A beam-column connection node structure

Abstract

The present invention relates to the field of building construction technology, and discloses a beam-column connection node structure, in which a first annular plate and a second annular plate are provided in the inner cavity of the steel pipe column, so that the bending resistance of the steel pipe column is enhanced. A plurality of reinforcing corbels are provided on the outer wall of the steel pipe column, so that the shear resistance and torsion resistance of the steel pipe column are enhanced. After the concrete is poured, the first annular plate and the second annular plate connect the interior of the steel pipe column with the concrete into a whole, thereby improving the integrity of the steel pipe column, thereby preventing the steel pipe column from bending at the beam-column node, and improving the overall bearing capacity and stability of the beam-column structure. The plurality of reinforcing corbels increase the contact area between the steel pipe column and the concrete of the beam, thereby further improving the bending and shear bearing capacity of the beam-column structure node area. The present invention does not require drilling holes on the steel pipe column, and the construction process is simple, which can shorten the construction period, ensure construction quality, and improve the overall structural strength and stability of the steel structure building.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a beam-column connection node structure. Background Art

[0002] With the continuous development of the economy, in many large and medium-sized cities, medium and low-rise buildings can no longer meet the functional requirements of the city and the people's growing living needs. Therefore, the demand for high-rise and super-high-rise buildings is increasing. In frame structures, column-beam connection nodes (also known as beam-column nodes) are key components that ensure that beams and columns work together to form a structural integrity. Its stress performance directly affects the stiffness, stability and bearing capacity of the structural system. The core area of ​​the beam-column node is the intersection area of ​​the column and the beam. The core area of ​​the node will be subject to the combined action of horizontal lateral force, vertical shear force and bending moment. The stress is quite complex. If the node position is damaged, the consequences will be very serious and may even directly lead to the collapse of the entire building.

[0003] Existing steel structures typically use "M-shaped" beam-column joints, constructed by drilling holes in the side walls of steel columns to pass through corbels. This results in complex construction steps and a long construction period. Furthermore, existing multi-story steel structures often use double beams, which places significant pressure on the side walls of the steel columns. However, this construction method, which requires drilling holes in the steel columns, can lead to positioning deviations when securing the corbels, resulting in poor node formation quality and difficulty ensuring construction quality. Furthermore, drilling holes creates weak points at the steel columns' joints, making them prone to bending and deformation, making it impossible to guarantee the stability of the steel columns under lateral pressure.

[0004] Therefore, there is an urgent need for a beam-column connection node structure to solve the above problems. Summary of the Invention

[0005] Based on the above problems, the purpose of the present invention is to provide a beam-column connection node structure that can improve the bearing capacity of the beam-column structure, ensure the structural strength and stability of multi-story steel structure buildings, and has simple construction steps and can shorten the construction period.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A beam-column connection node structure, comprising:

[0008] Steel pipe columns, which are used to connect beams in a frame structure;

[0009] A first reinforcement assembly includes a first annular plate and a second annular plate, wherein the first annular plate and the second annular plate are axially spaced apart and arranged in the inner cavity of the steel pipe string and connected to the inner cavity wall of the steel pipe string;

[0010] The second reinforcement assembly includes a plurality of reinforcement corbels, which are distributed on the outer wall of the steel pipe column at intervals along the circumference of the steel pipe column and are configured to be embedded in the concrete of the beam.

[0011] As a preferred solution of the beam-column connection node structure of the present invention, the first reinforcement component also includes a plurality of vertical ribs, which are distributed in the inner cavity of the steel pipe column along the circumferential interval and connected to the inner cavity wall of the steel pipe column. One end of each of the vertical ribs is connected to the first annular plate, and the other end is connected to the second annular plate.

[0012] As a preferred solution of the beam-column connection node structure of the present invention, the plurality of reinforced corbels include shear corbels, and a plurality of the shear corbels are provided, and the plurality of shear corbels are distributed at intervals along the circumferential direction on the outer wall of the steel pipe column.

[0013] As a preferred solution of the beam-column connection node structure of the present invention, each of the shear corbels includes a first support plate, a second support plate and a support web, one end of the support web is connected to the first support plate, and the other end is connected to the second support plate.

