Manufacturing method and tooling of inserted ear plate polygonal basket arch bridge

By using plug-in ear plate polygonal basket arch bridge to manufacture tooling and reasonable welding sequence, the problems of welding deformation, accuracy and construction efficiency of plug-in ear plate polygonal basket arch bridge in the prior art are solved, and an efficient and safe construction process is achieved.

CN114319068BActive Publication Date: 2025-02-21CHINA RAILWAY BAOJI BRIDGE YANGZHOU CO LTD +1
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202210061606.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-01-19
Publication Date
2025-02-21
Estimated Expiration
2042-01-19

AI Technical Summary

Technical Problem

The prior art is difficult to effectively control the welding deformation, accuracy and welding quality of the insert ear plate polygonal basket arch bridge, and the construction efficiency is low, difficult and high risk.

Method used

Use insertion ear plate polygonal basket arch bridge to manufacture tooling, combined with the notch process control, and box-type welding is carried out in a reasonable welding sequence, including welding the flat edge and corner welds inside and outside the box, and then flip the 180° welding. Flat welds inside and outside the box.

Benefits of technology

Welding deformation is effectively controlled, accuracy requirements are ensured, installation process is simplified, construction efficiency and safety are improved, and construction difficulty is reduced.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN114319068B_ABST
    Figure CN114319068B_ABST
Patent Text Reader

Abstract

Provided is a manufacturing method of a polygonal basket arch bridge with an inserted ear plate and a tooling thereof, comprising the following steps: tooling adjustment and inspection; assembling a fixed side lower belly plate; assembling a fixed side partition plate; assembling a movable side lower belly plate; assembling a movable side partition plate; assembling a top plate and a bottom plate; assembling a left upper belly plate and a right upper belly plate; assembling an inserted ear plate; box-type welding. The present invention has a simple structure, is easy to use, has efficient positioning, is safe and reliable, has ideal versatility, and is efficient in construction. It provides a reference for the manufacture of similar steel components, solves the problem that the large linear shape of the cross section is difficult to control and the angle of the ear plate is difficult to control; and improves production efficiency, achieves certain economic benefits, has extremely high practical and promotion value, and is suitable for promotion.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention belongs to the technical field of manufacturing a basket handle arch bridge for fixed buildings, and in particular relates to a manufacturing method and tooling of an inserted ear plate polygonal basket handle arch bridge. Background Art

[0002] The basket arch bridge is a bridge that is statically determinate outside and statically indeterminate inside, and has the advantages of small structural height and low total cost. In recent years, basket arch bridges have become more and more common in urban landscape bridges, with more and more diverse cross-sectional forms and more and more widely used lug anchoring forms.

[0003] (See Figure 1 ) In the past, the top plate 1, bottom plate 2, and web plate 3 of the basket handle arch bridge section were mostly rectangular sections. However, for the inserted ear plate polygonal basket handle arch bridge, since the basket handle arch bridge structure section is polygonal, and the ear plate is an inserted ear plate 4. (such as Figure 2 ) Take the hexagonal basket arch bridge as an example: its cross-sectional dimensions gradually change from 3m×5m to 3m×3.5m; and the top plate 1 and the bottom plate 2 are both curved, and the web 3 has a sagittal value of up to 540mm; if the positive installation method is adopted, the cross-sectional dimensions of the arch rib are large, and the danger is greater during the production and manufacturing process; and the inserted ear plate 4 can only be inserted from the bottom to the top, which is difficult to install. Therefore, for the polygonal inserted ear plate basket arch bridge, in order to control its welding deformation, control the precision requirements and welding quality; improve construction efficiency, reduce construction difficulty, and ensure construction safety, the following technical solutions are proposed. Summary of the invention

[0004] The technical problem solved by the present invention is: to provide a manufacturing method and tooling of an inserted ear plate polygonal basket arch bridge, so as to solve a series of problems such as difficulty in installation of the inserted ear plate polygonal basket arch bridge, large welding deformation, difficulty in controlling the precision and welding quality, low construction efficiency, great construction difficulty and high construction risk.

[0005] The technical solution adopted by the present invention is a method for manufacturing an inserted ear plate polygonal basket arch bridge, comprising the following steps:

[0006] S001. Tooling adjustment and testing.

