Reinforcing device for highway bridge maintenance

Abstract

The utility model provides a reinforcing device for highway bridge maintenance, which comprises a reinforcement cage sleeved on the periphery of a pile. The positioning structures are clamped to the top end and the bottom end of the reinforcement cage, the positioning structures at the upper end and the lower end are fixed to the bottom face of a bridge and the top face of a pile base through expansion bolts correspondingly, each positioning structure comprises a semicircular positioning steel plate, and the positioning steel plates are connected with the positioning structures through bolts. The radian of the inner sides of the positioning steel plates corresponds to the radian of the side wall of the pile, the two positioning steel plates are combined to form a circular ring, and the inner diameter of the circular ring corresponds to the diameter of the pile. The reinforcing device for highway bridge maintenance has the advantages that the stability of a bridge pile foundation can be enhanced conveniently, and normal use and safety of a bridge are guaranteed.

Description

A reinforcement device for highway bridge maintenance Technical Field

[0001] This utility model relates to the field of building reinforcement technology, and in particular to a reinforcement device for highway bridge maintenance. Background Technology

[0002] Highway bridges are traffic facilities built specifically for highway vehicles. Highway bridges are mostly made of reinforced concrete. The bridge foundation is the lowest part of the bridge structure that is in direct contact with the ground and is an important part of the bridge substructure. The bridge foundation includes piles partially embedded in the ground and foundations poured on or under the ground. The piles are used to support the bridge structure itself and the loads of passing vehicles.

[0003] When pile foundations are subjected to various loads, they will generate stress and deformation over time, leading to insufficient stability of the bridge pile foundations and a certain probability of causing safety accidents such as bridge collapse. In order to ensure the normal use and safety of bridges, existing bridge reinforcement devices are usually connected to the bridge base and installed vertically upwards on the bridge piles, which only applies a protective layer to the outside of the bridge piles and does not achieve a high reinforcement and support effect.

[0004] Therefore, it is necessary to provide a new reinforcement device for highway bridge maintenance to solve the above-mentioned technical problems. Summary of the Invention

[0005] The technical problem solved by this utility model is to provide a reinforcement device for highway bridge maintenance that facilitates strengthening the stability of bridge pile foundations and ensures the normal use and safety of bridges.

[0006] To solve the above-mentioned technical problems, the present invention provides a reinforcement device for highway bridge maintenance, comprising: a reinforcing cage, which is fitted around the periphery of the pile; and a positioning structure, which is engaged with the top and bottom ends of the reinforcing cage. The positioning structures at the top and bottom ends are respectively fixed to the bottom surface of the bridge and the top surface of the pile seat by expansion bolts. The positioning structure includes a positioning steel plate, which is semi-circular in shape, and the inner curvature of the positioning steel plate corresponds to the curvature of the side wall of the pile. The two positioning steel plates are combined to form a ring, and the inner diameter of the ring corresponds to the diameter of the pile.

[0007] Preferably, the positioning structure further includes through holes and insertion holes, the through holes being equidistantly disposed on the side wall of the positioning steel plate, and the insertion holes being equidistantly disposed on the surface of the positioning steel plate.

[0008] Preferably, the perforation extends through both the upper and lower end faces of the positioning steel plate, and the expansion bolts fix the positioning steel plate to the bottom surface of the bridge and the surface of the pile seat respectively by passing through the perforation.

[0009] Preferably, the depth of the insertion hole is only half the thickness of the positioning steel plate, and the upper and lower ends of the vertical reinforcing bars of the reinforcing cage are respectively engaged inside the insertion hole.

[0010] Preferably, the insertion holes and the through holes are distributed in an alternating pattern, and the inner diameter of the insertion holes is smaller than the inner diameter of the through holes.

[0011] Preferably, the reinforcing cage and the pile do not come into contact.

