Box-groove type composite beam manufacturing device and manufacturing method thereof

Abstract

The application provides a box-groove type composite beam manufacturing device and a manufacturing method thereof, and the method comprises the following steps: manufacturing a longitudinal box-groove type composite beam; and designing a composite beam assembling and welding device to ensure the quality and precision of the box-groove type composite beam, wherein the device is composed of an H-shaped steel platform, a supporting pier, an abutting weld adjusting column, an anti-toppling column, a top-tightening screw rod and the like, a top plate position reference line is drawn on the H-shaped steel platform, and the supporting pier is arranged on the H-shaped steel platform and is welded and connected with the H-shaped steel platform. The box-groove type composite beam manufacturing method provided by the application solves the problems of great assembling difficulty and difficult precision control of the super-high and narrow box composite beam by once assembling and welding the super-high and narrow box composite beam into a shape through a "side-lying" method, so that the manufacturing precision and quality of the super-high and narrow box composite beam are improved.

Description

Technical Field

[0001] This invention relates to the field of steel bridge trough-type composite beam manufacturing, and in particular to a box-trough-type composite beam manufacturing device and manufacturing method. Background Technology

[0002] Bridge steel is a type of steel plate specifically designed for constructing railway or highway bridges. It requires high strength and toughness, as well as the ability to withstand the loads and impacts of locomotives and rolling stock, along with good fatigue resistance, certain low-temperature toughness, and resistance to atmospheric corrosion.

[0003] With the development of steel bridge construction technology at home and abroad, long-span steel bridges and conventional-span steel-concrete composite beams have been widely promoted and applied. Conventional-span steel-concrete composite beams mostly use steel plate beams or trough beams. In recent years, designers have considered using box-trough composite beams to realize the construction of long-span continuous beams. Compared with the trough structure of conventional-span steel-concrete composite beams, long-span trough composite beams have higher height (≥4.7m) and narrower width (≤2m), making them more difficult to manufacture and harder to control in terms of precision.

[0004] Therefore, it is necessary to provide a device and method for manufacturing box-type composite beams to solve the above-mentioned technical problems. Summary of the Invention

[0005] This invention provides a box-and-trough composite beam manufacturing device and method, which solves the problem that conventional span steel-concrete composite beams mostly use steel plate beams or trough beams, while the development of large-span continuous composite beams is relatively lagging behind.

[0006] To solve the above-mentioned technical problems, the present invention provides a box-type composite beam manufacturing device, comprising a manufacturing device and a composite beam. The manufacturing device includes an H-shaped steel platform, support piers, butt weld adjustment columns, anti-tipping columns, and tightening screws. A baseline for the top plate position is marked on the H-shaped steel platform. The support piers are arranged on the H-shaped steel platform and welded to it. The anti-tipping columns are steel structures and welded to the H-shaped steel platform. The tightening screws are welded to the anti-tipping columns to prevent the bottom plate unit from tipping over and to provide a tightening function. The composite beam includes a top plate unit, an upper web plate unit, a lower web plate unit, a bottom plate unit, a transverse diaphragm unit, a transverse rib unit, and a transverse beam joint unit, which are assembled and welded into a composite beam on a fabrication device.