[0007] S002. Assemble and fix the side lower belly plate.

[0008] S003. Assemble and fix the side partitions.

[0009] S004. Assemble the lower belly plate on the moving side.

[0010] S005. Assemble the movable side partition.

[0011] S006. Assemble the top plate and the bottom plate.

[0012] S007. Assemble the left upper abdominal plate and the right upper abdominal plate.

[0013] S008. Assemble the plug-in ear plate.

[0014] S009, box type welding.

[0015] In the above technical solution, further: in step S009, the predetermined welding sequence and steps are to first weld the flat corner welds inside and outside the box; then flip the box 180° in the vertical plane, and then weld the flat welds inside and outside the box.

[0016] In the above technical solution, further: the predetermined welding sequence and steps in step S009 include:

[0017] S091. Weld weld seam I, weld seam II, weld seam III, weld seam IV and weld seam VI in sequence;

[0018] S092, turn the box 180° in the vertical plane;

[0019] S093. Weld weld seam VII, weld seam VIII, weld seam IX, weld seam X, weld seam XI, and weld seam XII in sequence.

[0020] In the above technical solution, further: in step S009, the notch of the bottom plate for assembling the plug-in ear plate is set horizontally, and the notch process amount is the standard value + 8mm.

[0021] It also includes a manufacturing tool for an inserted ear plate polygonal basket arch bridge used in the manufacturing method of an inserted ear plate polygonal basket arch bridge, the tooling comprising a special tire frame with a horizontal structure, a V-shaped tire frame is provided at the center of the horizontal upper end surface of the special tire frame; a plurality of height-adjustable elevation support plates are vertically provided on the V-shaped upper end surface of the V-shaped tire frame; safety side guards are vertically provided on both sides of the special tire frame; a horizontal tightening device with adjustable horizontal extension length is provided on the inner side of the top of the safety side guard.

[0022] In the above technical solution, further: the special tire frame is a horizontal box-type structure made of welded steel sections.

[0023] In the above technical solution, further: the V-shaped tire frame is made of channel steel or square steel welded together, and the V-shaped angle of the V-shaped tire frame is 140° to 155°.

[0024] In the above technical scheme, further: the elevation support plate is a support block structure; a screw is provided at the bottom of the support block, and the screw is vertically screwed to the V-shaped positioning surface of the V-shaped tire frame, and the linear shape of the tooling positioning support arch rib web is adjusted by adjusting the elevation of the elevation support plate screw; the linear shape of the tooling positioning support arch rib web is the same as the linear shape of the arch rib web.

[0025] In the above technical solution, further: the tightening device is a pneumatic cylinder or an oil cylinder.

[0026] In the above technical solution, further: the tightening device is a screw.

[0027] The advantages of the present invention compared with the prior art are:

[0028] 1. The present invention adopts the inserted ear plate polygonal basket arch bridge manufacturing tooling, combined with the notch process quantity control, and follows a reasonable welding sequence to effectively solve the manufacturing problems of the inserted ear plate polygonal basket arch bridge: the welding deformation is controlled to ensure the accuracy requirements; the installation is simple, the consistency is excellent, and the quality is stable; the construction is simple and efficient, and the construction safety is guaranteed; it serves as a good reference for the subsequent similar steel beam arch rib manufacturing.

[0029] 2. The present invention adopts V-shaped tooling, with the web of the polygonal basket arch bridge facing downward and the inserted ear plate notches arranged horizontally, which improves the production safety of the arch ribs on the one hand and facilitates the insertion of the inserted ear plates, which is simple and efficient on the other hand.

[0030] 3. The base plate of the present invention takes into account appropriate notch process quantities, thereby achieving better practical effects.

[0031] 4. The present invention adopts a reasonable assembly sequence and welding sequence, which effectively avoids the upward welding operation on the one hand, and effectively controls the welding deformation and ensures the accuracy requirements on the other hand.

