A novel fabrication and welding process for corrugated web steel beam structures

Abstract

This application relates to the technical field of steel beam fabrication, and in particular to a novel welding process for corrugated web steel beam structures, comprising the following steps: S1, welding preparation: cleaning the weld joints of each component of the steel beam to ensure welding quality; S2, welding: S2.1, locating welding: first, correcting the verticality of each component of the steel beam and then spot welding for fixation, using symmetrical locating welding; S2.2, formal welding: performing symmetrical full welding of the steel beam, using segmented welding, skip welding, or a combination of both to reduce welding deformation and welding misalignment; S3, cleaning and corrosion protection: cleaning the weld joints and then applying paint for corrosion protection. This application has the effect of improving the load-bearing capacity of bridges.

Description

Technical Field

[0001] This application relates to the technical field of steel beam fabrication, and in particular to a novel fabrication and welding process for corrugated web steel beam structures. Background Technology

[0002] Currently, in steel profiles, the side where flat steel, angle steel, bulb flat steel, and steel plates are welded together is considered the web. Webs are widely used in steel structure manufacturing, bridge engineering, shipbuilding, construction machinery, and equipment manufacturing. Steel box girders, widely used in the construction industry, are welded from two parallel opposing flange plates and two opposing steel web plates perpendicular to the flange plates. The steel web plates are often corrugated steel plates to meet the requirements of stability and shear bearing capacity.

[0003] In the process of developing this application, the inventors discovered at least the following problems in the technology: When welding the steel web and flange, the steel web and flange are generally joined together, and the welding is first positioned and then welded. The inventors found that when the steel web and flange are welded and positioned, the steel web is prone to tilting. After welding, the tilt angle becomes larger. When the steel beam is under load, the tilted steel web will have a force shift, resulting in a decrease in the load-bearing capacity of the steel beam. Summary of the Invention

[0004] In order to maintain the load-bearing capacity of the processed steel beams, this application provides a novel fabrication and welding process for corrugated web steel beam structures.

[0005] This application provides a novel fabrication and welding process for a corrugated web steel beam structure, employing the following technical solution:

[0006] A novel fabrication and welding process for corrugated web steel beam structures includes the following steps:

[0007] S1. Welding preparation: Clean the weld joints of each component to ensure weld quality.

[0008] S2, Welding,

[0009] S2.1 Positioning welding: First, the verticality of each component of the steel beam is corrected and then fixed by spot welding. Symmetrical positioning welding is used when fixing by spot welding.

[0010] S2.2 Formal welding: Symmetrical full welding of the steel beams is carried out, using segment welding, skip welding, or a combination of both to reduce welding deformation and welding offset;

[0011] S3. Cleaning and corrosion prevention: Clean the weld seams and then apply paint for corrosion prevention.

[0012] By adopting the above technical solution, when welding steel beams, the welding positions of each component are first derusted and painted. Then, according to the design dimensions and angles, they are positioned and welded, and the verticality is monitored at all times. Symmetrical spot welding is used to reduce the positional deviation of each component. Then, formal welding is carried out. During formal welding, symmetrical full welding, segment welding, skip welding, or even a combination of segment welding and skip welding are used to reduce welding deformation and component positional deviation during stress release. After welding, anti-corrosion painting is applied. By monitoring verticality and positioning welding, the positional deviation of each component can be reduced, ensuring that the position of each component is within the design standard. This allows each component to bear a balanced force under load, thereby maintaining the load-bearing capacity of the steel beam.

[0013] Optionally, the corrugated web steel beam in step S2 includes a flange plate, a first corrugated web plate, and a second corrugated web plate. Two flange plates are arranged in parallel, and two sets of the first corrugated web plate and two sets of the second corrugated web plate are arranged between the two flange plates. The first corrugated web plate and the second corrugated web plate are respectively connected to the two flange plates by welding.

