A space rigid frame joint reinforcing structure

Abstract

The present application relates to a kind of space rigid frame node reinforcing structure, space rigid frame node reinforcing structure includes crossbeam, stand, diagonal beam, reinforcing support, reinforcing support includes horizontal plate, vertical plate, rib plate, rib plate is connected between horizontal plate and vertical plate, crossbeam is welded and fixed with stand, horizontal plate is welded and fixed with crossbeam, vertical plate is welded and fixed with stand;Diagonal beam is between crossbeam and stand, diagonal beam has the inner end close to the horizontal plate and / or vertical plate of reinforcing support, the inner end of diagonal beam is provided with slot, slot is inserted for rib plate, reinforcing support and the welding fixed mode of diagonal beam is at least one described below: (a) the inner end surface of diagonal beam and vertical plate and / or horizontal plate are welded and fixed by cooperation;(b) the slot wall of the slot of diagonal beam and the plate surface of rib plate are welded and fixed by cooperation;The rib plate of reinforcing support has enough space for diagonal beam to support in the position close to the angle between crossbeam and stand, node is good in rigidity and strength, it is suitable for the space rigid frame of requiring node rigidity and strength.

Description

Technical Field

[0001] This invention relates to the field of building technology with three-dimensional frame structures, and more specifically to a spatial rigid frame node reinforcement structure. Background Technology

[0002] A spatial rigid frame generally refers to a steel structural frame with a large spatial span, commonly used as the rigid main skeleton of a building. A spatial rigid frame is typically constructed from transverse, longitudinal, and diagonal profiles welded together or a combination of welding and bolting. These profiles form the horizontal beams, columns, and diagonal beams of the spatial rigid frame, respectively. The connections between these beams, columns, and diagonal beams constitute the nodes of the spatial rigid frame. These nodes often bear a combination of axial forces, shear forces, and bending moments, resulting in complex stress conditions. To ensure good stiffness and strength at these nodes, reinforcement is usually required.

[0003] Existing technologies include beam-column joint reinforcement structures, such as the prefabricated H-shaped steel building corner brace joint structure disclosed in Chinese invention patent application CN112814157A, which includes steel columns (uprights), steel beams (horizontal beams), and corner braces (reinforcing supports). The corner braces are set at the angle between the uprights and the beams. The corner braces have vertical plates for connecting to the uprights and horizontal plates for connecting to the beams. The vertical plates and horizontal plates are arranged perpendicularly, and ribs are provided between the vertical plates and the horizontal plates. Bolt holes are provided on the portions of the vertical plates on both sides of the ribs for bolting to the vertical plates. Bolt holes are also provided on the portions of the horizontal plates on both sides of the ribs for bolting to the horizontal plates.

[0004] While the aforementioned beam-column joint can be reinforced using corner braces, its application in spatial rigid frames with inclined beams still has limitations. Because the space at the beam-column angle is occupied by the corner braces, and the space on both sides of the corner brace ribs is occupied by connecting bolts, the inclined beam lacks a direct connection point at the beam-column angle. Therefore, it needs to be fixed to the part of the beam or column that is not connected to the corner brace. This results in the inclined beam not being directly supported at the beam-column angle, which is not conducive to ensuring structural strength and stiffness. Summary of the Invention

[0005] The purpose of this invention is to provide a spatial rigid frame node reinforcement structure to solve the problem that existing node reinforcement structures are not well applied to spatial rigid frames.

[0006] The technical solution of the spatial rigid frame node reinforcement structure of the present invention is as follows:

[0007] A spatial rigid frame node reinforcement structure includes a crossbeam, columns, and a reinforcing bracket. The reinforcing bracket is located at the angle between the crossbeam and the columns. The reinforcing bracket includes a horizontal plate, a vertical plate, and ribs. The horizontal plate is connected to the crossbeam, the vertical plate is connected to the columns, and the ribs connect between the horizontal plate and the vertical plate. The crossbeam and columns are welded and fixed, as are the horizontal plate and the vertical plate. The structure also includes an inclined beam located between the crossbeam and the columns. The inclined beam has an inner end near the horizontal plate and / or the vertical plate of the reinforcing bracket, and the inner end has an inner end face. The inner end of the inclined beam has a slot with a groove on the inner end face of the inclined beam. Two clearance openings are provided, located on two sides of the inclined beam and facing the horizontal and vertical plates respectively. The slots are for inserting the ribs. The clearance openings are used to allow clearance for the parts of the ribs outside the slots that are connected to the horizontal and vertical plates respectively. The groove wall of the slot and the plate surface of the rib are in a stop fit in a direction perpendicular to the plate surface of the rib. The reinforcing bracket is welded and fixed to the inclined beam. The welding and fixing method of the reinforcing bracket and the inclined beam is at least one of the following: (a) the inner end face of the inclined beam is welded and fixed to the vertical plate and / or the horizontal plate; (b) the groove wall of the slot of the inclined beam is welded and fixed to the plate surface of the rib.

