CN219887150U - A connection component between steel columns and steel beams - Google Patents

Abstract

The utility model relates to a connection assembly between a steel column and a steel beam, which includes a steel column (100) and at least one steel beam (200). It also includes: at least one steel beam connector (1), and a steel beam connector (1). One side of the corner connector (2) is connected and fixed to the end of the steel beam (200); at least two corner connectors (2), one side of the corner connector (2) is connected and fixed to the outer wall of the steel column (100); a number of bolts ( 3), used to connect the fixed steel beam connector (1) and the corresponding corner connector (2) when the steel beam connector (1) is inserted between the two corner connectors (2), thereby realizing the steel column ( 100) is connected to the steel beam (200); and the other side of the steel beam connector (1) matches the outer wall of the steel column (100). The connection assembly between the steel column and the steel beam disclosed by the utility model is simple to operate, and the connection between the steel column and the steel beam after installation has high stability, which improves the convenience of installation and the safety of the steel structure.

Description

A connection component between steel columns and steel beams

Technical field

The invention belongs to the field of prefabricated steel structure buildings, and specifically relates to a connection assembly between steel columns and steel beams.

Background technique

Prefabricated steel structure buildings have the advantages of high degree of industrialization, fast construction speed, recyclability, and green environmental protection. In recent years, they have developed rapidly under the strong promotion of the country and have gradually become an important building structure system in the construction field. The connection between beams and columns plays a decisive role in the mechanical performance of the steel structure and on-site construction efficiency. It is not only related to the structural safety, but also closely related to the installation efficiency. It is one of the key factors to improve the safety and economy of the steel structure system. one.

There are mainly three types of connections between beams and columns used in existing multi-high-rise steel structure buildings: fully welded connection nodes, bolted welding connection nodes or fully bolted connection nodes. The existing three connection forms have the following problems: (1) Fully welded connection nodes: First of all, fully welded connection nodes require a lot of on-site welding, requiring skilled welders to perform welding operations, which is labor-intensive and time-consuming, and the welding effects of different welders vary. Qi, quality is difficult to guarantee. Secondly, the welding residual stress increases the possibility of brittle failure of the structure. At the same time, the residual deformation will also change the size and shape of the components, affecting the safety of the structure. Frequent correction is required, which is very labor-intensive. (2) Bolted welded connection nodes: Bolted welded connection nodes require welders to perform welding operations during the construction process. There are also problems that the welding and construction quality are greatly affected by the level of workers, the quality is difficult to guarantee, and the construction process has high weather requirements. (3) All-bolt connection nodes: beams and columns are directly connected with full threads. First, the mechanical properties of this direct bolt connection are limited, which affects the overall safety performance of the steel structure. Secondly, the bolt holes are relatively large when installing bolt connections. It is difficult to align, and individual bolt holes need to be expanded, which affects the installation efficiency. Thirdly, the existing all-bolt connection node area is large, the number of nodes is large, and the node cost is high, which ultimately reduces the project efficiency.

In short, the existing beam-to-column connection methods used in multi-high-rise steel structures have problems such as inconvenient installation and low mechanical safety. There is an urgent need to develop a new beam-to-column connection method that is easy to install and has excellent mechanical properties.

Contents of the invention

The purpose of the present invention is to provide a connection assembly between steel columns and steel beams, which is used to solve the problems of inconvenient installation and low mechanical safety in the beam-column connection form used in existing multi-high-rise steel structure buildings.

In order to achieve the above objects, the present invention adopts the following technical solutions:

The invention provides a connection assembly between a steel column and a steel beam, which includes a steel column and at least one steel beam, and also includes: at least one steel beam connector, one side of which is connected and fixed to the end of the steel beam. ; At least two corner connectors, one side of the corner connector is connected and fixed to the outer wall of the steel column; a number of bolts are used to connect and fix the steel beam connector when it is inserted between the two corner connectors. The steel beam connector and the corresponding corner connector realize the connection between the steel column and the steel beam; and the other side of the steel beam connector matches the outer wall of the steel column.

In some embodiments, there are four steel beam connectors and four corner connectors, and each corner connector is sandwiched between every two adjacent steel beam connectors; Each steel beam connecting piece and a corner connecting piece between them are connected as a whole through the bolts to form a connecting ring.