[0014] By adopting the above technical solution, after welding the first corrugated web plate to the flange plate, the second corrugated web plate is installed and welded, and the other flange plate is welded. After the welding is completed through the above-mentioned operation steps, the steel beam forms a frame support. The setting of multiple first corrugated web plates and second corrugated web plates enhances the load-bearing capacity of the steel beam, further makes the force distribution more reasonable, and achieves the best load-bearing effect.

[0015] Optionally, the first and second corrugated webs of each group are symmetrically arranged to form a reinforced space for pouring concrete.

[0016] By adopting the above technical solution, the adjacent first and second corrugated webs form a reinforced space. After the bridge is spliced, concrete can be poured. The first and second corrugated webs can share the load, and the concrete pouring operation makes the support between the first and second corrugated webs more stable, thereby enabling the transfer of force between them, making the steel beam stronger and improving its load-bearing capacity.

[0017] Optionally, a positioning mechanism is provided on the flange plate. The positioning mechanism includes positioning blocks and insert blocks. Four positioning blocks are provided on the flange plate. Positioning slots are opened on the positioning blocks. The insert blocks are provided on both the first and second corrugated web plates. The insert blocks are inserted into the positioning slots.

[0018] By adopting the above technical solution, during welding, the inserts on the first wave web can be first inserted into the positioning slots, then spot welded for fixation, and then welded. The above steps are repeated for welding the second wave web. The positioning slots and inserts make the installation of the first and second wave webs simpler and faster, and at the same time make the first and second wave webs closer to the design requirements, reducing adjustment time, making the force distribution of the steel beam more reasonable, and thus maintaining the load-bearing capacity of the steel beam.

[0019] Optionally, a stabilizing mechanism is provided between the first and second wave-shaped webs in each group. The stabilizing mechanism includes a stabilizing plate. Multiple stabilizing plates are provided on the first wave-shaped web, and the side of the stabilizing plate away from the first wave-shaped web abuts against the second wave-shaped web.

[0020] By adopting the above technical solution, after the first wave web plate is welded, the second wave web plate is positioned and installed. The second wave web plate abuts against the stabilizing plate on the first wave web plate and is then welded and fixed. The stabilizing plate can reduce the distance between the second wave web plate and the first wave web plate from being too close, and it can also facilitate the auxiliary positioning of the second wave web plate, making the positioning and welding of the second wave web plate more convenient. At the same time, it can better transmit force, so that the force between the two can be shared, reducing the occurrence of single fractures.

[0021] Optionally, the stabilizing plate is provided with multiple overflow holes.

[0022] By adopting the above technical solution, during concrete pouring, the overflow hole allows the concrete to fully contact the first and second corrugated webs, thereby making the filling between them more compact.

[0023] Optionally, the stabilizing plate has a through hole, and the stabilizing mechanism further includes a bidirectional screw and a tension nut. The bidirectional screw passes through the through hole, and the tension nuts are threaded to both ends of the bidirectional screw. The two tension nuts abut against the first wave-shaped web and the second wave-shaped web, respectively.

[0024] By adopting the above technical solution, after the first and second waveform web plates are welded or before welding, a double-ended screw can be passed through the through hole, and then the tension nut can be rotated at both ends of the double-ended screw. Then, the tension nut is rotated so that the tension nut drives the first and second waveform web plates to move closer to each other and cooperate with the stabilizing plate, thereby reducing the deformation of the first and second waveform web plates.

[0025] Optionally, the tensioning nut is provided with a rotation groove, and the stabilizing mechanism further includes a stop block. The stop block is provided on both the first and second corrugated webs, and the stop block is used to restrict the rotation of the tensioning nut.

[0026] By adopting the above technical solution, after the bidirectional screw is passed through the through hole, the tension nut is threaded onto the bidirectional screw. Then, an electric wrench or a manual wrench is inserted into the rotating groove to drive the bidirectional screw to rotate. As the bidirectional screw rotates, the two tension nuts move closer to each other. The stop block limits the tension nuts, reducing the rotation of the tension nuts during the rotation of the bidirectional screw. This makes the fastening of the first and second wave-shaped web plates simpler and more convenient.