[0008] Beneficial effects: By welding reinforcing supports at the intersections of beams, columns, and diagonal beams, sufficient space is provided on both sides of the ribs of the reinforcing supports for the diagonal beams to be supported near the angle between the beams and columns. The diagonal beams are secured by slots at their inner ends for the reinforcing supports' ribs to be inserted and welded in place. This insertion-type fixing of the ribs with the diagonal beams helps ensure the strength of the joints. Furthermore, the welded joint structure, where beams are welded to columns, the horizontal plates of the reinforcing supports are welded to beams, the vertical plates of the reinforcing supports are welded to columns, and the diagonal beams are welded to the reinforcing supports, eliminates the need for bolt connections. This joint structure offers good rigidity and strength, making it suitable for space frames requiring high rigidity and strength at the joints.

[0009] Furthermore, the inner end face of the inclined beam is inclined, and the inner end face of the inclined beam is in contact with the surface of the vertical plate or horizontal plate. The inner end face of the inclined beam is welded and fixed to the vertical plate or horizontal plate.

[0010] Beneficial effects: Welding and fixing the inclined beam to the vertical or horizontal plate ensures the connection strength and allows the inner end of the inclined beam to be directly supported on the horizontal or vertical plate of the reinforcing bracket. Since the horizontal or vertical plate is directly welded and fixed to the horizontal beam or column, the force on the inclined beam can be transferred to the horizontal or vertical plate through the horizontal or vertical plate, which is beneficial to the stability of the support.

[0011] Furthermore, the surface of the upright plate is attached to the inner end face of the inclined beam, and the upright plate and the inclined beam are welded and fixed together.

[0012] Beneficial effects: Welding and fixing the inner end of the inclined beam to the upright plate of the reinforcing bracket allows the upright to support the inclined beam. The force on the inclined beam can be transferred to the upright, making the upright more stable, which helps to improve the strength of the joint structure.

[0013] Furthermore, the slot opening is chamfered.

[0014] Beneficial effects: The slot opening is flared, which facilitates the insertion of the reinforcing rib plate. At the same time, it avoids the transition area where the rib plate meets the horizontal or vertical plate, which helps to ensure that the inner end face of the inclined beam fits tightly with the horizontal or vertical plate.

[0015] Furthermore, the horizontal board is connected to the vertical board.

[0016] Beneficial effects: It is easy to manufacture, and at the same time, it helps to increase the contact area between the reinforcing bracket and the beam and column, so as to increase the length of the weld and help to ensure the structural strength.

[0017] Furthermore, the horizontal and vertical plates are integrated, while the ribs are separately installed and welded together with the horizontal and vertical plates.

[0018] Beneficial effects: This method allows the use of angle steel to form horizontal and vertical plates, and then the angle steel and ribs are welded together to form a reinforcing support, which is convenient for manufacturing.

[0019] Furthermore, the joint between the horizontal plate and the vertical plate is provided with a rounded transition, and the rib plate is provided with a clearance notch near the rounded transition.

[0020] Beneficial effect: By setting the avoidance notch, the rounded corner transition can be avoided when the rib plate connects with the horizontal plate and the vertical plate, which is conducive to the good fit between the side of the rib plate and the surface of the horizontal plate and the vertical plate.

[0021] Furthermore, the rib includes a first elevation surface attached to the vertical plate, a second elevation surface away from the vertical plate, a first horizontal surface attached to the horizontal plate, a second horizontal surface away from the horizontal plate, and an outer inclined surface away from the intersection of the horizontal plate and the vertical plate. The first elevation surface intersects the second horizontal surface perpendicularly, the second elevation surface intersects the first horizontal surface perpendicularly, and the outer inclined surface intersects the second elevation surface and the second horizontal surface.

