An assembled pedestrian overpass and a side assembling body partial machining method thereof

Abstract

The application discloses an assembled pedestrian overpass and a side assembling body partial processing method thereof, and relates to the technical field of pedestrian overpasses.The assembled pedestrian overpass comprises a main body part and a side assembling body part.The main body part comprises a main body top plate, a main body bottom plate, a main body web plate and a transverse partition plate one, and the transverse partition plate one is fixed between the main body top plate, the main body bottom plate and the main body web plate.The side assembling body part comprises an assembling body top plate, a transverse partition plate two and a side web plate, the transverse partition plate two is fixed between the assembling body top plate and the side web plate, the assembling body top plate is fixedly connected with the main body top plate, and the side web plate is fixed between the assembling body top plate and the main body bottom plate.The front side of the side web plate is an end face one, the back side of the side web plate is an end face two, the side web plate is curved along the direction from the end face one to the end face two, and the side web plate is curved from top to bottom.The application realizes complete separation of pedestrians and vehicle flow, guarantees the safety of pedestrians, and makes the running of vehicles more smooth, thereby solving the connection problem of urban planning and adding the beautiful scene of the city.

Description

Technical Field

[0001] This invention belongs to the field of pedestrian overpass technology, specifically relating to an assembled pedestrian overpass and a processing method for its side assembly parts. Background Technology

[0002] Pedestrian overpasses are structures in modern cities that assist pedestrians in crossing roads. Constructing overpasses completely separates pedestrians from vehicles, ensuring smooth traffic flow and pedestrian safety. Structurally, common pedestrian overpasses can be divided into three main categories: suspended structures, supported structures, and hybrid structures. Compared to pedestrian crossings: pedestrian crossings are significantly cheaper to build. Furthermore, for the elderly, infirm, and disabled, overpasses can increase their inconvenience. However, overpasses achieve complete separation of pedestrians and vehicular traffic, ensuring greater pedestrian safety and smoother vehicle flow. Compared to underpasses: underpasses are less affected by weather conditions, and in some special urban areas, they do not disrupt the urban landscape. However, pedestrian overpasses are cheaper and have a shorter construction period, while not affecting the road's load-bearing capacity.

[0003] Based on the aforementioned advantages, choosing pedestrian overpasses as a solution in urban planning and construction has become a development trend. Pedestrian overpasses often feature unique designs, solving urban connectivity issues while also enhancing the city's aesthetic appeal.

[0004] In the construction of pedestrian overpasses, what kind of structure should be adopted to achieve complete separation of pedestrians and vehicular traffic, ensuring greater pedestrian safety and smoother vehicle traffic, is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to solve the above-mentioned technical problems existing in the prior art and to provide a method for processing the assembled pedestrian overpass and its side assembly parts.

[0006] The cross-sectional area of ​​the rear end of the pedestrian overpass of this invention is larger than that of the front end, and the area of ​​the top surface of the pedestrian overpass is larger than that of the bottom surface. While ensuring that the space occupied at the bottom of the pedestrian overpass is small, it can increase the passage area for pedestrians and vehicles, realize the complete separation of pedestrians and vehicle traffic, ensure the safety of pedestrians, and make the movement of vehicles smoother. It not only solves the problem of urban planning connection, but also adds to the aesthetics of the city.

[0007] The side web plate in the side assembly has a hyperbolic feature, which achieves the effect of bending at different angles in space, thus realizing the unique structure of the pedestrian bridge of the present invention.

[0008] To reduce processing difficulty, this invention cuts the material according to the dimensions of each splicing unit, dividing the side web into multiple splicing units. This transforms the splicing unit from a curved structure into a planar structure, solving the problem of lateral bending. Then, each steel plate unit is bent to solve the problem of vertical bending, thus accurately obtaining the hyperbolic side web of the required specifications.

[0009] Considering the hyperbolic shape of the side web plate and its large weight, the present invention uses a second transverse diaphragm plate fixed between the top plate and the side web plate of the assembly to increase the strength between the top plate and the side web plate of the assembly, so that the side web plate is not easily deformed, maintains the set shape, and facilitates the fixing of the side web plate between the top plate and the bottom plate of the assembly.

[0010] Furthermore, the present invention positions and installs the side web plate and the second transverse diaphragm, improving the processing quality of the side assembly and ensuring that the shape and strength of the side assembly meet the design requirements.

[0011] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0012] A modular pedestrian bridge, characterized in that it comprises a main body and side assembly parts.