[0014] As a preferred solution of the beam-column connection node structure of the present invention, the multiple reinforced corbels also include a first anti-torsion corbel, and the first anti-torsion corbels are provided in plurality. The multiple first anti-torsion corbels are circumferentially spaced on the outer wall of the steel pipe column above the multiple anti-shear corbels and are staggered with the multiple anti-shear corbels.

[0015] As a preferred solution of the beam-column connection node structure of the present invention, the multiple reinforced corbels also include a second anti-torsion corbel, and a plurality of the second anti-torsion corbels are provided. The multiple second anti-torsion corbels are distributed circumferentially on the outer wall of the steel pipe column below the multiple anti-shear corbels and correspond one-to-one with the multiple first anti-torsion corbels.

[0016] As a preferred solution of the beam-column connection node structure of the present invention, each of the first anti-torsion corbels is provided with a first anti-torsion rib, one side of the first anti-torsion rib is connected to the first anti-torsion corbel, and the other side is connected to the outer wall of the steel pipe column, and the first anti-torsion rib is located on the side of the first anti-torsion corbel facing the second anti-torsion corbel.

[0017] As a preferred solution of the beam-column connection node structure of the present invention, each of the second torsional corbels is provided with a second torsional rib, one side of the second torsional rib is connected to the second torsional corbel, and the other side is connected to the outer wall of the steel pipe column, and the second torsional rib is located on the side of the second torsional corbel facing the first torsional corbel, and is opposite to the first torsional rib.

[0018] As a preferred solution of the beam-column connection node structure of the present invention, a first opening is provided at one end of the first torsional corbel away from the steel pipe column along the extension direction of the first torsional corbel, and a second opening is provided at one end of the second torsional corbel away from the steel pipe column along the extension direction of the second torsional corbel.

[0019] As a preferred solution of the beam-column connection node structure of the present invention, multiple shear corbels, multiple first torsion corbels, and multiple second torsion corbels are evenly distributed on the outer wall of the steel pipe column, and multiple vertical ribs are evenly distributed on the inner wall of the steel pipe column.

[0020] The beneficial effects of the present invention are:

[0021] The beam-column connection node structure provided by the present invention enhances the bending resistance of the steel pipe column by installing first and second annular plates within the inner cavity of the steel pipe column. Multiple reinforcing brackets are circumferentially arranged on the outer wall of the steel pipe column, further enhancing the shear and torsional resistance of the steel pipe column. Specifically, after the concrete is poured into the steel pipe column, the multiple reinforcing brackets are embedded in the concrete of the beam, forming an integral part of the steel pipe column and the concrete, thus achieving a connection between the steel pipe column and the beam. When the steel pipe column at the beam-column joint is subjected to lateral pressure, the first and second annular plates connect the interior of the steel pipe column with the concrete, improving the integrity of the steel pipe column and preventing it from bending at the beam-column joint, effectively improving the load-bearing capacity and stability of the overall beam-column structure. Furthermore, the multiple reinforcing brackets increase the contact area between the steel pipe column and the concrete of the beam, further enhancing the bending bearing capacity of the beam-column joint area. When shear forces from the horizontal floor structure are transmitted to the joint, the multiple reinforcing brackets can resist the shear forces there, significantly improving the shear bearing capacity of the joint area. The beam-column connection node structure of the present invention does not require drilling holes in the steel pipe columns, has a simple construction process, can shorten the construction period, and can ensure construction quality, thereby improving the overall structural strength and stability of the steel structure building. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without any creative work.

[0023] Figure 1 It is a structural schematic diagram of a beam-column connection node structure provided by a specific embodiment of the present invention;

[0024] Figure 22 is a schematic structural diagram of a first reinforcement component of a beam-column connection node structure provided by a specific embodiment of the present invention;

[0025] Figure 3 2 is a schematic structural diagram of multiple shear corbels of a beam-column connection node structure provided by a specific embodiment of the present invention;

[0026] Figure 4 It is a structural schematic diagram of multiple first torsion-resistant brackets and multiple second torsion-resistant brackets of a beam-column connection node structure provided by a specific embodiment of the present invention.

[0027] In the picture:

[0028] 1-steel pipe column; 2-first reinforcement assembly; 3-second reinforcement assembly;

[0029] 21-first annular plate; 22-second annular plate; 23-vertical ribs;

[0030] 31-shear corbel; 32-first torsion corbel; 33-second torsion corbel;

[0031] 311-first support plate; 312-second support plate; 313-support web;

[0032] 321 - first torsion rib; 322 - first opening;

[0033] 331 - second torsion-resistant rib; 332 - second opening. DETAILED DESCRIPTION

[0034] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention more clearly understood, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It is apparent that the described embodiments are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," and "outside" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0036] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed or detachable connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention.