[0022] Beneficial effects: The setting of the second facade and the second horizontal facade helps to ensure that the part of the rib plate close to the horizontal plate and the vertical plate can form a good weld with the horizontal plate and the vertical plate, which helps to ensure the welding effect.

[0023] Furthermore, the beams and columns are welded around their perimeter, forming a ring of weld seams at the intersection of the beams and columns.

[0024] Beneficial effects: By using circumferential welding, a circumferential weld is formed at the junction of the beam and the column, which helps to ensure the structural strength and meet the stiffness requirements of the spatial frame.

[0025] Furthermore, the beams, columns, and diagonal beams are all formed from square tubing.

[0026] Beneficial effects: The square tube structure has high strength and all four sides are flat, which makes it easy to connect four crossbeams on a single column and to weld and fix the reinforcing bracket. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the spatial rigid frame node reinforcement structure in Embodiment 1 of the present invention;

[0028] Figure 2 for Figure 1 A front view of the reinforcing bracket in the middle;

[0029] Figure 3 for Figure 1 Side view of the reinforcing bracket in the middle;

[0030] Figure 4 for Figure 1 A schematic diagram of the inner end structure of the first inclined beam in the middle;

[0031] Figure 5 This is a schematic diagram of the spatial rigid frame node reinforcement structure in Embodiment 2 of the present invention.

[0032] In the diagram: 1. First upright; 2. First crossbeam; 3. Second crossbeam; 4. First diagonal beam; 41. Slot; 5. Reinforcing bracket; 51. Upright plate; 52. Horizontal plate; 53. Rib plate; 6. Connecting crossbeam; 7. Third crossbeam; 8. Second diagonal beam; 9. Second upright. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0035] It should be noted that relational terms such as "first" and "second" that may appear in the specific embodiments of the present invention are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the possible phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] In the description of this invention, unless otherwise explicitly specified and limited, the term "provided with" should be interpreted broadly. For example, the object "provided with" can be a part of the body, or it can be separately arranged from the body and connected to the body. This connection can be a detachable connection or a non-detachable connection. Those skilled in the art can understand the specific meaning of the above terms in this invention through specific circumstances.

[0038] The present invention will be further described in detail below with reference to embodiments.

[0039] Embodiment 1 of the spatial rigid frame node reinforcement structure of the present invention:

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the spatial frame node reinforcement structure in this embodiment is a reinforcement structure for the node located at the top layer of the spatial frame. The spatial frame node reinforcement structure includes columns, beams, reinforcing supports 5, and diagonal beams. The column is a first column 1. Beams are provided on both sides of the first column 1 and on one side in the front-back direction. The beams on the left and right sides of the first column 1 are the first beam 2 and the second beam 3. The beam on the front-back direction of the first column 1 is the connecting beam 6. Reinforcing supports 5 are provided at the angle between the first beam 2 and the first column 1, the angle between the second beam 3 and the first column 1, and the angle between the connecting beam 6 and the first column 1. There are two diagonal beams, which are fixed to the reinforcing supports 5 at the angle between the first beam 2 and the first column 1 and the angle between the second beam 3 and the first column 1, respectively. The diagonal beam between the first beam 2 and the first column 1 is the first diagonal beam 4. The first diagonal beam 4 can support the angle between the first beam 2 and the first column 1 through the reinforcing supports 5.

[0041] The beams, columns, and diagonal beams are all made of square tubular profiles. The beams are arranged perpendicular to the columns, while the diagonal beams are arranged at an angle to the columns and beams. The end faces of the first beam 2 and the second beam 3 abut against the left and right sides of the first column 1, respectively. The end face of the connecting beam 6 abuts against one side of the first column 1 in the front-rear direction. The intersections of the first beam 2 and the first column 1 are welded around their perimeter, as are the intersections of the second beam 3 and the first column 1, and the intersections of the connecting beam 6 and the first column 1. The beams are welded to the columns, forming a ring of weld at their intersections, which helps ensure structural strength and meets the rigidity requirements of the spatial frame. By using square tubular profiles, the structure has high strength, and the four sides are all flat, facilitating the welding of the columns and beams, and also facilitating the welding and fixing of the reinforcing bracket 5.

