Integral corrugated pipe positioning device for bridge engineering box girder

Abstract

The utility model belongs to the technical field of corrugated pipe pre-embedding, and particularly relates to a bridge engineering box girder integral type corrugated pipe positioning device which comprises two positioning grooves symmetrically arranged in parallel at intervals. The reinforcing meshes are arranged below the positioning grooves in parallel at intervals, and limiting lifting hooks are welded to the two sides of the tops of the reinforcing meshes; the adjusting piece is connected to the top of the limiting lifting hook, and the top of the adjusting piece is connected with the positioning groove. By arranging a plurality of components such as the positioning groove, the reinforcing mesh and the adjusting piece, the corrugated pipe can be limited and fixed in the reinforcing frame of the box girder in a smooth parabola mode according to design requirements. The whole device is easy to manufacture, convenient and fast to hoist and beneficial to improving the construction efficiency; and after the corrugated pipe is installed, welding is not needed, the corrugated pipe cannot be damaged, and deviation is not prone to occurring in the concrete pouring process. In addition, the positioning groove, the adjusting piece and other parts can be repeatedly used, and the construction cost can be reduced to a certain degree.

Description

Technical Field

[0001] The utility model belongs to the technical field of pre-embedded corrugated pipes, and in particular relates to an integral corrugated pipe positioning device for a box girder of a bridge engineering. Background Art

[0002] In bridge engineering, prestressing is the core content of bridge structure bearing. In the process of cast-in-place box girder construction of bridge engineering, corrugated pipes should be embedded when tying the web top plate reinforcement. The function of the corrugated pipe is to reserve a channel in the concrete for the insertion of prestressed steel strands. The accuracy of the vertical coordinates of the prestressed corrugated pipe is the key to the construction quality of the cast-in-place prestressed box girder, and it is also an important guarantee for the realization of the design bearing capacity of the cast-in-place prestressed box girder. It is also directly related to the structural force safety of the cast-in-place prestressed box girder. Therefore, the erection of the prestressed corrugated pipe needs to be accurately positioned during construction.

[0003] Since the steel frame of the box girder has horizontal and vertical steel bars in the bottom plate, web plate and top plate, and the spacing between the steel bars is small and the number is large, when positioning the prestressed corrugated pipe, not only is it difficult to place the positioning frame, but the measuring device is also difficult to measure under the interference of the steel frame. The prestressed corrugated pipe is set in the steel frame of the box girder in a smooth parabolic manner, and no scale deviation can appear in any part of the prestressed corrugated pipe. In this way, a large amount of manpower and material resources are required to adjust the installation of the prestressed corrugated pipe, which is not only difficult to ensure the accuracy, but also time-consuming and labor-intensive, affecting the construction progress.

[0004] In the prior art, there are disclosed devices that can position the corrugated pipe, such as CN211846865U discloses a device for hoisting the corrugated pipe, including a frame assembly and a plurality of steel meshes, the frame assembly includes two frame units arranged at intervals along the transverse direction, each of the frame units includes two first vertical bars arranged at intervals along the longitudinal direction, and two first cross bars connected between the two first vertical bars and arranged at intervals; a plurality of steel meshes are arranged between the two frame units and connected to the two frame units, the steel mesh includes a plurality of second cross bars arranged at intervals along the vertical direction, and a plurality of vertical bar units connected between the plurality of second cross bars and arranged at intervals, each of the vertical bar units includes two second vertical bars arranged at intervals, and the two second vertical bars and the adjacent two second cross bars form a rectangular frame for accommodating the corrugated pipe. The device for hoisting the corrugated pipe disclosed in the patent can accurately position the corrugated pipe, ensure the linearity of the corrugated pipe, and reduce the damage to the corrugated pipe during construction. It is undeniable that the device for lifting corrugated pipes disclosed in the patent can indeed achieve the above-mentioned technical effects, but it still has certain shortcomings. When the device is used to accurately position the corrugated pipe, the positioned corrugated pipe is linear, while the prestressed corrugated pipe is arranged in the steel frame of the box girder in a smooth parabola manner. In addition, the height of the steel mesh in the patent cannot be fine-tuned relative to the frame assembly. Therefore, the device of the patent is not convenient for positioning and setting the corrugated pipe in a smooth parabola manner.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0006] The utility model aims to provide an integral bellows positioning device for a box girder of a bridge engineering, so as to solve the problems existing in the device for hoisting the bellows in the background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An integral bellows positioning device for a box girder of a bridge engineering project, comprising:

[0009] Two positioning grooves are arranged symmetrically with parallel intervals;

[0010] A plurality of steel meshes are arranged in parallel and at intervals below the positioning groove, and the plurality of steel meshes are distributed along the length direction of the positioning groove; mesh holes corresponding to the corrugated pipe are evenly arranged on the steel meshes; limited hooks are welded on both sides of the top of the steel meshes;

[0011] An adjusting member connected to the top of the position-limiting hook, wherein the top of the adjusting member is connected to the positioning groove.

[0012] Preferably, the positioning groove is a U-shaped channel steel.

[0013] Preferably, the mesh is rectangular.

[0014] Preferably, the adjusting member comprises an adjusting rod and a positioning screw, the top of the adjusting rod passes through the bottom plate of the positioning slot and extends into the positioning slot, and the adjusting rod is provided with a plurality of adjusting holes spaced apart above and below; the positioning screw is located in the positioning slot and inserted into the adjusting hole.

[0015] Preferably, a through hole corresponding to the adjusting rod is formed on the bottom plate of the positioning groove.

