Embedded steel structure flange beam-column node, manufacturing method and welding tooling

Abstract

The present invention relates to the technical field of building node structures, and in particular to an embedded steel structure flange beam-column node, a manufacturing method, and a welding tool, comprising: a load-bearing beam and a flange column arranged at the connection node of the load-bearing beam; the flange column comprises an upper flange, a lower flange, and a cylindrical wall structure, and a through groove for the load-bearing beam to pass through is provided on the cylindrical wall structure in a direction perpendicular to the axis; the load-bearing beam is embedded in the through groove of the cylindrical wall structure, and the cylindrical wall structure is welded and fixed to the edge surface of the trajectory of the through groove and the outer contour edge surface surrounded by the flange and web of the load-bearing beam; the upper flange is welded and fixed to the top of the cylindrical wall structure, and the lower flange is welded and fixed to the bottom of the cylindrical wall structure. The present invention integrates the flange column and the load-bearing beam into an integrated design, which reduces temporary welding work on site and ensures construction quality. In addition, the end of the load-bearing beam is embedded in the flange column, which increases the load-bearing area of ​​the connection node and gives full play to the good bending bearing capacity of the flange of the H-shaped steel beam.

Description

Technical Field

[0001] The present invention relates to the technical field of building node structures, and in particular to an embedded steel structure flange beam-column node, a manufacturing method and a welding tool. Background Art

[0002] Steel structures hold a crucial position in the construction industry due to their numerous advantages, including high strength, light weight, and advanced industrialization. Steel structure connection nodes are key components that ensure the coordinated function of beams and columns to form the overall structure. Their mechanical properties directly impact the overall structural stiffness, stability, and load-bearing capacity.

[0003] There are many ways to connect the beam-column nodes of steel structure towers used for construction, including direct welding or bolting, node plate bolting, and connecting steel plate bolting. The direct welding method usually provides non-through or through horizontal stiffeners on the steel columns, which are bolted or welded to the upper and lower flanges of the I-beam. The node plate bolting method is usually used in truss structures. Steel plates are directly welded to the columns, and high-strength bolts are used to connect the steel beams to the diagonal braces and steel plates. The connecting steel plate bolting method is usually used in the connection between the beam and the column head. The column with the beam head is pre-processed in the factory, and the beam head and the column are welded. The beam head and the upper and lower flanges and webs of the I-beam are connected with pre-opened connecting steel plates and high-strength bolts on both sides.

[0004] However, although the above connection form is a rigid connection, the node has poor ductility and is prone to brittle failure during earthquakes. It also requires on-site welding, which greatly affects the construction speed and quality. In addition, due to the large welding area, it is easy to generate large residual stress, which affects the bearing performance of the node. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an embedded steel structure flange beam-column node, a manufacturing method and a welding tool to effectively solve the problems in the background technology.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is: an embedded steel structure flange beam-column node, comprising: a load-bearing beam, including a first H-steel beam and a second H-steel beam spliced ​​along the width direction;

[0007] and flange columns provided at the connection nodes of the load-bearing beams;

[0008] The flange column includes an upper flange, a lower flange, and a cylindrical wall structure provided between the upper flange and the lower flange, and a through slot for the load-bearing beam to pass through is provided on the cylindrical wall structure in a direction perpendicular to the axis;

[0009] The load-bearing beam is embedded in the through-groove of the cylindrical wall structure, and the edge surface of the cylindrical wall structure located at the track of the through-groove is welded and fixed to the edge surface of the outer contour formed by the flange and the web of the load-bearing beam;

[0010] The upper flange is welded and fixed above the cylinder wall structure and connected to the bottom flange of the upper column;

[0011] The lower flange is welded and fixed below the cylinder wall structure and is connected to the top flange of the lower column.

[0012] Furthermore, the upper and lower flanges of the first H-shaped steel beam and the second H-shaped steel beam are aligned;

[0013] A core plate is arranged between the first H-shaped steel beam and the second H-shaped steel beam, wherein the core plate is arranged parallel to the two web plates;

[0014] The contact end surfaces of the core plate and the upper and lower flanges are lower than the flange planes.