[0007] The present invention provides a method for manufacturing a box-type composite beam, comprising the following steps: S1. Fabrication of longitudinal box-type composite beams; S11. To ensure the manufacturing quality and precision of the box-type composite beam, a composite beam assembly and welding device is designed and manufactured. This device consists of an H-beam platform, support piers, butt weld adjustment columns, anti-tipping columns, and tightening screws. S12. Draw the baseline for the top plate position on the H-beam platform; S13. The support piers are arranged on the H-shaped steel platform and welded to the H-shaped steel platform. S14. The anti-deformation support is made of steel, with a height of support pier height + 30mm. It is arranged on both sides of the web butt weld and welded to the H-beam platform. S15. The anti-tipping column is a steel structure, which is welded to the H-shaped steel platform. The tightening screw is welded to the anti-tipping column to prevent the base plate unit from tipping over and to provide a tightening function. S2, Fabrication of transverse box-type composite beams; The box-type composite beam consists of a top plate unit, an upper web plate unit, a lower web plate unit, a bottom plate unit, a transverse diaphragm unit, a transverse rib unit, and a transverse beam joint unit. It is assembled and welded into a box-type composite beam on a fabrication device. S21. Assemble and weld the top plate unit and the upper web plate unit into a web plate "T-shaped" assembly; S22. Lay the "T-shaped" assembly of one side of the web plate on the assembly and manufacturing device, with the distance between the two ends of the top plate unit 11 and the baseline on the manufacturing device being equal; S23. Using the web plate "T-shaped" assembly as a reference, align and assemble the lower web plate unit, adjust the welding reverse deformation angle of the web plate "T-shaped" assembly and the lower web plate unit, then temporarily weld the connection with a plate, and then weld the weld seam with a semi-automatic welding trolley. After welding, repair the welding deformation to ensure the overall flatness of the web plate unit. S24. Draw the diaphragm assembly position lines on the web unit, assemble the diaphragms, and focus on controlling the verticality of the diaphragms. S25. Assemble the web plate "T-shaped" assembly and the lower web plate unit on the other side. First, weld the web plate unit to the diaphragm, and then weld the butt weld of the web plate "T-shaped" assembly and the lower web plate unit. S26. Assemble the horizontal and vertical stiffening ribs according to the line. First, weld the stiffening ribs to the curved plate, and then weld the vertical welds between the horizontal and vertical stiffening ribs to reduce welding deformation. The transverse diaphragm can act as a temporary support plate. S27. Assemble the base plate unit, tighten the base plate unit by using the screw on the anti-tipping column, and then weld the base plate unit to the diaphragm and web. After the S28 trough-shaped composite beam is welded, it is turned 90° so that the bottom plate faces down, and then the transverse rib unit is assembled and welded.

[0008] Preferably, the plurality of H-beam steel platforms in S12 are arranged at 1.5m intervals.

[0009] Preferably, the height of the support pier in S13 is 500mm to 700mm, and the top surface elevation is ≤2mm.

[0010] Preferably, the height of the transverse box-type composite beam in S2 is ≥4.7m and the width is ≤2m.

[0011] Preferably, the segment height of the S1 longitudinal box-type composite beam is ≥4.7m and the width is ≤2m.

[0012] Preferably, a fixing assembly is provided between the support pier and the upper web unit and the lower web unit. The fixing assembly includes a fixing seat, and a threaded rod is provided inside the fixing seat. A connecting hole adapted to the threaded rod is opened inside the upper web unit or the lower web unit.

[0013] Preferably, the surface of the threaded rod is threaded with a threaded sleeve.

[0014] Preferably, the threaded rod is provided with a limiting component inside, the limiting component including a through hole, and a limiting bolt is provided inside the through hole.

[0015] Preferably, the surface thread of the limiting bolt is connected to a limiting sleeve.

[0016] Preferably, the threaded rod and the threaded sleeve act to fix the support block to the upper web unit or the lower web unit.

[0017] Compared with related technologies, the box-type composite beam manufacturing device and method provided by the present invention have the following beneficial effects: This invention provides a method for manufacturing box-and-trough type composite beams. By using the "side-lying" method, ultra-high narrow box composite beams are assembled and welded in one go, solving the problems of high assembly difficulty and difficulty in controlling precision of ultra-high narrow box composite beams, thereby improving the manufacturing precision and quality of ultra-high narrow box composite beams. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a first embodiment of a box-type composite beam manufacturing device provided by the present invention; Figure 2 This is a structural schematic diagram of a box-and-trough composite beam. Figure 3 for Figure 2 A schematic diagram of the first installation structure of the box-type composite beam shown; Figure 4 for Figure 3 The diagram shows the second installation structure of the box-type composite beam. Figure 5 for Figure 4The diagram shows the third installation structure of the box-type composite beam. Figure 6 for Figure 5 The diagram shows the fourth installation structure of the box-type composite beam. Figure 7 for Figure 6 The diagram shows the fifth installation structure of the box-type composite beam. Figure 8 A three-dimensional structural diagram of the entire box-type composite beam installation; Figure 9 This is a structural schematic diagram of a second embodiment of a method for manufacturing a box-type composite beam provided by the present invention; Figure 10 for Figure 9 The enlarged schematic diagram of part A shown below; Figure 11 for Figure 10 The enlarged schematic diagram of part B is shown.