[0032] 5. The present invention has the advantages of simple structure, convenient use, efficient positioning, safety and reliability, ideal versatility and efficient construction. It provides a reference for the manufacture of similar steel components, and solves the problems of large cross-section, difficult-to-control linear shape and difficult-to-control lug angle. It also improves production efficiency and achieves certain economic benefits. It has extremely high practical and promotion value and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the structure of a rectangular cross-section basket arch bridge;

[0034] Figure 2 This is a schematic diagram of the cross-sectional structure of the insert-type ear plate polygonal basket arch bridge to be manufactured in the present invention;

[0035] Figure 3 This is a state diagram of the insert-type ear plate polygonal basket arch bridge of the present invention in an assembled state;

[0036] Figure 4 It is a structural schematic diagram of the manufacturing tooling of the insert-type ear plate polygonal basket arch bridge of the present invention;

[0037] Figure 5 This is the state diagram of step S001 of the present invention;

[0038] Figure 6 This is the state diagram of step S002 of the present invention;

[0039] Figure 7 This is the state diagram of step S003 of the present invention;

[0040] Figure 8 This is the state diagram of step S004 of the present invention;

[0041] Fig. 9 This is the state diagram of step S005 of the present invention;

[0042] Fig.10 This is the state diagram of step S006 of the present invention;

[0043] Fig.11 This is the state diagram of step S007 of the present invention;

[0044] Fig.12 This is the state diagram of step S008 of the present invention;

[0045] Fig.13 This is the state diagram of step S009 of the present invention;

[0046] Fig.14 This is a state diagram of the box type welding sequence in step S091 of the present invention;

[0047] Fig.15 This is a state diagram of the welding sequence after the box type is turned over in step S093 of the present invention;

[0048] Fig.16 is a flow chart of the method of the present invention;

[0049] Fig.17 This is a schematic diagram of spot welding breakpoints in step S006 of the present invention.

[0050] In the figure: 1-top plate, 2-bottom plate, 3-polygonal arch rib web, 4-inserted ear plate, 5-fixed side partition, 6-movable side partition, 7-special tire frame, 8-V-shaped tire frame, 9-elevation support plate, 10-safety side stop, 11-tightening device; 301-fixed side lower web, 302-movable side lower web, 303-left upper web, 304-right upper web. DETAILED DESCRIPTION

[0051] The following will be combined with the attached embodiment of the present invention Figure 1-17 , the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] The present invention takes the arch rib of Ningbo Xindian Bridge as an example: the structural form of the arch rib is a variable cross-section hexagonal basket arch rib (such as Figure 2 , Figure 3 As shown), the inserted ear plate 4 is connected to the groove of the bottom plate 2; the arch rib box-shaped outline dimensions are approximately: 3.0m wide X (3.5~5)m high X (12~18)m long, and the weight is approximately 90 tons.

[0053] (Combined Fig.16 ) The manufacturing method of the inserted ear plate polygonal basket arch bridge adopted comprises the following steps:

[0054] (like Figure 5 Step S001, tooling adjustment and testing: adjust and test the V-shaped tire frame 8 elevation support plate 9, so that the V-shaped positioning surface formed by the elevation support plate 9 matches the V-shaped angle of the inserted ear plate polygonal basket arch bridge polygonal arch rib web 3, and return the jacking device 11 to the initial position. That is, ensure that the tooling support line shape is consistent with the hexagonal basket arch rib box-shaped web line shape.

[0055] (like Figure 6 As shown in step S002, assemble the fixed side lower belly plate 301: assemble the fixed side lower belly plate 301 on the left side of the inserted ear plate polygonal basket arch bridge manufacturing tooling, and fit the fixed side lower belly plate 301 tightly with all the elevation support plates 9 on the left side of the tooling to fix the linear shape of the left lower side belly plate.

[0056] (like Figure 7 (as shown) Step S003, assemble the fixed side partition plate 5: assemble the fixed side partition plate 5 on the fixed side lower belly plate 301, and position and weld the fixed side partition plate 5 and the fixed side lower belly plate 301 to fix them together, that is, assemble and weld the left lower belly plate and the left fixed side partition plate 5 to fix them together.