[0015] Furthermore, the through slots include two horizontal slots for the upper and lower flanges to pass through, and a vertical slot for the web to pass through;

[0016] The vertical groove is connected to the two horizontal grooves, and the cylinder wall structure forms a convex edge toward the vertical groove, and the convex edge is clamped in the opening groove of the flange and the web.

[0017] Furthermore, a rib plate is provided in the space enclosed by the core plate and the web plates of the first H-steel beam and the second H-steel beam;

[0018] The ribs are arranged in the relative extension directions of the two protruding edges, so that the ribs are connected with the protruding edges to form a closed column.

[0019] Furthermore, the through groove is provided in a direction perpendicular to the axis so as to divide the cylindrical wall structure into two symmetrical columnar arc plates;

[0020] Both end surfaces of the two column arc plates are flush with the upper and lower flanges of the load-bearing beam;

[0021] The upper flange and the lower flange are fixed to the end surface of the cylinder wall structure and are in contact with the flange surface of the load-bearing beam.

[0022] Furthermore, the load-bearing beam is provided with positioning holes at positions corresponding to the connection holes of the flange columns, and the upper flange and the lower flange are fixed to the flange of the load-bearing beam by bolts passing through the positioning holes.

[0023] The present invention provides an embedded steel structure flange beam-column node welding tool, which is used to position and weld the embedded steel structure flange beam-column node as described above. The welding tool comprises:

[0024] operating platform;

[0025] Two first support columns are provided at both ends of the operating platform, and the two first support columns are located in the same vertical cross-section to form a first bearing assembly;

[0026] Two second support columns are provided at both ends of the operating platform, and the two second support columns are located in the same vertical cross section to form a second bearing assembly;

[0027] Two first sliding assemblies are arranged below the two first support columns, and the distance between the two first support columns is greater than the distance between the two second support columns, so that the first bearing assembly slides toward the second bearing assembly to perform tailor welding of the first H-shaped steel beam and the second H-shaped steel beam;

[0028] Two second sliding assemblies, disposed at two ends of the operating platform, for synchronously adjusting the distance between the two first support columns and the two second support columns;

[0029] The welding conversion platform is arranged between the two second support columns and is used to support the middle position of the load-bearing beam so as to perform tailor welding on the flange columns at both ends.

[0030] Furthermore, a first cantilever is provided in the first support column, and the first cantilever slides in a horizontal direction;

[0031] A second cantilever is provided in the second supporting column, and the second cantilever slides in a vertical direction;

[0032] Furthermore, a height of the first cantilever in the vertical direction is higher than a height of the second supporting column.

[0033] Furthermore, the welding conversion platform includes a first drive assembly, a second drive assembly, and a placement plate provided at the drive ends of the first drive assembly and the second drive assembly;

[0034] The first driving assembly includes a first cylinder and a second cylinder, and the first cylinder and the second cylinder are driven synchronously;

[0035] The second driving assembly includes a third cylinder and a rotation support assembly, the rotation support assembly includes a base and a plane bearing disposed in the base, the upper surface of the plane bearing protruding from the upper surface of the base;

[0036] The third cylinder is arranged between the first cylinder and the second cylinder, and the driving rod of the third cylinder is connected to the rotation support assembly to drive the base to move upward until the plane bearing contacts the placement plate, and the placement plate rotates.

[0037] The present invention provides a method for manufacturing an embedded steel structure flange beam-column node, using the welding tool as described in any one of the above items, comprising the following steps:

[0038] Make a load-bearing beam, place the first H-shaped steel beam and the second H-shaped steel beam on the first load-bearing assembly and the second load-bearing assembly respectively, align the core plate and place it on the second H-shaped steel beam, and preliminarily fix the core plate on the second H-shaped steel beam by spot welding;

[0039] The first bearing assembly drives the first H-shaped steel beam to slide toward the second H-shaped steel beam through the first sliding assembly until the first H-shaped steel beam and the second H-shaped steel beam are located in the same mid-vertical plane. The two second cantilevers move the second H-shaped steel beam upward in the vertical direction until the core plate contacts the bottom of the first H-shaped steel beam. The first H-shaped steel beam and the second H-shaped steel beam are welded by double-sided groove welding.