[0019] The following are the labels in the diagram: 1. H-beam platform, 2. Support pier, 3. Butt weld adjustment column, 4. Anti-tipping column, 5. Tightening screw, 6. Upper web plate unit, 7. Lower web plate unit, 9. Transverse rib unit, 10. Bottom plate unit, 11. Top plate unit, 12. Fixing component, 121. Fixing seat, 122. Threaded rod, 123. Threaded sleeve, 13. Limiting component, 131. Through hole, 132. Limiting bolt, 133. Limiting sleeve. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] First Embodiment

[0022] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 ,in, Figure 1 This is a schematic diagram of the structure of a first embodiment of a box-type composite beam manufacturing device provided by the present invention; Figure 2 This is a structural schematic diagram of a box-and-trough composite beam. Figure 3 for Figure 2 A schematic diagram of the first installation structure of the box-type composite beam shown; Figure 4 for Figure 3 The diagram shows the second installation structure of the box-type composite beam. Figure 5 for Figure 4 The diagram shows the third installation structure of the box-type composite beam. Figure 6 for Figure 5The diagram shows the fourth installation structure of the box-type composite beam. Figure 7 for Figure 6 The diagram shows the fifth installation structure of the box-type composite beam. Figure 8 A three-dimensional structural diagram of the installation of the box-type composite beam.

[0023] A box-type composite beam fabrication device includes a fabrication device and a composite beam. The fabrication device includes an H-shaped steel platform 1, support piers 2, butt weld adjustment columns 3, anti-tipping columns 4, and tightening screws 5. A baseline for the top plate position is marked on the H-shaped steel platform 1. The support piers 2 are arranged on the H-shaped steel platform 1 and welded to it. The anti-tipping columns 4 are steel structures and welded to the H-shaped steel platform 1. The tightening screws 5 are welded to the anti-tipping columns 4 to prevent the bottom plate unit from tipping over and to provide a tightening function. The composite beam includes a top plate unit 11, an upper web plate unit 6, a lower web plate unit 7, a bottom plate unit 10, a transverse diaphragm unit, a transverse rib unit 9, and a transverse beam joint unit, which are assembled and welded into a composite beam on a fabrication device.

[0024] A method for manufacturing a box-type composite beam includes the following steps: S1. Fabrication of longitudinal box-type composite beams; S11. To ensure the quality and precision of the box-type composite beam manufacturing, a composite beam assembly and welding device is designed and manufactured. This device consists of an H-beam platform 1, a support pier 2, a butt weld adjustment column 3, an anti-tipping column 4, and a tightening screw 5. S12. Draw the baseline for the top plate position on the H-beam platform 1; S13, Support pier 2 is arranged on H-beam steel platform 1 and welded to H-beam steel platform 1; S14. The anti-deformation support is made of steel, with a height of support pier 2 + 30mm. It is arranged on both sides of the web butt weld and welded to the H-beam platform 1. S15. The anti-tipping column 4 is a steel structure and is welded to the H-shaped steel platform 1. The tightening screw 5 is welded to the anti-tipping column 4 to prevent the base plate unit from tipping over and to provide a tightening function. S2, Fabrication of transverse box-type composite beams; The box-type composite beam consists of a top plate unit 11, an upper web plate unit 6, a lower web plate unit 7, a bottom plate unit 10, a transverse diaphragm unit, a transverse rib unit 9, and a transverse beam joint unit. It is assembled and welded into a box-type composite beam on a fabrication device. S21. Assemble and weld the top plate unit 11 and the upper web plate unit 6 into a web plate "T-shaped" assembly; S22. Lay the "T-shaped" assembly of one side of the web plate on the assembly and manufacturing device, with the distance between the two ends of the top plate unit 11 and the baseline on the manufacturing device being equal. S23. Using the web plate "T-shaped" assembly as a reference, align and assemble the lower web plate unit 6, adjust the welding anti-deformation angle of the web plate "T-shaped" assembly and the lower web plate unit 7, then temporarily weld the connection with a plate, and then weld the weld seam with a semi-automatic welding trolley. After welding, repair the welding deformation to ensure the overall flatness of the web plate unit. S24. Draw the diaphragm assembly position lines on the web unit, assemble the diaphragms, and focus on controlling the verticality of the diaphragms. S25. Assemble the web plate "T-shaped" assembly and the lower web plate unit on the other side. First, weld the web plate unit to the diaphragm, and then weld the butt weld of the web plate "T-shaped" assembly and the lower web plate unit. S26. Assemble the horizontal and vertical stiffening ribs according to the line. First, weld the stiffening ribs to the curved plate, and then weld the vertical welds between the horizontal and vertical stiffening ribs to reduce welding deformation. The transverse diaphragm can act as a temporary support plate. S27. Assemble the base plate unit, tighten the base plate unit by using the screw on the anti-tipping column, and then weld the base plate unit to the diaphragm and web. After the S28 trough-shaped composite beam is welded, it is turned 90° so that the bottom plate faces down, and then the transverse rib unit is assembled and welded.