[0037] like Figure 1 As shown, this embodiment provides a beam-column connection node structure that can be used in the construction of multi-story steel structures, especially a beam-column double-beam connection structure. The beam-column connection node structure includes a steel pipe column 1, a first reinforcement assembly 2, and a second reinforcement assembly 3.

[0038] The steel pipe column 1 is used to connect beams in a frame structure. A first reinforcement assembly 2 includes a first annular plate 21 and a second annular plate 22, which are axially spaced apart within the inner cavity of the steel pipe column 1 and connected to the inner cavity wall of the steel pipe column 1. A second reinforcement assembly 3 includes a plurality of reinforcing brackets, which are spaced apart circumferentially on the outer wall of the steel pipe column 1. These brackets are configured to be embedded in the concrete of the beam, thereby connecting the steel pipe column 1 to the beam.

[0039] The beam-column connection node structure provided by the present invention enhances the bending resistance of the steel pipe column 1 by arranging a first annular plate 21 and a second annular plate 22 in the inner cavity of the steel pipe column 1. By arranging a plurality of reinforcing brackets along the circumference on the outer wall of the steel pipe column 1, the shear resistance and torsion resistance of the steel pipe column 1 are enhanced. Specifically, after the concrete of the steel pipe column 1 is poured, the plurality of reinforcing brackets are embedded in the concrete of the beam, and the steel pipe column 1 and the concrete form a whole to connect the steel pipe column 1 to the beam. When the node of the steel pipe column 1 at the beam-column structure node is subjected to lateral pressure, the first annular plate 21 and the second annular plate 22 connect the interior of the steel pipe column 1 with the concrete as a whole, thereby improving the integrity of the steel pipe column 1, thereby preventing the steel pipe column 1 from bending at the beam-column node, effectively improving the overall bearing capacity and stability of the beam-column structure. At the same time, the plurality of reinforcing brackets increase the contact area between the steel pipe column 1 and the concrete of the beam, thereby further improving the bending bearing capacity of the beam-column structure node area. When the shear force of the horizontal floor structure is transmitted to this node, multiple reinforced corbels can resist the shear force at this location, greatly improving the shear bearing capacity of the node area. The beam-column connection node structure of the present invention does not require drilling holes in the steel pipe column 1, simplifies the construction process, shortens the construction period, ensures construction quality, and improves the overall structural strength and stability of the steel structure building.

[0040] See Figure 2Optionally, the first reinforcement assembly 2 further includes a plurality of vertical ribs 23, which are circumferentially spaced apart in the inner cavity of the steel pipe column 1 and connected to the inner cavity wall of the steel pipe column 1. One end of each vertical rib 23 is connected to the first annular plate 21, and the other end is connected to the second annular plate 22. The plurality of vertical ribs 23 connect the first annular plate 21, the second annular plate 22, and the steel pipe column 1 together, further enhancing the bending resistance of the steel pipe column 1. After the concrete is poured, the first annular plate 21, the second annular plate 22, and the plurality of vertical ribs 23 connect the concrete and the interior of the steel pipe column 1 into a whole, thereby improving the integrity of the steel pipe column 1 at the beam-column node, and further improving the bearing capacity of the steel pipe column 1 in this area. When the steel pipe column 1 is subjected to lateral pressure at the node, the first annular plate 21 and the second annular plate 22 form support in the circumferential direction of the steel pipe column 1. At the same time, multiple vertical ribs 23 will squeeze the solidified concrete inward to prevent the steel pipe column 1 from bending and deforming at the node, thereby improving the bearing capacity and stability of the beam-column structure.

[0041] In this embodiment, the first annular plate 21 and the second annular plate 22 have the same structure, and their outer diameters are slightly smaller than the inner diameter of the steel pipe column 1, so that the first annular plate 21 and the second annular plate 22 can be smoothly placed in the inner cavity of the steel pipe column 1. Preferably, the first annular plate 21 and the second annular plate 22 are connected to the steel pipe column 1, the multiple vertical ribs 23 are connected to the first annular plate 21 and the second annular plate 22, and the multiple vertical ribs 23 are connected to the steel pipe column 1. This ensures the strength of the connection between the two, and the welding process is simple and easy to operate.