[0040] Convert support. After the load-bearing beam is welded, the first cantilever is separated from the H-steel beam, and the second cantilever drives the H-steel beam to move downward. At this time, the first cylinder and the second cylinder act synchronously to move the placement plate upward to support the load-bearing beam, and the first support column and the second support column are moved to both sides through the second sliding assembly, so that the load-bearing beam is separated from the support of the first support column and the second support column. Start the third cylinder, and the third cylinder drives the rotating support assembly to move upward. When the plane bearing contacts the placement plate and the first cylinder and the second cylinder are separated from the placement plate, the placement plate is rotated to rotate the load-bearing beam to an angle convenient for installation. Restart the first cylinder and the second cylinder to move upward again to support the placement plate.

[0041] Make flange beam columns, fix the upper and lower flanges to the flanges of the load-bearing beams with bolts, align the center of the circle so that the two column arc plates of the cylinder wall structure are welded to the load-bearing beams, and finally weld the cylinder wall structure and the upper and lower flanges, and weld multiple stiffeners in the circumferential direction of the cylinder wall structure to finally complete the welding of the beam-column node.

[0042] The beneficial effects of the present invention are as follows: the present invention integrates the flange column and the load-bearing beam into an integrated design, which reduces on-site temporary welding operations, ensures construction quality while reducing environmental pollution, and embodies the concept of green construction. The end of the load-bearing beam is embedded in the flange column, which increases the stress-bearing area of ​​the connection node and gives full play to the good bending bearing capacity of the H-shaped steel beam flange. The load-bearing beam is reusable and can be connected to flange steel pipes of different lengths, which increases the turnover rate of material use and achieves the purpose of reducing costs and increasing efficiency. The on-site installation and disassembly process is simple, which saves construction time and reduces the safety hazards of high-altitude operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0044] Figure 1 This is a schematic diagram of the structure of the connection between the embedded steel structure flange beam-column node and the column in an embodiment of the present invention;

[0045] Figure 2 for Figure 1 A local enlarged view of point A;

[0046] Figure 3 Schematic diagram of the connection between the double H steel beam and the flange column in an embodiment of the present invention;

[0047] Figure 4 for Figure 3 A partial enlarged view of point B;

[0048] Figure 5 This is a schematic structural diagram of a flange column in an embodiment of the present invention;

[0049] Figure 6 Schematic diagram of the distribution of the rib plate and the cylinder wall structure in an embodiment of the present invention;

[0050] Figure 7 This is an exploded schematic diagram of a flange column in an embodiment of the present invention;

[0051] Figure 8 Schematic diagram of the axonometric structure of the tailor-made welding fixture in an embodiment of the present invention;

[0052] Figure 9 A top view of a tailor-made welding fixture according to an embodiment of the present invention;

[0053] Figure 10 It is a front view of the welding fixture in an embodiment of the present invention;

[0054] Figure 11 This is a schematic structural diagram of the first supporting column in an embodiment of the present invention;

[0055] Figure 12 This is a schematic structural diagram of the second support column in an embodiment of the present invention;

[0056] Figure 13 for Figure 10 A partial enlarged view of point C;

[0057] Figure 14 This is a structural diagram of a welding conversion platform in an embodiment of the present invention;

[0058] Figure 15 2 is a schematic structural diagram of a second drive assembly in an embodiment of the present invention;

[0059] Figure 16 This is a structural schematic diagram of the first support column sliding to the second support column in an embodiment of the present invention;

[0060] Figure 17 This is a structural diagram of the welding conversion platform for converting and supporting the load-bearing beam in an embodiment of the present invention;

[0061] Figure 18 This is a schematic diagram of the structure of the rotating placement plate in an embodiment of the present invention;

[0062] Figure 19 This is a structural schematic diagram of a flange column welded to a load-bearing beam in an embodiment of the present invention.