[0057] (like Figure 8 Step S004, assembling the lower belly plate 302 on the movable side: assemble the lower belly plate 302 on the right side of the insert-type ear plate polygonal basket arch bridge manufacturing tooling, and tightly fit the lower belly plate 302 on the movable side with all the elevation support plates 9 on the right side of the tooling. That is, fix the lower right belly plate to ensure the linear shape of the lower right belly plate.

[0058] (like Fig. 9 (as shown) Step S005, assemble the movable side partition 6: assemble the movable side partition 6 on the movable side lower belly plate 302, weld the movable side partition 6 and the movable side lower belly plate 302 to fix them, and the movable side partition 6 and the fixed side partition 5 are closely fitted and docked; that is, assemble the right lower belly plate and the right side partition, and ensure the fit between the movable side partition 6 and the fixed side partition 5.

[0059] (like Fig.10Step S006, assembling the top plate 1 and the bottom plate 2: assembling the top plate 1 outside the fixed side partition 5, extending the left side tightening device 11 and vertically tightening the left outer vertical side wall of the top plate 1 to prevent the top plate 1 from tipping over, and spot welding the top plate 1 to the fixed side partition 5. Similarly: assembling the bottom plate 2 outside the movable side partition 6, extending the right side tightening device 11 and vertically tightening the right outer vertical side wall of the bottom plate 2, and spot welding the bottom plate 2 to the movable side partition 6.

[0060] Further: (such as Fig.17 As shown in FIG. 1 , the setting of the spot welding breakpoints in step S006 is to reduce the deformation of the notch during CNC blanking, set the breakpoints during CNC programming, and the breakpoint spot welding spacing is guaranteed to be 1500 mm.

[0061] (like Fig.11 As shown in step S007, assemble the upper left web 303 and the upper right web 304: assemble the upper left web 303 with the fixed side partition 5; assemble the upper right web 304 with the movable side partition 6, check the box shape and linear accuracy, and prepare to weld the fixed box after meeting the requirements.

[0062] (like Fig.12 As shown in step S008, assembling the plug-in ear plate 4: assembling the plug-in ear plate 4 at the horizontal notch position of the bottom plate 2 and welding and fixing the plug-in ear plate 4.

[0063] (like Fig.13 (as shown) Step S009, box type welding: complete the box type assembly welding according to the established welding sequence and steps.

[0064] In the above embodiment, further: in step S009, the predetermined welding sequence and steps are to first weld the horizontal corner welds inside and outside the box; then, after the box is turned 180° in the vertical plane, weld the horizontal welds inside and outside the box. The purpose of welding after turning over is to change all the upward welding to the downward welding, which is convenient for welding operation.

[0065] In the above embodiment, further: the predetermined welding sequence and steps in step S009 include:

[0066] (like Fig.14 (as shown in step S091, sequentially weld the lower weld seam I of the fixed side partition 5 and the movable side partition 6; the inner weld seam II of the top plate 1 and the fixed side lower belly plate 301; the inner weld seam III of the movable side lower belly plate 302 and the bottom plate 2; the outer weld seam IV of the top plate 1 and the left upper belly plate 303; the outer weld seam V of the right upper belly plate 304 and the bottom plate 2; and the inner upper weld VI of the inserted ear plate 4 and the bottom plate 2.

[0067] Step S092: Flip the box by 180° in the vertical plane.

[0068] (like Fig.15(as shown in step S093, after the box type is turned 180° in the vertical plane, the lower weld VII of the fixed side partition 5 and the movable side partition 6 is welded in sequence; the inner weld VIII of the bottom plate 2 and the right upper web 304; the inner weld IX of the left upper web 303 and the top plate 1; the outer weld X of the movable side lower web 302 and the bottom plate 2; the outer weld XI of the fixed side lower web 301 and the top plate 1; and the inner upper weld XII of the inserted ear plate 4 and the bottom plate 2.

[0069] The present invention adopts a reasonable assembly sequence and welding sequence, which effectively avoids the upward welding operation on the one hand, and effectively controls the welding deformation and ensures the accuracy requirement on the other hand.

[0070] (like Fig.17 As shown) in the above embodiment, further: in step S009, the groove of the base plate 2 for assembling the inserted ear plate 4 is horizontally arranged, and the groove process amount is the standard value + 8mm.