[0042] Optionally, see Figure 1 and Figure 2 Multiple vertical ribs 23 are evenly spaced on the inner wall of the steel pipe column 1 so that the inner wall of the steel pipe column 1 is evenly stressed, avoiding damage to a certain vertical rib 23 when the area is subjected to bending stress, and further improving the overall stability and bearing capacity of the beam-column structure after concrete pouring.

[0043] Preferably, eight vertical ribs 23 are provided to ensure sufficient support between the first annular plate 21 and the second annular plate 22, effectively improving the bending resistance of the steel pipe column 1. In other embodiments, the number of vertical ribs 23 can be adaptively increased or decreased according to actual needs, as long as the strength requirements can be met.

[0044] Furthermore, the section where the multiple reinforcing corbels are distributed on the outer wall of the steel pipe column 1 is the same as the section where the first annular plate 21, the second annular plate 22, and the multiple vertical ribs 23 are distributed inside the steel pipe column 1, that is, the inside and outside of the steel pipe column 1 are reinforced in the same section, so as to focus on increasing the bending bearing capacity and shear bearing capacity of the core area of ​​the steel pipe column 1.

[0045] Optionally, see Figure 1 and Figure 3 The plurality of reinforcing brackets include a shear bracket 31, and the shear bracket 31 is provided with a plurality of shear brackets 31. The plurality of shear brackets 31 are distributed circumferentially on the outer wall of the steel pipe column 1, so that the circumference of the steel pipe column 1 can be in contact with the concrete through the shear bracket 31, thereby increasing the shear resistance of the steel pipe column 1. In this embodiment, refer to Figure 1 Multiple shear corbels 31 are evenly spaced on the outer wall of the steel pipe column 1 to ensure uniform stress on the outer wall of the steel pipe column 1, thereby avoiding damage to the entire node due to damage to a certain shear corbel 31 when the area is subjected to bending stress, thereby further improving the overall stability and bearing capacity of the beam-column structure after concrete pouring.

[0046] Preferably, four shear corbels 31 are provided. Figure 1 Among them, two shear corbels 31 are respectively arranged on the left and right sides of the steel pipe column 1, and the other two shear corbels 31 are respectively arranged on the front and back sides of the steel pipe column 1. The four shear corbels 31 are vertically cross-distributed to ensure that the steel pipe column 1 is evenly stressed and avoid the steel pipe column 1 from tipping over.

[0047] Optionally, see Figure 3 Each shear corbel 31 includes a first support plate 311, a second support plate 312, and a support web 313. One end of the support web 313 is connected to the first support plate 311, and the other end is connected to the second support plate 312. The first support plate 311, the second support plate 312, and the support web 313 are all connected to the steel pipe column 1 and can be connected by a welding process. The connection is firm and easy to implement. In this embodiment, the support web 313 is perpendicular to the first support plate 311 and the second support plate 312, and the support web 313 is welded to the first support plate 311 and the second support plate 312. This structural design can increase the contact area between the shear corbel 31 and the concrete, thereby improving the shear resistance of the steel pipe column 1.

[0048] Preferably, the shear corbel 31 is made of I-shaped steel, which is easily available and has low manufacturing cost.

[0049] Optionally, see Figure 1 and Figure 4The multiple reinforcing corbels also include a first torsion corbel 32. There are multiple first torsion corbels 32. The multiple first torsion corbels 32 are distributed circumferentially on the outer wall of the steel pipe column 1 above the multiple shear corbels 31 and are staggered with the multiple shear corbels 31. That is, the multiple first torsion corbels 32 are located on the first plane, the multiple shear corbels 31 are located on the second plane, and the first plane is located above the second plane. The multiple first torsion corbels 32 are staggered with the multiple shear corbels 31, so that the force points of the steel pipe column 1 are more evenly distributed in the circumferential direction, and the multiple first torsion corbels 32 can resist the torsional force generated by the two sides of the beam to prevent the beam from bending and torsional deformation. At the same time, the provision of the multiple first torsion corbels 32 further increases the shear resistance of the steel pipe column 1 and increases the bending moment radius at the node of the steel pipe column 1, so that the bending bearing capacity of the beam-column structure node area is greatly improved.

