Assembly type steel structure beam-column joint connecting piece and manufacturing method

Abstract

The invention relates to the technical field of steel structure connecting pieces, and particularly discloses an assembly type steel structure beam column joint connecting piece and a manufacturing method. Comprising a rectangular frame formed by continuously bending a single plate body, each wall part of the rectangular frame is provided with an upper vertical lug plate and a lower vertical lug plate which are formed by bending and are distributed in a staggered manner, the top end of each wall part is provided with two upper transverse lug plates, and the bottom end of each wall part is provided with two lower transverse lug plates; bolt holes are formed in the rectangular frame, the upper vertical lug plate, the lower vertical lug plate, the upper transverse lug plate and the lower transverse lug plate. The assembly type steel structure beam-column joint connecting piece is integrally formed, and is high in overall structural property, excellent in mechanical property and high in applicability; during installation, a multi-coordination relation can be established with a beam column, and the connection stability is remarkably improved through the synergistic effect of geometric constraint and friction; the number of holes formed in the connecting piece and the beam column is effectively reduced, the installation efficiency is improved, the section integrity of the connecting piece and the beam column is reserved, and the structural strength of the beam column joint is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure connectors, and in particular to an assembled steel structure beam-column node connector and a manufacturing method thereof. Background Art

[0002] In the existing steel structure technology, the performance of the beam-column node connector, as a key force transmission component, directly affects the stability and safety of the overall structure. Traditional beam-column node connectors mostly adopt a multi-plate welding combination. Although it can meet the needs of multi-beam column connection, it has significant limitations in practical applications: First, the connector needs to be connected and fixed to the beam and column through a large number of bolts, which not only increases the complexity of construction and reduces the installation efficiency, but also weakens the cross-section of the connector and the beam and column due to the excessive number of openings, affecting the structural strength; secondly, the multi-plate welding process is complex, the processing accuracy requirements are high, and welding residual stress and deformation are easily generated, resulting in poor integrity of the connector, difficult to ensure mechanical properties, and high manufacturing costs. In addition, the coordination relationship between traditional connectors and beams and columns is single, mainly relying on the shear force of bolts to transfer loads, and the connection stability is limited. It is difficult to meet the needs of modern large-span and high-rise buildings for high strength, high stiffness and high construction efficiency of node connectors. Summary of the invention

[0003] In order to solve the deficiencies in the prior art, the present invention provides an assembled steel structure beam-column node connector, which is integrally formed, has low manufacturing cost, strong structural properties, and excellent mechanical properties. It can significantly improve the strength of the beam-column node and is conducive to improving installation and construction efficiency.

[0004] At the same time, the technical purpose of the present invention is also to provide a method for manufacturing the assembled steel structure beam-column node connector.

[0005] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: A prefabricated steel structure beam-column node connector, comprising a rectangular frame, characterized in that: the rectangular frame is formed by continuous bending of a single plate body, and is a closed-loop structure with four wall portions, a center seam is provided in the middle of each wall portion in the horizontal direction, the plate body portion on the upper side of the center seam is bent to form an upper vertical ear plate extending outward, and the plate body portion on the lower side of the center seam is bent to form a lower vertical ear plate extending outward; the upper vertical ear plate and the lower vertical ear plate are consistent in shape and both are double-layer structures; the upper vertical ear plate and the lower vertical ear plate located on the same wall portion are staggered; the top of each wall portion is provided with two upper horizontal ear plates formed by vertically bending outward, the two upper horizontal ear plates are located on both sides of the upper vertical ear plate and the three upper ends are flush; the bottom end of each wall portion is provided with two lower horizontal ear plates formed by vertically bending outward, the two lower horizontal ear plates are located on both sides of the lower vertical ear plate and the three lower ends are flush; bolt holes are provided on the rectangular frame, the upper vertical ear plate, the lower vertical ear plate, the upper horizontal ear plate and the lower horizontal ear plate.

[0006] In a preferred embodiment, the upper vertical ear plate and the lower vertical ear plate on a wall portion are both composed of two ends of a plate body.

[0007] In a preferred embodiment, the two ends of the plate body are butted on a wall portion of the rectangular frame and the butt joint is welded.