[0042] The reinforcing bracket 5 includes a horizontal plate 52, a vertical plate 51, and a rib plate 53. The horizontal plate 52 is perpendicular to the vertical plate 51 and arranged at a right angle. The rib plate 53 connects the horizontal plate 52 and the vertical plate 51, and the surface of the rib plate 53 is perpendicular to the surfaces of the horizontal plate 52 and the vertical plate 51. The horizontal plate 52 is connected to the horizontal beam, and the vertical plate 51 is connected to the column. The horizontal plate 52 is welded and fixed to the horizontal beam, and the vertical plate 51 is welded and fixed to the column. The horizontal plate 52 and the vertical plate 51 are connected and integrally set, while the rib plate 53 is separately set and welded together with the horizontal plate 52 and the vertical plate 51. This allows the horizontal plate 52 and the vertical plate 51 to be formed using angle steel, and then the angle steel and the rib plate 53 are welded together to form the reinforcing bracket 5, which is convenient for manufacturing.

[0043] The joint between the horizontal plate 52 and the vertical plate 51 is provided with a rounded transition. The rib plate 53 is provided with an avoidance notch near the rounded transition. By providing the avoidance notch, the rounded transition can be avoided when the rib plate 53 is connected to the horizontal plate 52 and the vertical plate 51, which is conducive to the good fit between the side of the rib plate 53 and the surface of the horizontal plate 52 and the vertical plate 51.

[0044] The rib 53 is pentagonal and includes a first vertical surface attached to the vertical plate 51, a second vertical surface away from the vertical plate 51, a first horizontal surface attached to the horizontal plate 52, a second horizontal surface away from the horizontal plate 52, and an outer inclined surface away from the intersection of the horizontal plate 52 and the vertical plate 51. The first vertical surface intersects the second horizontal surface perpendicularly, the second vertical surface intersects the first horizontal surface perpendicularly, and the outer inclined surface intersects both the second vertical surface and the second horizontal surface. The second vertical surface is flush with the end face of the horizontal plate 52, and the second horizontal surface is flush with the end face of the vertical plate 51. The arrangement of the second vertical surface and the second horizontal surface helps to ensure that the corners of the rib 53 near the horizontal plate 52 and the vertical plate 51 have sufficient area for welds, thereby forming good welds with the horizontal plate 52 and the vertical plate 51 and ensuring a good welding effect.

[0045] The fixing structure of the two inclined beams and the reinforcing bracket 5 is the same. Taking the first inclined beam 4 as an example, the inner end of the first inclined beam 4 near the angle between the first horizontal beam 2 and the first column 1 is provided with a slot 41. The slot 41 has a groove on the inner end face of the first inclined beam 4 and clearance openings on both sides in the direction perpendicular to the center line of the first inclined beam 4. The clearance openings on both sides face the horizontal plate 52 and the vertical plate 51, respectively. The slot 41 is for the rib plate 53 of the reinforcing bracket 5 to be inserted. The clearance openings are used to avoid the part of the rib plate 53 outside the slot 41. The groove wall of the slot 41 is in contact with the plate surface of the rib plate 53. The groove wall of the slot 41 and the plate surface of the rib plate 53 are in a stop fit in the direction perpendicular to the plate surface of the rib plate. The rib plate 53 is welded and fixed to the groove wall of the slot of the first inclined beam 4.

[0046] The inner end face of the first inclined beam 4 is inclined. When the first inclined beam 4 is fixed to the reinforcing bracket 5 between the first column 1 and the first crossbeam 2, the inner end face of the first inclined beam 4 becomes vertical and parallel to the surface of the upright plate 51. Thus, after the rib plate 53 is inserted into the slot 41 of the first inclined beam 4, the inner end face of the first inclined beam 4 can be in contact with the surface of the upright plate 51. The inner end face of the first inclined beam 4 is welded to the upright plate 51. The joint between the first inclined beam 4 and the reinforcing bracket 5 is welded. The inclined beam is not only welded to the rib plate 53, but also to the upright plate 51. This ensures the connection strength and allows the inner end of the inclined beam to be directly supported on the upright plate 51 of the reinforcing bracket 5. The upright plate 51 is directly welded to the column, so the force on the inclined beam can be transferred to the column through the upright plate 51, which is beneficial for stable support. The slot 41 has a chamfer at the opening, making the slot 41 an flared structure, which facilitates the insertion of the rib 53 of the reinforcing bracket 5. At the same time, it can avoid the transition part where the rib 53 meets the upright plate 51, which is conducive to the inner end face of the inclined beam and the upright plate 51 fitting tightly.