[0071] The base plate of the present invention takes into account the appropriate notch process quantity, minimizes the notch gap, and at the same time ensures that the inserted ear plate 4 can be smoothly inserted, thereby achieving a better practical effect.

[0072] It can be seen that the present invention adopts the inserted ear plate polygonal basket arch bridge manufacturing tooling, combined with the notch process quantity control, and follows a reasonable welding sequence to effectively solve the manufacturing problems of the inserted ear plate polygonal basket arch bridge: its welding deformation is controlled to ensure its precision requirements; the installation is simple, the consistency is excellent, and the quality is stable; the construction is simple and efficient, and the construction safety is effectively guaranteed; it serves as a good reference for the subsequent manufacture of similar steel beams.

[0073] Specifically: when assembling the arch rib, the designed and manufactured tooling is used to control the linear shape of the arch rib web and the horizontality of the bottom plate groove; when assembling each arch rib segment, seven V-shaped toolings are arranged at intervals in the length direction of the arch rib to position, support and assemble the arch rib box through the tooling.

[0074] The principle of the method of the present invention is as follows: all the overhead welding operations of the box type are changed into the downward welding operations; the overhead insertion installation of the inserted ear plate 4 is changed into the horizontal insertion installation, and the construction is efficient, safe and reliable.

[0075] It also includes a manufacturing tool for an inserted ear plate polygonal basket arch bridge used in the manufacturing method of an inserted ear plate polygonal basket arch bridge.

[0076] (like Figure 4 The tooling includes a dedicated tire frame 7 with a horizontal structure.

[0077] In the above embodiment, further: the dedicated tire frame 7 is a 400mmX400mm horizontal box-shaped structure made of welded steel sections.

[0078] A V-shaped tire frame 8 is provided at the center of the horizontal upper end surface of the special tire frame 7.

[0079] In the above embodiment, further: the V-shaped tire frame 8 is made of No. 20 channel steel or square steel welded together, has a certain rigidity to support the weight of the arch rib component, and the V-shaped angle of the V-shaped tire frame 8 is 140°~155°.

[0080] The V-shaped upper end surface of the V-shaped tire frame 8 is vertically provided with a plurality of height-adjustable elevation support plates 9 .

[0081] Embodiment 1:

[0082] The elevation support plate 9 includes a base and a top support block. The base and the bottom of the top support block are fastened together by strip holes. By adjusting the height of the top support block relative to the base and locking the positions of the strip holes of the two, the height adjustment of the elevation support plate 9 can be achieved.

[0083] Embodiment 2:

[0084] In the above embodiment, further: the elevation support plate 9 is a support block structure; a screw is provided at the bottom of the support block, and the screw is vertically screwed to the V-shaped positioning surface of the V-shaped tire frame 8, and the linear shape of the tooling positioning support arch rib web is adjusted by adjusting the elevation support plate 9 screw out elevation; the linear shape of the tooling positioning support arch rib web is the same as the linear shape of the arch rib web 3.

[0085] That is, by adjusting the vertical height of the elevation support plate 9 relative to the surface of the V-shaped tire frame 8, a V-shaped support surface is formed, the linear shape of the V-shaped support surface is consistent with the linear shape of the arch rib web and ensures that the notch of the bottom plate 2 is horizontal.

[0086] On this basis: safety side guards 10 are vertically arranged on both sides of the special tire frame 7, that is, the left and right symmetrical sides of the outer side of the V-shaped tire frame 8.

[0087] A horizontal tightening device 11 capable of adjusting the horizontal extension length is disposed on the inner side of the top of the safety side guard 10 in the horizontal direction.

[0088] Embodiment 1:

[0089] In the above embodiment, further: the jacking device 11 is a gas cylinder or an oil cylinder. The top plate or the bottom plate is jacked and straightened by extending the piston rod of the gas cylinder or the oil cylinder.

[0090] Embodiment 2:

[0091] In the above embodiment, further: the tightening device 11 is a screw rod. The screw rod 11 is rotated to tighten and straighten the top plate or the bottom plate through the outer end surface of the screw rod end nut.