[0008] In a preferred embodiment, connecting parts are respectively provided at both ends of the plate body, and the two connecting parts are matched at the corners of the rectangular frame and fixedly connected by fastening bolts.

[0009] In a preferred embodiment, the upper transverse ear plate and the lower transverse ear plate are both in a trapezoidal shape.

[0010] In a preferred embodiment, the rectangular frame is provided with bolt holes only on a pair of opposite wall portions.

[0011] A method for manufacturing the assembled steel structure beam-column node connector according to claim 1, comprising the following steps: Step 1: Cutting materials; Select steel plates of corresponding specifications and cut them to obtain unfolded plates; the unfolded plates are in the shape of long strips, including parts for forming four wall parts, four upper vertical ear plates, four lower vertical ear plates, eight upper horizontal ear plates and eight lower horizontal ear plates, and a center seam is provided on the unfolded plates; Step 2: Forming the upper vertical ear plate and the lower vertical ear plate; The plate body parts on the upper and lower sides of each center seam are bent. When the upper and lower corresponding vertical ear plates and lower vertical ear plates are of a circular bending structure, two sets of bending mechanisms are used to simultaneously bend the plate body parts on the upper and lower sides of the center seam, so that the upper and lower vertical ear plates are formed synchronously; Step 3: Forming the upper transverse ear plate, the lower transverse ear plate and the rectangular frame; The plate body is continuously bent to form a closed loop structure with four walls, and the upper transverse ear plate and the lower transverse ear plate are vertically bent outward; Step 4: Open the bolt holes; The formed connecting parts are fixed, and the wall, upper vertical ear plate, lower vertical ear plate, upper transverse ear plate and lower transverse ear plate are clamped in sequence by a clamp to correct the shape and direction, and corresponding bolt holes are opened during the clamping process, thereby obtaining an assembled steel structure beam-column node connecting part.

[0012] In a preferred embodiment, in step 1, the two ends of the unfolded material plate are planar ends. In step 3, after the plate body of the unfolded material plate is continuously bent to form a closed-loop structure, the two planar ends of the plate body are butt-jointed on a wall portion, and the butt joints are welded to fix the two ends of the plate body in connection.

[0013] In a preferred embodiment, in step 1, connecting parts are reserved at both ends of the unfolded material plate. In step 3, the connecting parts are bent before the plate body is continuously bent. After a closed-loop structure with four wall parts is formed, the two connecting parts are matched at the corners of the rectangular frame. In step 4, bolt holes are opened on the connecting parts, and the two connecting parts are fastened together by tightening bolts.

[0014] In a preferred embodiment, in step 1, a center seam is opened at both ends of the unfolded material plate, and the plate body portions on the upper and lower sides of the center seam are vertically bent; in step 3, after the plate body is continuously bent to form a closed-loop structure, the two ends of the plate body are assembled on a wall portion to form corresponding upper vertical ear plates and lower vertical ear plates; in step 4, after bolt holes are opened in the upper vertical ear plates and the lower vertical ear plates, the double-layer structure of the upper vertical ear plates and the lower vertical ear plates are temporarily fixed by temporary bolts respectively.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: 1. The prefabricated steel structure beam-column node connector is integrally formed, avoiding the strength loss, residual stress and processing cost problems caused by multi-plate welding. It has strong overall structural strength and excellent mechanical properties.

[0016] 2. This prefabricated steel structure beam-column node connector is based on a sophisticated structural design. During installation, it can establish multiple coordination relationships with the beams and columns, and significantly improve the stability of the connection through the synergy of geometric constraints and friction.

[0017] 3. Based on the above technical characteristics, the number of openings in connectors and beams and columns can be effectively reduced, which not only improves the installation efficiency, but also retains the cross-sectional integrity of the connectors and beams and columns to the maximum extent, ensuring the structural strength.

[0018] 4. The prefabricated steel structure beam-column node connector is fixedly connected to the steel column body by a sleeve-type method, and is suitable for steel columns of square, H-shaped, I-shaped, grooved and other specifications; the upper vertical ear plate, the lower vertical ear plate, the two upper horizontal ear plates and the two lower horizontal ear plates can simultaneously establish a matching relationship with the web and flange of the steel beam, and are suitable for H-shaped, I-shaped and T-shaped steel beams with flange and web structures, so that the prefabricated steel structure beam-column node connector has good applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] Figure 1FIG. 4 is a schematic diagram of the structure of the connecting member in the first embodiment.

