Box girder web steel bar adjusting device capable of being automatically adjusted
By using a hydraulic control system to drive the oil cylinder to push the steel mesh in the box girder web reinforcement adjustment device, the problem of accuracy in handling the curvature of the box girder web reinforcement was solved, thus improving the construction quality.
Patent Information
- Application Number
- CN202423194617.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-24
AI Technical Summary
In bridge construction, the curvature of the reinforcement bars in the web of the box girder is difficult to pre-process accurately and is prone to errors during on-site binding, which affects the construction quality.
Design a box girder web reinforcement adjustment device including an operating platform, a fixing device, and a pushing device. Utilize a hydraulic control system to drive the oil cylinder to push the reinforcement mesh, causing it to deform and produce the required curvature.
It enables precise adjustment of the curvature of the web reinforcement of the box girder, meets various design requirements, reduces construction errors, and improves construction quality.
Smart Images
Figure CN223766719U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge construction technology, and in particular to an automatically adjustable box girder web reinforcement adjustment device. Background Technology
[0002] In bridge construction, some bridge designs have specific requirements for the curvature of the box girder web, rather than a conventional flat surface. This necessitates curvature treatment of the reinforcing bars in the box girder web to meet design requirements. However, it is difficult to accurately determine the appropriate curvature for the reinforcing bars during prefabrication, and even after curvature, on-site construction errors may occur during binding, affecting construction and proving difficult to correct. Therefore, a device is needed to facilitate the curvature adjustment of the bound reinforcing cage to address these issues. Utility Model Content
[0003] The purpose of this invention is to provide an automatically adjustable box girder web reinforcement adjustment device to solve the problem of curvature processing of box girder web reinforcement mentioned in the background art.
[0004] The present invention adopts the following technical solution:
[0005] This utility model discloses an automatically adjustable box girder web reinforcement adjustment device, including an operating platform. Several fixing devices are arranged on the operating platform from top to bottom. One end of each fixing device is fixedly connected to the operating platform, and the other end is fixedly connected to the web reinforcement mesh. Multiple driveable and retractable pushing devices are arranged on the side of the operating platform facing the web reinforcement mesh. One end of each pushing device is fixedly connected to the operating platform, and the other end of each pushing device engages with the web reinforcement mesh in a pushing-pushing cooperation.
[0006] Furthermore, at least three fixing devices are provided, and the fixing devices are connecting rods.
[0007] Furthermore, the pushing device includes a telescopic drive component and a control system for controlling the movement of the telescopic drive component, wherein the telescopic drive component and the control system are connected by a pipeline.
[0008] Furthermore, the telescopic drive component is a hydraulic cylinder, and the control system is a hydraulic control system.
[0009] Furthermore, the web reinforcement mesh includes a reinforcement mesh frame, and several upright bars arranged in rows and columns are provided between the opposite sides of the reinforcement mesh frame. The upright bars in each row are fixedly connected into a whole by longitudinal bars, and the movable end of the jacking device cooperates with the longitudinal bars to push.
[0010] Compared with the prior art, the beneficial technical effects of this utility model are as follows:
[0011] This invention designs a fixing device and a pushing device at different heights on the operating platform. When it is necessary to process the reinforcing bars in the web of the box girder with curvature, the pushing device is used to push the reinforcing bars in the corresponding direction to deform them and produce curvature, which can meet the design requirements of various curvatures. Attached Figure Description
[0012] The present invention will be further described below with reference to the accompanying drawings.
[0013] Figure 1 This is a front view of the automatically adjustable box girder web reinforcement adjustment device of this utility model.
[0014] Figure 2 This is a schematic diagram of the web reinforcement mesh structure in the automatically adjustable box girder web reinforcement adjustment device of this utility model;
[0015] Figure 3 This is a schematic diagram illustrating the working process of the automatically adjustable box girder web reinforcement adjustment device of this utility model.
[0016] Explanation of reference numerals in the attached drawings: 1. Operating platform; 2. Fixing device; 2-1. First connecting rod; 2-2. Second connecting rod; 2-3. Third connecting rod; 3. Pushing device; 3-1. Telescopic drive component; 3-2. Pipeline; 3-3. Control system; 4. Web reinforcement mesh; 4-1. Reinforcement mesh frame; 4-2. Stirrup; 4-3. Longitudinal reinforcement. Detailed Implementation
[0017] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0018] like Figure 1 As shown in the figure, this embodiment discloses an automatically adjustable box girder web reinforcement adjustment device, including an operating platform 1. Several fixing devices 2 are arranged on the operating platform 1 from top to bottom. One end of each fixing device 2 is fixedly connected to the operating platform 1, and the other end is fixedly connected to the web reinforcement mesh 4. At least three fixing devices 2 are provided. During operation, the fixing devices 2 are fixedly connected to the web reinforcement mesh 4 for fixed support.
[0019] On the side of the operating platform 1 facing the web reinforcement mesh 4, there are multiple push devices 3 that can be driven to extend and retract. The push devices 3 are evenly distributed on the upper and lower sides of each fixed device 2. One end of the push device 3 is fixedly connected to the operating platform 1, and the other end of the push device 3 cooperates with the web reinforcement mesh 4 to push.
[0020] The pushing device 3 includes a telescopic drive component 3-1 and a control system 3-3 for controlling the movement of the telescopic drive component 3-1. The telescopic drive component 3-1 is connected to the control system 3-3 through a pipeline 3-2. The control system 3-3 is set on the operating table 1.