[0025] In S12, the multiple H-beam steel platforms 1 are arranged at 1.5m intervals.

[0026] The height of the support pier 2 in S13 is 500mm to 700mm, and the top surface elevation is ≤2mm.

[0027] The height of the transverse box-and-trough composite beam in S2 is ≥4.7m and the width is ≤2m.

[0028] The segment height of the S1 longitudinal box-type composite beam is ≥4.7m and the width is ≤2m.

[0029] Step 1: Lay out H-shaped steel platforms 1 on the ground, with a height of 300mm to 400mm and a spacing of 1.5m to 2m.

[0030] Step 2: Weld support columns 2 on the H-beam platform according to the structural characteristics of the composite beam. The top surface elevation of the support columns is ≤2mm. They are used to support the web units. Weld adjustment columns 3 on the H-beam platform to adjust the height of the butt weld of the web units.

[0031] Step 3: Weld anti-tipping columns 4 onto the H-beam platform 1 to prevent the base plate unit from tipping over. Then weld tightening screws 5 onto the anti-tipping columns 4 to adjust the assembly gap between the base plate unit and the cross ribs.

[0032] Step 4: Place the upper web plate unit 6 and the lower web plate unit 7 on the support column. Adjust the welding reverse deformation by adjusting the column 3 through the weld seam. Adjust the welding reverse deformation angle of the butt weld of the web plate unit to between 2.5° and 3.5°. After the structural dimensions are qualified, proceed with welding.

[0033] Step 5: Using the assembly position line as a reference, assemble and weld the transverse ribs 8 on the web unit, focusing on controlling the verticality of the transverse ribs and the assembly gap ≤1mm.

[0034] Step 6: Assemble and weld the connecting plate 8 on the web unit for positioning the web unit on the other side.

[0035] Step 7: Assemble and weld the upper web plate unit 8 and the lower web plate unit 7 on the other side into a composite component. Using the width of the box girder as a reference (set to +4mm), assemble and weld the web plate unit composite component on the other side, focusing on controlling the outline dimensions of the composite beam.

[0036] Step 8: Hoist the base plate unit 10 to the installation position, and adjust the assembly gap between the base plate unit and the transverse rib to ≤2mm by using the anti-tipping column 4 and welding the tightening screw 5. After adjustment and positioning, weld the weld between the base plate unit and the web plate unit.

[0037] Step 9: After the trough-shaped composite beam is welded, it is turned 90° so that the bottom plate faces down, and then the transverse rib units are assembled and welded to form an ultra-high narrow box composite beam.

[0038] Compared with related technologies, the box-type composite beam manufacturing device and method provided by the present invention have the following beneficial effects: This invention provides a method for manufacturing box-and-trough type composite beams. By using the "side-lying" method, ultra-high narrow box composite beams are assembled and welded in one go, solving the problems of high assembly difficulty and difficulty in controlling precision of ultra-high narrow box composite beams, thereby improving the manufacturing precision and quality of ultra-high narrow box composite beams.

[0039] Second Embodiment

[0040] Please refer to the following: Figure 9 , Figure 10 and Figure 11 Based on the method for manufacturing a box-girder composite beam provided in the first embodiment of this application, the second embodiment of this application proposes another method for manufacturing a box-girder composite beam. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0041] Specifically, the difference in the method for manufacturing a box-type composite beam provided in the second embodiment of this application is that, in the method for manufacturing a box-type composite beam, a fixing component 12 is provided between the support pier 2 and the upper web unit 6 and the lower web unit 7. The fixing component 12 includes a fixing seat 121, and a threaded rod 122 is provided inside the fixing seat 121. A connecting hole adapted to the threaded rod 122 is opened inside the upper web unit 6 or the lower web unit 7.

[0042] The threaded rod 122 has a threaded sleeve 123 connected to its surface.