[0021] Figure 2 Schematic diagram of the matching status of the connecting parts and the steel beam.

[0022] Figure 3 This is one of the schematic diagrams showing the coordination of steel beams, steel columns and connecting parts.

[0023] Figure 4 This is the second schematic diagram of the coordination status of steel beams, steel columns and connecting parts.

[0024] Figure 5 This is the third schematic diagram of the coordination status of steel beams, steel columns and connecting parts.

[0025] Figure 6 FIG. 4 is a schematic diagram of the structure of the connecting member in the second embodiment.

[0026] Figure 7 Schematic diagram of the structure of the connecting member in the third embodiment.

[0027] Figure 8 It is a schematic diagram of the structure of the unfolded sheet.

[0028] Fig. 9 for Figure 8 Schematic diagram of the structure of the unfolded sheet after bending along the bending line a.

[0029] Fig.10 for Fig. 9 Schematic diagram of the structure of the unfolded sheet after being bent along the bending line b.

[0030] Fig.11 for Fig. 9 Schematic diagram of the structure of the unfolded sheet after being bent along the bending line c.

[0031] Fig.12 This is a schematic diagram of the structure after the unfolded sheet has completed all bending and forming.

[0032] Fig.13 for Figure 1 Schematic diagram of the coordination between the middle connector and the temporary bolts.

[0033] In the figure, 1. wall, 2. lower horizontal ear plate, 3. bolt hole, 4. center seam, 5. upper horizontal ear plate, 6. upper vertical ear plate, 7. lower vertical ear plate, 8. steel column, 9. mounting bolts, 10. steel beam, 101. flange, 102. web, 11. joint, 12. connection part, 13. fastening bolts, 14. temporary bolts, 15. unfolded sheet, 16. bending line a, 17. bending line b, 18. bending line c. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-Figure 3 As shown, in this embodiment, the assembled steel structure beam-column node connector includes a rectangular frame, which is used to be mounted and fixed on the steel column 8. The rectangular frame is formed by continuous bending of a single plate body, and is a closed-loop structure with four wall portions 1. A center seam 4 is opened in the middle of each wall portion 1 in the horizontal direction. The plate body portion on the upper side of the center seam 4 is bent to form an upper vertical ear plate 6 extending outward, and the plate body portion on the lower side of the center seam 4 is bent to form a lower vertical ear plate 7 extending outward; the upper vertical ear plate 6 and the lower vertical ear plate 7 are consistent in shape and are both double-layer structures; the upper vertical ear plate 6 and the lower vertical ear plate 7 located on the same wall portion 1 are staggered and distributed, and at the beam-column node During installation, the upper vertical ear plate 6 and the lower vertical ear plate 7 are clamped on both sides of the web 102 of the steel beam 10; the top of each wall portion 1 is provided with two upper horizontal ear plates 5 formed by vertically bending outward, and the two upper horizontal ear plates 5 are located on both sides of the upper vertical ear plates 6 and the upper ends of the three are flush; the bottom end of each wall portion 1 is provided with two lower horizontal ear plates 2 formed by vertically bending outward, and the two lower horizontal ear plates 2 are located on both sides of the lower vertical ear plates 7 and the lower ends of the three are flush; the upper horizontal ear plates 5 and the lower horizontal ear plates 2 are used to support and fix the flange 101 of the steel beam 10; bolt holes 3 are provided on the rectangular frame, the upper vertical ear plates 6, the lower vertical ear plates 7, the upper horizontal ear plates 5 and the lower horizontal ear plates 2.

