Steel structural part and prefabricated structure

Abstract

The utility model provides a steel structural part and a prefabricated structure, and relates to the field of prefabricated buildings, the steel structural part comprises a connecting male part and a connecting female part, the connecting male part comprises a first connecting male plate and a second connecting male plate, and the connecting female part comprises a first connecting female plate and a second connecting female plate; the two ends of the second connecting male plate are flush with the two ends of the second connecting female plate and fixedly attached to the second connecting female plate face, the first connecting male plate is perpendicular to the second connecting male plate, the first connecting female plate is perpendicular to the second connecting female plate, and the first connecting male plate and the first connecting female plate are fixedly attached to form a first attaching face. The first binding surface is positioned in the center of the width of the second connecting male plate; the multiple rib plates are arranged on the second connecting male plate and the second connecting female plate at intervals respectively, the connecting male pieces and the connecting female pieces are embedded in the frame column and the frame beam respectively, connection between the frame column and the frame beam can be rapidly achieved, each steel bar does not need to be independently connected, and the connecting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of prefabricated buildings, in particular to a steel structural member and a prefabricated structure. Background Art

[0002] Steel structural members (3) are commonly used connection structures in the field of prefabricated buildings and are often used to connect unit components such as beams, columns, and floor slabs to achieve the purpose of rapid on-site assembly.

[0003] Patent CN115538595A discloses a concrete frame connector, which is used to connect a frame column (4) and a frame beam (5). In this patent, a column head unit and a beam head unit are required to be locked, and in order to enhance the connection strength between the frame column (4) and the frame beam (5), a steel bar assembly is required for further connection.

[0004] The steel bar assembly is connected by a first steel bar embedded in the frame column, a second steel bar embedded in the frame beam, and a first sleeve connecting the first steel bar and the second steel bar. In practice, it is found that in order to ensure the connection strength between the frame column (4) and the frame beam (5), multiple sets of steel bar assemblies need to be set. When assembling the concrete frame connector, the steel bars in each steel bar assembly need to be aligned and assembled. Due to the limitations of the prefabrication process, the position of the steel bar embedded in the frame beam or frame column cannot be accurately controlled, resulting in the first steel bar and the second steel bar often being unable to be aligned during assembly. The first steel bar or the second steel bar needs to be adjusted before connection can be achieved, which greatly reduces the efficiency of assembly. Utility Model Content

[0005] The utility model provides a steel structure member and a prefabricated structure, which aims to solve the problem of low efficiency in the prior art caused by the need to independently connect each steel bar when connecting steel bar components.

[0006] In order to achieve the above-mentioned object, an embodiment of the utility model provides a steel structure (3), comprising:

[0007] A connecting male part and a connecting female part, wherein the connecting male part comprises a first connecting male plate and a second connecting male plate, and the connecting female part comprises a first connecting female plate and a second connecting female plate, wherein the second connecting male plate is flush with both ends of the second connecting female plate and is fixedly attached to the surface of the second connecting female plate, wherein the first connecting male plate is perpendicular to the second connecting male plate, and the first connecting female plate is perpendicular to the second connecting female plate, wherein the first connecting male plate and the first connecting female plate are fixedly attached to form a first attaching surface, and the first attaching surface is located at the center of the width of the second connecting male plate;

[0008] A plurality of rib plates are respectively arranged at intervals on the opposite sides of the second connecting male plate and the second connecting female plate.

[0009] Preferably, the first connecting male plate and the first connecting female plate are also provided with a first locking hole, the second connecting male plate and the second connecting female plate are also provided with a second locking hole, the first connecting male plate and the first connecting female plate are fixedly connected by bolts passing through the first locking hole, and the second connecting male plate and the second connecting female plate are fixedly connected by bolts passing through the second locking hole.

[0010] Preferably, the connecting male component further comprises a male component bottom plate, the male component bottom plate is arranged between the first connecting male plate and the second connecting male plate, the first connecting male plate is vertically fixed to the male component bottom plate, and the second connecting male plate is vertically fixed to the male component bottom plate;

[0011] The connecting mother component also includes a mother component bottom plate, which is arranged between the first connecting mother plate and the second connecting mother plate. The first connecting mother plate is vertically fixed to the mother component bottom plate, and the second connecting mother plate is vertically fixed to the mother component bottom plate.