[0013] The main body includes a main top plate, a main bottom plate, a main web plate, and a transverse diaphragm. The main top plate and the main bottom plate are distributed vertically, the main web plate is fixed between the main top plate and the main bottom plate, and the transverse diaphragm is fixed between the main top plate, the main bottom plate, and the main web plate.

[0014] The side assembly includes a top plate, a second transverse partition, and a side web plate. The second transverse partition is fixed between the top plate and the side web plate. The top plate and the main body top plate are fixedly connected. The side web plate is fixed between the top plate and the main body bottom plate.

[0015] The front side of the lateral web is end face one, and the back side of the lateral web is end face two. The lateral web bends along end face one towards end face two, while simultaneously bending from top to bottom.

[0016] The cross-sectional area of ​​the rear end of the pedestrian overpass of this invention is larger than that of the front end, and the area of ​​the top surface of the pedestrian overpass is larger than that of the bottom surface. While ensuring that the space occupied at the bottom of the pedestrian overpass is small, it can increase the passage area for pedestrians and vehicles, realize the complete separation of pedestrians and vehicle traffic, ensure the safety of pedestrians, and make the movement of vehicles smoother. It not only solves the problem of urban planning connection, but also adds to the aesthetics of the city.

[0017] Furthermore, both the first and second diaphragms are provided with through holes, which can appropriately reduce the amount of steel used in the first and second diaphragms and reduce the weight of the main body and the side assembly.

[0018] Furthermore, stiffening plates are provided on both the main body and the side assembly to increase their strength.

[0019] A method for processing the side assembly portion of a modular pedestrian overpass, characterized by comprising the following steps:

[0020] Step A: Divide the side web into units to form several splicing units.

[0021] Step B: Cut the materials according to the dimensions of each divided splicing unit:

[0022] (1) Based on the divided splicing units, draw patterns on the steel plate so that the splicing units are transformed from a curved structure to a planar structure.

[0023] (2) According to the pattern, the steel plate is cut with a flame cutting machine to obtain the required steel plate unit.

[0024] Step C: Beveling is performed on the steel plate units of different sizes obtained from the cutting.

[0025] Step D: Bend each steel plate unit and control the curvature of the bent steel plate unit to form a bent plate;

[0026] Step E: Assemble and install the bent panels:

[0027] (1) Set the assembly platform horizontally, process the top plate according to the design drawings, and then place the top plate of the assembly horizontally on the assembly platform.

[0028] (2) The second diaphragm is fabricated according to the design drawings, and then the second diaphragm is positioned and fixed on the top surface of the top plate of the assembly according to the installation position shown in the drawings.

[0029] (3) Weld a fixing plate between the second diaphragm and the top plate of the assembly. The fixing plate is distributed on both sides of the second diaphragm. Then, according to the height of the second diaphragm, cut several temporary support rods. Then, keep the temporary support rods in an inclined state and weld them between the second diaphragm and the top plate of the assembly. The temporary support rods are distributed on both sides of the second diaphragm.

[0030] (4) Place the single curved plate at the corresponding position on the top plate of the assembly. The curved plate is supported on the second transverse partition. Then weld the connecting plate between the top plate of the assembly and the curved plate to limit the connection between the top plate of the assembly and the curved plate. Then cut the second temporary support rod according to the distance between the corresponding curved plate and the top plate of the assembly. Then weld the second temporary support rod between the top plate of the assembly and the curved plate to complete the positioning and installation of the single curved plate. Then install the curved plates one by one along the length of the assembly frame using the same positioning and installation method as the single curved plate described above. Then weld the curved plate and the top plate of the assembly to fix them.

[0031] (5) Two adjacent curved plates are spliced ​​together. At this time, a weld seam 1 is formed between the outer surfaces of the two adjacent curved plates, and a weld seam 2 is formed between the inner surfaces of the two adjacent curved plates. According to the curvature of the curved plate, the corresponding horse plate is processed. The horse plate has a groove. The corresponding horse plate is welded on the outer surface of the two adjacent curved plates. The weld seam 1 passes through the groove. Then, it is welded at one weld seam and then welded at the second weld seam. Then, the curved plate 24 and the transverse diaphragm 2 8 are welded and fixed. The curved plate forms a side web plate.

[0032] (6) Remove the horse board, then remove temporary support rod one and temporary support rod two, and then remove the fixing plate and connecting plate;

[0033] (7) Weld stiffening plates to the inner surface of the side web.

[0034] Furthermore, before using a flame cutting machine to cut the steel plate, the steel plate is placed on the rotating rollers of a roller bed. The rotating rollers rotate in the roller bed, which facilitates the feeding and cutting of the steel plate.