[0036] See also Figure 2-Figure 5As shown, when installing and constructing the beam-column node, select the assembled steel structure beam-column node connector that matches the beam-column specifications, put the connector on the column body of the steel column 8, and fasten the connector to the steel column 8 by installing bolts 9 and matching the bolt holes 3 on the rectangular frame; place the web 102 of the steel beam 10 between the corresponding upper vertical ear plates 6 and lower vertical ear plates 7, and place the flanges 101 on both sides of the top of the steel beam 10 on the upper sides of the two upper horizontal ear plates 5 respectively. If the bottom of the steel beam 10 also has flanges 101 on both sides, the two wings at the bottom The flange 101 is located at the lower side of the two lower horizontal ear plates 2; finally, by installing the bolts 9 and cooperating with the bolt holes 3, the upper vertical ear plates 6 and the lower vertical ear plates 7 clamp the web 102 of the steel beam 10 and achieve a fixed connection, so that the flange 101 at the top of the steel beam 10 is fixedly connected to the two upper horizontal ear plates 5, and the flange 101 at the bottom of the steel beam 10 is fixedly connected to the two lower horizontal ear plates 2, thereby achieving a stable connection between the steel beam 10 and the steel column 8. In the above manner, with the help of the connecting parts, up to four steel beams 10 can be orthogonally fixedly connected to the steel column 8 in sequence.

[0037] The prefabricated steel structure beam-column node connector disclosed in this embodiment is integrally formed, avoiding the strength loss, residual stress and processing cost problems caused by multi-plate welding, and has strong overall structural properties and excellent mechanical properties. At the same time, based on the sophisticated structural design, the connector can establish multiple coordination relationships with the beams and columns during installation, and significantly improve the connection stability through the synergistic effect of geometric constraints and friction. Based on the above factors, the number of openings in the connectors and beams and columns can be effectively reduced, which not only improves the installation efficiency, but also retains the cross-sectional integrity of the connectors and beams and columns to the maximum extent, thereby ensuring structural strength.

[0038] like Figure 3-Figure 5 As shown, the connector is fixedly connected to the steel column 8 in a sleeve manner, and is suitable for steel columns 8 of square, H-shaped, I-shaped, grooved and other specifications. The upper vertical ear plate 6, the lower vertical ear plate 7, the two upper horizontal ear plates 5 and the two lower horizontal ear plates 2 can simultaneously establish a matching relationship with the web 102 and the flange 101 of the steel beam 10, and is suitable for H-shaped, I-shaped and T-shaped steel beams 10 with flange 101 and web 102 structures, thereby making the assembled steel structure beam-column node connector have good applicability.

[0039] like Figure 1-Figure 3As shown, in the assembled steel structure beam-column node connector disclosed in the present embodiment, the plate body is divided into two parts, an upper part and an lower part, by a center seam 4, and the upper and lower parts are respectively bent to form an upper vertical ear plate 6 and a lower vertical ear plate 7. On the one hand, the contact area between the connector and the steel beam 10 is ensured. On the other hand, the upper vertical ear plate 6 and the lower vertical ear plate 7 can clamp the web 102 of the steel beam 10 and respectively abut against the flange 101 of the steel beam 10, thereby clamping and positioning the steel beam 10, further improving the fixing effect of the steel beam 10. In addition, since the upper vertical ear plate 6 and the lower vertical ear plate 7 are a double-layer structure based on the molding process, the bearing strength of the upper vertical ear plate 6 and the lower vertical ear plate 7 is significantly improved.

[0040] In summary, the prefabricated steel structure beam-column node connector can meet the requirements of modern large-span and high-rise buildings for high strength, high stiffness and high construction efficiency of node connectors, and has significant engineering application value and economic advantages.

[0041] Since the rectangular frame of the assembled steel structure beam-column node connector is formed into a closed loop structure by bending a plate, there must be a docking portion. In order to improve the overall strength of the connector, the docking portion needs to be reinforced. To solve this technical problem, the present invention provides three preferred solutions, specifically: First, see Figure 1 In the structure of the connecting member in the first embodiment shown, the upper vertical ear plate 6 and the lower vertical ear plate 7 on a wall portion 1 are assembled by the two ends of the plate body, that is, the two ends of the plate body cooperate to form the corresponding upper vertical ear plate 6 and the lower vertical ear plate 7 on the wall portion 1; Figure 3 As shown, when the upper vertical ear plate 6 and the lower vertical ear plate 7 on the wall portion 1 are fastened to the web 102 of the steel beam 10 by installing bolts 9, the two ends of the plate body are also firmly connected to form a continuous force transmission path, so that there is no need to perform additional welding on the two ends of the plate body; Second, see Figure 6 The structure of the connecting member in the second embodiment shown is that the two ends of the plate body are butted on a wall portion 1 of the rectangular frame, and the butt joint 11 is welded to fix the two ends of the plate body; Third, see Figure 7 In the structure of the connecting member in the third embodiment, the two ends of the plate body are respectively provided with connecting parts 12 , and the two connecting parts 12 are matched at the corners of the rectangular frame and fixedly connected by fastening bolts 13 .