[0027] Optionally, the stabilizing mechanism further includes limiting blocks, two of which are rotatably connected to the bidirectional screw. The limiting blocks are slidably connected to the tensioning nut, and the two limiting blocks abut against the side walls of the first and second corrugated webs that are close to each other.

[0028] By adopting the above technical solution, after the bidirectional screw is passed through the through hole, the tensioning nut is threaded onto the bidirectional screw. Then, an electric wrench or a manual wrench is inserted into the rotating groove, which drives the bidirectional screw to rotate. As the bidirectional screw rotates, the two tensioning nuts move closer to each other. At the same time, the limiting block abuts against the inner wall of the first and second waveform webs that are close to each other and limits their movement. This reduces the deformation of the first and second waveform webs during the tightening of the tensioning nuts. The limiting block also reduces the likelihood of the first and second waveform webs getting too close together.

[0029] Optionally, during welding in step S2, a welding mechanism is used. The welding mechanism includes a rolling carriage, a welding torch, magnetic wheels, a suspension frame, suspension wheels, and a connecting assembly. The rolling carriage is equipped with four magnetic wheels, each with a built-in motor that attracts and rolls relative to the first or second wave-shaped web. The welding torch is mounted on the rolling carriage for welding the weld seam. The suspension frame is mounted on the first wave-shaped web via the connecting assembly, and the suspension wheels roll along the suspension frame.

[0030] By adopting the above technical solution, after the first wave web plate is welded, when welding the second wave web plate, the weld seam of the second wave web plate close to the first wave web plate is difficult to weld. The suspension frame is connected to the first and second wave web plates through the connecting assembly. Then, the magnetic suction wheel of the rolling trolley is attracted to the first wave web plate, and the suspension wheel is hung on the suspension frame so that the suspension wheel can roll along the suspension frame. Then, the rolling trolley and welding gun are started to weld the weld seam. Welding is carried out on the outside at the same time, and the welding speed is the same as the travel speed of the rolling trolley, so that the welding on both sides is synchronized, which further enhances the welding quality of the second wave web plate and further enhances the load-bearing capacity of the steel beam.

[0031] In summary, this application includes the following beneficial technical effects:

[0032] 1. When welding steel beams, the welding locations of each component are first derusted and painted. Then, according to the design dimensions and angles, they are positioned and welded, with verticality constantly monitored. Symmetrical spot welding is used to reduce the positional shift of each component before formal welding. During formal welding, symmetrical full welding, segment welding, skip welding, or even a combination of segment welding and skip welding are used to reduce welding deformation and component positional shift during stress release. After welding, a paint coating is applied for corrosion protection. By monitoring verticality and positioning the welding, the positional shift of each component can be reduced, ensuring that the component positions are within the design standards. This allows each component to bear load in a balanced manner, thereby maintaining the load-bearing capacity of the steel beam.

[0033] 2. After the first wave web plate is welded, the second wave web plate is positioned and installed. The second wave web plate abuts against the stabilizing plate on the first wave web plate and is then welded and fixed. The stabilizing plate can reduce the distance between the second wave web plate and the first wave web plate, and also facilitates the positioning of the second wave web plate, making the positioning and welding of the second wave web plate more convenient. At the same time, it can better transmit force, so that the force between the two can be distributed, reducing the occurrence of single fracture.

[0034] 3. After the first wave web plate is welded, when welding the second wave web plate, the weld seam of the second wave web plate close to the first wave web plate is difficult to weld. The suspension frame is connected to the first and second wave web plates through the connecting assembly. Then, the magnetic roller of the rolling trolley is attached to the first wave web plate, and the suspension roller is hung on the suspension frame so that the suspension roller can roll along the suspension frame. Then, the rolling trolley and welding gun are started to weld the seam. Welding is carried out on the outside at the same time, and the welding speed is the same as the travel speed of the rolling trolley, so that the welding on both sides is synchronized, which further enhances the welding quality of the second wave web plate and further enhances the load-bearing capacity of the steel beam. Attached Figure Description

