Bridge girder end plate crack reinforcing structure

Abstract

The utility model discloses a bridge girder end plate crack reinforcing structure which comprises a plurality of baffles, a tensioning mechanism, a locking mechanism and a plug, a plurality of connecting lugs are fixedly connected to the outer walls of the two sides of each baffle, an arc-shaped groove is formed in one end of each baffle, a round end is integrally formed at the other end of each baffle, and the plug is connected with the arc-shaped groove. The outer diameter of the circular end is matched with the inner diameter of the arc-shaped groove, and connecting pieces matched with the tensioning mechanism are arranged at the positions, close to the two ends, of the bottom of the baffle. Through the arrangement of the locking mechanism, the baffle and the connecting lug can be fixed below the crack through the locking mechanism, after nail-free glue used for fixing the connecting lug is solidified, the locking mechanism is detached from the baffle so as to expose the threaded hole, then epoxy resin glue is injected into the crack from the threaded hole, and the connecting lug is fixed through the locking mechanism. After the epoxy resin glue is solidified, the tensioning mechanism used for tensioning the two baffles is detached, then the baffles can be pried down from the bottom of the bridge girder end plate, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge crack reinforcement, in particular to a crack reinforcement structure for the end plate of a bridge main girder. Background Technique

[0002] After a bridge is used for a long time, cracks will appear on some of its concrete components. For small cracks, epoxy resin glue is mostly used for repair. When repairing the cracks at the bottom of the end plate of a bridge main girder, in order to prevent the uncured epoxy resin glue from flowing out of the cracks, baffles are also needed to cover the cracks.

[0003] After retrieval, the patent with the publication number of CN220538456U discloses a crack reinforcement structure for the end plate of a road bridge main girder. It inserts a long pipe into the crack and threadedly connects a baffle to cover the crack. The baffle can be rotatably connected to several other baffles. By arranging the baffles along the crack direction, the crack can be covered to prevent the glue from falling off, reducing the consumption of plates.

[0004] In the actual use process of the above scheme, the reliability of the long pipe fixed in the crack is not good, so it is difficult to reliably fix the baffle at the bottom of the bridge. Secondly, the long pipe cannot be taken out of the crack after the epoxy resin glue is cured. Since the baffle is threadedly connected to the long pipe, and the ends of adjacent baffles are rotatably connected to each other, it is not convenient to remove the baffle from the bottom of the bridge after the epoxy resin glue is cured, and it needs to be improved. Content of the Utility Model

[0005] The purpose of the utility model is to provide a crack reinforcement structure for the end plate of a bridge main girder to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] A crack reinforcement structure for the end plate of a bridge main girder includes a plurality of baffles, a tensioning mechanism, a locking mechanism and a plug. A plurality of connecting ears are fixedly connected to the outer walls on both sides of the baffle. An arc-shaped groove is opened at one end of the baffle. A circular end is integrally formed at the other end of the baffle. The outer diameter of the circular end is adapted to the inner diameter of the arc-shaped groove. Connecting pieces adapted to the tensioning mechanism are arranged at both ends close to the bottom of the baffle. The tensioning mechanism is used to tightly pull two adjacent baffles together. A threaded hole is penetrated through the top of the baffle. The plug is adapted to the threaded hole. The locking mechanism is installed through the threaded hole. The locking mechanism is used to temporarily fix the baffle at the bottom crack of the bridge main girder end plate.

[0008] As a further solution of the utility model: The locking mechanism includes a tube body that can be installed through the threaded hole. A plurality of opening grooves are provided on the outer wall of the top end of the tube body to form a plurality of valve bodies at the top end of the tube body. A second screw rod is inserted through the bottom end of the tube body. After the top end of the second screw rod passes through the tube body, it is fixedly connected with a conical block. A second nut is sleeved on the outer wall of the second screw rod below the tube body. The outer wall of the tube body is sleeved with a fourth nut through external threads.

[0009] As a further solution of the utility model: A third nut is fixedly sleeved on the outer wall of the bottom end of the tube body. A washer is sleeved on the outer wall of the tube body above the fourth nut.

[0010] As a further solution of the utility model: The connecting piece includes a convex platform fixedly installed at the bottom of the baffle. The bottom end of the convex platform is fixedly connected with a first screw rod. A first nut is sleeved on the first screw rod. The tensioning mechanism includes a turnbuckle. Both ends of the turnbuckle are fixedly connected with connecting sleeves that can be sleeved on the first screw rod.

