Box girder camber forming jig
By designing a jig for forming the camber of box girders, the problems of large camber errors and interface connection risks of long box girders were solved, and the camber met the drawing requirements and the interface was consistent, making it suitable for the production and inspection of various product sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DAMING HEAVY IND
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-12
AI Technical Summary
In the current long box girder manufacturing process, there are large camber errors and large deformations, and segmented manufacturing poses risks to interface connection.
Design a jig for forming the camber of a box girder, which includes multiple transverse sections. Each section consists of a pad, column, plate, transverse support, longitudinal support and fasteners. The jig has its own camber point, which is used to simultaneously produce three sections and check whether the camber meets the drawing requirements.
The arch dimensions meet the drawing requirements, ensuring that the three-section interface dimensions are consistent. After welding, the components can be assembled on the jig and reused to adapt to different product sizes.
Smart Images
Figure CN224347207U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the installation of long box girders, specifically a jig for forming the camber of a box girder. Background Technology
[0002] The existing product is a long box girder structure (see cross-section of the long box girder). Figure 5 It consists of three parts (see) Figure 4 The customer requires that after the three long box girder sections are assembled, they must meet the camber requirements specified in the drawings, with the maximum camber point located on the second long box girder section.
[0003] Currently, long box girders are first fabricated horizontally, and then the camber is manufactured laterally. However, this process results in significant errors and large deformation. Therefore, it is necessary to prefabricate the camber first, and then form the box girder. Some manufacturers also use segmented fabrication, but there is a risk that the joints may not connect properly. Utility Model Content
[0004] To overcome the shortcomings of the existing technology, this utility model provides a jig for forming the camber of a box girder. In order to meet the requirement that the box girder has its own camber during manufacturing, the jig is designed according to the camber requirements. The jig has its own camber point and is an integral jig that can meet the simultaneous manufacturing of three sections. The jig can be used for manufacturing and inspection, and is convenient to use.
[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: a box beam arch forming and manufacturing jig, comprising multiple transverse sections, each of which includes a pad, multiple columns, multiple plates, transverse supports, multiple longitudinal supports, and multiple fasteners;
[0006] The pad is fixed to the ground using the fasteners, the plurality of columns are welded to the pad, the transverse support is welded to the upper side of the plurality of columns, the plurality of plates are welded to the transverse support to support the box beam, and the plurality of longitudinal supports are welded to the transverse support.
[0007] The multiple panels in the same transverse section have the same height, while the panels in different transverse sections have different heights.
[0008] Furthermore, the number of each of the uprights, the mounting plate, the horizontal support, and the vertical support is 5, and the number of the fasteners is 10, and they are located in pairs on both sides of the uprights.
[0009] Furthermore, the fasteners include chemical bolts, washers, and nuts.
[0010] In summary, this utility model achieves the following technical effects:
[0011] This utility model product is manufactured by placing it directly on the jig, and the arch size can meet the requirements of the drawings;
[0012] This utility model can be manufactured in three sections simultaneously to ensure that the dimensions at the interface between two sections are consistent.
[0013] The assembly of the three welded sections of this utility model can be completed on a jig; at the same time, the jig can be used to check whether the camber of the product meets the requirements of the drawings.
[0014] This box girder structure has many different products, with the only difference being the length and camber dimensions between them.
[0015] The frame can be modified to fit the dimensions of various products and is reusable. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a jig for forming the arch of a box girder.
[0017] Figure 2 This is a longitudinal schematic diagram of the tire frame;
[0018] Figure 3 This is a top view of the tire frame;
[0019] Figure 4 This is a longitudinal schematic diagram of a box girder;
[0020] Figure 5 This is a schematic diagram of a box girder;
[0021] Figure 6 This is a cross-sectional diagram after installation. Detailed Implementation
[0022] The present invention will be further described in detail below with reference to the accompanying drawings.
[0023] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0025] Furthermore, 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 number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0027] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0028] Example:
[0029] Figure 1 This is a schematic diagram of a jig for forming the arch of a box beam. The width of the jig is transverse and the length of the jig is longitudinal. It includes multiple transverse sections. Each of the transverse sections includes a pad 30, multiple columns 26, multiple plates 27, transverse supports 28, multiple longitudinal supports 29, and multiple fasteners.