[0035] Figure 1 This is a flowchart illustrating the fabrication and welding process of the novel corrugated web steel beam structure in this application embodiment;

[0036] Figure 2 This is a schematic diagram of the novel corrugated web steel beam structure in the embodiments of this application;

[0037] Figure 3 This is a front view of the steel beam structure in an embodiment of this application;

[0038] Figure 4 This is a schematic diagram of the stabilizing mechanism in the embodiments of this application;

[0039] Figure 5 This is a schematic diagram showing the location of the through holes in an embodiment of this application;

[0040] Figure 6 This is a diagram illustrating the arc-shaped groove in an embodiment of this application;

[0041] Figure 7 This is a schematic diagram showing the installation position of the welding mechanism in an embodiment of this application;

[0042] Figure 8 This is a schematic diagram of the welding mechanism in an embodiment of this application.

[0043] Reference numerals: 100, flange plate; 200, first corrugated web plate; 210, through hole; 300, second corrugated web plate; 400, positioning mechanism; 410, positioning block; 411, positioning slot; 420, insert block; 500, stabilizing mechanism; 510, stabilizing plate; 511, overflow hole; 520, double-acting screw; 521, rotating groove; 530, tensioning nut; 540, stop block; 550, limiting block; 551, arc groove; 560, synchronizing rod; 570, limiting rod; 580, limiting support ring; 600, welding mechanism; 610, rolling trolley; 620, welding torch; 630, magnetic suction wheel; 640, suspension frame; 650, suspension wheel; 660, connecting assembly; 661, connecting screw; 662, first fixing block; 663, second fixing block. Detailed Implementation

[0044] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail.

[0045] This application discloses a novel fabrication and welding process for corrugated web steel beam structures.

[0046] refer to Figure 1 The fabrication and welding process of the novel corrugated web steel beam structure includes the following steps:

[0047] S1. Welding preparation: Remove paint and rust from the weld joints of each component of the steel beam to ensure welding quality and reduce the generation of bubbles and slag inclusions during welding.

[0048] S2, Welding,

[0049] S2.1 Positioning welding: First, the verticality of each component of the corrugated web steel beam is corrected and then fixed by spot welding. Symmetrical positioning welding is used when spot welding to reduce the tilting of the component position caused by unilateral welding.

[0050] S2.2 Formal welding: Use welding equipment to perform symmetrical full welding on the corrugated web steel beam. Use segment welding, skip welding or a combination of both to reduce welding deformation and welding offset. Through segment welding and skip welding, symmetrical tension is achieved, while reducing overheating and stress release deformation.

[0051] S3. Cleaning and corrosion prevention: After welding, first clean the slag at the weld, then grind it with a wire brush, and then apply paint for corrosion prevention.

[0052] refer to Figure 2 The steel beam in step S1 includes two flange plates 100, two first corrugated web plates 200 welded between the two flange plates 100, and two second corrugated web plates 300 welded between the two flange plates 100. The two first corrugated web plates 200 correspond to the two second corrugated web plates 300 respectively, and the connected first corrugated web plates 200 and second corrugated web plates 300 form a reinforcement space for pouring concrete. During the actual use of the steel beam, concrete pouring can be carried out to reinforce the connection.

[0053] refer to Figure 2 and Figure 3 A positioning mechanism 400 is provided on the flange plate 100. The positioning mechanism 400 includes positioning blocks 410. Each flange plate 100 is fixedly connected to four positioning blocks 410. The installation position of the four positioning blocks 410 is determined according to the design requirements, and the position of the positioning blocks 410 is the installation position of the first wave web 200 and the second wave web 300. A positioning slot 411 is opened on the side wall of the positioning block 410 away from the flange plate 100. Each first wave web 200 and second wave web 300 is fixedly connected to a positioning insert 420. The positioning insert 420 is inserted into the positioning slot 411, then spot welded and fixed, and finally welded.

