Concrete box girder web crack reinforcing device

Abstract

The utility model discloses a concrete box girder web crack reinforcing device which comprises a concrete box girder body and a threaded connecting rod, and the threaded connecting rod penetrates through the two sides of the interior of the concrete box girder body. By arranging the threaded connecting rod, in the using process, the threaded connecting rod abuts against the bottom plate to be tightly attached to the bottom of the concrete box girder body under the action of the threaded heads at the two ends, the first nut and the second nut, and meanwhile the other end of the threaded connecting rod is fixed to the top of the concrete box girder body; the web supporting frame is connected with the concrete box girder body and the bottom plate through the first fastening bolt and the second fastening bolt, namely, the reinforcing and protecting effect on the crack of the web is achieved, and more influence caused by contact between the crack of the web and the outside is avoided; and under the action of the supporting rods, the web plate can be further reinforced and supported, the using effect of the web plate is improved, and safety is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of reinforced concrete beam reinforcement, in particular to a crack reinforcement device for the web of a concrete box girder. Background Technique

[0002] In recent years, serious diagonal cracks in the webs of concrete box girder bridges in operation in China are common; diagonal cracks in the webs will lead to a reduction in the stiffness and strength of the bridge structure, so a crack reinforcement device for the webs of concrete box girders is needed to solve the above-mentioned problems;

[0003] Chinese Patent Authorization Publication No. CN 214740162 U discloses an installation device for reinforcing the web of a variable cross-section continuous box girder, including a splint, a folding plate is movably connected inside the splint, a large screw is movably connected in the middle of the splint, large nuts are threadedly connected to the top and bottom of the large screw, and a first rope bolt is fixedly installed on the right side of the splint. The utility model realizes the advantages of convenient installation and disassembly by setting a splint, a folding plate and large nuts, etc. The splint is clamped from left to right at the left end of the bottom plate, so that the circular hole and rectangular opening on the splint are aligned with the circular hole and rectangular hole at the left end of the bottom plate, and then the vertical folding plate is passed through the splint and the bottom plate from the rectangular opening, and then the upper attaching plate and the lower attaching plate are folded to fit the top and bottom of the splint, and then the large screw is passed through the circular hole, and two large nuts are respectively screwed from the bottom and top of the large screw and squeezed against the bottom and top of the splint;

[0004] The above-mentioned existing technical solutions have the following deficiencies: the technical solution can realize the function of supporting and reinforcing the web by setting support legs, but it is inconvenient to further protect and process the cracks that have appeared in the web during use, and there is a certain room for optimization. Therefore, a crack reinforcement device for the webs of concrete box girders needs to be designed to solve the above-mentioned problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a crack reinforcement device for the web of a concrete box girder to solve the problem of inconvenient protection of the cracks that have appeared in the above-mentioned background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a crack reinforcement device for the web of a concrete box girder, including a concrete box girder main body and a threaded connecting rod, and the threaded connecting rod penetrates through both sides inside the concrete box girder main body;

[0007] The bottom end of the threaded connecting rod penetrates to the outside of the concrete box girder main body. A bottom plate is connected to the bottom end of the outer side of the threaded connecting rod, and reinforcing ribs are connected between the bottom plates. Both sides of the top end of the bottom plate are connected with first hinge seats through third fastening bolts, and support rods are hinged to the top ends of the first hinge seats. The top ends of the support rods are hinged with second hinge seats, and web support frames are connected to the top ends of the second hinge seats through fourth fastening bolts.

[0008] Screw holes are formed on both sides inside the concrete box girder main body, and first fastening bolts are threadedly connected to the screw holes through the web support frames.

[0009] When using a concrete box girder web crack reinforcement device with this technical solution, by providing a web support frame, it can reinforce and protect the existing crack, reduce the external influence, and cooperate with the support rod to play a further supporting function.

[0010] Preferably, a first nut is threadedly connected to the bottom end of the outer side of the threaded connecting rod, and a second nut is threadedly connected to the top end of the outer side of the threaded connecting rod.

[0011] Preferably, the first nut is in contact with the bottom end of the bottom plate, and the second nut is in contact with the top end of the concrete box girder main body.