[0047] Since the tensile and compressive capacities of the profile are greater than its transverse shear resistance, and the provided reinforcement bracket 5 is located at the position where the profile is subjected to transverse shear force, the transverse shear resistance at the node is enhanced, and the flexural performance of the node is also enhanced. Thus, by welding the reinforcement bracket 5 at the cross nodes of the crossbeam, column, and diagonal beam, the nodes of the space frame structure welded with profiles are strengthened, enhancing the stiffness and strength at the connection points. The structure is simple and the construction is convenient.

[0048] By welding the reinforcement bracket 5 at the cross nodes of the crossbeam, column, and diagonal beam, the crossbeam is welded to the column, the horizontal plate 52 of the reinforcement bracket 5 is welded to the crossbeam, the vertical plate 51 of the reinforcement bracket 5 is welded to the column, and the diagonal beam is welded to the reinforcement bracket 5. For such a welded connection node structure, bolt connection is not required. There is enough space on both sides of the rib plate 53 of the reinforcement bracket 5 for the diagonal beam to support at a position close to the angle between the crossbeam and the column, which is applicable to the node structure of the space frame with diagonal beams. The diagonal beam has a slot 41 at its inner end for the rib plate 53 of the reinforcement bracket 5 to be inserted and welded and fixed. By using the inserted and fixed rib plate 53 in cooperation with the diagonal beam, it is beneficial to ensure the node strength. All parts of the node are welded and fixed together, and the stiffness and strength at the node are good, which is applicable to the space frame requiring node stiffness and strength.

[0049] Embodiment 2 of the space frame node strengthening structure of the present invention:

[0050] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the space frame node strengthening structure is the node strengthening structure at the top layer of the space frame, and there is no diagonal beam above the first crossbeam and the second crossbeam. In this embodiment, as Figure 5 shown, the space frame node strengthening structure is the node strengthening structure at the middle layer of the space frame. The column is the second column 9. Crossbeams are welded on both the left and right sides of the second column 9. The crossbeam on the right side of the second column 9 is the third crossbeam 7. Diagonal beams are provided both above and below the third crossbeam 7. Diagonal beams are also provided both above and below the crossbeam on the left side of the second column 9. The second column 9 and the crossbeams on both the left and right sides of the second column 9, and each diagonal beam form a "rice" - shaped layout. Reinforcement brackets 5 are provided at the upper and lower angles between the second column 9 and the crossbeams on both sides. The structures of the reinforcement brackets 5 in Embodiments 1 and 2 are the same. The diagonal beam welded and fixed to the reinforcement bracket at the angle between the second column 9 and the third crossbeam 7 is the second diagonal beam 8. The fixing structure of the second diagonal beam 8 and the reinforcement bracket 5 is the same as the fixing structure of the other diagonal beams and the reinforcement bracket, and the welded and fixed structure of the second diagonal beam 8 and the reinforcement bracket 5 in this Embodiment 2 and the welded and fixed structure of the first diagonal beam and the corresponding reinforcement bracket in the above Embodiment 1 are also the same.

[0051] Embodiment 3 of the space frame node strengthening structure of the present invention:

[0052] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the surface of the vertical plate is attached to the inner end face of the inclined beam, and the vertical plate and the inclined beam are welded together. In this embodiment, the surface of the horizontal plate is attached to the inner end face of the inclined beam, and the horizontal plate and the inclined beam are welded together.

[0053] Embodiment 4 of the spatial rigid frame node reinforcement structure of the present invention:

[0054] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the horizontal plate and the vertical plate are integrally formed. In this embodiment, the horizontal plate and the vertical plate are separately formed and welded to the ribs respectively, with the near ends of the horizontal plate and the vertical plate spaced apart.

[0055] Embodiment 5 of the spatial rigid frame node reinforcement structure of the present invention:

[0056] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the beams and columns are formed of square tubing, while in this embodiment, the beams and columns are formed of I-beams.