[0030] The pad 30 is fixed to the ground using the fasteners. The plurality of columns 26 are welded to the pad 30. The transverse support 28 is welded to the upper side of the plurality of columns 26. The plurality of plates 27 are correspondingly welded to the transverse support 28 to support the box beam. The plurality of longitudinal supports 29 are correspondingly welded to the transverse support 28.
[0031] The multiple plates 27 in the same transverse section have the same height, while the plates 27 in different transverse sections have different heights.
[0032] The number of columns 26, the plate 27, the horizontal support 28, and the vertical support 29 are all 5, and the number of fasteners is 10, and they are located in pairs on both sides of the column 26.
[0033] The fasteners include chemical bolts 31, washers 32, and nuts 33.
[0034] The initial height of the mounting plates 27 is uniform, used to support the box girder. The height of the mounting plates 27 can be cut, and the height of the mounting plates 27 on the same transverse section is uniform.
[0035] like Figure 1 As shown, draw the horizontal center line on the ground, install the chemical bolts 31 according to the dimensions, install the washers 30, and then install the washers 32 and nuts 33. After installation, install the columns 26, the horizontal supports 28, and the mounting plates 27 in sequence.
[0036] like Figure 2 , 3 As shown, Figure 2 This is a longitudinal diagram of the tire frame. Figure 3 This is a top view of the jig; draw the longitudinal center line. Then, according to the dimensions in the drawing, make multiple transverse sections. After all sections are made, finally connect all the transverse sections with sequential longitudinal supports 29 to form the jig prototype and complete all welding.
[0037] Figure 4 This is a longitudinal schematic diagram of a box girder. The height of each point is different, with the middle section arching upwards. The highest arch is located in the second section of the jig, so the sequential plate 27 needs to be trimmed according to the drawing requirements. However, the height of the five sequential plates 27 on a transverse section must be consistent. After the trimming is completed, the jig is officially completed.
[0038] Figure 5This is a schematic diagram of a box girder, including slab 1, slab 2, slab 3, slab 4, slab 5, slab 6, slab 7, slab 8, slab 9, slab 10, slab 11, slab 12, slab 13, slab 14, slab 15, slab 16, slab 18, slab 18, slab 19, slab 20, slab 21, slab 22, slab 23, slab 24, and slab 25.
[0039] Locate the center line of plate 8 (8), place plate 8 on the jig, ensuring that the center line of plate 8 coincides with the center line of the jig, and that plate 8 is completely flush with the transverse support 28, then spot weld it in place. Install plates 1 (1), 3 (3), 4 (4), 5 (5), and 7 (7) according to the dimensions in the customer's drawings. After welding, install plates 18 (18), 6 (6), and 2 (2) in sequence. After welding, install plates 13 (13), 14 (14), 20 (20), 21 (21), 11 (11), 23 (23), 9 (9), and 25 (25) in sequence. Finally, install plates 12 (12), 15 (15), 18 (17), 19 (19), 22 (22), 10 (10), 16 (16), and 24 (24) to complete all welding. The box body is now finalized.
[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.
Claims
1. A jig for forming the camber of a box girder, characterized in that: It includes multiple transverse sections, each of which includes a pad (30), multiple columns (26), multiple plates (27), a transverse support (28), multiple longitudinal supports (29), and multiple fasteners; The pad (30) is fixed to the ground by the fasteners, the plurality of columns (26) are welded to the pad (30), the transverse support (28) is welded to the upper side of the plurality of columns (26), the plurality of plates (27) are welded to the transverse support (28) to support the box beam, and the plurality of longitudinal supports (29) are welded to the transverse support (28). The multiple plates (27) of the same transverse cross section have the same height, while the plates (27) of different transverse cross sections have different heights.
2. The jig for forming the camber of a box girder according to claim 1, characterized in that: The number of each of the uprights (26), the plate (27), the horizontal support (28), and the vertical support (29) is 5, and the number of the fasteners is 10, and they are located in pairs on both sides of the uprights (26).
3. The jig for forming the camber of a box girder according to claim 1, characterized in that: The fasteners include chemical bolts (31), washers (32), and nuts (33).