[0042] Preferably, Figure 1 , Figure 3 As shown, the upper transverse ear plate 5 and the lower transverse ear plate 2 are both in a trapezoidal shape, thereby saving materials for the connecting parts and reducing the dead weight while meeting the strength requirements.

[0043] Preferably, Figure 1 , Figure 3 As shown, the rectangular frame is provided with bolt holes 3 only on a pair of opposite wall portions 1 .

[0044] At the same time, the present invention provides a method for manufacturing an assembled steel structure beam-column node connector, comprising the following steps: Step 1: Cutting materials; See also Figure 8 As shown, according to the design load and shape size of the assembled steel structure beam-column node connector, a steel plate of corresponding specifications is selected, and an unfolded plate 15 is manufactured by a laser cutting process; the unfolded plate 15 is in a long strip shape, including parts for forming four wall portions 1, four upper vertical ear plates, four lower vertical ear plates, eight upper horizontal ear plates 5 and eight lower horizontal ear plates 2, and a center seam 4 is opened on the unfolded plate 15; further, the edge of the center seam 4 is chamfered to reduce stress concentration during subsequent bending and avoid the generation of cracks; Step 2: Forming the upper vertical ear plate 6 and the lower vertical ear plate 7; See also Figure 8 , Fig. 9 As shown, along the bending line a16, the plate body parts on the upper and lower sides of each middle seam 4 are bent. When the upper vertical ear plates 6 and the lower vertical ear plates 7 corresponding to the upper and lower sides are of a circular bending structure, two sets of bending mechanisms should be used to bend the plate body parts on the upper and lower sides of the middle seam 4 at the same time, so that the upper vertical ear plates 6 and the lower vertical ear plates 7 are formed synchronously; because during the bending process of the upper vertical ear plates 6 and the lower vertical ear plates 7, the plate body parts at both ends of the middle seam 4 will move closer to the middle, and the upper vertical ear plates 6 and the lower vertical ear plates 7 will be bent. The vertical ear plate 6 and the lower vertical ear plate 7 are bent at the same time, which can ensure that the plate parts at both ends of the middle seam 4 are balanced in overall force during the bending process, and no unexpected deformation will occur; when the plate body is partially bent in a roundabout way, an auxiliary support device can be added during the bending process to prevent the plate body from being twisted or offset during the bending process; in addition, the plate body can be preheated before bending to reduce the internal stress during bending and improve the forming quality of the upper vertical ear plate 6 and the lower vertical ear plate 7; Step 3: Forming the upper transverse ear plate 5, the lower transverse ear plate 2 and the rectangular frame; See also Figure 9-11 As shown, the plate body is continuously bent to form a closed loop structure with four wall portions 1, and the upper vertical ear plate 6 and the lower vertical ear plate 7 are ensured to be located outside the corresponding wall portion 1; the upper horizontal ear plate 5 and the lower horizontal ear plate 2 are vertically bent outward; in order to facilitate the process, the bending sequence in this step is adjusted according to the equipment conditions, for example, see Fig. 9 , Fig.10 , Fig.12As shown, the plate body is first continuously bent, and after a closed loop structure is formed, the upper vertical ear plate 6 and the lower vertical ear plate 7 are bent; it is also possible, as Fig. 9 , Fig.11 , Fig.12 As shown, the upper vertical ear plate 6 and the lower vertical ear plate 7 are first bent, and then the plate body is continuously bent to form a closed loop structure; Step 4: Open the bolt hole 3; See also Fig.12 , Fig.13 As shown, the formed connecting parts are fixed, and the wall portion 1, the upper vertical ear plate 6, the lower vertical ear plate 7, the upper transverse ear plate 5 and the lower transverse ear plate 2 are clamped in sequence by a clamp, the shapes and directions of the above components are corrected, and corresponding bolt holes 3 are opened during the clamping process, thereby obtaining an assembled steel structure beam-column node connecting part; in this step, based on a processing reference, a clamp is used to correct the shapes and directions of the above components to improve the processing accuracy and facilitate the elimination of residual stress; since the bolt hole 3 is opened in this step, the accuracy of the opening position of the bolt hole 3 can be improved, thereby avoiding the accumulation of processing errors in the previous steps and affecting the position accuracy of the bolt hole 3.