[0012] Compared with related technologies, the reinforcement device for highway bridge maintenance provided by this utility model has the following beneficial effects:

[0013] This utility model provides a reinforcement device for highway bridge maintenance. Firstly, based on the insertion holes provided on the positioning structure, the vertical reinforcing bars are connected to the positioning structure through the distributed insertion holes before binding. The positioning structure restricts the position of the reinforcing bars, dividing them into two arc-shaped states. Then, these two positioning structures, together with the reinforcing bars, abut against the side wall of the pile column, merging to form a ring around the side wall of the pile column. Next, expansion bolts are used to fix the positioning structures at the upper and lower ends of the reinforcing bars to the bridge and the pile seat, fixing the position of the reinforcing bars. Then, the reinforcing bars are bound to form the reinforcing cage. A ring-shaped template is then erected around the positioning structure and the reinforcing cage, with a grouting port pre-reserved at the top of the template. By injecting concrete into the template, after solidification, the reinforcing cage and the positioning structure are integrated with the pile seat, the bridge, and the pile column, respectively, thereby strengthening the stability of the pile column supporting the bridge. Attached Figure Description

[0014] Figure 1 is a structural schematic diagram of a preferred embodiment of the reinforcement device for highway bridge maintenance provided by this utility model;

[0015] Figure 2 is a schematic diagram of the structure for fixing the steel cage shown in Figure 1;

[0016] Figure 3 is a top view of the positioning structure shown in Figure 2;

[0017] Figure 4 is a schematic diagram of the cross-section of the positioning structure shown in Figure 2.

[0018] The following are the labels in the diagram: 1. Reinforcing cage, 2. Positioning structure, 21. Positioning steel plate, 22. Perforation, 23. Insertion hole, 3. Bridge, 4. Pile base, 5. Pile column, 6. Expansion bolt. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Please refer to Figures 1 to 4, where Figure 1 is a structural schematic diagram of a preferred embodiment of the reinforcement device for highway bridge maintenance provided by this utility model; Figure 2 is a structural schematic diagram of the fixing of the reinforcing cage shown in Figure 1; Figure 3 is a top view of the positioning structure shown in Figure 2; Figure 4 is a cross-sectional view of the positioning structure shown in Figure 2; the reinforcement device for highway bridge maintenance includes: a reinforcing cage 1, which is fitted around the periphery of the pile column 5; a positioning structure 2, which is engaged with the top and bottom ends of the reinforcing cage 1, and the positioning structures 2 at the upper and lower ends are respectively fixed to the bottom surface of the bridge 3 and the top surface of the pile seat 4 by expansion bolts 6; the positioning structure 2 includes a positioning steel plate 21, which is semi-circular in shape, and the inner arc of the positioning steel plate 21 corresponds to the arc of the side wall of the pile column 5, and the two positioning steel plates 21 are combined to form a ring, and the inner diameter of the ring corresponds to the diameter of the pile column 5.

[0021] In the specific implementation process, as shown in Figures 1, 2 and 4, the positioning structure 2 also includes through holes 22 and insertion holes 23. The through holes 22 are equidistantly arranged on the side wall of the positioning steel plate 21, and the insertion holes 23 are equidistantly arranged on the surface of the positioning steel plate 21. The through holes 22 penetrate the upper and lower end faces of the positioning steel plate 21, and the expansion bolts 6 fix the positioning steel plate 21 to the bottom surface of the bridge 3 and the surface of the pile base 4 respectively by passing through the through holes 22. This facilitates fixing the position of the positioning steel plate 21 by passing through the through holes 22 with the expansion bolts 6.

[0022] In the specific implementation process, as shown in Figures 1, 3, and 4, the depth of the insertion hole 23 is only half the thickness of the positioning steel plate 21, and the upper and lower ends of the vertical reinforcing bars of the reinforcing cage 1 are respectively engaged inside the insertion hole 23; the insertion hole 23 and the through hole 22 are distributed in an alternating manner, and the inner diameter of the insertion hole 23 is smaller than the inner diameter of the through hole 22; the reinforcing cage 1 does not contact the pile column 5; it is easy to distinguish the positions of the insertion hole 23 and the through hole 22, so that the reinforcing cage 1 can be positioned on the periphery of the pile column 5 by engaging the insertion hole 23.