In some embodiments, the corner connector includes a steel column connection part and a bolt connection plate; the steel column connection part is provided at the inner end of the bolt connection plate and is used to abut the outer wall or corner of the steel column; The bolt connection plate is provided between two adjacent steel beam connectors, and has a number of bolt holes on it for threading bolts to connect and fix the two adjacent steel beam connectors.

In some embodiments, the corner connector further includes a baffle, which is provided at the outer end of the bolt connection plate and is used to block the edges of two adjacent steel beam connectors.

In some embodiments, the steel beam is an H-shaped steel beam; the steel beam connector includes an upper flange part, a lower flange part and a web part, and the upper flange part and the lower flange part pass through The web portion is formed into one body; the upper flange portion and the lower flange portion are respectively provided with upper flange grooves and lower flange grooves for respectively inserting the upper flange and lower flange of the steel beam. edge; the web portion is used to abut the web of the steel beam.

In some embodiments, the upper flange part and the lower flange part include a steel column plate and a flange plate; the middle part of the steel column plate of the upper flange part and the middle part of the steel column plate of the lower flange part The middle part is vertically fixed to both ends of the web part respectively; the flange plate of the upper flange part and the flange plate of the lower flange part are respectively provided with upper flange grooves and lower flange grooves , the bottom surfaces of the upper flange groove and the lower flange groove are flush with the top surface of the web part, and are used to insert the outer end surface of the steel beam.

In some embodiments, left and right ear plates are respectively provided on both sides of the steel column plates of the upper flange part and the lower flange part, wherein the left ear plate and the right ear plate are arranged relative to the upper flange part. The steel column plate of the flange part or the lower flange part is symmetrical; the left ear plate is provided with at least one bolt hole on the upper and lower sides of the flange plate, and the right ear plate is located on the flange plate. At least one bolt hole is provided on the upper and lower sides respectively; the bolt hole on the left ear plate of the steel beam connector and the bolt hole on the right ear plate of the adjacent steel beam connector realize two adjacent ones by passing through bolts. Connection of steel beam connectors.

In some embodiments, four bolt holes are provided on the left ear plate, two bolt holes are provided on the upper side of the flange plate, and two bolt holes are provided on the lower side of the flange plate; Four bolt holes are provided on the right ear plate, two bolt holes are provided on the upper side of the flange plate, and two bolt holes are provided on the lower side of the flange plate; the upper flange of the steel beam connector The left ear plate of the lower flange of the steel beam connector is connected to the right ear plate of the upper flange of the adjacent steel beam connector through four bolts; the left ear plate of the lower flange of the steel beam connector is connected to the adjacent right ear plate of the upper flange of the steel beam connector The right ear plate of the lower flange of the beam connector is connected with four bolts.

In some embodiments, the bolt connection plate is provided with eight bolt holes; wherein, the upper part of the bolt connection plate is provided with four bolt holes, which are respectively connected with the upper flange portion of the adjacent steel beam connector. The left ear plate corresponds to the four bolt holes of the right ear plate; the lower part of the bolt connection plate is provided with four bolt holes, which are respectively connected with the left ear plate and the lower flange of the adjacent steel beam connector. The four bolt holes on the right ear plate correspond to each other.

In some embodiments, the steel column is a square steel column or a round steel column; when the steel column is a square steel column, the steel column plates on the upper flange part and the lower flange part of the steel beam connector are flat plates, And one side of the steel column plate that is in direct contact with the outer wall of the steel column is a flat surface; the steel column connection part of the corner connector is a 90-degree bending plate, and the steel column that is in direct contact with the outer wall of the steel column One side of the connecting part is a 90-degree bending surface; when the steel column is a round steel column, the steel column plates of the upper flange part and the lower flange part of the steel beam connector are arc plates, and are connected with the One side of the steel column plate that is in direct contact with the outer wall of the steel column is an arc surface; the steel column connection portion of the corner connector is an arc plate, and the steel column connection portion that is in direct contact with the outer wall of the steel column is an arc surface. One side is an arc surface.

Since the present invention adopts the above technical solution, it has at least the following advantages:

(1) The present invention discloses a connection assembly between a steel column and a steel beam, which includes at least one steel beam connector, at least two corner connectors and a number of bolts. One side of the steel beam connector is welded and fixed to the steel beam. end; one side of the corner connector is welded and fixed to the outer wall of the steel column; when the steel beam connector is inserted between the two corner connectors, the fixed steel beam connector and the corresponding corner connector are connected, thereby realizing the steel column The connection with the steel beam; and the other side of the steel beam connector matches the outer wall of the steel column. The connection assembly between the steel column and the steel beam disclosed by the invention is simple to operate, and the connection between the steel column and the steel beam after installation has high stability, which improves the convenience of installation and the safety of the steel structure.