[0012] Preferably, the connecting male component further comprises a male component side plate, the male component side plate is vertically fixed to the male component bottom plate, and the first connecting male plate is also vertically fixed to the male component side plate.

[0013] The lower end of the male side plate is flush with the lower end of the second connecting male plate, the rib plate is arranged at one end of the male side plate away from the second connecting male plate, and a reinforcing plate is arranged between the male side plate and the second connecting male plate.

[0014] Preferably, the male component side plate and the second connecting male plate are arranged on the male component bottom plate along the x-axis direction, and the male component side plate and the second connecting male plate are respectively located at two ends of the male component bottom plate, and the first connecting male plate is located at the center of the male component bottom plate, and the male component bottom plate is divided into two identical parts along the y-axis direction;

[0015] The second connecting motherboard is arranged at the end of the mother component bottom plate, and the first connecting motherboard is located at the center of the mother component bottom plate, and divides the mother component bottom plate into two identical parts along the y-axis direction.

[0016] Preferably, a plurality of first fixing anchors are provided on a side of the male component side plate away from the first connecting male plate, and a plurality of second fixing anchors are provided on an end of the first connecting female plate away from the first connecting male plate.

[0017] The present application also provides a prefabricated structure, comprising:

[0018] The aforementioned steel structural parts;

[0019] The frame column is arranged along the z-axis direction, and the connecting male part is pre-buried in the frame column perpendicular to the z-axis direction;

[0020] Two frame beams are respectively arranged on both sides of the frame column, and the connecting mother component is pre-embedded on the side of the frame beam facing the frame column.

[0021] Preferably, the frame column also forms an interlaced area above the connecting member.

[0022] The frame beam is also pre-buried with main reinforcement steel bars, which are pre-buried at the upper end of the frame beam.

[0023] An intermediate steel bar is arranged in the interlaced area, the intermediate steel bar is arranged perpendicular to the z-axis, steel bar sleeves are arranged at both ends of the intermediate steel bar, and the main steel bar is screwed with the steel bar sleeves.

[0024] Preferably, the upper end surface of the frame beam is also provided with a receiving groove, and the receiving groove is arranged at one end of the frame beam close to the frame column. Auxiliary steel bars are also passed through the interlaced area, and the two ends of the auxiliary steel bars are respectively located in the receiving grooves of the two frame beams.

[0025] The above solution of the utility model has the following beneficial effects:

[0026] In the present application, by burying the connecting male parts and the connecting female parts in the frame columns and the frame beams respectively, positioning and fixing are achieved by fitting the first connecting male plate with the first connecting female plate surface and fitting the second connecting male plate with the second connecting female plate surface, the connection between the frame columns and the frame beams can be quickly achieved without the need to connect each steel bar separately, thereby shortening the connection time of the frame columns and the frame beams and improving the connection efficiency.

[0027] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the steel structure;

[0029] Figure 2 It is a schematic diagram of connecting the public parts;

[0030] Figure 3 It is a schematic diagram of connecting the mother parts;

[0031] Figure 4 It is a schematic diagram of the prefabricated structure (one frame beam is hidden);

[0032] Figure 5 yes Figure 4 A schematic diagram of the enlarged portion of the middle;

[0033] Figure 6 yes Figure 4 Schematic diagram of the enlarged portion B.

[0034] [Description of Reference Numerals]

[0035] 1. Connecting male parts; 11. First connecting male plate; 12. Second connecting male plate; 13. Male part bottom plate; 14. Male part side plate; 15. First fixing anchor; 16. Reinforcement plate; 2. Connecting female parts; 21. First connecting female plate; 22. Second connecting female plate; 23. Rib plate; 24. First locking hole; 25. Second locking hole; 26. Female part bottom plate; 27. Second fixing anchor; 3. Steel structure parts; 4. Frame column; 5. Frame beam; 6. Skeleton reinforcement; 7. Main reinforcement; 71. Intermediate reinforcement; 72. Rebar sleeve; 8. Receiving groove; 81. Auxiliary reinforcement. DETAILED DESCRIPTION

[0036] In order to make the technical problems to be solved, technical solutions and advantages of the present invention more clear, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0037] In this application, a world coordinate system xyz is constructed. To distinguish different steel bars, they are distinguished by different colors in the drawings, and steel bars of the same color are the same type of steel bars.