[0012] Preferably, the reinforcing ribs are symmetrically arranged about the central axis of the bottom plate, and the reinforcing ribs are welded to the bottom plate.

[0013] Preferably, positioning grooves are evenly formed at the bottom end of the web support frame, positioning blocks are evenly fixed to the top end of the bottom plate, and the positioning blocks are all engaged with the positioning grooves.

[0014] Preferably, the sizes of the positioning blocks are all matched with the sizes of the positioning grooves, and both the positioning blocks and the positioning grooves are provided in two groups.

[0015] Preferably, through holes are formed in both the web support frame and the bottom plate, and second fastening bolts are connected to the through holes.

[0016] Compared with the prior art, the beneficial effect of the present utility model is that the concrete box girder web crack reinforcement device realizes the function of reinforcement and protection.

[0017] By providing a threaded connecting rod, during use, it presses against the bottom plate and is closely attached to the bottom of the concrete box girder main body through the action of the threaded heads at both ends and the first nut and the second nut. At the same time, the other end is fixed to the top of the concrete box girder main body. The web support frame is connected to the concrete box girder main body and the bottom plate through the first fastening bolt and the second fastening bolt, thereby realizing the reinforcement and protection effect on the web crack, avoiding more serious influence caused by its contact with the outside. Further, the hinge seats on both sides are connected to the bottom plate and the web support frame, and under the action of the support rod, the further reinforcement and support function of the web can be realized, improving its use effect and enhancing safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a front view sectional structure schematic diagram of the present invention;

[0020] Figure 2 It is a three-dimensional structure schematic diagram of the web support frame of the present invention;

[0021] Figure 3 It is a side view structure schematic diagram of the web support frame of the present invention;

[0022] Figure 4 It is a top view structure schematic diagram of the bottom plate of the present invention;

[0023] Figure 5 It is a front view structure schematic diagram of the present invention.

[0024] Explanation of the reference numerals in the drawings: 1, concrete box girder main body; 2, screw hole; 3, first fastening bolt; 4, web support frame; 5, support rod; 6, first hinge seat; 7, bottom plate; 8, second fastening bolt; 9, threaded connecting rod; 10, reinforcing rib; 11, first nut; 12, positioning block; 13, positioning groove; 14, second hinge seat; 15, third fastening bolt; 16, fourth fastening bolt; 17, second nut; 18, through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1 - 5 , an embodiment provided by the present utility model: a reinforcement device for cracks in the web of a concrete box girder, including a concrete box girder main body 1 and a threaded connecting rod 9;

[0027] At the bottom end outside the threaded connecting rod 9, a first nut 11 is threadedly connected. At the top end outside the threaded connecting rod 9, a second nut 17 is threadedly connected. The first nut 11 is in contact with the bottom end of the bottom plate 7, and the second nut 17 is in contact with the top end of the concrete box girder main body 1;

[0028] Specifically, as Figure 1 shown, when in use, the upper and lower ends of the threaded connecting rod 9 can be installed and connected through the actions of the first nut 11 and the second nut 17;

[0029] The threaded connecting rod 9 penetrates through both sides inside the concrete box girder main body 1. The bottom end of the threaded connecting rod 9 penetrates to the outside of the concrete box girder main body 1. At the bottom end outside the threaded connecting rod 9, a bottom plate 7 is connected, and reinforcing ribs 10 are connected between the bottom plates 7;

[0030] The reinforcing ribs 10 are symmetrically arranged about the central axis of the bottom plate 7, and the reinforcing ribs 10 and the bottom plate 7 are connected by welding;

[0031] Specifically, as Figure 1 and Figure 4 shown, when in use, since the reinforcing ribs 10 and the bottom plate 7 are connected by welding, the connection effect between the reinforcing ribs 10 and the bottom plate 7 can be improved;

[0032] On both sides of the top end of the bottom plate 7, first hinge seats 6 are connected through third fastening bolts 15, and support rods 5 are hinged to the top ends of the first hinge seats 6. The top ends of the support rods 5 are hinged to second hinge seats 14, and web support frames 4 are connected to the top ends of the second hinge seats 14 through fourth fastening bolts 16;