[0063] Figure markings: 1. load-bearing beam; 11. first H-steel beam; 12. second H-steel beam; a. flange; b. web; c. positioning hole; 2. flange column; 21. upper flange; 22. lower flange; 23. cylinder wall structure; 231. through groove; 232. convex edge; 3. core plate; 4. rib plate; 100. operating platform; 200. first support column; 210. first cantilever; 300. second support column; 310. second cantilever; 400. first sliding assembly; 500. second sliding assembly; 600. welding conversion platform; 610. first drive assembly; 611. first cylinder; 612. second cylinder; 620. second drive assembly; 621. third cylinder; 622. rotating support assembly; 6221. base; 6222. plane bearing; 630. placement plate. DETAILED DESCRIPTION

[0064] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0065] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0066] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0067] like Figures 1 to 7 The embedded steel structure flange beam-column node shown includes: a load-bearing beam 1, and a flange column 2 provided at the connection node of the load-bearing beam 1; the load-bearing beam 1 includes a first H-shaped steel beam 11 and a second H-shaped steel beam 12 spliced ​​along the width direction. The double-jointed structure of the first H-shaped steel beam 11 and the second H-shaped steel beam 12 ensures the load-bearing ability of the load-bearing beam 1; the flange column 2 includes an upper flange 21, a lower flange 22, and a cylindrical wall structure 23 provided between the upper flange 21 and the lower flange 22. Reinforcing ribs are provided along the circumferential direction at the welds between the cylindrical wall structure 23 and the upper flange 21 and the lower flange 22 to ensure the stability of the flange column 2, and a through groove 231 is provided on the cylindrical wall structure 23 in a direction perpendicular to the axis for the load-bearing beam 1 to pass through;

[0068] Among them, the load-bearing beam 1 is embedded in the through groove 231 of the cylindrical wall structure 23, and its end face extending out of the through groove 231 coincides with the projection of the upper flange 21 in the vertical direction. The track edge surface of the cylindrical wall structure 23 located in the through groove 231 is welded and fixed to the outer contour edge surface surrounded by the flange a and the web b of the load-bearing beam 1. The upper flange 21 is welded and fixed to the top of the cylindrical wall structure 23 and connected to the bottom flange of the upper column. The lower flange 22 is welded and fixed to the bottom of the cylindrical wall structure 23 and connected to the top flange of the lower column.

[0069] In the preferred embodiment of the present invention, the flange column 2 and the load-bearing beam 1 are designed as an integrated whole, which reduces on-site temporary welding operations, ensures construction quality and reduces environmental pollution, embodies the concept of green construction, and the end of the load-bearing beam 1 is embedded in the flange column 2, which increases the force-bearing area of ​​the connection node and gives full play to the good bending bearing capacity of the H-shaped steel beam flange a. In addition, the load-bearing beam 1 is reusable and can be connected to flange steel pipes of different lengths, which increases the turnover rate of material use and achieves the purpose of reducing costs and increasing efficiency. The on-site installation and disassembly process is simple, which saves construction time and reduces the safety hazards of high-altitude operations.

[0070] To ensure uniform stress distribution across the cross-section of the load-bearing beam 1, the upper and lower flanges a of the first H-shaped beam 11 and the second H-shaped beam 12 are aligned so that the load-bearing surfaces of the load-bearing beam 1 lie in the same horizontal plane, effectively ensuring the bending resistance of the weld. However, when the first and second H-shaped beams 11 and 12 are spliced ​​side by side, the joint is located on the outer side of the flanges a. Thermal expansion and contraction can easily cause the upper and lower flanges a to form weld lines that bulge outward or sink inward on the outer sides. Therefore, a core plate 3 is positioned between the first and second H-shaped beams 11 and 12, parallel to the two webs b. The core plate 3 is sandwiched between the first and second H-shaped beams 11 and 12, providing intermediate support. The contact surfaces of the core plate 3 with the upper and lower flanges a are lower than the plane of the flanges a. This reserves welding space, facilitating the use of double-sided groove welds between the core plate 3 and the first and second H-shaped beams 11 and 12, increasing weld reliability.

[0071] In a preferred embodiment of the present invention, the through groove 231 includes two horizontal grooves for the upper and lower flanges a to pass through, and a vertical groove for the web b to pass through; the cross-sectional width of the horizontal groove is the total width of the flange a after the two H-steel beams are spliced ​​together, and the cross-sectional width of the vertical groove is the distance between the webs b of the beam after the two H-steel beams are spliced ​​together. The vertical groove connects the two horizontal grooves, and the cylindrical wall structure 23 forms a convex edge 232 toward the vertical groove. The convex edge 232 is clamped in the open groove of the flange a and the web b, and the side walls of the convex edge 232 are welded and fixed to the web b, and the top wall is welded and fixed to the upper and lower flanges a, thereby ensuring the reliability of the connection between the flange column 2 and the load-bearing beam 1 and increasing the connection strength of the beam-column node.