(2) The invention discloses a connection assembly between a steel column and a steel beam. The steel beam adopts a rolled H-shaped steel beam; the bolts adopt high-strength bolts; the steel column adopts a rolled square tube column or a round tube column; the main structural components are all The steel mill rolling form is used to minimize the welding workload in the factory, reduce component processing time, and improve construction efficiency. The corner connectors and steel beam connectors are cast steel connectors. By using standardized connectors, the cast steel molds can be unified and integrated into the factory for mass production. The cast steel molds are unified and the degree of standardization of the nodes is improved. Not only The construction speed is fast and efficient, and the processing quality is guaranteed. On-site installation adopts all-bolt connection, which greatly reduces the number of bolts compared with traditional all-bolt connection nodes, greatly reduces the node cost, and improves the node installation efficiency.

(3) The present invention discloses a connection assembly between a steel column and a steel beam. The corner connector and the steel column are welded together in the factory, and the steel beam connector and the steel beam are welded together in the factory. After the steel columns and steel beams with steel beam connectors are transported to the construction site, the corner connectors and steel beam connectors are connected through bolts to form a steel structure frame. All bolts are used on site to connect with the existing welded nodes. Compared with other forms, the welding workload is reduced, and welding operations are arranged in the factory as much as possible to avoid welding connections at the construction site to ensure project quality; at the same time, the number of high-strength bolts at the nodes is reduced, the node cost is reduced, and the on-site installation efficiency is improved.

It should be understood that implementation of any embodiment of the present invention does not mean that multiple or all of the above beneficial effects will be simultaneously possessed or achieved.

Description of the drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are for the purpose of illustrating preferred embodiments only and are not to be construed as limiting the invention. Throughout the drawings, the same reference numbers refer to the same parts. In the attached picture:

Figure 1 is a perspective view of a connection assembly between a steel column and a steel beam provided in Embodiment 1 of the present invention;

Figure 2 is a perspective view of the steel beam connector in Figure 1;

Figure 3 is a front view of the steel beam connector in Figure 1;

Figure 4 is a front perspective view of the corner connector in Figure 1;

Figure 5 is a side perspective view of the corner connector in Figure 1;

Figure 6 is a perspective view of the four corner connectors in Figure 1 standing in space;

Figure 7 is a perspective view of the connection assembly between the steel column and the steel beam provided in Embodiment 2 of the present invention;

Figure 8 is a top view of Figure 7;

Figure 9 is a partial enlarged view of Figure 8;

Figure 10 is a simplified diagram of the relationship between the steel column connection part and the steel column of the corner connector of Figure 9;

FIG. 11 is a diagram showing the relationship between the steel column connection part and the steel column of the single corner connector of FIG. 10 .

The symbols in the drawings are as follows:

1-steel beam connector, 11-upper flange part, 12-lower flange part, 13-web part, 110-upper flange groove, 120-lower flange groove, 111-steel column plate, 112 -Flange plate, 113-left ear plate, 114-right ear plate;

2-Corner connector, 21-Steel column connection, 22-Bolt connection plate, 23-Baffle;

3-bolt, 30-bolt hole;

100-steel column, 200-steel beam.

In the various drawings, the same or corresponding reference numerals represent the same or corresponding parts.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the embodiments and drawings. Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but are not used to limit the present invention.

In the present invention, unless otherwise clearly stated and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

It will be understood that the terms "comprising/comprising," "consisting of," or any other variation are intended to cover a non-exclusive inclusion such that a product, apparatus, process or method that includes a list of elements not only includes those elements, but also requires It may also include other elements not expressly listed or elements inherent to the product, equipment, process or method. Without further limitation, elements defined by the statements "includes/comprises..." or "consists of" do not exclude the presence of additional elements in a product, device, process or method that includes the stated elements. Same elements.