[0050] Optionally, see Figure 1 , multiple first anti-torsion corbels 32 are evenly spaced on the outer wall of the steel pipe column 1, so that the outer wall of the steel pipe column 1 is evenly stressed, further improving the overall stability and bearing capacity of the beam-column structure after concrete pouring. Exemplarily, there are four first anti-torsion corbels 32. In the figure, two of the first anti-torsion corbels 32 are respectively arranged at the upper left and upper right of the rear side of the steel pipe column 1, and the other two first anti-torsion corbels 32 are respectively arranged at the upper left and upper right of the front side of the steel pipe column 1. The four first anti-torsion corbels 32 are symmetrically distributed to ensure that the steel pipe column 1 is evenly stressed and prevent the steel pipe column 1 from tipping over. In other embodiments, the number and distribution of the first anti-torsion corbels 32 can also be adaptively increased or decreased according to actual needs, and are not limited to the number and distribution listed in this embodiment.

[0051] Optionally, see Figure 1 and Figure 4 The multiple reinforcing corbels also include a second torsion corbel 33, and a plurality of second torsion corbels 33 are provided. The plurality of second torsion corbels 33 are circumferentially spaced on the outer wall of the steel pipe column 1 below the plurality of shear corbels 31, and correspond one-to-one with the plurality of first torsion corbels 32. That is, the plurality of second torsion corbels 33 are located on the third plane, the third plane is located below the second plane, and the plurality of second torsion corbels 33 are also staggered with the plurality of shear corbels 31. The plurality of second torsion corbels 33 correspond one-to-one with the plurality of first torsion corbels 32, so that the force points of the steel pipe column 1 in the core area along the axial direction are more evenly distributed. At the same time, the provision of the plurality of second torsion corbels 33 further increases the shear resistance of the steel pipe column 1 and increases the bending moment radius at the node of the steel pipe column 1, thereby further improving the bending bearing capacity of the node area of ​​the beam-column structure.

[0052] In other embodiments, the plurality of second torsion corbels 33 may also be staggered with the plurality of first torsion corbels 32 . The distribution of the plurality of first torsion corbels 32 and the plurality of second torsion corbels 33 may be selected according to actual construction requirements.

[0053] Optionally, see Figure 1 , multiple second anti-torsion brackets 33 are evenly spaced on the outer wall of the steel pipe column 1, so that the outer wall of the steel pipe column 1 is evenly stressed, which can prevent the steel pipe column 1 from tipping over. Preferably, there are also four second anti-torsion brackets 33, Figure 1 Among them, two second torsion-resistant corbels 33 are respectively arranged at the lower left and lower right of the rear side of the steel pipe column 1, and the other two second torsion-resistant corbels 33 are respectively arranged at the lower left and lower right of the front side of the steel pipe column 1. The four second torsion-resistant corbels 33 are symmetrically distributed.

[0054] The beam-column connection node structure provided in this embodiment is provided with four shear corbels 31, four first torsion corbels 32, and four second torsion corbels 33. After concrete is poured, the twelve corbels and the steel bars at the node connect the steel pipe column 1 to the concrete beam. Because the four shear corbels 31, four first torsion corbels 32, and four second torsion corbels 33 are symmetrically arranged, the shear force borne by the steel pipe column 1 is evenly distributed in eight directions, preventing the steel pipe column 1 from tipping over. When the shear force of the horizontal structure of the floor is transmitted to the node, the twelve corbels and the steel bars jointly resist the shear force at the node, greatly improving the shear bearing capacity of the beam-column structure in this area. When the floor beam bends, the four first torsion corbels 32 and four second torsion corbels 33 provide bending bearing capacity. The four first torsion corbels 32 and four second torsion corbels 33 function independently, preventing the node from being damaged as a whole due to the failure of a single corbel when the node is subjected to bending stress.

[0055] Optionally, see Figure 1 and Figure 4 Each first torsional corbel 32 is provided with a first torsional rib 321. One side of the first torsional rib 321 is connected to the first torsional corbel 32, and the other side is connected to the outer wall of the steel pipe column 1. The first torsional rib 321 is located on the side of the first torsional corbel 32 facing the second torsional corbel 33. The provision of the first torsional rib 321 strengthens the connection strength between the first torsional corbel 32 and the steel pipe column 1, while increasing the contact area between the first torsional corbel 32 and the concrete. This increases the bending moment radius at the node of the steel pipe column 1, thereby reducing the bending stress that each first torsional corbel 32 needs to bear and preventing damage to the first torsional corbel 32.