[0072] On the basis of the above embodiment, a rib plate 4 is provided in the space enclosed by the core plate 3 and the web b of the first H steel beam 11 and the second H steel beam 12; the rib plate 4 supports the upper and lower flanges a of the H steel beam, and the rib plate 4 is arranged in the relative extension direction of the two flanges 232, so that the rib plate 4 is connected to the flange 232 to form a closed column, thereby ensuring the overall structural strength of the cylinder wall structure 23 and effectively improving the bearing capacity of the cylinder wall structure 23.

[0073] In a preferred embodiment of the present invention, the through groove 231 is provided in a direction perpendicular to the axis so that the cylinder wall structure 23 is divided into two symmetrical column arc plates; by butt welding, the two column arc plates form a complete cylinder on the load-bearing beam 1, thereby increasing the overall structural strength, and when butting, the axes of the two column arc plates are ensured to be collinear with the axes of the upper and lower flanges 22 to avoid the column tilting caused by uneven axial force on the flange column 2. In addition, after the cylinder wall structure 23 is welded to the upper flange 21 and the lower flange 22, the two end faces of the two column arc plates are flush with the upper and lower flanges a of the load-bearing beam 1; at the same time, the upper flange 21 and the lower flange 22 are fixed to the end faces of the cylinder wall structure 23 and in contact with the flange a surface of the load-bearing beam 1, which can better exert the bending resistance of the load-bearing beam 1, improve the load-bearing capacity of the beam-column node, and effectively ensure the stability of the structure.

[0074] When the flange column 2 is welded to the load-bearing beam 1, the axes of the upper flange 21 and the lower flange 22 must be ensured to be collinear, so as to locate the position of the cylinder wall structure 23, thereby meeting the bearing capacity requirements. Therefore, a positioning hole c is provided at the connection hole position of the flange column 2 corresponding to the load-bearing beam 1, and the upper flange 21 and the lower flange 22 are fixed to the flange a of the load-bearing beam 1 by bolts passing through the positioning hole c. The installation position of the upper flange 21 and the lower flange 22 can be quickly found, and the flange installation accuracy is also guaranteed to a certain extent, thereby reducing the influence of the installation error on the node bearing capacity, and through the setting of the positioning hole c, the position of the cylinder wall structure 23 can also be indirectly aligned, thereby improving the welding efficiency.

[0075] The present invention also provides an embedded steel structure flange beam-column node welding tool for positioning and welding the embedded steel structure flange beam-column node, such as Figures 8 to 19 As shown, the welding fixture includes: an operating platform 100, wherein the operating platform 100 is spliced ​​by steel structures to ensure the overall structural strength and enable the height of the operating platform 100 to meet the height requirements of use. Further preferably, two first support columns 200 are provided at both ends of the operating platform 100, and the two first support columns 200 are located in the same vertical section to form a first load-bearing component; two second support columns 300 are provided at both ends of the operating platform 100, and the two second support columns 300 are located in the same vertical section to form a second load-bearing component; the first load-bearing component and the second load-bearing component are arranged in parallel and are arranged on both sides of the operating platform 100 to ensure that there is sufficient placement space for the steel beam when it is placed, and the support columns on the same side ensure that the two flanges a are in a vertical state when supporting the steel beam, which can ensure the stability of the steel beam support;

[0076] Two first sliding assemblies 400 are disposed below the two first support columns 200, and the distance between the two first support columns 200 is greater than the distance between the two second support columns 300, so that the first bearing assembly slides toward the second bearing assembly to perform tailor welding of the first H-shaped steel beam 11 and the second H-shaped steel beam 12;

[0077] Two second sliding assemblies 500 are provided at both ends of the operating platform 100 and are used to synchronously adjust the distance between the two first support columns 200 and the two second support columns 300 so as to adapt to steel beams of different lengths and improve the versatility of the device;

[0078] The welding conversion platform 600 is provided between the two second support columns 300 and is used to support the middle position of the load-bearing beam 1 so as to perform tailor welding on the flange columns 2 at both ends.