[0045] In addition, after the assembled steel structure beam-column node connector is formed through the above process, corresponding surface treatment is performed according to the specific conditions of the use scenario to enhance the corrosion resistance of the connector and extend its service life.

[0046] In step 1, the two ends of the unfolded material plate 15 are flat ends. In step 3, after the plate body of the unfolded material plate 15 is continuously bent to form a closed loop structure, the two flat ends of the plate body are butted on a wall portion 1, and the butt seam 11 is welded to fix the two ends of the plate body in connection; thereby obtaining Figure 6 The connecting element is shown as being constructed in a second embodiment.

[0047] In step 1, connecting parts 12 are reserved at both ends of the unfolded material plate 15. In step 3, the connecting parts 12 are bent before the plate body is continuously bent. After a closed loop structure with four wall parts 1 is formed, the two connecting parts 12 are matched at the corners of the rectangular frame. In step 4, bolt holes 3 are opened on the connecting parts 12, and the two connecting parts 12 are fastened and connected by fastening bolts 13; thereby obtaining Figure 7 The connecting element shown is constructed in a third embodiment.

[0048] like Figure 1 , Figure 8 , Fig.12 , Fig.13As shown, when the upper vertical ear plate 6 and the lower vertical ear plate 7 on a wall portion 1 in the connecting piece are composed of the two ends of the plate body, in the step 1, both ends of the unfolded material plate 15 are provided with a middle seam 4, and the plate body parts on the upper and lower sides of the middle seam 4 are vertically bent, in the step 3, after the plate body is continuously bent to form a closed-loop structure, the two ends of the plate body are assembled on a wall portion 1 to form the corresponding upper vertical ear plate 6 and lower vertical ear plate 7, in the step 4, after the bolt holes 3 are opened in the upper vertical ear plate 6 and the lower vertical ear plate 7, the double-layer structure of the upper vertical ear plate 6 and the lower vertical ear plate 7 are temporarily fixed by temporary bolts 14, and the temporary bolts 14 are removed when the connecting piece is installed and used, thereby ensuring that the two ends of the plate body will not shift before the connecting piece is used, causing the overall deformation of the connecting piece, thereby ensuring the shape accuracy of the connecting piece.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0050] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

Claims

1. An assembled steel structure beam-column node connector, comprising a rectangular frame, characterized in that: The rectangular frame is formed by continuously bending a single plate body and is a closed loop structure having four wall portions (1). A center seam (4) is provided in the middle of each wall portion (1) in a horizontal direction. The plate body portion on the upper side of the center seam (4) is bent to form an upper vertical ear plate (6) extending outward, and the plate body portion on the lower side of the center seam (4) is bent to form a lower vertical ear plate (7) extending outward. The upper vertical ear plate (6) and the lower vertical ear plate (7) are of the same shape and both have a double-layer structure. The upper vertical ear plate (6) and the lower vertical ear plate (7) located on the same wall portion (1) are staggered. distribution; the top of each wall portion (1) is provided with two upper transverse ear plates (5) formed by vertically bending outwards, the two upper transverse ear plates (5) are located on both sides of the upper vertical ear plate (6) and the three upper ends are flush; the bottom of each wall portion (1) is provided with two lower transverse ear plates (2) formed by vertically bending outwards, the two lower transverse ear plates (2) are located on both sides of the lower vertical ear plate (7) and the three lower ends are flush; bolt holes (3) are provided on the rectangular frame, the upper vertical ear plate (6), the lower vertical ear plate (7), the upper transverse ear plate (5) and the lower transverse ear plate (2).