[0035] Furthermore, a semi-automatic flame cutting machine is used to bevele the steel plate unit. A connecting arm with a fixed mounting bracket is used on the semi-automatic flame cutting machine. The connecting arm is equipped with rollers. When the rollers are in contact with the edge of the steel plate unit, the fixed bracket is tightened, and the rollers move along the edge of the steel plate unit, allowing the semi-automatic flame cutting machine to advance and bevel the edge of the steel plate unit. The beveling angle of the semi-automatic flame cutting machine depends on the curvature. At locations with high curvature, where the steel plate cutting unit is narrower, a larger beveling angle is achieved, thus addressing the issue of large curvature bends.

[0036] Furthermore, a bending machine is used to bend each steel plate unit. The bending machine has two pressure rollers, one above the other, with a gap between them. The steel plate unit is placed into the gap, and an upward force is applied, causing the steel plate unit to bend under the action of the pressure rollers. The bending machine solves the problem of vertical bending, bending each pre-divided steel plate unit of different dimensions using a cold bending process.

[0037] Furthermore, the curvature of the steel plate bent by the bending machine is controlled by adjusting the curvature using a mold. After the bending machine bends the steel plate unit, a mold with the set curvature is placed on the bent steel plate unit. By observing the distance between the mold and the steel plate unit, the bending curvature of the bending machine on the steel plate unit is adjusted.

[0038] Furthermore, the cylinder at the bottom of the assembly frame is welded to the top surface of the platform, creating a space between the assembly frame and the platform. At this point, the assembly frame has a second through hole, which connects to the space. A base and a support are then placed on the ground, and the platform's pivot is installed on the base, allowing the platform to rotate on the base. The support is connected to a cylinder, which is connected to the ear plate at the bottom of the platform.

[0039] When welding at one weld seam, the cylinder is not turned on. At this time, the platform is set horizontally on the base and support. After the first weld seam is completed, the bent plate is temporarily fixed to the assembly platform with steel wire rope. The steel wire rope passes through the second through hole and is tied to the assembly platform. Then, the top plate of the assembly body and the assembly platform are spot welded.

[0040] When welding is required at the second weld, the cylinder is activated, and the cylinder controls the platform to rotate at a set angle on the base, so that the platform and the assembly stand are tilted, so that the opening formed by the bent plate and the top plate is tilted upward. Then, welding is performed at the second weld, and the bent plate forms a side web plate. After welding is completed, the cylinder is controlled to return to the initial position. At this time, the platform is horizontally set on the base and support. Then, the wire rope is removed, and the top plate of the assembly is cut off from the assembly stand.

[0041] This avoids the incomplete welding at the second weld joint, and also facilitates the removal of waste generated during the welding process, thus improving welding safety.

[0042] Furthermore, a mounting base is fixed on the ground. The mounting base has a load-bearing steel plate, which rotates on the mounting base via a rotating rod. The load-bearing steel plate has a stress-bearing section, and the platform is supported between the load-bearing steel plate and the stress-bearing section. When the platform is set horizontally or at an angle, a locking nut is screwed into the rotating rod and locked onto the mounting base. When the cylinder controls the platform to rotate on the base, the locking nut is unscrewed from the rotating rod. This provides support for the platform during rotation, reduces the force on the cylinder, improves the platform's load-bearing capacity, and meets the requirements for processing heavier side assembly parts.

[0043] The present invention, by adopting the above-described technical solution, has the following beneficial effects:

[0044] The cross-sectional area of ​​the rear end of the pedestrian overpass of this invention is larger than that of the front end, and the area of ​​the top surface of the pedestrian overpass is larger than that of the bottom surface. While ensuring that the space occupied at the bottom of the pedestrian overpass is small, it can increase the passage area for pedestrians and vehicles, realize the complete separation of pedestrians and vehicle traffic, ensure the safety of pedestrians, and make the movement of vehicles smoother. It not only solves the problem of urban planning connection, but also adds to the aesthetics of the city.

[0045] The side web plate in the side assembly has a hyperbolic feature, which achieves the effect of bending at different angles in space, thus realizing the unique structure of the pedestrian bridge of the present invention.

[0046] To reduce processing difficulty, this invention cuts the material according to the dimensions of each splicing unit, dividing the side web into multiple splicing units. This transforms the splicing unit from a curved structure into a planar structure, solving the problem of lateral bending. Then, each steel plate unit is bent to solve the problem of vertical bending, thus accurately obtaining the hyperbolic side web of the required specifications.