[0079] The present invention can save the H-steel beam welding time and ensure the splicing accuracy of the load-bearing beam 1 through the arrangement of the first support column 200 and the second support column 300, thereby effectively ensuring the overall bending resistance of the load-bearing beam 1. Through the arrangement of the welding conversion platform 600, when completing the double welding of the H-steel beam, the load-bearing beam 1 is rotated to a certain angle to ensure that the flange column 2 has sufficient welding space, thereby improving the convenience of welding.

[0080] In a preferred embodiment of the present invention, a first cantilever 210 is provided in the first support column 200, and the first cantilever 210 slides in the horizontal direction; a second cantilever 310 is provided in the second support column 300, and the second cantilever 310 slides in the vertical direction; and the height of the first cantilever 210 in the vertical direction is higher than the height of the second support column 300.

[0081] In the present invention, the first cantilever 210 in the first support column 200 supports an H-steel beam, and the second cantilever 310 in the second support column 300 supports another H-steel beam. After the two H-steel beams are spliced, the two second cantilevers 310 will drive the spliced ​​load-bearing beam 1 to move downward so that the load-bearing beam 1 can be placed on the welding conversion table. In order to ensure that the second cantilever 310 can smoothly descend to the set height, the first cantilever 210 is slid in the horizontal direction until it is separated from the H-steel beam. During adjustment, only the extension distance of the first cantilever 210 needs to be manually controlled, which improves the convenience of operation.

[0082] In a preferred embodiment of the present invention, the welding conversion platform 600 includes a first driving assembly 610, a second driving assembly 620, and a placement plate 630 disposed at the driving ends of the first driving assembly 610 and the second driving assembly 620;

[0083] The first driving assembly 610 includes a first cylinder 611 and a second cylinder 612 , and the first cylinder 611 and the second cylinder 612 are driven synchronously;

[0084] The second driving assembly 620 includes a third cylinder 621 and a rotating support assembly 622. The rotating support assembly 622 includes a base 6221 and a plane bearing 6222 arranged in the base 6221. The upper surface of the plane bearing 6222 protrudes from the upper surface of the base 6221. Specifically, the upper surface of the plane bearing 6222 has a conical structure, and the center position of the placement plate 630 is provided with a tapered hole matching the conical structure, which can realize automatic centering, thereby ensuring that the placement plate 630 rotates around the central axis, avoiding the side tilting caused by eccentricity, and improving the stability of the rotation of the placement plate 630. In addition, a symmetrical guide rod structure is provided on the first cylinder 611, the second cylinder 612 and the third cylinder 621, which can play a guiding role when the cylinder is pushed upward, thereby improving the stability and reliability of the drive.

[0085] The third cylinder 621 is set between the first cylinder 611 and the second cylinder 612, and the driving rod of the third cylinder 621 is connected to the rotation support assembly 622 to drive the base 6221 to move upward until the plane bearing 6222 contacts the placement plate 630, so that the placement plate 630 can rotate.

[0086] Specifically, when the driving height of the first cylinder 611 and the second cylinder 612 is greater than the driving height of the third cylinder 621, the placement plate 630 supports the load-bearing beam; when the driving height of the first cylinder 611 and the second cylinder 612 is less than the driving height of the third cylinder 621, the pneumatic rod of the third cylinder 621 and the placement plate 630 clamp the plane bearing 6222, and the placement plate 630 can rotate around its own axis.

[0087] The present invention provides a method for manufacturing an embedded steel structure flange beam-column node, using a tailor-made welding tool, comprising the following steps:

[0088] Make the load-bearing beam 1: Place the first H-shaped steel beam 11 and the second H-shaped steel beam 12 on the first load-bearing assembly and the second load-bearing assembly respectively, align the core plate 3 and place it on the second H-shaped steel beam 12, and preliminarily fix the core plate 3 on the second H-shaped steel beam 12 by spot welding;

[0089] The first bearing assembly drives the first H-shaped steel beam 11 to slide toward the second H-shaped steel beam 12 through the first sliding assembly 400 until the first H-shaped steel beam 11 and the second H-shaped steel beam 12 are located in the same mid-vertical plane. The two second cantilevers 310 move the second H-shaped steel beam 12 upward in the vertical direction until the core plate 3 contacts the bottom of the first H-shaped steel beam 11. The first H-shaped steel beam 11 and the second H-shaped steel beam 12 are welded and fixed using double-sided groove welding.