[0092] It should be noted that the safety side guard 10 is vertically arranged, and the height of the tightening device 11 installed on the top of the safety side guard 10 is higher than the center of gravity of the top plate 1 and the bottom plate 2, so as to prevent the vertically arranged top plate 1 and the bottom plate 2 from overturning.

[0093] It can be seen that the present invention adopts a V-shaped tooling, with the polygonal basket arch bridge web 3 facing downward (such as Fig.13 As shown), the slots of the inserted ear plates 4 are arranged horizontally, which, on the one hand, improves the safety of the arch rib production, and on the other hand, the horizontal insertion of the inserted ear plates 4 is more convenient, simple and efficient than the upward insertion.

[0094] From the above description, it can be found that: the V-shaped support line shape of the V-shaped tooling in the manufacturing technical conditions of the present invention is consistent with the line shape of the arch rib web, while ensuring that the bottom plate slot is level; the bottom plate insertion slot is set with a reasonable process quantity; the deformation of the bottom plate slot blanking is considered in advance; and a reasonable welding sequence and process parameters are implemented.

[0095] Compared with the prior art, the advantages and effects of the present invention are as follows: the present invention effectively solves the problem of the inserted ear plate polygonal basket arch bridge; effectively guarantees the design accuracy requirements; improves the safety and efficiency of arch rib manufacturing; and provides a reference for the manufacture of similar steel components in the future.

[0096] Therefore, the present invention has a simple structure, is easy to use, has efficient positioning, is safe and reliable, has ideal versatility, and has efficient construction. It provides a reference for the manufacture of similar steel components, solves the difficult problems of large cross-sectional linear shapes and ear plate angles that are difficult to control, and improves production efficiency, achieving certain economic benefits. It has extremely high practical and promotion value and is suitable for promotion.

[0097] In summary, the manufacturing method of the inserted ear plate hexagonal basket handle arch bridge and the tooling thereof of the present invention fully meet the requirements of arch rib accuracy; more importantly, they meet the geometric size requirements and welding quality requirements, and improve production efficiency; they have extremely high practical and promotion value; and can serve as a good reference in the subsequent manufacturing process of similar basket handle arch bridges.

[0098] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0099] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A method for manufacturing an inserted ear plate polygonal basket arch bridge, characterized in that: The steps include: S001, tooling adjustment and testing: adjust and test the elevation support plate (9) of the V-shaped tire frame (8) so that the V-shaped positioning surface formed by the elevation support plate (9) matches the V-shaped angle of the polygonal arch rib web (3) of the inserted ear plate polygonal basket arch bridge, and return the tightening device (11) to the initial position; S002, assembling the fixed side lower belly plate (301): assembling the fixed side lower belly plate (301) on the left side of the insert-type ear plate polygonal basket arch bridge manufacturing tooling, and closely fitting the fixed side lower belly plate (301) with all the elevation support plates (9) on the left side of the tooling; S003, assembling the fixed side partition (5): assembling the fixed side partition (5) on the fixed side lower belly plate (301), and positioning and welding the fixed side partition (5) and the fixed side lower belly plate (301) to be fixedly connected; S004, assembling the lower belly plate (302) on the movable side: assembling the lower belly plate (302) on the right side of the insert-type ear plate polygonal basket arch bridge manufacturing tooling, and closely fitting the lower belly plate (302) on the movable side with all the elevation support plates (9) on the right side of the tooling; S005, assembling the movable side partition (6): assembling the movable side partition (6) on the movable side lower web (302), welding the movable side partition (6) and the movable side lower web (302) to be fixedly connected, and the movable side partition (6) and the fixed side partition (5) are closely fitted and docked; S006, assembling the top plate (1) and the bottom plate (2): assembling the top plate (1) on the outside of the fixed side partition (5), extending the left side tightening device (11) and vertically tightening the left outer vertical side wall of the top plate (1), and fixing the top plate (1) and the fixed side partition (5) by spot welding; assembling the bottom plate (2) on the outside of the movable side partition (6), extending the right side tightening device (11) and vertically tightening the right outer vertical side wall of the bottom plate (2), and fixing the bottom plate (2) and the movable side partition (6) by spot welding; S007, assembling the left upper web (303) and the right upper web (304): assembling the left upper web (303) and the fixed side partition (5); assembling the right upper web (304) and the movable side partition (6), inspecting the box shape and linear accuracy, and preparing to weld the fixed box after meeting the requirements; S008, assembling the plug-in ear plate (4): assembling the plug-in ear plate (4) on the bottom plate (2) and welding and fixing it; S009, box welding: complete the box welding according to the established welding sequence and steps; In step S009, the predetermined welding sequence and steps are to first weld the flat corner welds inside and outside the box; then, after turning the box 180° in the vertical plane, weld the flat welds inside and outside the box.