[0047] Considering the hyperbolic shape of the side web plate and its large weight, the present invention uses a second transverse diaphragm plate fixed between the top plate and the side web plate of the assembly to increase the strength between the top plate and the side web plate of the assembly, so that the side web plate is not easily deformed, maintains the set shape, and facilitates the fixing of the side web plate between the top plate and the bottom plate of the assembly.

[0048] Furthermore, the present invention positions and installs the side web plate and the second transverse diaphragm, improving the processing quality of the side assembly and ensuring that the shape and strength of the side assembly meet the design requirements. Attached Figure Description

[0049] The present invention will be further described below with reference to the accompanying drawings:

[0050] Figure 1 This is a schematic diagram of the structure of an assembled pedestrian overpass according to the present invention;

[0051] Figure 2 for Figure 1 The main view;

[0052] Figure 3 This is a schematic diagram of the side assembly portion in this invention;

[0053] Figure 4 This is a schematic diagram of the side web plate in this invention;

[0054] Figure 5 for Figure 4 Top view;

[0055] Figure 6 This is a schematic diagram of the structure of the side web plate divided into units according to the present invention;

[0056] Figure 7 This is a schematic diagram of the structure of the present invention when cutting materials according to the dimensions of each segmented splicing unit;

[0057] Figure 8 This is a schematic diagram of the semi-automatic flame cutting machine in this invention;

[0058] Figure 9 This is a schematic diagram of the structure of the present invention when bending a steel plate unit in a bending machine;

[0059] Figure 10 This is a schematic diagram of the mold structure in this invention;

[0060] Figure 11 This is a schematic diagram of the assembly platform in this invention;

[0061] Figure 12 This is a schematic diagram of the structure in which the transverse partition is fixed to the top surface of the top plate of the assembly according to the present invention;

[0062] Figure 13 This is a structural schematic diagram of the welding fixing plate and temporary support rod of the present invention;

[0063] Figure 14 This is a schematic diagram of the structure of the welding connecting plate of the present invention;

[0064] Figure 15 This is a schematic diagram of the structure of the temporary support rod II during welding according to the present invention;

[0065] Figure 16 This is a schematic diagram of the structure of the welding plate of the present invention;

[0066] Figure 17 This is a schematic diagram of the structure of the horse plate in this invention.

[0067] Figure 18 This is a schematic diagram of the structure of the present invention in which the bent plate is temporarily fixed to the assembly platform using steel wire rope;

[0068] Figure 19 This is a schematic diagram of the structure of the present invention, which uses a cylinder to control the platform to rotate at a set angle on the base;

[0069] Figure 20 This is a schematic diagram of the assembly frame welded onto the platform in this invention;

[0070] Figure 21 This is a schematic diagram of the connection between the mounting base and the load-bearing steel plate in this invention.

[0071] In the diagram, 1-Main body; 2-Side assembly; 3-Main body top plate; 4-Main body bottom plate; 5-Main body web plate; 6-Transverse diaphragm one; 7-Assembly top plate; 8-Transverse diaphragm two; 9-Side web plate; 10-End face one; 11-End face two; 12-Stiffening plate; 13-Through hole one; 14-Rolling bed; 15-Rotating roller; 16-Steel plate unit; 17-Semi-automatic flame cutting machine; 18-Connecting arm; 19-Roller; 20-Fixing component; 21-Bending machine; 22-Pressure roller one; 23-Pressure roller two; 24-Bent plate ; 25-Mold; 26-Assembly frame; 27-Cylinder; 28-Through hole two; 29-Fixing plate; 30-Temporary support rod one; 31-Connecting plate; 32-Weld one; 33-Temporary support rod two; 34-Holding plate; 35-Slot; 36-Weld two; 37-Support seat; 38-Assembly unit; 39-Cylinder; 40-Ear plate; 41-Base; 42-Platform; 43-Wire rope; 44-Shaft; 45-Mounting seat; 46-Resistant steel plate; 47-Resistant part; 48-Rotating rod; 49-Locking nut. Detailed Implementation

[0072] like Figures 1 to 21 As shown, this invention provides an assembled pedestrian bridge, comprising a main body 1 and side assembly parts 2.

[0073] The main body 1 includes a main top plate 3, a main bottom plate 4, a main web plate 5, and a transverse diaphragm 6. The main top plate 3 and the main bottom plate 4 are distributed vertically. The main web plate 5 is fixed between the main top plate 3 and the main bottom plate 4. The transverse diaphragm 6 is fixed between the main top plate 3, the main bottom plate 4, and the main web plate 5.