[0021] In this embodiment, the telescopic drive component 3-1 is a hydraulic cylinder, the control system 3-3 is a hydraulic control system, and the pipeline 3-2 is a hydraulic oil pipeline. The movable end of the telescopic drive component 3-1 engages with the web reinforcement mesh 4 for pushing. A protective tube is fitted on the outer side of the telescopic drive component 3-1, and the protective tube is fixedly connected to the operating platform 1. The hydraulic cylinder is controlled to extend and retract through the control system 3-3, thereby pushing and pushing the web reinforcement mesh 4, causing it to deform and produce an arc.
[0022] like Figure 2 As shown, in this embodiment, the web reinforcement mesh 4 includes a reinforcement mesh frame 4-1. Several rows of stirrups 4-2 are arranged between opposite sides of the reinforcement mesh frame 4-1. The stirrups 4-2 are hoop bars, connecting the left and right sides of the reinforcement mesh frame 4-1. Each row of stirrups 4-2 is fixedly connected as a whole by longitudinal bars 4-3. The movable end of the telescopic drive member 3-1 engages with the longitudinal bars 4-3 in a pushing action. When the telescopic drive member 3-1 pushes the longitudinal bars 4-3, the longitudinal bars 4-3 drive the stirrups 4-2, thereby causing deformation of the reinforcement mesh frame 4-1 on both sides.
[0023] like Figure 3 As shown, in this embodiment, the fixing device 2 is a connecting rod, and there are three fixing devices 2 arranged from top to bottom, namely the first connecting rod 2-1, the second connecting rod 2-2, and the third connecting rod 2-3. Two telescopic driving members 3-1 are arranged above the first connecting rod 2-1; three telescopic driving members 3-1 are arranged between the first connecting rod 2-1 and the second connecting rod 2-2; three telescopic driving members 3-1 are arranged between the second connecting rod 2-2 and the third connecting rod 2-3; and two telescopic driving members 3-1 are arranged below the third connecting rod 2-3.
[0024] like Figures 1 to 3 As shown, the operation process of this utility model is as follows:
[0025] First, after the web reinforcement mesh 4 of the box girder is fabricated, the first connecting rod 2-1, the second connecting rod 2-2, and the third connecting rod 2-3 are tied and fixed to the web reinforcement mesh 4 to stabilize it and prevent the reinforcement mesh from deforming and expanding.
[0026] When it is necessary to change the curvature of the upper and lower surfaces of the box girder web, the telescopic drive component 3-1 above the first connecting rod 2-1 and below the third connecting rod 2-3 is pushed by the control system 3-3, while the other telescopic drive components 3-1 remain stationary. This allows the telescopic drive component 3-1 to pass through the gaps in the steel mesh 4-1 and push the longitudinal reinforcement 4-3 in that direction. The longitudinal reinforcement 4-3 drives the upright reinforcement 4-2, which in turn causes the steel mesh 4-1 on the left and right sides to deform and produce curvature.
[0027] When it is necessary to change the curvature of the middle surface of the box girder web, the telescopic drive component 3-1 between the first connecting rod 2-1 and the second connecting rod 2-2, and between the second connecting rod 2-2 and the third connecting rod 2-3, is controlled by the control system 3-3 to pass through the gap of the steel mesh 4-1 and push the longitudinal reinforcement 4-3 in that direction. The other telescopic drive components 3-1 remain stationary, so that the middle part of the web steel mesh 4 deforms to produce curvature.
[0028] When it is necessary to change the curvature of the middle and lower part of the web of the box girder, the telescopic drive component 3-1 between the second connecting rod 2-2 and the third connecting rod 2-3 and below the third connecting rod 2-3 is controlled by the control system 3-3 to pass through the gap of the steel mesh 4-1 and push the longitudinal reinforcement 4-3 in that direction. The other telescopic drive components 3-1 remain stationary, so that the middle and lower parts of the web steel mesh 4 deform to produce curvature.
[0029] It should be noted that the pushing length of each telescopic drive component 3-1 can be controlled according to actual needs to adapt to different curvature requirements.
[0030] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. An automatically adjustable box girder web reinforcement adjustment device, characterized by: The utility model provides an operating platform and pusher device, including operating platform (1), operating platform (1) is provided with a plurality of fixed device (2) from top to bottom, one end of fixed device (2) is fixedly connected on operating platform (1), the other end of fixed device (2) is fixedly connected with web reinforcement net (4); The operating platform (1) is provided with a plurality of pusher devices (3) that can be driven to extend and retract on the side facing the web reinforcement net (4), one end of the pusher device (3) is fixedly connected to the operating platform (1), and the other end of the pusher device (3) is in abutment with the web reinforcement net (4).
2. The self-adjustable box girder web reinforcement adjusting device according to claim 1, characterized in that: The fixed device (2) is provided with at least three, and the fixed device (2) is a connecting rod.
3. The self-adjustable box girder web reinforcement adjusting device according to claim 1, characterized in that: The pusher device (3) includes a telescopic drive (3-1) and a control system (3-3) for controlling the action of the telescopic drive (3-1), and the telescopic drive (3-1) and the control system (3-3) are connected through a pipeline (3-2).
4. The self-adjustable box girder web reinforcement adjusting device according to claim 3, characterized in that: The telescopic drive (3-1) is an oil cylinder, and the control system (3-3) is a hydraulic control system.
5. The self-adjustable box girder web reinforcement adjusting device according to claim 1, characterized in that: The web reinforcement net (4) includes a reinforcement net frame (4-1), and a plurality of frame vertical reinforcements (4-2) arranged in rows and columns are arranged between opposite surfaces of the reinforcement net frame (4-1), the frame vertical reinforcements (4-2) in each row are fixedly connected by longitudinal reinforcements (4-3) to form an integral whole, and the movable end of the pusher device (3) is in abutment with the longitudinal reinforcement (4-3).