[0038] like Figure 1-3 As shown, an embodiment of the utility model provides a steel structure, including a connecting male part 1 and a connecting female part 2, wherein the connecting male part 1 includes a first connecting male plate 11 and a second connecting male plate 12, and the connecting female part 2 includes a first connecting female plate 21 and a second connecting female plate 22, and the second connecting male plate 12 is flush with the second connecting female plate 22 at both ends, and the side of the second connecting male plate 12 is fitted with the side of the second connecting female plate 22, and fixed together. The first connecting male plate 11 is perpendicular to the second connecting male plate 12, and the first connecting female plate 21 is perpendicular to the second connecting female plate 22, and the side of the first connecting male plate 11 is fitted with the side of the first connecting female plate 21, and fixed together, and the first connecting male plate 11 and the first connecting female plate 21 are fitted to form a first fitting surface after being fitted, and the first fitting surface is located at the width center of the second connecting male plate 12.

[0039] In this embodiment, the first connecting male plate 11 and the first connecting female plate 21 are parallel to the xz plane respectively, the second connecting male plate 12 and the second connecting female plate 22 are parallel to the yz plane respectively, and the width of the second connecting male plate 12 is the distance that the second connecting male plate 12 extends in the y-axis direction.

[0040] Furthermore, the steel structure 3 also includes a plurality of rib plates 23 , which are spaced apart on the second connecting male plate 12 and the second connecting female plate 22 . Specifically, the rib plates 23 are arranged on the opposite sides of the first connecting male plate 11 and the second connecting female plate 22 .

[0041] In this embodiment, the rib plate 23 is used to connect the skeleton reinforcement 6 embedded in the frame beam 5. When the frame beam 5 is manufactured, the rib plates 23 and the skeleton reinforcement 6 are arranged alternately, and the skeleton reinforcement 6 is fixed to the side of the rib plate 23, so as to increase the connection surface between the skeleton reinforcement 6 and the rib plate 23 and thus increase the connection strength between the skeleton reinforcement 6 and the rib plate 23. After the connection between the skeleton reinforcement 6 and the rib plate 23 is completed, the skeleton reinforcement 6 and the rib plate 23 are embedded in the frame beam 5.

[0042] When the steel structure 3 is used to connect the frame beam 5 and the frame column 4, the male connection part 1 is set on the frame column 4, and the female connection part 2 is set at the end of the frame beam 5. First, the first male connection plate 11 and the first female connection plate 21 are bonded together, so that the plane where the male connection part 1 is located and the plane where the female connection part 2 is located are located in the same plane. Then, the second male connection plate 12 and the second female connection plate 22 are bonded together, and the first male connection plate 11 and the first female connection plate 21, the second female connection plate 22 and the second female connection plate 22 are fixed respectively to prevent the frame beam 5 from being separated from the frame column 4. The steel structure 3 provided in the present application does not need to connect the steel bars separately, and has the advantages of convenient connection and fast connection speed.

[0043] Furthermore, the first connecting male plate 11 and the first connecting female plate 21 are respectively provided with a first locking hole 24, and the second connecting male plate 12 and the second connecting female plate 22 are respectively provided with a second locking hole 25. When the first connecting male plate 11 and the first connecting female plate 21 are surface-fitted, the second locking holes 25 on the second connecting male plate 12 and the second connecting female plate 22 are aligned, and the second connecting male plate 12 and the second connecting female plate 22 are connected by bolts passing through the second locking holes 25. As the bolts are tightened, the second connecting male plate 12 and the second connecting female plate 22 are gradually fitted together. When fitted together, the first locking holes 24 on the first connecting male plate 11 and the first connecting female plate 21 are aligned. At this time, the first connecting male plate 11 and the second connecting male plate 12 are locked by other bolts screwed into the first locking holes 24, and the two locking bolts respectively lock in the x-direction and y-direction.

[0044] In this embodiment, the rib plate 23 is pre-embedded and connected with the skeleton steel bar 6 and buried in the frame beam 5. In the process of installing the connecting male part 1 and the connecting female part 2, the locking hole alignment method is directly used to realize the rapid connection of the connecting male part 1 and the connecting female part 2, avoiding the connection of a single skeleton steel bar 6 and shortening the connection time. At the same time, the first locking hole 24 and the second locking hole 25 are easy to align when making holes. In the subsequent assembly, the first connecting male plate 11 is fitted with the first connecting female plate 21, and the second connecting male plate 12 is fitted with the second connecting female plate 22, which can ensure the alignment of the first locking hole 24 and the alignment of the second locking hole 25.