2. The manufacturing method of the insert-type ear plate polygonal basket arch bridge according to claim 1 is characterized in that: The predetermined welding sequence and steps in step S009 include: S091, sequentially welding the lower weld seam I of the fixed side partition (5) and the movable side partition (6); the inner weld seam II of the top plate (1) and the fixed side lower belly plate (301); the inner weld seam III of the movable side lower belly plate (302) and the bottom plate (2); the outer weld seam IV of the top plate (1) and the left upper belly plate (303); the outer weld seam V of the right upper belly plate (304) and the bottom plate (2); and the inner upper weld seam VI of the inserted ear plate (4) and the bottom plate (2); S092, turn the box 180° in the vertical plane; S093, sequentially weld the lower weld seam VII of the fixed side partition plate (5) and the movable side partition plate (6); the inner weld seam VIII of the bottom plate (2) and the right upper web plate (304); the inner weld seam IX of the left upper web plate (303) and the top plate (1); the outer weld seam X of the movable side lower web plate (302) and the bottom plate (2); the outer weld seam XI of the fixed side lower web plate (301) and the top plate (1); and the inner upper weld XII of the inserted ear plate (4) and the bottom plate (2).

3. The manufacturing method of the insert-type ear plate polygonal basket arch bridge according to claim 1 is characterized in that: In step S009, the notch of the bottom plate (2) for assembling the plug-in ear plate (4) is arranged horizontally, and the notch process amount is the standard value + 8 mm.

4. The insert-type ear plate polygonal basket handle arch bridge manufacturing tooling used in the insert-type ear plate polygonal basket handle arch bridge manufacturing method as claimed in claim 1, 2 or 3, characterized in that: The tooling comprises a special tire frame (7) of a horizontal structure, a V-shaped tire frame (8) being provided at the center of the horizontal upper end surface of the special tire frame (7); a plurality of height-adjustable elevation support plates (9) being vertically provided on the V-shaped upper end surface of the V-shaped tire frame (8); safety side guards (10) being vertically provided on both sides of the special tire frame (7); and a horizontal tightening device (11) capable of adjusting the horizontal extension length being provided on the inner side of the top of the safety side guard (10).

5. The manufacturing tooling of the insert-type ear plate polygonal basket arch bridge according to claim 4 is characterized in that: The special tire frame (7) is a horizontal box-shaped structure made of welded steel sections.

6. The manufacturing tooling for inserting ear plate polygonal basket arch bridge according to claim 4 is characterized by: The V-shaped tire frame (8) is made by welding channel steel or square steel, and the V-shaped angle of the V-shaped tire frame (8) is 140° to 155°.

7. The manufacturing tooling for inserting ear plate polygonal basket arch bridge according to claim 4 is characterized by: The elevation support plate (9) is a support block structure; a screw is provided at the bottom of the support block, and the screw is vertically screwed to the V-shaped positioning surface of the V-shaped tire frame (8); the linear shape of the tooling positioning support arch rib web is adjusted by adjusting the elevation of the screw of the elevation support plate (9); the linear shape of the tooling positioning support arch rib web is the same as the linear shape of the arch rib web (3).

8. The manufacturing tooling for inserting ear plate polygonal basket arch bridge according to claim 4 is characterized by: The tightening device (11) is a pneumatic cylinder or an oil cylinder.

9. The manufacturing tooling for inserting ear plate polygonal basket arch bridge according to claim 4 is characterized by: The tightening device (11) is a screw.

Citation Information

Patent Citations

  • Manufacturing method for large-span single-arch-rib steel box arch

    CN105421211A

  • Steel box arch section and assembling method thereof

    CN111561127A