[0023] The working principle of the highway bridge maintenance and reinforcement device provided by this utility model is as follows:

[0024] In use, the reinforcing bars for binding the steel cage 1 are first cut so that their length is less than the length of the pile column 5. The cut reinforcing bars are then inserted into the positioning steel plates 21 through the insertion holes 23, making the reinforcing bars arc-shaped. The two sets of positioned reinforcing bars are then placed against the side wall of the pile column 5 through the positioning steel plates 21, with the top ends of the reinforcing bars abutting the bottom surface of the bridge 3 through the positioning steel plates 21. The two sets of positioning steel plates 21 are then joined together to form a circular clamp on the side wall of the pile column 5, with the bottom ends of the reinforcing bars abutting the top surface of the pile base 4 through the positioning steel plates 21. Finally, the expansion bolts 6 are used to secure the reinforcing bars. The perforation 22 is penetrated and embedded into the interior of the bottom surface of the bridge 3 and the top of the pile seat 4, respectively, so that the position of the positioning steel plate 21 is fixed, thereby fixing the position of the reinforcing bar. Then, the reinforcing bar is tied to the side wall of the reinforcing bar with a ring-shaped reinforcing bar to form a reinforcing bar cage 1. Then, a ring-shaped template is erected on the side wall of the positioning steel plate 21, and both the positioning steel plate 21 and the reinforcing bar cage 1 are framed inside the template. A grouting port is reserved at the top of the template. By injecting concrete into the template, after the concrete solidifies, the reinforcing bar cage 1 and the positioning steel plate 21 are fused together with the pile 5, thereby effectively strengthening the support and stability of the pile 5.

[0025] Compared with related technologies, the reinforcement device for highway bridge maintenance provided by this utility model has the following beneficial effects:

[0026] This utility model provides a reinforcement device for highway bridge maintenance. Firstly, based on the insertion holes 23 provided on the positioning structure 2, the vertical reinforcing bars of the steel cage 1 are engaged with the positioning structure 2 before binding, allowing the positioning structure 2 to restrict the position of the reinforcing bars, dividing them into two arc-shaped states. Then, these two positioning structures 2, together with the reinforcing bars, abut against the side wall of the pile column 5, causing the two sets of positioning structures 2 to merge into a ring-shaped clamp on the side wall of the pile column 5. Then, through the expansion... Bolts 6 are used to fix the positioning structures 2 at the upper and lower ends of the reinforcing bars to the bridge 3 and the pile base 4, respectively, so that the position of the reinforcing bars is fixed by the positioning structures 2. Then the reinforcing bars are tied to form the reinforcing cage 1. Then a ring-shaped template is erected around the positioning structure 2 and the reinforcing cage 1, and a grouting port is reserved at the top of the template. By injecting concrete into the template, after solidification, the reinforcing cage 1 and the positioning structure 2 can be fused together with the pile base 4, the bridge 3 and the pile column 5, respectively, thereby strengthening the stability of the pile column 5 supporting the bridge 3.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A reinforcement device for highway bridge maintenance, characterized in that, Includes: a reinforcing cage (1), which is fitted around the periphery of the pile column (5); a positioning structure (2), which is engaged with the top and bottom of the reinforcing cage (1), and the positioning structures (2) at the top and bottom ends are respectively fixed to the bottom surface of the bridge (3) and the top surface of the pile seat (4) by expansion bolts (6). The positioning structure (2) includes a positioning steel plate (21), which is semi-circular in shape, and the inner arc of the positioning steel plate (21) corresponds to the arc of the side wall of the pile column (5). The two positioning steel plates (21) are combined to form a ring, and the inner diameter of the ring corresponds to the diameter of the pile column (5).

2. The reinforcement device for highway bridge maintenance according to claim 1, characterized in that, The positioning structure (2) also includes through holes (22) and insertion holes (23). The through holes (22) are equidistantly located on the side wall of the positioning steel plate (21), and the insertion holes (23) are equidistantly located on the surface of the positioning steel plate (21).

3. The reinforcement device for highway bridge maintenance according to claim 2, characterized in that, The perforation (22) penetrates the upper and lower end faces of the positioning steel plate (21), and the expansion bolt (6) fixes the positioning steel plate (21) to the bottom surface of the bridge (3) and the surface of the pile seat (4) respectively by penetrating the perforation (22).

4. The reinforcement device for highway bridge maintenance according to claim 2, characterized in that, The depth of the insertion hole (23) is only half the thickness of the positioning steel plate (21), and the upper and lower ends of the vertical steel bars of the steel cage (1) are respectively engaged inside the insertion hole (23).

5. The reinforcement device for highway bridge maintenance according to claim 2, characterized in that, The insertion hole (23) and the through hole (22) are arranged in an alternating pattern, and the inner diameter of the insertion hole (23) is smaller than the inner diameter of the through hole (22).

6. The reinforcement device for highway bridge maintenance according to claim 1, characterized in that, The steel cage (1) and the pile (5) are not in contact.

Images