[0057] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A spatial rigid frame node reinforcement structure, comprising a beam, a column, and a reinforcing bracket (5), wherein the reinforcing bracket (5) is disposed at the angle between the beam and the column, and the reinforcing bracket (5) includes a horizontal plate (52), a vertical plate (51), and a rib plate (53), wherein the horizontal plate (52) is connected to the beam, the vertical plate (51) is connected to the column, and the rib plate (53) is connected between the horizontal plate (52) and the vertical plate (51), characterized in that, The horizontal beam is welded and fixed with the stand column, the horizontal plate (52) is welded and fixed with the horizontal beam, and the vertical plate (51) is welded and fixed with the stand column; further comprising a diagonal beam, the diagonal beam is between the horizontal beam and the stand column, the diagonal beam has an inner end close to the horizontal plate (52) and / or the vertical plate (51) of the reinforcing support (5), and the inner end has an inner end face; the inner end of the diagonal beam is provided with a slot (41), the slot (41) has a slot opening on the inner end face of the diagonal beam and two avoiding openings, the two avoiding openings are respectively on two side faces of the diagonal beam and respectively face the horizontal plate (52) and the vertical plate (51), the slot (41) is for inserting the rib plate (53), the avoiding openings are for avoiding the part of the rib plate (53) outside the slot (41) and respectively connecting with the horizontal plate (52) and the vertical plate (51), and the slot wall of the slot (41) and the plate face of the rib plate (53) are in a stopper cooperation in a direction perpendicular to the plate face of the rib plate (53); the reinforcing support (5) is welded and fixed with the diagonal beam, and the welding and fixing mode of the reinforcing support (5) and the diagonal beam is at least one of the following modes (a) and (b): (a) the inner end face of the diagonal beam is welded and fixed with the vertical plate (51) and / or the horizontal plate (52); (b) the slot wall of the slot (41) of the diagonal beam is welded and fixed with the plate face of the rib plate (53).

2. The space frame node reinforcement structure of claim 1, wherein, The inner end face of the diagonal beam is a bevel face, the inner end face of the diagonal beam is attached to the plate face of the vertical plate (51) or the horizontal plate (52), and the inner end face of the diagonal beam is welded and fixed with the vertical plate (51) or the horizontal plate (52).

3. The space frame node reinforcement structure of claim 2, wherein, The plate face of the vertical plate (51) is attached to the inner end face of the diagonal beam, and the vertical plate (51) is welded and fixed with the diagonal beam.

4. The space frame node reinforcement structure according to claim 2, wherein, The slot opening of the slot (41) is provided with a chamfer.

5. The space frame joint reinforcement structure according to claim 1 or 2 or 3 or 4, characterized in that, The horizontal plate (52) is connected with the vertical plate (51).

6. The space frame node reinforcement structure according to claim 5, wherein, The horizontal plate (52) and the vertical plate (51) are integrally arranged, and the rib plate (53) is separately arranged and welded and connected with the horizontal plate (52) and the vertical plate (51).

7. The space frame node reinforcement structure according to claim 6, wherein, The horizontal plate (52) and the vertical plate (51) are provided with a round corner transition at a joint, and the rib plate (53) is provided with an avoiding notch at a position close to the round corner transition.

8. The space frame node reinforcement structure according to claim 6, wherein, The rib plate (53) comprises a first vertical face attached to the vertical plate (51), a second vertical face away from the vertical plate (51), a first horizontal face attached to the horizontal plate (52), a second horizontal face away from the horizontal plate (52), and an outer bevel face away from the intersection of the horizontal plate (52) and the vertical plate (51), the first vertical face and the second horizontal face are perpendicular to each other, the second vertical face and the first horizontal face are perpendicular to each other, and the outer bevel face intersects with the second vertical face and the second horizontal face.

9. The space frame node reinforcement structure of claim 1 or 2 or 3 or 4, wherein, The horizontal beam and the stand column are peripherally welded, and a circle of welds is formed at the intersection of the horizontal beam and the stand column.

10. The space frame node reinforcement structure of claim 1 or 2 or 3 or 4, wherein, The horizontal beam, the stand column and the diagonal beam are all formed by square tubes.

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