[0054] refer to Figure 3 and Figure 4To facilitate a stable connection between the various components of the steel beam and reduce positional displacement, a stabilizing mechanism 500 is provided on the first corrugated web 200. The stabilizing mechanism 500 includes multiple stabilizing plates 510 welded and fixed to the first corrugated web 200. The stabilizing plates 510 abut against the second corrugated web 300 and are used to limit the distance between the first corrugated web 200 and the second corrugated web 300. To facilitate the filling of the reinforced space with concrete during the actual bridge construction process, multiple overflow holes 511 are provided on the stabilizing plates 510 to facilitate the flow of concrete.

[0055] refer to Figure 5 and Figure 6 Both the first wave web 200 and the second wave web 300 are provided with through holes 210. The through holes 210 are opened along the width direction of the first wave web 200. The first wave web 200 and the second wave web 300, which are close to each other, are provided with bidirectional screws 520. One end of the bidirectional screw 520 passes through the through holes 210 on the first wave web 200 and the second wave web 300 in sequence. Both ends of the bidirectional screw 520 are respectively threaded with tension nuts 530. The tension nuts 530 are long strip nuts and can pass through the through holes 210. Multiple stop blocks 540 are fixedly connected to the sidewalls of the first waveform web 200 and the second waveform web 300 that are far apart from each other. The stop blocks 540 are in pairs and correspond to the tension nuts 530 respectively. The tension nuts 530 can be rotated so that their two ends abut against the two stop blocks 540 respectively, reducing the rotation of the tension nuts 530 when the bidirectional screw 520 is rotated. In order to facilitate the rotation of the bidirectional screw 520, the two ends of the bidirectional screw 520 are fixedly connected to rotating blocks or have rotating grooves 521. In this embodiment, the rotating grooves 521 are preferred. The vertical cross section of the rotating grooves 521 is hexagonal.

[0056] refer to Figure 5 and Figure 6A limiting block 550 is rotatably connected to the bidirectional screw 520. The size and shape of the limiting block 550 are the same as those of the tension nut 530. Two limiting support rings 580 are fixedly connected to the bidirectional screw 520. The two limiting support rings 580 correspond to the two limiting blocks 550 respectively and are located on the side of the two limiting blocks 550 that are close to each other. The limiting blocks 550 abut against the limiting support rings 580. The tension nut 530 and the limiting block 550 at one end clamp the first wave web 200, and the tension nut 530 and the limiting block 550 at the other end clamp the second wave web 300. Two synchronizing rods 56 are fixedly connected to the side wall of the tension nut 530 near the limiting block 550. Two arc-shaped grooves 551 are provided on the limiting block 550 and are provided along the axis of the bidirectional screw 520. The synchronizing rod 560 is slidably connected in the rotating groove 521. The end of the synchronizing rod 560 away from the tension nut 530 is fixedly connected to the limiting rod 570. The limiting rod 570 is located on the side of the limiting block 550 away from the tension nut 530 and can abut against the limiting block 550. By setting the limiting rod 570 and the limiting block 550, the rotation of the limiting block 550 during the rotation of the bidirectional screw 520 is reduced, thereby maintaining the clamping effect of the limiting block 550 and the tension nut 530 on the first wave web 200 or the second wave web 300.

[0057] refer to Figure 7 and Figure 8 In step S2, the welding equipment includes a welding mechanism 600, which includes a rolling trolley 610. Four magnetic rollers 630 are rotatably connected to the rolling trolley 610. The magnetic rollers 630 have built-in motors and can roll on their own. The magnetic rollers 630 can be attracted to the first wave web 200 or the second wave web 300 and slide along them. A welding torch 620 is rotatably connected to the rolling trolley 610. The angle of the welding torch 620 is adjustable and it faces the weld. When the first wave web 200 and the second wave web 300 are both fixed on the flange plate 100, the internal weld is not easy to weld. The rolling trolley 610 can be attracted to the first wave web 200, and then the magnetic rollers 630 can be started to drive the welding torch 620 to weld the weld.