[0090] Conversion support: After the load-bearing beam 1 is welded, the first cantilever 210 is separated from the H-steel beam, and the second cantilever 310 drives the H-steel beam to move downward. At this time, the first cylinder 611 and the second cylinder 612 act synchronously to move the placement plate 630 upward to support the load-bearing beam 1, and the first support column 200 and the second support column 300 are moved to both sides through the second sliding assembly 500, so that the load-bearing beam 1 is separated from the support of the first support column 200 and the second support column 300. The third cylinder 621 is started, and the third cylinder 621 drives the rotating support assembly 622 to move upward. When the plane bearing 6222 contacts the placement plate 630 and the first cylinder 611 and the second cylinder 612 are separated from the placement plate 630, the placement plate 630 is rotated to rotate the load-bearing beam 1 to an angle convenient for installation. The first cylinder 611 and the second cylinder 612 are restarted to move upward again to support the placement plate 630.

[0091] Make flange beam columns: fix the upper flange 21 and the lower flange 22 to the flange a of the load-bearing beam 1 with bolts, align the center of the circle so that the two column arc plates of the cylinder wall structure 23 are welded to the load-bearing beam 1, and finally weld the cylinder wall structure 23 and the upper flange 21 and the lower flange 22, and weld multiple stiffeners 4 in the circumferential direction of the cylinder wall structure 23 to finally complete the welding of the beam-column node.

[0092] Those skilled in the art will appreciate that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An embedded steel structure flange beam-column node, characterized in that: include: The load-bearing beam comprises a first H-shaped steel beam and a second H-shaped steel beam spliced ​​along the width direction; and flange columns provided at the connection nodes of the load-bearing beams; The flange column includes an upper flange, a lower flange, and a cylindrical wall structure provided between the upper flange and the lower flange, and a through slot for the load-bearing beam to pass through is provided on the cylindrical wall structure in a direction perpendicular to the axis; The load-bearing beam is embedded in the through-groove of the cylindrical wall structure, and the edge surface of the cylindrical wall structure located at the track of the through-groove is welded and fixed to the edge surface of the outer contour formed by the flange and the web of the load-bearing beam; The upper flange is welded and fixed above the cylinder wall structure and connected to the bottom flange of the upper column; The lower flange is welded and fixed below the cylinder wall structure and is connected to the top flange of the lower column.

2. The embedded steel structure flange beam-column node according to claim 1, characterized in that: The upper and lower flanges of the first H-shaped steel beam and the second H-shaped steel beam are aligned; A core plate is arranged between the first H-shaped steel beam and the second H-shaped steel beam, wherein the core plate is arranged parallel to the two web plates; The contact end surfaces of the core plate and the upper and lower flanges are lower than the flange planes.

3. The embedded steel structure flange beam-column node according to claim 2, characterized in that: The through slots include two horizontal slots for the upper and lower flanges to pass through, and a vertical slot for the web to pass through; The vertical groove is connected to the two horizontal grooves, and the cylinder wall structure forms a convex edge toward the vertical groove, and the convex edge is clamped in the opening groove of the flange and the web.

4. The embedded steel structure flange beam-column node according to claim 3, characterized in that: A rib plate is provided in a space enclosed by the core plate and the web plates of the first H-steel beam and the second H-steel beam; The ribs are arranged in the relative extension directions of the two protrusions, so that the ribs are connected with the protrusions to form a closed column.

5. The embedded steel structure flange beam-column node according to any one of claims 1 to 4, characterized in that: The through groove is provided in a direction perpendicular to the axis so as to divide the cylindrical wall structure into two symmetrical columnar arc plates; Both end surfaces of the two column arc plates are flush with the upper and lower flanges of the load-bearing beam; The upper flange and the lower flange are fixed to the end surface of the cylinder wall structure and are in contact with the flange surface of the load-bearing beam.

6. The embedded steel structure flange beam-column node according to any one of claims 1 to 4, characterized in that: The load-bearing beam is provided with a positioning hole at a position corresponding to the connection hole of the flange column, and the upper flange and the lower flange are fixed to the flange of the load-bearing beam by bolts passing through the positioning hole.