[0056] Continue reading Figure 1 and Figure 4Optionally, each second torsional corbel 33 is provided with a second torsional rib 331. One side of the second torsional rib 331 is connected to the second torsional corbel 33, and the other side is connected to the outer wall of the steel pipe column 1. The second torsional rib 331 is located on the side of the second torsional corbel 33 facing the first torsional corbel 32, and is opposite to the first torsional rib 321. The provision of the second torsional rib 331 enhances the connection strength between the second torsional corbel 33 and the steel pipe column 1, while increasing the contact area between the second torsional corbel 33 and the concrete, thereby increasing the bending moment radius at the node of the steel pipe column 1, thereby reducing the bending stress that each second torsional corbel 33 needs to bear, and can avoid damage to the second torsional corbel 33. The first torsional rib 321 is opposite to the second torsional rib 331, which can concentrate on increasing the node strength of the core area of ​​the steel pipe column 1 and improve the bending bearing capacity of the node area.

[0057] In this embodiment, the first anti-torsion rib 321 and the first anti-torsion corbel 32, the first anti-torsion corbel 32 and the first anti-torsion rib 321 and the steel pipe column 1, the second anti-torsion rib 331 and the second anti-torsion corbel 33, and the second anti-torsion corbel 33 and the second anti-torsion rib 331 and the steel pipe column 1 are all welded, the connection is firm, and the construction is simple.

[0058] Optionally, see Figure 4 The first torsional corbel 32 is provided with a first opening 322 at one end away from the steel pipe column 1 along the extension direction of the first torsional corbel 32, and the second torsional corbel 33 is provided with a second opening 332 at one end away from the steel pipe column 1 along the extension direction of the second torsional corbel 33. The provision of the first opening 322 and the second opening 332 can, on the one hand, enhance the integrity of the first torsional rib 321 and the first torsional corbel 32, as well as the integrity of the second torsional rib 331 and the second torsional corbel 33. On the other hand, the presence of the first opening 322 and the second opening 332 allows the ends of the first torsional corbel 32 and the second torsional corbel 33 to form a fork, further increasing the contact area between the first torsional corbel 32 and the second torsional corbel 33 and the concrete, thereby improving the overall structural strength of the steel structure.

[0059] In this embodiment, the first opening 322 and the first torsion rib 321 are colinearly located, and the end of the first torsion rib 321 corresponds to the deepest point of the first opening 322. This allows the first torsion rib 321 and the first torsion corbel 32 to form an integral whole, thereby increasing the overall strength of the first torsion corbel 32 and the first torsion rib 321. Similarly, the second opening 332 and the second torsion rib 331 are colinearly located, and the end of the second torsion rib 331 corresponds to the deepest point of the second opening 332. This allows the second torsion rib 331 and the second torsion corbel 33 to form an integral whole, thereby increasing the overall strength of the second torsion corbel 33 and the second torsion rib 331.

[0060] Preferably, the first anti-torsion corbel 32 and the second anti-torsion corbel 33 are both made of variable-section "Y"-shaped steel plates, and their ends close to the steel pipe column 1 are processed with arc contact surfaces, so that the first anti-torsion corbel 32 and the second anti-torsion corbel 33 can fit with the outer wall of the steel pipe column 1 through the arc contact surfaces, thereby improving the connection stability between the two and the steel pipe column 1.

[0061] The beam-column connection node structure provided in this embodiment is such that during construction, both sides of the steel pipe column 1 are connected to the beam through multiple reinforcing brackets, forming a beam-column double-beam node structure. When the steel pipe column 1 is subjected to lateral pressure at the node, the first annular plate 21 and the second annular plate 22 form support in the circumference of the steel pipe column 1. At the same time, the multiple vertical ribs 23 will squeeze the solidified concrete inward to prevent the steel pipe column 1 from bending and deforming at the node, thereby improving the bearing capacity and stability of the beam-column connection node structure. When the beam column at the node undergoes bending and torsion deformation, the multiple first torsion brackets 32 and the multiple second torsion brackets 33 provide constraints in the two lateral directions of the beam column to prevent the bending and torsion deformation of the beam column from further developing. At the same time, since the multiple shear brackets 31, the multiple first torsion brackets 32 and the multiple second torsion brackets 33 are all symmetrically arranged, the shear force borne by the steel pipe column 1 is evenly distributed in all directions, thereby avoiding the phenomenon of the steel pipe column 1 tipping over.