2. The assembled steel structure beam-column node connector according to claim 1 is characterized in that: An upper vertical ear plate (6) and a lower vertical ear plate (7) on a wall portion (1) are both formed by assembling two ends of a plate body.

3. The assembled steel structure beam-column node connector according to claim 1, characterized in that: The two ends of the plate body are butted on a wall portion (1) of the rectangular frame and the butt joint (11) is welded.

4. The assembled steel structure beam-column node connector according to claim 1, characterized in that: Connecting parts (12) are respectively provided at both ends of the plate body, and the two connecting parts (12) are matched at the corners of the rectangular frame and are fixedly connected by fastening bolts (13).

5. The assembled steel structure beam-column node connector according to claim 1, characterized in that: The upper transverse ear plate (5) and the lower transverse ear plate (2) are both in a trapezoidal shape.

6. The assembled steel structure beam-column node connector according to claim 1, characterized in that: The rectangular frame is provided with bolt holes (3) only on a pair of opposite wall portions (1).

7. A method for manufacturing the assembled steel structure beam-column node connector according to claim 1, comprising the following steps: Step 1: Cutting materials; A steel plate of corresponding specifications is selected and cut to obtain an unfolded plate (15); the unfolded plate (15) is in the shape of a long strip and includes a portion for forming four wall portions (1), four upper vertical ear plates, four lower vertical ear plates, eight upper horizontal ear plates (5) and eight lower horizontal ear plates (2); a center seam (4) is provided on the unfolded plate (15); Step 2: Forming the upper vertical ear plate (6) and the lower vertical ear plate (7); The plate body parts on the upper and lower sides of each middle seam (4) are bent, and when the upper and lower corresponding upper vertical ear plates (6) and lower vertical ear plates (7) are of a circular bending structure, two sets of bending mechanisms are used to simultaneously bend the plate body parts on the upper and lower sides of the middle seam (4), so that the upper vertical ear plates (6) and the lower vertical ear plates (7) are formed synchronously; Step 3: forming the upper transverse ear plate (5), the lower transverse ear plate (2) and the rectangular frame; The plate body is continuously bent to form a closed loop structure having four wall portions (1), and the upper transverse ear plate (5) and the lower transverse ear plate (2) are vertically bent outwards; Step 4: Drill bolt holes (3); The formed connecting piece is fixed, and the wall portion (1), the upper vertical ear plate (6), the lower vertical ear plate (7), the upper transverse ear plate (5) and the lower transverse ear plate (2) are clamped in sequence using a clamp to correct the shape and direction, and corresponding bolt holes (3) are opened during the clamping process, thereby obtaining an assembled steel structure beam-column node connecting piece.

8. The method for manufacturing the assembled steel structure beam-column node connector according to claim 7, characterized in that: In step 1, the two ends of the unfolded material plate (15) are planar ends. In step 3, after the plate body of the unfolded material plate (15) is continuously bent to form a closed loop structure, the two planar ends of the plate body are butt-jointed on a wall portion (1), and the butt joint (11) is welded to fix the two ends of the plate body in a fixed connection.

9. The method for manufacturing the assembled steel structure beam-column node connector according to claim 7, characterized in that: In the step 1, connecting portions (12) are reserved at both ends of the unfolded material plate (15); in the step 3, the connecting portions (12) are bent before the plate body is continuously bent; after a closed loop structure having four wall portions (1) is formed, the two connecting portions (12) are matched at the corners of the rectangular frame; in the step 4, bolt holes (3) are opened on the connecting portions (12), and the two connecting portions (12) are fastened and connected by tightening bolts (13).

10. The method for manufacturing the assembled steel structure beam-column node connector according to claim 7, characterized in that: In the step 1, both ends of the unfolded material plate (15) are provided with a center seam (4), and the plate body parts on the upper and lower sides of the center seam (4) are vertically bent. In the step 3, after the plate body is continuously bent to form a closed loop structure, the two ends of the plate body are assembled on a wall portion (1) to form a corresponding upper vertical ear plate (6) and a lower vertical ear plate (7). In the step 4, after the bolt holes (3) are opened in the upper vertical ear plate (6) and the lower vertical ear plate (7), the double-layer structure of the upper vertical ear plate (6) and the lower vertical ear plate (7) are temporarily fixed by temporary bolts (14).

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