It is also necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer", etc. indicate orientation or positional relationship The orientations or positional relationships shown in the drawings are merely to facilitate description of the present invention and simplify the description and do not indicate or imply that the devices, components or structures referred to must have a specific orientation, be constructed or operate in a specific orientation. It should not be construed as a limitation of the present invention.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more than two, unless otherwise explicitly and specifically limited.

The above technical solution will be described in detail below with reference to the accompanying drawings and specific implementations.

In order to solve the problems of inconvenient installation and low mechanical safety in the beam-column connection form currently used in existing multi-high-rise steel structure buildings, the present invention provides a connection assembly between steel columns and steel beams, including a steel column 100 and at least one The steel beam 200 also includes: at least one steel beam connector 1, one side of the steel beam connector 1 is connected and fixed to the end of the steel beam 200; at least two corner connectors 2, one of the corner connectors 2 The side connection is fixed on the outer wall of the steel column 100; a number of bolts 3 are used to connect and fix the steel beam connector 1 and the corresponding corner connector 2 when the steel beam connector 1 is inserted between the two corner connectors 2, thereby realizing the steel beam connector 1. The connection between the column 100 and the steel beam 200; and the other side of the steel beam connector 1 matches the outer wall of the steel column 100. The main structure of the connection assembly between the steel column and the steel beam disclosed by the present invention is pre-made in the factory and can be plugged in on site. The operation is simple. The connection between the steel column 100 and the steel beam 200 after installation has high stability and improves the stability of the connection. Ease of installation and safety of steel structures.

Preferably, the connection between the steel beam connector 1 and the steel beam 200 and the corner connector 2 and the steel column 100 are fixed by welding and are pre-processed and manufactured in the factory.

It should be noted that the connection assembly between steel columns and steel beams provided by the present invention includes at least one steel beam connector 1 and at least two corner connectors 2, which can be arranged in the following various ways according to actual engineering needs:

(1) Either side of the steel column 100 is connected to a steel beam 200. At this time, two corner connectors 2 are arranged adjacent to each other on the outer wall of the steel column 100;

(2) Two steel beams 200 are connected to the adjacent sides of the steel column 100. The two steel beams 200 are distributed at 90°. In this case, three corner connectors 2 are required;

(3) Two steel beams 200 are connected to the opposite sides of the steel column 100. The two steel beams 200 are distributed at 180°. In this case, four corner connectors 2 are required;

(4) The steel column 100 connects three steel beams 200 on three sides. In this case, four corner connectors 2 are required;

(5) The steel column 100 is connected to four steel beams 200 on four sides. In this case, four corner connectors 2 are required.

It is easy to understand that when four steel beams 200 are connected to four sides of the steel column 100, there are four steel beam connectors 1 and four corner connectors 2, and each corner connector 2 is sandwiched between every two adjacent steel beams. Between the connectors 1, each two adjacent steel beam connectors 1 and a corner connector 2 they sandwich are connected as a whole through bolts 3 to form a connecting ring. At this time, the inner wall of the connecting ring is used to cover the outer wall of the steel column 100, thereby realizing the connection between the steel column 100 and the steel beam 200. This connection method can obtain the best integrity of the connection node, the firmness and reliability of the connection. The following will be explained in conjunction with this specific method, but obviously the following structure is applicable to all the above connection methods.

Example 1: Connection components suitable for connecting square steel columns and H-shaped steel beams

Embodiment 1 provides a connection assembly for connecting square steel columns and steel beams 200, and its structure will be described in detail below.

Referring to Figure 1, as a preferred embodiment, the connection assembly includes four steel beam connectors 1, four corner connectors 2 and a number of bolts 3.

Specifically, the steel beam 200 is an H-shaped steel beam; the bolts 3 are high-strength bolts. The steel column 100 is a rolled square pipe column or a round pipe column. In this embodiment, a square pipe column is used.

In order to facilitate the insertion of the steel beam 200, with reference to Figures 2 and 3, the steel beam connector 1 includes an upper flange part 11, a lower flange part 12 and a web part 13. The upper flange part 11 and the lower flange part 12 are respectively The upper flange portion 11 and the lower flange portion 12 are respectively provided with upper flange grooves 110 and lower flange grooves 120 for inserting the upper flange and lower flange of the steel beam 200 respectively. Flange; web portion 13 is used to abut the web of the steel beam 200.