[0062] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A beam-column connection node structure, characterized in that: include: A steel pipe column (1), wherein the steel pipe column (1) is used to connect beams in a frame structure; A first reinforcement assembly (2) comprising a first annular plate (21) and a second annular plate (22), wherein the first annular plate (21) and the second annular plate (22) are arranged in the inner cavity of the steel pipe column (1) at intervals along the axial direction and are connected to the inner cavity wall of the steel pipe column (1); A second reinforcement assembly (3) comprises a plurality of reinforcement brackets, wherein the plurality of reinforcement brackets are distributed on the outer wall of the steel pipe column (1) at intervals along the circumference of the steel pipe column (1), and the plurality of reinforcement brackets are configured to be embedded in the concrete of the beam; The plurality of reinforcing brackets include a shear bracket (31), a plurality of the shear brackets (31) are provided, and the plurality of shear brackets (31) are distributed at intervals along the circumferential direction on the outer wall of the steel pipe column (1); The plurality of reinforcing brackets further include a first anti-torsion bracket (32), a plurality of the first anti-torsion brackets (32) are provided, and the plurality of the first anti-torsion brackets (32) are distributed on the outer wall of the steel pipe column (1) at intervals along the circumferential direction above the plurality of the anti-shear brackets (31), and are staggered with the plurality of the anti-shear brackets (31); The plurality of reinforcing brackets also include a second anti-torsion bracket (33), and a plurality of the second anti-torsion brackets (33) are provided. The plurality of second anti-torsion brackets (33) are distributed on the outer wall of the steel pipe column (1) at intervals along the circumferential direction below the plurality of anti-shear brackets (31), and are staggered with the plurality of first anti-torsion brackets (32).

2. The beam-column connection node structure according to claim 1, characterized in that: The first reinforcement assembly (2) further comprises a plurality of vertical ribs (23), which are distributed in the inner cavity of the steel pipe column (1) at intervals along the circumferential direction and connected to the inner cavity wall of the steel pipe column (1), and each of the vertical ribs (23) has one end connected to the first annular plate (21) and the other end connected to the second annular plate (22).

3. The beam-column connection node structure according to claim 2, characterized in that: Each of the shear corbels (31) comprises a first support plate (311), a second support plate (312), and a support web (313); one end of the support web (313) is connected to the first support plate (311), and the other end is connected to the second support plate (312).

4. The beam-column connection node structure according to claim 3, characterized in that: Each of the first torsion-resistant corbels (32) is provided with a first torsion-resistant rib (321), one side of the first torsion-resistant rib (321) is connected to the first torsion-resistant corbel (32), and the other side is connected to the outer wall of the steel pipe column (1), and the first torsion-resistant rib (321) is located on the side of the first torsion-resistant corbel (32) facing the second torsion-resistant corbel (33).

5. The beam-column connection node structure according to claim 4, characterized in that: Each of the second torsion-resistant corbels (33) is provided with a second torsion-resistant rib (331), one side of the second torsion-resistant rib (331) is connected to the second torsion-resistant corbel (33), and the other side is connected to the outer wall of the steel pipe column (1), and the second torsion-resistant rib (331) is located on the side of the second torsion-resistant corbel (33) facing the first torsion-resistant corbel (32) and opposite to the first torsion-resistant rib (321).

6. The beam-column connection node structure according to claim 3, characterized in that: An end of the first anti-torsion corbel (32) away from the steel pipe column (1) is provided with a first opening (322) along the extension direction of the first anti-torsion corbel (32), and an end of the second anti-torsion corbel (33) away from the steel pipe column (1) is provided with a second opening (332) along the extension direction of the second anti-torsion corbel (33).

7. The beam-column connection node structure according to claim 3, characterized in that: A plurality of the shear-resistant corbels (31), a plurality of the first torsion-resistant corbels (32), and a plurality of the second torsion-resistant corbels (33) are evenly spaced on the outer wall of the steel pipe column (1), and a plurality of the vertical ribs (23) are evenly spaced on the inner wall of the steel pipe column (1).

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