Deviation correction device of steel box girder for bridge pushing

Abstract

The utility model provides a deviation correction device of a steel box girder for bridge pushing, which belongs to the technical field of bridge construction and comprises a horizontally arranged steel box girder, a laser emitter arranged on the left side of the upper surface of the steel box girder, a laser reflector arranged on the right side of the steel box girder, and a laser electronic induction target arranged between the laser emitter and the laser reflector. The deviation correcting device of the steel box girder for bridge pushing solves the problems that in the process of pushing the steel box girder, the steel box girder is prone to deviating in the width direction, so that the steel box girder cannot be accurately pushed in place, the steel box girder overturns, and construction difficulty and danger are increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and in particular relates to a device for correcting the deviation of a steel box girder used for bridge jacking. Background Art

[0002] Steel box girders, also known as steel plate box girders, are a common structural form for long-span bridges. They are generally used on bridges with larger spans and are so-called steel box girders because of their box-like appearance. Currently, the continuous jacking method is commonly used to construct steel box girders with large-span structures. This method requires assembling box girder segments on a jacking platform. The assembled beam segments are then jacked into place using a continuous jack system located on top of the piers. This involves using a high-thrust cylinder to push the steel box girder forward along its length. However, during this process, the steel box girder can easily deflect in the width direction, making it impossible to accurately push it into place. Excessive width deviation can even cause the girder to overturn, increasing the difficulty and risk of construction. Therefore, a device for correcting the deviation of steel box girders used in bridge jacking is needed to address this problem. Utility Model Content

[0003] To achieve the above-mentioned purpose, the utility model provides a device for correcting the displacement of a steel box girder for bridge jacking, comprising a horizontally arranged steel box girder, a laser emitter being provided on the left side of the upper surface of the steel box girder, a laser reflector being provided on the right side of the steel box girder, a laser electronic induction target being provided between the laser emitter and the laser reflector, and a through hole being provided in the center of the laser electronic induction target.

[0004] Furthermore, the laser electronic induction target is fixedly mounted on the upper surface of the steel box girder, and the laser emitter, the laser reflector, and the laser electronic induction target are all located on the same horizontal straight line.

[0005] Furthermore, a surface of the laser electronic induction target that receives laser light is provided with a scale.

[0006] The advantages of the utility model are: the utility model provides a deviation correction device for steel box girders used for bridge jacking, which solves the problem that the steel box girders are easily offset in the width direction during the jacking process, making it impossible for the steel box girders to be accurately jacked into place, causing the steel box girders to overturn, and increasing the difficulty and danger of construction.

[0007] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a top view of the structure of the utility model.

[0009] Figure 2This is the main view of the structure of the utility model.

[0010] Figure 3 It is a schematic diagram of the parts structure of the utility model.

[0011] Explanation of the accompanying symbols: 1. Steel box girder; 2. Laser emitter; 3. Laser reflector; 4. Laser electronic sensing target; 5. Through hole; 6. Scale. DETAILED DESCRIPTION

[0012] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose, the specific implementation methods, structural features and effects of the present invention are described in detail below with reference to the accompanying drawings and embodiments.

[0013] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0014] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "aligned", "overlap", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0015] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features; and in the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0016] Example 1

[0017] This embodiment provides Figures 1 to 3 The device for correcting the displacement of a steel box girder for bridge jacking shown in the figure comprises a horizontally arranged steel box girder 1, a laser emitter 2 is provided on the left side of the upper surface of the steel box girder 1, a laser reflector 3 is provided on the right side of the steel box girder 1, a laser electronic induction target 4 is provided between the laser emitter 2 and the laser reflector 3, the laser electronic induction target 4 is fixedly mounted on the upper surface of the steel box girder 1, and a through hole 5 is provided in the center of the laser electronic induction target 4.

[0018] When in use, first install the laser emitter 2 and the laser electronic induction target 4 at designated positions on the steel box girder 1, and then install the laser reflector 3 on a fixed object on the right side of the steel box girder 1. The laser emitter 2, the laser reflector 3, and the laser electronic induction target 4 are all located on the same horizontal line, and the laser emitter 2, the laser reflector 3, and the laser electronic induction target 4 are all connected via electrical signals.

[0019] Then, during the construction and pushing, the laser emitter 2, the laser electronic sensing target 4, and the laser reflector 3 are started, and the laser signal output by the laser emitter 2 is emitted to the laser reflector 3 through the through hole 5;

[0020] In the process of pushing and moving the steel box girder 1 from left to right, if the position of the steel box girder 1 is offset, the laser output to the laser electronic sensing target 4 through the laser reflector 3 will offset the target center. Then, the construction personnel can know the specific value of the offset of the pushed box girder according to the offset amount and the scale 6 provided on the side of the laser electronic sensing target 4 that receives the laser, thereby correcting the linear deviation of the steel box girder 1. In this way, the accuracy of the pushing of the steel box girder 1 during bridge construction is ensured, construction errors are reduced, secondary rework is avoided, construction efficiency and quality are improved, and construction safety is increased.

[0021] In summary, the utility model provides a device for correcting the deviation of a steel box girder 1 for bridge jacking, which solves the problem that during the process of jacking the steel box girder 1, the steel box girder 1 is easily offset in the width direction, making it impossible to accurately jack the steel box girder 1 into place, causing the steel box girder 1 to overturn, and increasing the difficulty and danger of construction.

[0022] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A device for correcting the displacement of a steel box girder for bridge jacking, characterized by: The invention comprises a horizontally arranged steel box girder (1), wherein a laser emitter (2) is provided on the left side of the upper surface of the steel box girder (1), a laser reflector (3) is provided on the right side of the steel box girder (1), a laser electronic induction target (4) is provided between the laser emitter (2) and the laser reflector (3), and a through hole (5) is provided at the center of the laser electronic induction target (4).

2. The device for correcting the displacement of a steel box girder for bridge jacking according to claim 1, characterized in that: The laser electronic induction target (4) is fixedly mounted on the upper surface of the steel box girder (1); the laser emitter (2), the laser reflector (3), and the laser electronic induction target (4) are all located on the same horizontal straight line.

3. The device for correcting the displacement of a steel box girder for bridge jacking according to claim 2, characterized in that: A laser-sensing side of the laser electronic sensing target (4) is provided with a scale (6).

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