As a more specific embodiment, the upper flange part 11 and the lower flange part 12 include a steel column plate 111 and a flange plate 112. The middle part of the steel column plate 111 of the upper flange part 11 and the middle part of the lower flange part 12 The middle part of the steel column plate 111 is vertically fixed at both ends of the web part 13 respectively; the flange plate 112 of the upper flange part 11 and the flange plate 112 of the lower flange part 12 are respectively provided with upper flange grooves 110 and The bottom surfaces of the lower flange groove 120 , the upper flange groove 110 and the lower flange groove 120 are flush with the top surface of the web portion 13 and are used for inserting the outer end surface of the steel beam 200 .

In order to pass through the bolts 3, left ear plates 113 and right ear plates 114 are respectively provided on both sides of the steel column plate 111 of the upper flange part 11 and the lower flange part 12, wherein the left ear plate 113 and the right ear plate 114 are related to the upper flange part 11 and the lower flange part 12. The center line of the steel column plate 111 of the flange part 11 or the lower flange part 12 is arranged symmetrically; at least one bolt hole 30 is provided on the left ear plate 113 and located on both sides of the flange plate 112, and on the right ear plate 114 and located At least one bolt hole 30 is provided on both sides of the flange plate 112. The bolt hole 30 on the left ear plate 113 of the steel beam connector 1 passes through the bolt hole 30 on the right ear plate 114 of the adjacent steel beam connector 1. The threading bolts 3 realize the connection of two adjacent steel beam connectors 1.

Continuing to refer to Figures 2 and 3, specifically, four bolt holes 30 are provided on the left ear plate 113, of which two bolt holes 30 are provided on the upper side of the flange plate 112, and two bolt holes 30 are provided on the lower side of the flange plate 112. There are two bolt holes 30 , four bolt holes 30 are provided on the right ear plate 114 , two bolt holes 30 are provided on the upper side of the flange plate 112 , and two bolts are provided on the lower side of the flange plate 112 hole 30, the left ear plate 113 of the upper flange portion 11 of the steel beam connector 1 is connected to the right ear plate 114 of the upper flange portion 11 of the adjacent steel beam connector 1 through four bolts 3; the steel beam connector 1 The left ear plate 113 of the lower flange portion 12 is connected to the right ear plate 114 of the lower flange portion 12 of the adjacent steel beam connector 1 through four bolts 3 .

Referring to Figures 4 to 6, specifically, the corner connector 2 includes a steel column connection portion 21 and a bolt connection plate 22. The steel column connection portion 21 is provided at the inner end of the bolt connection plate 22 for abutting against the steel column 100. Outer wall or corner; bolt connection plate 22 is provided between two adjacent steel beam connectors 1, with a number of bolt holes 30 provided on it for passing bolts 3 to connect two adjacent steel beam connectors 1 together.

In order to prevent the steel beam connector 1 from sliding out, the corner connector 2 also includes a baffle 23 , which is provided at the outer end of the bolt connection plate 22 and used to abut the edges of two adjacent steel beam connectors 1 .

Specifically, the bolt connecting plate 22 of the corner connector 2 is sandwiched between each two adjacent steel beam connectors 1 , the steel column connecting portion 21 is inwardly against the outer wall or corner of the steel column 100 , and the baffle 23 It faces outward and against the edges of two adjacent steel beam connectors 1 to resist the steel beam connector 1 from sliding out, which greatly improves the stability of the connecting ring as a whole.

In order to install the bolts 3, specifically, the bolt connection plate 22 is provided with eight bolt holes 30. Among them, the upper part of the bolt connection plate 22 is provided with four bolt holes 30, which are respectively connected with the upper flange of the adjacent steel beam connector 1. The left ear plate 113 of the part 11 corresponds to the four bolt holes 30 of the right ear plate 114; the lower part of the bolt connection plate 22 is provided with four bolt holes 30, which are respectively connected with the lower flange part 12 of the adjacent steel beam connector 1 The left ear plate 113 corresponds to the four bolt holes 30 of the right ear plate 114.

When the steel column 100 is a square steel column, the steel column plate 111 of the upper flange portion 11 and the lower flange portion 12 of the steel beam connector 1 is a flat plate, and one side of the steel column plate 111 is in direct contact with the outer wall of the steel column 100 is a plane; the steel column connecting portion 21 of the corner connector 2 is a 90-degree bending plate, and the side of the steel column connecting portion 21 that is in direct contact with the outer wall of the steel column 100 is a 90-degree bending surface.

