ⅰ4 and retaining steel plate Ⅱ5 respectively along the length direction; one end of the retaining steel plate Ⅲ6 is connected to the retaining steel plate Ⅰ4, and the other end is connected to the retaining steel plate Ⅱ5; the edge tangent of the arc-shaped discharge port is welded to the reinforcing bars Ⅰ1 and Ⅱ2 one by one, and the reinforcing bars Ⅰ1 and Ⅱ2 are connected to the lower edge of the inclined wall steel plate 3 at a 135-degree angle to ensure that the reinforcing bars Ⅰ1 and Ⅱ2 are vertically inserted and fixed to the formwork.

[0024] Among them, the diameter of steel bar I1 and steel bar II2 is 20mm and the length is 30cm.

[0025] The radius of the arc-shaped discharge port is 50cm.

[0026] The thickness of inclined wall steel plate 3, enclosure steel plate I 4, enclosure steel plate II 5, and enclosure steel plate III 6 is 0.5cm.

[0027] The projected width of the inclined steel plate 3 is 60cm and the projected length is 70cm.

[0028] The height of both steel plate I4 and steel plate II5 of the enclosure is 10cm.

[0029] The height of the steel plate Ⅲ6 for the enclosure is 14.14cm.

[0030] The overall height of the device described in this utility model is 114.14 cm.

[0031] The manufacturing method of this utility model:

[0032] (1) Place the inclined wall steel plate 3 flat on the ground, and use electric welding to vertically weld the enclosure steel plate I 4 and enclosure steel plate II 5 onto the inclined wall steel plate 3;

[0033] (2) Place another piece of enclosure steel plate Ⅲ6 on the inclined wall steel plate 3, and weld it to the inclined wall steel plate 3 at a 45-degree angle with the edge in the width direction;

[0034] (3) Cut a 50cm diameter arc-shaped material outlet at the edge of the inclined wall steel plate 3 relative to the enclosure steel plate Ⅲ6 to facilitate concrete pouring.

[0035] (4) After completing step (3), flip the main body over and weld 20mm diameter steel bars I1 and II2 at the cut point of the arc-shaped feed port, forming an angle of 135 degrees with the inclined wall steel plate 3.

[0036] In use, according to the actual pouring requirements, insert the reinforcing bars I1 and II2 of this utility model into the formwork at the pile head of the ground beam, and then pour concrete along the inclined steel plate 3. Figure 3 As shown. During use, by moving the position, concrete segregation within the area of ​​the cast steel reinforcement cage is reduced.

Claims

1. A device for preventing segregation of concrete during the pouring of pile heads for bridge subgrade beams in highway engineering, characterized in that: The device consists of steel bar I (1), steel bar II (2), inclined wall steel plate (3), enclosure steel plate I (4), enclosure steel plate II (5), and enclosure steel plate III (6); the inclined wall steel plate (3) forms a 45-degree angle with the horizontal plane and the lower edge is an arc-shaped discharge port; the side of the inclined wall steel plate (3) opposite to the arc-shaped discharge port is connected to the bottom of the enclosure steel plate III (6) along the width direction; the inclined wall steel plate (3) is connected to the bottom of the enclosure steel plate I (4) and the enclosure steel plate II (5) along the length direction; one end of the enclosure steel plate III (6) is connected to the enclosure steel plate I (4) and the other end is connected to the enclosure steel plate II (5); the edge tangent of the arc-shaped discharge port is welded to the steel bar I (1) and the steel bar II (2) one by one, and the steel bar I (1) and the steel bar II (2) are connected to the lower edge of the inclined wall steel plate (3) at a 135-degree angle.

2. A device for preventing segregation of concrete for pouring of pile head of ground beam of highway engineering bridge according to claim 1, characterized in that: The diameter of the steel bar I (1) and the steel bar II (2) are both 20 mm and the length is 30 cm.

3. The device for preventing segregation of concrete for pouring of pile head of ground beam of highway engineering bridge of claim 1, characterized in that: The radius of the arc-shaped discharge port is 50cm.

4. The device for preventing segregation of concrete for pouring of pile head of ground beam of highway engineering bridge of claim 1, characterized in that: The thickness of the inclined wall steel plate (3), the enclosure steel plate I (4), the enclosure steel plate II (5), and the enclosure steel plate III (6) is 0.5cm.

5. A device for preventing segregation of concrete in the pouring of a pile head of a ground tie beam of a highway engineering bridge according to claim 4, characterized in that: The projected width of the inclined steel plate (3) is 60cm and the projected length is 70cm.

6. The anti-segregation device for concrete pouring of bridge foundation beam pile heads in highway engineering as described in claim 4, characterized in that: The height of both the steel plate I (4) and the steel plate II (5) of the enclosure is 10cm.

7. The anti-segregation device for concrete pouring at the pile head of a bridge subgrade beam in highway engineering as described in claim 4, characterized in that: The height of the steel plate Ⅲ (6) of the enclosure is 14.14 cm.

8. The anti-segregation device for concrete pouring of bridge foundation beam pile heads in highway engineering as described in claim 1, characterized in that: The overall height of the device is 114.14 cm.

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