[0043] The threaded rod 122 is provided with a limiting component 13 inside, the limiting component 13 includes a through hole 131, and a limiting bolt 132 is provided inside the through hole 131.

[0044] The limiting bolt 132 has a threaded connection to a limiting sleeve 133.

[0045] The threaded rod 122 and the threaded sleeve 123 act to fix the support block 2 to the upper web unit 6 or the lower web unit 7.

[0046] The working principle of the box-type composite beam manufacturing device and method provided by the present invention is as follows: In use, when connecting the support pier 2 to the upper web plate unit 6 or the lower web plate unit 7, the threaded rod 122 is passed through the fixed seat 121 and the upper web plate unit 6 or the lower web plate unit 7, and then the threaded sleeve 123 is threadedly connected to the threaded rod 122.

[0047] After fixing the threaded rod 122, use the limit bolt 132 to pass through the through hole 131 inside the threaded rod 122 and use the limit sleeve 133 to thread it to the limit bolt 132.

[0048] Compared with related technologies, the method for manufacturing a box-type composite beam provided by the present invention has the following advantages: The present invention provides a method for manufacturing a box-type composite beam, which uses a fixing component 12 and a limiting component 13 to facilitate the connection and disassembly of the support pier 2 with the upper web unit 6 or the lower web unit 7.

[0049] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method for manufacturing a box-type composite beam, characterized in that, The following steps are included in the fabrication of box-type composite beams with a height ≥ 4.7m and a width ≤ 2m: S1. Fabrication of the composite beam assembly and welding device; S11. Fabricate a composite beam assembly and welding device, which consists of an H-beam platform (1), a support pier (2), a butt weld adjustment column (3), an anti-tipping column (4), and a tightening screw (5); wherein the height of the butt weld adjustment column (3) is the height of the support pier (2) + 30mm. S12. Mark the top plate position baseline on the H-beam platform (1), and install multiple H-beam platforms at 1.5m intervals; S13. The support pier (2) is arranged on the H-shaped steel platform (1) and welded to the H-shaped steel platform (1). The height of the support pier is 500mm~700mm and the top surface elevation is ≤2mm. S14, Butt weld adjustment column (3) is arranged on both sides of the butt weld of the web plate and welded to the H-beam platform; S15. The anti-tipping column (4) is a steel structure, which is welded to the H-shaped steel platform, and the tightening screw (5) is welded to the anti-tipping column. S2. Fabrication of box-type composite beams: The box-type composite beam consists of a top plate unit, an upper web plate unit, a lower web plate unit, a bottom plate unit, a transverse diaphragm unit, a transverse rib unit, and a transverse beam joint unit. It is assembled and welded into a trough-type composite beam on a composite beam assembly and welding device. S21. Assemble and weld the top plate unit (11) and the upper web plate unit (6) into a web plate "T" assembly; S22. Lay the "T-shaped" assembly of the web plate on one side onto the device, with the two ends of the top plate unit equidistant from the baseline; S23. Using the web plate "T-shaped" assembly as a reference, align and assemble the lower web plate unit (7). Adjust the column (3) through the butt weld to adjust the welding reverse deformation angle of the web plate "T-shaped" assembly and the lower web plate unit to 2.5°~3.5°. Then, use a temporary welding plate, then use a semi-automatic welding trolley to weld the weld, and then repair the welding deformation. S24. Draw the assembly position line of the transverse diaphragm unit on the web unit, assemble the transverse diaphragm unit, and control the verticality of the transverse diaphragm unit. S25. Assemble the other side of the web plate "T-shaped" assembly and the lower web plate unit. First, weld the weld between the web plate unit and the transverse diaphragm unit, and then weld the butt weld between the web plate "T-shaped" assembly and the lower web plate unit. S26. Assemble the horizontal and vertical stiffening ribs according to the line. First, weld the stiffening ribs to the web plate unit, and then weld the vertical welds between the horizontal and vertical stiffening ribs. The transverse diaphragm unit acts as a temporary support plate. S27. Assemble the base plate unit (10), tighten the base plate unit by tightening screws (5) on the anti-tipping column, and then weld the base plate unit to the diaphragm unit and the web unit. S28. After the trough-shaped composite beam is welded, it is turned 90° so that the bottom plate unit faces down, and then the transverse rib unit (9) is assembled and welded.

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