[0033] Positioning grooves 13 are evenly formed at the bottom end of the web support frame 4. Positioning blocks 12 are evenly fixed to the top end of the bottom plate 7, and the positioning blocks 12 are all engaged with the positioning grooves 13. The sizes of the positioning blocks 12 are all matched with the sizes of the positioning grooves 13, and both the positioning blocks 12 and the positioning grooves 13 are provided in two groups;

[0034] Specifically, asFigure 1 As shown, during use, the positioning block 12 and the positioning groove 13 are set to assist in the installation and positioning of the web support frame 4;

[0035] Through holes 18 are provided inside both the web support frame 4 and the bottom plate 7, and second fastening bolts 8 are connected inside the through holes 18;

[0036] Specifically, as Figure 1 and Figure 2 shown, during use, the through holes 18 are provided to facilitate the locking connection between the web support frame 4 and the bottom plate 7;

[0037] Screw holes 2 are provided on both sides inside the concrete box girder main body 1, and first fastening bolts 3 are threadedly connected inside the screw holes 2 through the web support frame 4.

[0038] Working principle: When the present utility model is in use, the threaded connecting rod 9 presses against the bottom plate 7 and the bottom of the concrete box girder main body 1 to be closely attached through the action of the threaded heads at both ends and the first nut 11 and the second nut 17. At the same time, the other end is fixed to the top of the concrete box girder main body 1. The web support frame 4 is connected to the concrete box girder main body 1 and the bottom plate 7 through the first fastening bolt 3 and the second fastening bolt 8, that is, the reinforcement and protection effect on the web crack is realized, avoiding more serious influence caused by contact with the outside. Further, the hinge seats on both sides are connected to the bottom plate 7 and the web support frame 4, and the further reinforcement and support function of the web can be realized under the action of the support rod 5, improving its use effect and enhancing safety.

[0039] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0040] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative labor.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A concrete box girder web crack reinforcement device, comprising a concrete box girder body (1) and a threaded connecting rod (9), wherein the threaded connecting rod (9) penetrates both sides of the interior of the concrete box girder body (1); Features: The bottom end of the threaded connecting rod (9) penetrates to the outside of the concrete box girder body (1), the bottom end of the outside of the threaded connecting rod (9) is connected to a bottom plate (7), and reinforcing ribs (10) are connected between the bottom plates (7), both sides of the top of the bottom plate (7) are connected to the first hinge seat (6) through a third fastening bolt (15), and the top of the first hinge seat (6) is hinged to a support rod (5), the top of the support rod (5) is hinged to a second hinge seat (14), and the top of the second hinge seat (14) is connected to a web support frame (4) through a fourth fastening bolt (16); Screw holes (2) are provided on both sides of the interior of the concrete box beam body (1), and the interiors of the screw holes (2) are threadedly connected with first fastening bolts (3) via web support frames (4).

2. A concrete box girder web crack reinforcement device according to claim 1, characterized in that: The bottom end of the outer side of the threaded connecting rod (9) is threadedly connected to a first nut (11), and the top end of the outer side of the threaded connecting rod (9) is threadedly connected to a second nut (17).

3. A concrete box girder web crack reinforcement device according to claim 2, characterized in that: The first nut (11) fits with the bottom end of the bottom plate (7), and the second nut (17) fits with the top end of the concrete box beam body (1).

4. A concrete box girder web crack reinforcement device according to claim 1, characterized in that: The reinforcing ribs (10) are symmetrically arranged about the central axis of the bottom plate (7), and the reinforcing ribs (10) and the bottom plate (7) are connected by welding.

5. The device for reinforcing cracks in the web of a concrete box beam according to claim 1, characterized in that: The bottom end of the web support frame (4) is evenly provided with positioning grooves (13), and the top end of the bottom plate (7) is evenly fixed with positioning blocks (12), and the positioning blocks (12) are aligned with the positioning grooves (13).

6. A concrete box girder web crack reinforcement device according to claim 5, characterized in that: The size of the positioning blocks (12) matches the size of the positioning grooves (13), and the positioning blocks (12) and the positioning grooves (13) are arranged in two groups.

7. A concrete box girder web crack reinforcement device according to claim 1, characterized in that: The web support frame (4) and the bottom plate (7) are both provided with through holes (18), and the insides of the through holes (18) are both connected with second fastening bolts (8).

Images