[0074] The side assembly part 2 includes an assembly top plate 7, a second transverse partition 8, and a side web plate 9. The second transverse partition 8 is fixed between the assembly top plate 7 and the side web plate 9. The assembly top plate 7 is fixedly connected to the main body top plate 3, and the side web plate 9 is fixed between the assembly top plate 7 and the main body bottom plate 4.

[0075] The front side of the side web plate 9 is end face 10, and the rear side of the side web plate 9 is end face 21. The side web plate 9 bends along end face 10 to end face 21, which is the transverse bend of the side web plate 9. At the same time, the side web plate 9 bends from top to bottom, which is the vertical bend of the side web plate 9.

[0076] Both the first diaphragm 6 and the second diaphragm 8 are provided with through holes 13, which can appropriately reduce the amount of steel used in the first diaphragm 6 and the second diaphragm 8, and reduce the weight of the main body 1 and the side assembly 2. Both the main body 1 and the side assembly 2 are provided with stiffening plates 12 to increase the strength of the main body 1 and the side assembly 2.

[0077] The cross-sectional area of ​​the rear end of the pedestrian overpass of this invention is larger than that of the front end, and the area of ​​the top surface of the pedestrian overpass is larger than that of the bottom surface. While ensuring that the space occupied at the bottom of the pedestrian overpass is small, it can increase the passage area for pedestrians and vehicles, realize the complete separation of pedestrians and vehicle traffic, ensure the safety of pedestrians, and make the movement of vehicles smoother. It not only solves the problem of urban planning connection, but also adds to the aesthetics of the city.

[0078] A method for processing the side assembly portion of a modular pedestrian overpass includes the following steps:

[0079] Step A: Divide the side web plate 9 into units to form several splicing units 38.

[0080] Step B: Cut the material according to the dimensions of each segmented splicing unit 38, so that the splicing unit 38 is transformed from a curved structure to a planar structure, thus solving the problem of lateral bending of the side web plate 9. The specific steps are as follows:

[0081] (1) Place the steel plate on the rotating roller 15 of the roller bed 14. The rotating roller 15 rotates in the roller bed 14. Then, according to the divided splicing unit 38, draw a pattern on the steel plate so that the splicing unit 38 is transformed from a curved structure to a planar structure.

[0082] (2) According to the pattern, the steel plate is cut with a flame cutting machine to obtain the required steel plate unit 16.

[0083] Step C: Beveling is performed on the steel plate units 16 of different sizes obtained from the cutting process. Specifically, a semi-automatic flame cutting machine 17 is used to bevele the steel plate units 16. A connecting arm 18 is mounted on the semi-automatic flame cutting machine 17 using a fixing component 20. The connecting arm 18 is equipped with rollers 19. When the rollers 19 are in contact with the edge of the steel plate unit 16, the fixing component 20 is tightened. The rollers 19 then move along the edge of the steel plate unit 16, allowing the semi-automatic flame cutting machine 17 to advance and bevele the edge of the steel plate unit 16. The beveling angle of the semi-automatic flame cutting machine 17 depends on the curvature. At locations with high curvature, the steel plate cutting unit is narrower, resulting in a larger beveling angle, thus addressing the issue of large curvature bends.

[0084] Step D: Bending each steel plate unit 16: A bending machine 21 is used to bend each steel plate unit 16. The bending machine 21 has a first pressure roller 22 and a second pressure roller 23. The first pressure roller 22 is positioned above the second pressure roller 23, and there is a gap between them. The steel plate unit 16 is placed into the gap, and an upward force is applied to it, causing it to bend under the action of the first and second pressure rollers. The bending machine 21 solves the problem of vertical bending, bending each steel plate unit 16 of different sizes using a cold bending process.

[0085] Next, the curvature of the bent steel plate unit 16 is controlled by adjusting the curvature using the method of controlling the curvature of the steel plate bent by the bending machine 21 and the curvature of the mold 25. After the bending machine 21 bends the steel plate unit 16, the mold 25 with the set curvature is placed on the bent steel plate unit 16. By observing the size of the distance between the mold 25 and the steel plate unit 16, the bending curvature of the bending machine on the steel plate unit 16 is adjusted.

[0086] This allows the steel plate unit 16 to be processed into a curved plate 24, solving the problem of vertical bending of the side web plate 9.