[0058] refer to Figure 7 and Figure 8In other embodiments, a connecting assembly 660 may be provided on the first corrugated web 200 and the second corrugated web 300. The connecting assembly 660 includes a connecting screw 661, both ends of which are threaded. A first fixing block 662 is threaded to both ends of the connecting screw 661, and the first fixing blocks 662 at both ends of the connecting screw 661 abut against the opposite sidewalls of the first corrugated web 200 and the second corrugated web 300, respectively. A second fixing block 663 is also threaded to both ends of the connecting screw 661, and the two second fixing blocks 663 are located between the first corrugated web 200 and the second corrugated web 300. The opposite sidewalls of the two second fixing blocks 663 abut against the opposite sidewalls of the first corrugated web 200 and the second corrugated web 300, respectively. The side walls of the two devices are close to each other and abut against each other; the connecting screw 661 is provided with a scale, and the end of the second fixing block 663 away from the first fixing block 662 is provided with a flat surface, which can be flush with the scale line. By measuring the distance between the fixed end of the first wave web 200 and the second wave web 300, the upper distance is limited to reduce the probability of deformation during welding; multiple suspension brackets 640 are fixedly connected to the connecting screw 661. The suspension bracket 640 has a sliding rail, and the shape of the sliding rail is similar to that of the first wave web 200. The rolling trolley 610 is rotatably connected to the suspension wheel 650 through the mounting rod. The suspension wheel 650 is rotatably connected to the sliding rail of the suspension bracket 640. When the rolling trolley 610 slides, the suspension wheel 650 slides along the sliding rail of the suspension bracket 640.

[0059] The implementation principle of the fabrication and welding process of a novel corrugated web steel beam structure according to an embodiment of this application is as follows: First, preparations are made before welding. The flange plate 100, the first corrugated web plate 200, and the second corrugated web plate 300 to be welded are treated by removing paint and rust. According to design requirements, the first corrugated web plate 200 is first inserted into the positioning slot 411, and then spot welded for fixation. Welding is carried out on both sides simultaneously, and segment welding, skip welding, or a combination of both can be used. Then, the insert block of the second corrugated web plate 300 is inserted. 420 is inserted into the adjacent positioning slot 411, and then the bidirectional screw 520 is passed through the through hole 210. The bidirectional screw 520 is rotated so that the limiting block 550 and the tension nut 530 are misaligned with the through hole 210. Then the tension nut 530 is rotated so that the tension nut 530 abuts against the stop block 540. Then the bidirectional screw 520 is tightened so that the two sets of limiting blocks 550 and tension nuts 530 abut against the first wave web 200 and the second wave web 300 respectively. Then spot welding is performed for fixation.

[0060] Connect the connecting screw 661 above the first corrugated web 200 and the second corrugated web 300. Then measure the distance between the first corrugated web 200 and the second corrugated web 300 at the welding end. Then rotate the second fixing block 663 so that the sidewalls of the two second fixing blocks 663 that are far apart abut against the first corrugated web 200 and the second corrugated web 300. Then rotate the first fixing block 662 to fix the position of the suspension bracket 640. Then connect the sliding wheel on the rolling trolley 610 to the sliding rail of the suspension bracket 640. Start the welding gun 620 and the magnetic suction wheel 630. The welding gun 620 welds the weld. After welding, weld another flange plate 100 onto the first corrugated web 200 and the second corrugated web 300.

[0061] After welding is completed, the flux residue at the weld seam is first cleaned, then polished with a wire brush, and finally painted for corrosion protection.