[0011] As a further solution of the utility model: One of the convex platforms is fixedly installed on one side of the bottom of the baffle close to the arc-shaped groove, and the other convex platform is fixedly installed at the center of the bottom of the circular end.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. Through the setting of the locking mechanism, the utility model can use the locking mechanism to fix the baffle and the connecting ear below the crack. After the nail-free glue for fixing the connecting ear is cured, the locking mechanism is removed from the baffle to expose the threaded hole. Then, epoxy resin glue is injected into the crack from the threaded hole, and the threaded hole is blocked with a screw plug. After the epoxy resin glue is cured, the tensioning mechanism for pulling the two baffles is removed, and the baffle can be pried off from the bottom of the bridge main girder end plate. The operation is simple and convenient.

[0014] 2. The utility model is provided with a tensioning mechanism composed of a turnbuckle and a connecting sleeve, and a connecting piece composed of a convex platform, a first screw rod and a first nut. The tensioning mechanism and the connecting piece can be used in cooperation to tension two adjacent baffles, so that the arc-shaped groove of one baffle tightly abuts the circular end of the other baffle, thereby preventing the epoxy resin glue from flowing out from the joint between the two baffles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of a bridge main girder end plate crack reinforcement structure.

[0016] Figure 2 It is a schematic structural diagram of the locking mechanism in a bridge main girder end plate crack reinforcement structure.

[0017] Figure 3 is Figure 1 a partially enlarged view of

[0018] Among them, the baffle 1, connecting ear 2, threaded hole 3, circular end 4, arc groove 5, boss 6, first screw 7, first nut 8, tensioning mechanism 9, turnbuckle 10, connecting sleeve 11, locking mechanism 12, pipe body 13, opening groove 14, flap body 15, second screw 16, tapered block 17, second nut 18, third nut 19, fourth nut 20, washer 21. Specific embodiments

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0020] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0021] It should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation in the specification, and therefore cannot be understood as a limitation to the present utility model.

[0022] In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0023] Please refer to Figures 1 to 3, in the embodiment of the present utility model, a reinforcing structure for cracks in the end plate of a bridge main girder includes a plurality of baffles 1, a tensioning mechanism 9, a locking mechanism 12 and a plug. Both outer walls of the baffle 1 are fixedly connected with a plurality of connecting ears 2. An arc-shaped groove 5 is formed at one end of the baffle 1, and a circular end 4 is integrally formed at the other end of the baffle 1. The outer diameter of the circular end 4 is adapted to the inner diameter of the arc-shaped groove 5. Connectors adapted to the tensioning mechanism 9 are provided at both ends near the bottom of the baffle 1. The tensioning mechanism 9 is used to tightly pull two adjacent baffles 1 together. A threaded hole 3 is formed through the top of the baffle 1, and the plug is adapted to the threaded hole 3. The locking mechanism 12 is installed through the threaded hole 3, and the locking mechanism 12 is used to temporarily fix the baffle 1 at the bottom crack of the bridge main girder end plate.

[0024] By adopting the above scheme, when reinforcing the bottom crack of the bridge main girder end plate in the present utility model:

[0025] First, the small crack is chiseled into a V-shaped groove and blown clean. Then, a blind hole for installing the locking mechanism 12 is drilled in the crack. After that, the baffle 1 with a release agent applied on its upper surface can be hung under the crack by using the locking mechanism. A small amount of nail-free glue is applied on the top surface of each connecting ear 2. Then, the baffle 1 is locked by the locking mechanism, so that the baffle 1 and the connecting ears 2 are closely attached to the bottom surface of the bridge main girder end plate. After that, the next baffle is installed. Adjacent baffles 1 can be tightly pulled by the cooperation of the tensioning mechanism 9 and the connector, so that the arc-shaped groove 5 of one baffle 1 tightly abuts against the circular end 4 of the other baffle 1, thereby preventing the epoxy resin glue from flowing out from the joint between the two baffles 1. After the nail-free glue is cured, the locking mechanism is removed from the baffle 1 to expose the threaded hole 3. Then, epoxy resin glue is injected into the crack from the threaded hole 3, and the threaded hole 3 is blocked with a plug. After the epoxy resin glue is cured, the tensioning mechanism 9 for tightly pulling the two baffles 1 is removed, and the baffle 1 can be pried off from the bottom of the bridge main girder end plate. The operation is simple and convenient.

[0026] Specifically combined with Figure 2 , in an embodiment of the present utility model, the locking mechanism 12 includes a tube body 13 that can be installed through the threaded hole 3. A plurality of opening grooves 14 are formed on the outer wall of the top end of the tube body 13 to form a plurality of petal bodies 15 at the top end of the tube body 13. A second screw 16 is installed through the bottom end of the tube body 13. The top end of the second screw 16 passes through the tube body 13 and is fixedly connected with a conical block 17. A second nut 18 is sleeved on the outer wall of the second screw 16 below the tube body 13. The outer wall of the tube body 13 is sleeved with a fourth nut 20 through external threads. A third nut 19 is fixedly sleeved on the outer wall of the bottom end of the tube body 13. A washer 21 is sleeved on the outer wall of the tube body 13 above the fourth nut 20.