[0016] Preferably, the top and bottom parts of the adjusting rod are provided with hanging holes corresponding to the limiting hooks.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model can limit and fix the corrugated pipe in the steel frame of the box beam in a smooth parabolic manner according to the design requirements by setting multiple components such as positioning grooves, steel mesh and adjusting parts. The whole device is simple to make and convenient and quick to hoist, which helps to improve construction efficiency; and after the corrugated pipe is installed, welding is not required, which will not cause damage to the corrugated pipe, and the concrete pouring process is not easy to deviate. In addition, components such as positioning grooves and adjusting parts can be reused, which can reduce construction costs to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A state diagram of positioning and installing a bellows for the device of the utility model;

[0020] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0021] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 4 for Figure 3 Enlarged view of point B in the middle.

[0023] Description of main reference numerals:

[0024] 1. Positioning slot;

[0025] 2. Steel mesh; 21. Mesh; 22. Limit hook;

[0026] 3. Adjustment piece; 31. Adjustment rod; 32. Positioning screw; 33. Adjustment hole; 34. Lifting hole;

[0027] 4. Bellows. DETAILED DESCRIPTION

[0028] The following is a clear and complete description of the technical solution of the utility model patent. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example

[0030] See attached Figure 1-4 , a bridge engineering box girder integral corrugated pipe positioning device, comprising:

[0031] Two positioning grooves 1 are arranged symmetrically and in parallel; in this embodiment, the positioning groove 1 is a U-shaped channel steel; referring to the accompanying drawings, it can be clearly seen that the openings of the two positioning grooves 1 are far away from each other;

[0032] A plurality of steel mesh sheets 2 are arranged in parallel and spaced apart below the positioning groove 1, and the plurality of steel mesh sheets 2 are distributed along the length direction of the positioning groove 1; mesh holes 21 corresponding to the corrugated pipe 4 are evenly arranged on the steel mesh sheets 2, and in this embodiment, the mesh holes 21 are rectangular; limited hooks 22 are welded on both sides of the top of the steel mesh sheets 2; in the actual construction process, the steel mesh sheets 2 are processed in batches with a predetermined size, and the limited hooks 22 are vertically welded to the tops of both sides of the steel mesh sheets 2 by clamping welding rods with welding machine welding tongs;

[0033] The adjusting member 3 is connected to the top of the position-limiting hook 22, and the top of the adjusting member 3 is connected to the positioning slot 1; specifically, the adjusting member 3 includes an adjusting rod 31 and a positioning screw 32, the top of the adjusting rod 31 passes through the bottom plate of the positioning slot 1 and extends into the positioning slot 1, and a plurality of adjusting holes 33 are provided at intervals above and below the adjusting rod 31; the positioning screw 32 is located in the positioning slot 1 and is inserted into the adjusting hole 33. It should be additionally explained here that a through hole corresponding to the adjusting rod 31 is provided on the bottom plate of the positioning slot 1 (not shown in the drawings) so that the top of the adjusting rod 31 passes through the bottom plate of the positioning slot 1; a hanging hole 34 corresponding to the position-limiting hook 22 is provided at the bottom of the adjusting rod 31 so that the adjusting rod 31 is connected to the top of the position-limiting hook 22.

[0034] When in use, the two positioning slots 1 are fixed on the web end mold and controlled to always be on the same horizontal plane. The steel mesh 2 is hung at the bottom of the positioning slot 1 by means of the limit hook 22 hooked in the hanging hole 34 at the bottom of the adjusting rod 31. According to the design requirements, the corrugated pipe 4 is passed through the mesh 21 at the corresponding position on the steel mesh 2, and the corrugated pipe 4 is limited in a smooth parabola. In the process of inserting the corrugated pipe 4, the height of the steel mesh 2 at the corresponding position can be fine-tuned to make the positioning of the corrugated pipe 4 meet the requirements. When fine-tuning, the positioning screw 32 is taken out from the adjustment hole 33, and the length of the adjusting rod 31 extending into the positioning slot 1 is adjusted. When the appropriate length is reached, the positioning screw 32 is inserted into the adjustment hole 33 at the corresponding position. It should be supplemented here that the positioning screw 32 passes through both sides of the adjusting rod 31, and the positioning screw 32 is threadedly connected with a nut after passing through the adjusting rod 31, so that the positioning screw 32 can be prevented from falling out of the adjustment hole 33 of the adjusting rod 31 during construction.

[0035] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A bridge engineering box girder integral bellows positioning device, characterized in that: include: Two positioning grooves are arranged symmetrically with parallel intervals; A plurality of steel meshes are arranged in parallel and at intervals below the positioning groove, and the plurality of steel meshes are distributed along the length direction of the positioning groove; mesh holes corresponding to the corrugated pipe are evenly arranged on the steel meshes; limited hooks are welded on both sides of the top of the steel meshes; An adjusting member connected to the top of the position-limiting hook, wherein the top of the adjusting member is connected to the positioning groove.

2. The integral bellows positioning device for box beams of bridge engineering according to claim 1 is characterized in that: The positioning groove is a U-shaped channel steel.

3. The integral bellows positioning device for box beams of bridge engineering according to claim 1 is characterized in that: The mesh is rectangular.

4. The integral bellows positioning device for box beams of bridge engineering according to claim 1, characterized in that: The adjusting member comprises an adjusting rod and a positioning screw, the top of the adjusting rod passes through the bottom plate of the positioning slot and extends into the positioning slot, and the adjusting rod is provided with a plurality of adjusting holes spaced apart from top to bottom; the positioning screw is located in the positioning slot and inserted into the adjusting hole.

5. The integral bellows positioning device for box beams of bridge engineering according to claim 4 is characterized in that: A through hole corresponding to the adjusting rod is formed on the bottom plate of the positioning groove.

6. The integral bellows positioning device for box beams of bridge engineering according to claim 4, characterized in that: The bottom of the adjusting rod is provided with a hanging hole corresponding to the position-limiting hanging hook.

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