[0062] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A novel manufacturing and welding process of a corrugated web steel beam structure, characterized by, The method comprises the following steps: S1, welding preparation, cleaning the welding parts of each component of the steel beam to ensure the welding quality, S2, welding, S2.1, positioning welding, first correct the perpendicularity of each component of the steel beam and fix it by spot welding, and symmetric positioning welding is adopted during spot welding fixation; S2.2, formal welding, symmetrically fully welding the steel beam, adopting segment welding, skip welding or a combination of the two to reduce welding deformation and welding deviation; S3, joint cleaning and corrosion prevention, cleaning the weld and then brushing paint for corrosion prevention; The steel beam in step S2 comprises flange plates (100), first wave-shaped webs (200) and second wave-shaped webs (300), two of the flange plates (100) are arranged in parallel, two groups of the first wave-shaped webs (200) and two groups of the second wave-shaped webs (300) are arranged between the two flange plates (100), and the first wave-shaped webs (200) and the second wave-shaped webs (300) are connected with the two flange plates (100) by welding respectively; The first wave-shaped web (200) and the second wave-shaped web (300) in each group are symmetrically arranged and form a reinforced space for pouring concrete; A stable mechanism (500) is arranged between the first wave-shaped web (200) and the second wave-shaped web (300) in each group, the stable mechanism (500) comprises a stable plate (510), a plurality of stable plates (510) are arranged on the first wave-shaped web (200), and the side of the stable plate (510) away from the first wave-shaped web (200) abuts against the second wave-shaped web (300); A through hole (210) is formed in each of the first wave-shaped web (200) and the second wave-shaped web (300), the stable mechanism (500) further comprises a bidirectional screw rod (520) and a tension nut (530), both ends of the bidirectional screw rod (520) pass through the through hole (210) of the first wave-shaped web (200) and the through hole (210) of the second wave-shaped web (300) in sequence; both ends of the bidirectional screw rod (520) are threadedly connected with the tension nut (530), and the two tension nuts (530) abut against the first wave-shaped web (200) and the second wave-shaped web (300) respectively.

2. A novel fabrication and welding process of corrugated web steel beam structure as claimed in claim 1, wherein, A positioning mechanism (400) is arranged on the flange plate (100), the positioning mechanism (400) comprises a positioning block (410) and an insertion block (420), four positioning blocks (410) are arranged on the flange plate (100), a positioning insertion slot (411) is formed in the positioning block (410), and the insertion block (420) is arranged on each of the first wave-shaped web (200) and the second wave-shaped web (300) and is inserted into the positioning insertion slot (411).

3. The novel fabrication and welding process of corrugated web steel beam structure as claimed in claim 1, wherein A plurality of overflow holes (511) are formed in the stable plate (510).

4. The novel fabrication and welding process of corrugated web steel beam structure as claimed in claim 1, wherein, The tensioning nut (530) is provided with a rotating groove (521), the stabilizing mechanism (500) further comprises a stop block (540), the first wave-shaped web (200) and the second wave-shaped web (300) are both provided with the stop block (540), and the stop block (540) is used for limiting rotation of the tensioning nut (530).

5. The novel process of fabrication and welding of corrugated web steel beam structure as claimed in claim 4 wherein, The stabilizing mechanism (500) further comprises a limiting block (550), two limiting blocks (550) are rotatably connected to the bidirectional screw rod (520), the limiting blocks (550) are slidably connected with the tensioning nut (530), and the two limiting blocks (550) respectively abut against the side walls of the first wave-shaped web (200) and the second wave-shaped web (300) which are close to each other.

6. The novel process of fabrication and welding of corrugated web steel beam structure as claimed in claim 1 wherein, In the welding in step S2, a welding mechanism (600) is used for welding, the welding mechanism (600) comprises a rolling trolley (610), a welding gun (620), a magnetic wheel (630), a suspension frame (640), a suspension wheel (650) and a connecting assembly (660), four magnetic wheels (630) are arranged on the rolling trolley (610), the magnetic wheels (630) are provided with built-in motors and are adsorbed and relatively rolled with the first wave-shaped web (200) or the second wave-shaped web (300), the welding gun (620) is arranged on the rolling trolley (610) and is used for welding of a weld; the suspension frame (640) is arranged on the first wave-shaped web (200) through the connecting assembly (660), and the suspension wheel (650) rolls along the suspension frame (640).

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