7. An embedded steel structure flange beam-column node welding tool, used for positioning and welding the embedded steel structure flange beam-column node according to any one of claims 1 to 6, characterized in that: The tailor-made welding tool comprises: operating platform; Two first support columns are provided at both ends of the operating platform, and the two first support columns are located in the same vertical cross-section to form a first bearing assembly; Two second support columns are provided at both ends of the operating platform, and the two second support columns are located in the same vertical cross section to form a second bearing assembly; Two first sliding assemblies are arranged below the two first support columns, and the distance between the two first support columns is greater than the distance between the two second support columns, so that the first bearing assembly slides toward the second bearing assembly to perform tailor welding of the first H-shaped steel beam and the second H-shaped steel beam; Two second sliding assemblies, disposed at two ends of the operating platform, for synchronously adjusting the distance between the two first support columns and the two second support columns; The welding conversion platform is arranged between the two second support columns and is used to support the middle position of the load-bearing beam so as to perform tailor welding on the flange columns at both ends.

8. The embedded steel structure flange beam-column node welding fixture according to claim 7 is characterized in that: A first cantilever is provided in the first supporting column, and the first cantilever slides in a horizontal direction; A second cantilever is provided in the second supporting column, and the second cantilever slides in a vertical direction; Furthermore, a height of the first cantilever in the vertical direction is higher than a height of the second supporting column.

9. The embedded steel structure flange beam-column node welding fixture according to claim 7, characterized in that: The welding conversion platform includes a first drive assembly, a second drive assembly, and a placement plate arranged at the drive ends of the first drive assembly and the second drive assembly; The first driving assembly includes a first cylinder and a second cylinder, and the first cylinder and the second cylinder are driven synchronously; The second driving assembly includes a third cylinder and a rotation support assembly, the rotation support assembly includes a base and a plane bearing disposed in the base, the upper surface of the plane bearing protruding from the upper surface of the base; The third cylinder is arranged between the first cylinder and the second cylinder, and the driving rod of the third cylinder is connected to the rotation support assembly to drive the base to move upward until the plane bearing contacts the placement plate, and the placement plate rotates.

10. A method for manufacturing an embedded steel structure flange beam-column node, using the welding tool according to any one of claims 7 to 9, characterized in that: The following steps are involved: Make a load-bearing beam, place the first H-shaped steel beam and the second H-shaped steel beam on the first load-bearing assembly and the second load-bearing assembly respectively, align the core plate and place it on the second H-shaped steel beam, and preliminarily fix the core plate on the second H-shaped steel beam by spot welding; The first bearing assembly drives the first H-shaped steel beam to slide toward the second H-shaped steel beam through the first sliding assembly until the first H-shaped steel beam and the second H-shaped steel beam are located in the same mid-vertical plane. The two second cantilevers move the second H-shaped steel beam upward in the vertical direction until the core plate contacts the bottom of the first H-shaped steel beam. The first H-shaped steel beam and the second H-shaped steel beam are welded by double-sided groove welding. Convert support. After the load-bearing beam is welded, the first cantilever is separated from the H-steel beam, and the second cantilever drives the H-steel beam to move downward. At this time, the first cylinder and the second cylinder act synchronously to move the placement plate upward to support the load-bearing beam, and the first support column and the second support column are moved to both sides through the second sliding assembly, so that the load-bearing beam is separated from the support of the first support column and the second support column. Start the third cylinder, and the third cylinder drives the rotating support assembly to move upward. When the plane bearing contacts the placement plate and the first cylinder and the second cylinder are separated from the placement plate, the placement plate is rotated to rotate the load-bearing beam to an angle convenient for installation. Restart the first cylinder and the second cylinder to move upward again to support the placement plate. Make flange beam columns, fix the upper and lower flanges to the flanges of the load-bearing beams with bolts, align the center of the circle so that the two column arc plates of the cylinder wall structure are welded to the load-bearing beams, and finally weld the cylinder wall structure and the upper and lower flanges, and weld multiple stiffeners in the circumferential direction of the cylinder wall structure to finally complete the welding of the beam-column node.

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