Among them, the corner connector 2 and the steel column 100 are welded together in the factory, the steel beam connector 1 and the steel beam 200 are welded together in the factory, and the steel column 100 with the corner connector 2 is connected to the steel beam. After the steel beam 200 of piece 1 is transported to the construction site, the steel beam 200 with the steel beam connector 1 is clamped between the two adjacent corner connectors 2 on the steel column 100 from above or below, and the bolts 3 are used to secure the steel beam 200 to the construction site. The corner connector 2 and the steel beam connector 1 are connected to form a steel structure frame. All-bolt connections are used on site, so the construction speed is fast and the quality is guaranteed.

The steel beam 200 adopts a rolled H-shaped steel beam, and the steel column 100 adopts a rolled square tube column or a round tube column. Compared with welded H-shaped steel, the rolled section steel maximizes the factory welding workload and greatly reduces the labor cost. Component processing time. The corner connector 2 and the steel beam connector 1 are made of cast steel. Compared with welded connectors, the cast steel connectors adopt an integrated forming method, which reduces the node processing steps and ensures the node processing quality.

The corner connector 2 and the steel beam connector 1 are both standardized connectors. The unified cast steel mold also improves the standardization of the nodes. The connectors can be mass-produced and the node processing efficiency is improved.

Example 2: Connection components suitable for connecting round steel columns and H-shaped steel beams

Referring to Figures 7 to 11, the steel column 100 is a round steel column.

When the steel column 100 is a round steel column, the steel column plates 111 of the upper flange portion 11 and the lower flange portion 12 of the steel beam connector 1 are arc plates, and the steel column plates are in direct contact with the outer wall of the steel column 100 One side of 111 is an arc surface; the steel column connecting portion 21 of the corner connector 2 is an arc plate, and one side of the steel column connecting portion 21 that is in direct contact with the outer wall of the steel column 100 is an arc surface, as shown in Figure 9 to As shown in Figure 11.

The embodiments of the present invention have been described above. The above description is illustrative, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technical improvements in the market of the embodiments, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Although several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of the invention. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single implementation. Conversely, various features that are described in the context of a single implementation can also be implemented in multiple implementations separately or in any suitable subcombination.

Claims (10)

1. A steel column and steel beam connection assembly comprising a steel column (100) and at least one steel beam (200), characterized in that it further comprises:

the steel beam connecting piece (1), one side of the steel beam connecting piece (1) is fixedly connected to the end part of the steel beam (200);

at least two corner connecting pieces (2), wherein one side of each corner connecting piece (2) is fixedly connected with the outer wall of the steel column (100);

the bolts (3) are used for connecting and fixing the steel beam connecting pieces (1) and the corresponding corner connecting pieces (2) when the steel beam connecting pieces (1) are inserted between the two corner connecting pieces (2), so that the connection between the steel column (100) and the steel beam (200) is realized; and is also provided with

The other side of the steel beam connecting piece (1) is matched with the outer wall of the steel column (100).

2. The connection assembly of claim 1, wherein:

four steel beam connectors (1) and four corner connectors (2) are arranged, and each corner connector (2) is clamped between every two adjacent steel beam connectors (1);

every two adjacent steel beam connecting pieces (1) and one corner connecting piece (2) clamped by the two adjacent steel beam connecting pieces are connected into a whole through the bolts (3) to form a connecting ring.

3. The connection assembly of claim 2, wherein:

the corner connecting piece (2) comprises a steel column connecting part (21) and a bolt connecting plate (22);

the steel column connecting part (21) is arranged at the inner end of the bolt connecting plate (22) and is used for abutting against the outer wall or the corner part of the steel column (100);

the bolt connecting plates (22) are arranged between two adjacent steel beam connecting pieces (1), and are provided with a plurality of bolt holes (30) for penetrating bolts (3), and the two adjacent steel beam connecting pieces (1) are fixedly connected.

4. A connection assembly according to claim 3, wherein:

the corner connecting piece (2) further comprises a baffle plate (23), and the baffle plate (23) is arranged at the outer end of the bolt connecting plate (22) and used for clamping the edge of the steel beam connecting piece (1).