[0087] Step E: Assemble and install the 24 sets of bent panels:

[0088] (1) Set the assembly platform 26 horizontally, then process the assembly top plate 7 according to the design drawings, and then place the assembly top plate 7 horizontally on the assembly platform 26.

[0089] (2) The second transverse partition 8 is fabricated according to the design drawings, and then the second transverse partition 8 is positioned and welded to the top surface of the top plate 7 of the assembly according to the installation position shown in the drawings. Considering the hyperbolic shape of the side web plate 9 and its large weight, the present invention uses the second transverse partition 8 to fix between the top plate 7 and the side web plate 9 of the assembly, thereby increasing the strength between the top plate 7 and the side web plate 9 of the assembly, making the side web plate 9 less prone to deformation and maintaining the set shape.

[0090] (3) Considering that the thickness of the second diaphragm 8 is relatively thin, cracks are likely to appear at the weld between the second diaphragm 8 and the top plate 7 of the assembly when the bending plate is installed later. To address this technical problem, a fixing plate 29 is welded between the second diaphragm 8 and the top plate 7 of the assembly. The fixing plates 29 are distributed on both sides of the second diaphragm 8, with two fixing plates 29 on the same side of each second diaphragm 8. Then, according to the height of the second diaphragm 8, several temporary support rods 30 are cut, and then the temporary support rods 30 are welded between the second diaphragm 8 and the top plate 7 of the assembly while maintaining an inclined state. The temporary support rods 30 are distributed on both sides of the second diaphragm 8 to improve the load-bearing capacity of the second diaphragm 8 and meet the requirements for welding between the bending plates 24 later.

[0091] (4) Considering the special shape of the curved plate 24, a single curved plate 24 is placed at the corresponding position on the top plate 7 of the assembly. The curved plate 24 is supported on the second transverse partition 8. Then, a connecting plate 31 is welded between the top plate 7 of the assembly and the curved plate 24 to limit the connection between the top plate 7 of the assembly and the curved plate 24, which can increase the integrity and firmness of the subsequent welding between the top plate 7 of the assembly and the curved plate 24. Then, according to the distance between the corresponding curved plate 24 and the top plate 7 of the assembly, a temporary support rod 23 is cut. Then, the temporary support rod 23 is welded between the top plate 7 of the assembly and the curved plate 24 to complete the positioning and installation of the single curved plate 24, increase the load-bearing capacity of the curved plate 24, and facilitate the rapid welding of two adjacent curved plates 24 in the later stage. Then, along the length direction of the assembly frame 26, the same positioning and installation method of the single curved plate 24 is used to install the curved plates 24 one by one, and then the curved plates 24 are welded and fixed to the top plate 7 of the assembly.

[0092] (5) Two adjacent curved plates 24 are spliced ​​together. At this time, a weld seam 32 is formed between the outer surfaces of the two adjacent curved plates 24, and a weld seam 36 is formed between the inner surfaces of the two adjacent curved plates 24. According to the curvature of the curved plate 24, a corresponding diaphragm plate 34 is processed. The diaphragm plate 34 is provided with a groove 35. The corresponding diaphragm plate 34 is welded on the outer surfaces of the two adjacent curved plates 24. The weld seam 32 passes through the groove 35. Then, the weld seam 32 is welded, and then the weld seam 36 is welded. Then, the curved plate 24 and the transverse diaphragm 8 are welded and fixed. The curved plate 24 forms a side web plate 9.

[0093] (6) Remove the horse plate 34, then remove the temporary support rod 1 30 and the temporary support rod 2 33, and then remove the fixing plate 29 and the connecting plate 31.

[0094] (7) Weld stiffening plate 12 to the inner surface of side web 9.

[0095] Based on the embodiment of the processing method for the side assembly part 2 described above, another embodiment is designed:

[0096] Considering that when the side assembly part 2 is placed horizontally, during the welding process at weld 36, the construction workers need to weld overhead, making it difficult to fully weld weld 36. This reduces the connection strength between the two adjacent bent plates 24, and during welding, waste material can easily fall onto the construction workers, creating a safety hazard. To address the above technical problems, this invention specifically designs the welding method for weld 36 as follows:

[0097] The cylinder 27 at the bottom of the assembly platform 26 is welded to the top surface of the platform 42, creating a space between the assembly platform 26 and the platform 42. The assembly platform 26 has a second through hole 28, which communicates with the space. A base 41 and a support 37 are then installed on the ground. The pivot 44 of the platform 42 is mounted on the base 41, allowing the platform 42 to rotate on the base 41. A cylinder 39 is connected to the support 37, and the cylinder 39 is connected to the ear plate 40 at the bottom of the platform 42.