[0027] After inserting each petal body 15 at the top of the pipe body 13 into the blind holes drilled in the crack, tighten the second nut 18 on the second screw 16 so that the second nut 18 abuts against the bottom end of the pipe body 13, then the conical block 17 can move downward to expand each petal body 15, making the petal body 15 tightly adhere to the inner wall of the blind hole, thus realizing the fixation of the pipe body 13. By rotating the fourth nut 20 on the pipe body 13, the hanging height of the baffle 1 on the pipe body 13 can be adjusted, and the operation is simple and convenient.

[0028] Specifically combined with Figures 1 - 3 , in an embodiment of the present invention, the connecting member includes a convex platform 6 fixedly installed at the bottom of the baffle 1. The bottom end of the convex platform 6 is fixedly connected to a first screw 7. A first nut 8 is sleeved on the first screw 7 in a matching manner. The tensioning mechanism 9 includes a turnbuckle 10. Both ends of the turnbuckle 10 are fixedly connected to connecting sleeves 11 that can be sleeved on the first screw 7. Further, one convex platform 6 is fixedly installed on one side of the bottom of the baffle 1 close to the arc-shaped groove 5, and the other convex platform 6 is fixedly installed at the center of the bottom of the circular end 4.

[0029] By adopting the above scheme, when tensioning two adjacent baffles 1, only need to sleeve the connecting sleeves 11 at both ends of the turnbuckle 10 on the first screws 7 at the adjacent ends of the two baffles 1, then install the first nut 8 on the first screw 7 to prevent the turnbuckle 10 from falling off, and then operate the turnbuckle 10 to pull the two first screws 7 closer to each other to realize the tensioning of the two adjacent baffles 1, and the operation is simple and convenient.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A reinforcement structure for cracks in the end plate of a bridge main girder, characterized in that: It includes several baffles (1), a tensioning mechanism (9), a locking mechanism (12) and a plug. Both outer walls of the baffle (1) are fixedly connected with a plurality of connecting ears (2). An arc-shaped groove (5) is formed at one end of the baffle (1). A circular end head (4) is integrally formed at the other end of the baffle (1). The outer diameter of the circular end head (4) is adapted to the inner diameter of the arc-shaped groove (5). Connectors adapted to the tensioning mechanism (9) are arranged at both ends close to the bottom of the baffle (1). The tensioning mechanism (9) is used to tightly pull two adjacent baffles (1) together. A threaded hole (3) is formed through the top of the baffle (1). The plug is adapted to the threaded hole (3). The locking mechanism (12) is installed through the threaded hole (3). The locking mechanism (12) is used to temporarily fix the baffle (1) at the bottom crack of the bridge main girder end plate.

2. The crack reinforcement structure for the end plate of the bridge main girder according to claim 1, characterized in that: The locking mechanism (12) includes a tube body (13) that can be installed through the threaded hole (3). A plurality of opening grooves (14) are formed on the outer wall of the top end of the tube body (13) to form a plurality of petal bodies (15) at the top end of the tube body (13). A second screw (16) is inserted through the bottom end of the tube body (13). A conical block (17) is fixedly connected to the top end of the second screw (16) after the second screw (16) passes through the tube body (13). A second nut (18) is sleeved on the outer wall of the second screw (16) below the tube body (13). The outer wall of the tube body (13) is sleeved with a fourth nut (20) through external threads.

3. A bridge main girder end plate crack reinforcement structure according to claim 2, characterized in that: A third nut (19) is fixedly sleeved on the outer wall of the bottom end of the tube body (13). A washer (21) is sleeved on the outer wall of the tube body (13) above the fourth nut (20).

4. A crack reinforcement structure for the end plate of a bridge main girder according to claim 1, characterized in that: The connector includes a boss (6) fixedly installed at the bottom of the baffle (1). The bottom end of the boss (6) is fixedly connected with a first screw (7). A first nut (8) is sleeved on the first screw (7). The tensioning mechanism (9) includes a turnbuckle (10). Both ends of the turnbuckle (10) are fixedly connected with connecting sleeves (11) that can be sleeved on the first screw (7).

5. A crack reinforcement structure for the end plate of a bridge main girder according to claim 4, characterized in that: One of the bosses (6) is fixedly installed on one side of the bottom of the baffle (1) close to the arc-shaped groove (5), and the other boss (6) is fixedly installed at the center of the bottom of the circular end head (4).

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