5. The connection assembly of claim 4, wherein:

the steel beam (200) is an H-shaped steel beam;

the steel beam connecting piece (1) comprises an upper flange part (11), a lower flange part (12) and a web plate part (13), wherein the upper flange part (11) and the lower flange part (12) are integrated through the web plate part (13) respectively;

the upper flange part (11) and the lower flange part (12) are respectively provided with an upper flange groove (110) and a lower flange groove (120) which are used for respectively inserting an upper flange and a lower flange of the steel beam (200);

the web portion (13) is for abutting against a web of the steel girder (200).

6. The connection assembly of claim 5, wherein:

the upper flange part (11) and the lower flange part (12) comprise a steel column plate (111) and a flange plate (112);

the middle part of the steel column plate (111) of the upper flange part (11) and the middle part of the steel column plate (111) of the lower flange part (12) are respectively and vertically fixed at two ends of the web part (13);

the flange plate (112) of the upper flange part (11) and the flange plate (112) of the lower flange part (12) are respectively provided with an upper flange groove (110) and a lower flange groove (120), and the bottom surfaces of the upper flange groove (110) and the lower flange groove (120) are flush with the top surface of the web part (13) and are used for being inserted with the outer end surface of the steel beam (200).

7. The connection assembly of claim 6, wherein:

the two sides of the steel column plate (111) of the upper flange part (11) and the lower flange part (12) are respectively provided with a left ear plate (113) and a right ear plate (114), wherein the left ear plate (113) and the right ear plate (114) are symmetrical relative to the steel column plate (111) of the upper flange part (11) or the lower flange part (12);

at least one bolt hole (30) is respectively arranged on the left ear plate (113) and positioned on the upper side and the lower side of the flange plate (112), and at least one bolt hole (30) is respectively arranged on the right ear plate (114) and positioned on the upper side and the lower side of the flange plate (112);

the bolt holes (30) on the left lug plates (113) of the steel beam connecting pieces (1) are connected with the bolt holes (30) on the right lug plates (114) of the adjacent steel beam connecting pieces (1) through penetrating bolts (3).

8. The connection assembly of claim 7, wherein:

four bolt holes (30) are formed in the left lug plate (113), two bolt holes (30) are formed in the upper side of the flange plate (112), and two bolt holes (30) are formed in the lower side of the flange plate (112);

four bolt holes (30) are formed in the right lug plate (114), two bolt holes (30) are formed in the upper side of the flange plate (112), and two bolt holes (30) are formed in the lower side of the flange plate (112);

the left lug plate (113) of the upper flange part (11) of the steel beam connecting piece (1) is connected with the right lug plate (114) of the upper flange part (11) adjacent to the steel beam connecting piece (1) through four bolts (3);

the left lug plate (113) of the lower flange part (12) of the steel beam connecting piece (1) is connected with the right lug plate (114) of the lower flange part (12) of the adjacent steel beam connecting piece (1) through four bolts (3).

9. The connection assembly of claim 8, wherein:

eight bolt holes (30) are formed in the bolt connecting plate (22);

four bolt holes (30) are formed in the upper portion of the bolt connecting plate (22), and the four bolt holes (30) respectively correspond to the left lug plate (113) and the right lug plate (114) of the upper flange part (11) of the adjacent steel beam connecting piece (1);

four bolt holes (30) are formed in the lower portion of the bolt connecting plate (22), and the four bolt holes (30) respectively correspond to the left lug plate (113) and the right lug plate (114) of the lower flange part (12) of the adjacent steel beam connecting piece (1).

10. The connection assembly of claim 9, wherein:

the steel column (100) is a square steel column or a round steel column,

when the steel column (100) is a square steel column, the steel column plates (111) of the upper flange part (11) and the lower flange part (12) of the steel beam connecting piece (1) are plane plates, and one surface of the steel column plates (111) which are in direct contact with the outer wall of the steel column (100) is a plane; the steel column connecting part (21) of the corner connecting piece (2) is a 90-degree bent plate, and one surface of the steel column connecting part (21) which is in direct contact with the outer wall of the steel column (100) is a 90-degree bent surface;

when the steel column (100) is a round steel column, the steel column plates (111) of the upper flange part (11) and the lower flange part (12) of the steel beam connecting piece (1) are arc plates, and one surface of the steel column plates (111) which is in direct contact with the outer wall of the steel column (100) is an arc surface; the steel column connecting part (21) of the corner connecting piece (2) is an arc plate, and one surface of the steel column connecting part (21) which is in direct contact with the outer wall of the steel column (100) is an arc surface.