[0098] When welding at weld 32, cylinder 39 is not activated. At this time, platform 42 is horizontally set on base 41 and support 37. After weld 32 is completed, bending plate 24 is temporarily fixed to assembly frame 26 with steel wire rope 43. Steel wire rope 43 passes through through hole 28 and is tied to assembly frame 26. Then, the top plate 7 of the assembly body and assembly frame 26 are spot welded to fix the heavier top plate 7 of the assembly body and bending plate 24 to assembly frame 26, making it less likely to tip over.

[0099] When welding is required at weld seam 36, cylinder 39 is activated. Cylinder 39 controls platform 42 to rotate at a set angle on base 41, causing platform 42 and assembly frame 26 to be tilted, so that the opening formed by bending plate 24 and assembly top plate 7 is tilted upward. Then, welding is performed at weld seam 36. Next, bending plate 24 and diaphragm 2 8 are welded and fixed. Bending plate 24 forms side web plate 9. After welding is completed, control cylinder 39 to return to the initial position. At this time, platform 42 is horizontally set on base 41 and support 37. Then, wire rope 43 is removed, and assembly top plate 7 is cut off from assembly frame 26.

[0100] This avoids overhead welding at weld 236, which would prevent the weld 236 from being fully welded. It also avoids overhead welding of bent plate 24 and transverse diaphragm 28, which would prevent the connection from being fully welded. In addition, it facilitates the removal of waste generated during the welding process and improves the safety of welding.

[0101] To increase the load-bearing capacity of platform 42, a mounting base 45 is fixed on the ground. Mounting base 45 has a load-bearing steel plate 46, which rotates on mounting base 45 via a rotating rod 48. The load-bearing steel plate 46 has a force-bearing part 47, and platform 42 is supported between the load-bearing steel plate 46 and the force-bearing part 47. When platform 42 is set horizontally or at an angle, a locking nut 49 is screwed into the rotating rod 48 and locked onto mounting base 45. When cylinder 39 controls platform 42 to rotate on base 41, locking nut 49 is unscrewed from rotating rod 48. This supports platform 42, reduces the force on cylinder 39, and increases the load-bearing capacity of platform 42, meeting the processing requirements of the heavier side assembly part 2.

[0102] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.

Claims

1. A method for processing the side assembly portion of an assembled pedestrian bridge, the assembled pedestrian bridge comprising a main body and a side assembly portion, the main body comprising a main top plate, a main bottom plate, a main web plate and a first transverse diaphragm plate, the main top plate and the main bottom plate being distributed vertically, the main web plate being fixed between the main top plate and the main bottom plate, the first transverse diaphragm plate being fixed between the main top plate, the main bottom plate and the main web plate, the side assembly portion comprising an assembly top plate, a second transverse diaphragm plate and a side web plate, the second transverse diaphragm plate being fixed between the assembly top plate and the side web plate, the assembly top plate and the main top plate being fixedly connected, the side web plate being fixed between the assembly top plate and the main bottom plate, the front side of the side web plate being an end face one, the rear side of the side web plate being an end face two, the side web plate bending along the direction of the first end face towards the second end face, and simultaneously bending from top to bottom, both the main body and the side assembly portion being provided with stiffening plates; Its features are, Includes the following steps: Step A: Divide the side web into units to form several splicing units; Step B: Cut the materials according to the dimensions of each divided splicing unit: (1) Draw patterns on the steel plate according to the divided splicing units so that the splicing units are transformed from curved structures to planar structures; (2) According to the pattern, the steel plate is cut with a flame cutting machine to obtain the required steel plate unit; Step C: Beveling the steel plate units of different sizes obtained from the cutting process; Step D: Bend each steel plate unit and control the curvature of the bent steel plate unit to form a bent plate; Step E: Assemble and install the bent panels: (1) Set the assembly platform horizontally, process the top plate of the assembly according to the design drawings, and then place the top plate of the assembly horizontally on the assembly platform. (2) The second transverse partition is fabricated according to the design drawings, and then the second transverse partition is positioned and welded to the top surface of the top plate of the assembly according to the installation position shown in the drawings; (3) Weld a fixing plate between the second diaphragm and the top plate of the assembly. The fixing plate is distributed on both sides of the second diaphragm. Then, according to the height of the second diaphragm, cut several temporary support rods. Then, keep the temporary support rods in an inclined state and weld them between the second diaphragm and the top plate of the assembly. The temporary support rods are distributed on both sides of the second diaphragm. (4) Place the single curved plate at the corresponding position on the top plate of the assembly. The curved plate is supported on the second transverse partition. Then weld the connecting plate between the top plate of the assembly and the curved plate to limit the connection between the top plate of the assembly and the curved plate. Then cut the second temporary support rod according to the distance between the corresponding curved plate and the top plate of the assembly. Then weld the second temporary support rod between the top plate of the assembly and the curved plate to complete the positioning and installation of the single curved plate. Then install the curved plates one by one along the length of the assembly frame using the same positioning and installation method as the single curved plate described above. Then weld the curved plate and the top plate of the assembly to fix them. (5) Two adjacent curved plates are spliced ​​together. At this time, a weld seam 1 is formed between the outer surfaces of the two adjacent curved plates, and a weld seam 2 is formed between the inner surfaces of the two adjacent curved plates. According to the curvature of the curved plate, the corresponding diaphragm plate is processed. The diaphragm plate has a groove. The corresponding diaphragm plate is welded on the outer surface of the two adjacent curved plates. Weld seam 1 passes through the groove. Then weld at one weld seam and then weld at the second weld seam. Then weld the curved plate and the diaphragm plate 2 to fix it. The curved plate forms the side web plate. (6) Remove the horse board, then remove temporary support rod one and temporary support rod two, and then remove the fixing plate and connecting plate; (7) Weld stiffening plates to the inner surface of the side webs; The assembly platform is assembled by welding the cylinder at the bottom to the top surface of the platform, creating a space between the assembly platform and the platform. The assembly platform has a through hole 2 that connects to the space. A base and a support are then installed on the ground. The platform's pivot is installed on the base, allowing the platform to rotate on the base. The support is connected to a cylinder, which is connected to the ear plate at the bottom of the platform. When welding at one weld seam, the cylinder is not activated. At this time, the platform is horizontally set on the base and support. After the first weld seam is completed, the bent plate is temporarily fixed to the assembly frame with steel wire rope. The steel wire rope passes through the second through hole and is tied to the assembly frame. Then, the top plate of the assembly body and the assembly frame are spot welded. When welding is required at the second weld seam, the cylinder is activated. The cylinder controls the platform to rotate at a set angle on the base, so that the platform and the assembly frame are tilted, so that the opening formed by the bent plate and the top plate of the assembly body is tilted upward. Then, the second weld seam is welded, and the bent plate and the second transverse partition are welded and fixed. The bent plate forms the side web plate. After the welding is completed, the cylinder is controlled to return to the initial position. At this time, the platform is horizontally set on the base and support. Then, the steel wire rope is removed, and the top plate of the assembly body is cut off from the assembly frame.

2. The method for processing the side assembly portion of a prefabricated pedestrian bridge according to claim 1, characterized in that: Before cutting the steel plate with a flame cutting machine, the steel plate is placed on the rotating rollers of a roller bed, and the rotating rollers rotate in the roller bed.

3. The method for processing the side assembly portion of a prefabricated pedestrian bridge according to claim 1, characterized in that: A semi-automatic flame cutting machine is used to bevel the steel plate unit. At this time, a connecting arm is installed on the semi-automatic flame cutting machine with a fixing component. The connecting arm is equipped with rollers. When the rollers are in contact with the edge of the steel plate unit, the fixing component is tightened. The rollers move along the edge of the steel plate unit, allowing the semi-automatic flame cutting machine to move forward and bevel the edge of the steel plate unit.

4. The method for processing the side assembly portion of a prefabricated pedestrian bridge according to claim 1, characterized in that: Each steel plate unit is bent using a bending machine. The bending machine is equipped with a pressure roller one and a pressure roller two. Pressure roller one is located above pressure roller two, and there is a gap between pressure roller one and pressure roller two. The steel plate unit is placed into the gap, and an upward force is applied to the steel plate unit, so that the steel plate unit is bent under the action of pressure roller one and pressure roller two.

5. The method for processing the side assembly portion of a prefabricated pedestrian bridge according to claim 1, characterized in that: A mounting base is fixed on the ground. The mounting base is equipped with a load-bearing steel plate. The load-bearing steel plate rotates on the mounting base via a rotating rod. The load-bearing steel plate is equipped with a load-bearing part. The platform is supported between the load-bearing steel plate and the load-bearing part. When the platform is set horizontally or tilted, screw the lock nut into the rotating rod and lock the lock nut onto the mounting base; When the cylinder control platform rotates on the base, unscrew the lock nut from the rotating rod.

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