[0045] To further improve the connecting male component 1, the connecting male component 1 also includes a male component base plate 13, which is arranged between the first connecting male plate 11 and the second connecting male plate 12. The male component base plate 13 is arranged parallel to the xy plane. The first connecting male plate 11 is vertically fixed on the male component base plate 13, and the second connecting male plate 12 is vertically fixed on the male component base plate 13.

[0046] The connecting male component 1 further includes a male component side plate 14 . The male component side plate 14 is arranged parallel to the yz plane. The male component side plate 14 is perpendicular to the male component bottom plate 13 . The first connecting male plate 11 is perpendicular to the male component side plate 14 .

[0047] The lower end of the male side plate 14 is flush with the lower end of the second connecting male plate 12, the rib plate 23 is arranged at one end of the male side plate 14 away from the second connecting male plate 12, and a reinforcing plate 16 is arranged between the male side plate 14 and the second connecting male plate 12, and the reinforcing plate 16 is vertically connected to the male side plate 14 and the second connecting male plate 12 respectively.

[0048] Similarly, the connecting mother component 2 also includes a mother component base plate 26, which is arranged between the first connecting mother plate 21 and the second connecting mother plate 22. The mother component base plate 26 is also parallel to the xy plane. The first connecting mother plate 21 is vertically fixed on the mother component base plate 26, and the second connecting mother plate 22 is vertically fixed on the mother component base plate 26.

[0049] The aforementioned rib plate 23 is fixedly connected to the second connecting male plate 12 and the male component bottom plate 13 or the second connecting female plate 22 and the female component bottom plate 26 .

[0050] Furthermore, the male side plate 14 and the second connecting plate are arranged on the male base plate 13 along the x-axis direction, and the male side plate 14 and the second connecting male plate 12 are respectively located at the two ends of the male base plate 13, and the first connecting male plate 11 is located at the center of the width of the male base plate 13, that is, the first connecting male plate 11 separates the male base plate 13 into two identical areas in the y direction.

[0051] Similarly, the second connecting mother board 22 is arranged at the end of the mother component base plate 26 close to one end of the second connecting male board 12, and the first connecting mother board 21 is located at the center of the mother component base plate 26, that is, the first connecting mother board 21 divides the mother component base plate 26 into two identical areas in the y direction.

[0052] Preferably, the first male connection plate 11, the second male connection plate 12, the male component bottom plate 13 and the male component side plate 14 are integrally formed. The first female connection plate 21, the second female connection plate 22 and the female component bottom plate 26 are integrally formed.

[0053] Preferably, the first connecting male plate 11, the second connecting male plate 12, the male component bottom plate 13 and the male component side plate 14 are all rectangular, and the first connecting female plate 21, the second connecting female plate 22 and the female component bottom plate 26 are all rectangular.

[0054] Furthermore, a plurality of first fixing anchors 15 are provided on a side of the male side plate 14 away from the first connection male plate 11. When the male side plate 14 is fixed to the frame column 4, the first fixing anchors 15 are anchored in the frame column 4 to enhance the connection strength between the male connection member 1 and the frame column 4 to prevent the two from being separated. A plurality of second fixing anchors 27 are provided at one end of the first connection female plate 21 away from the first connection male plate 11. The plurality of second fixing anchors 27 are provided perpendicular to the first connection female plate 21. The second fixing anchors 27 are anchored to the frame beam to enhance the connection strength between the connection female member 2 and the frame beam 5.

[0055] like Figure 1-6 The present application also provides a prefabricated structure, including the aforementioned steel structure 3, a frame column 4 and two frame beams 5, wherein the frame column 4 is arranged along the z-axis direction, the connecting male part 1 is embedded in the frame column 4 perpendicular to the z-axis direction, the two frame beams 5 are respectively located on both sides of the frame column 4, the length of the two frame beams 5 is arranged perpendicular to the z-axis direction, and the two frame beams 5 are respectively provided with connecting female parts 2 on one side facing the frame column 4.

[0056] During assembly, the ribs 23 located on the second connecting male plate 12 and the second connecting female plate 22 are buried in the frame column 4 and the frame beam 5, leaving the first connecting male plate 11, the second connecting male plate 12, the first connecting female plate 21 and the second connecting female plate 22 exposed outside the frame column 4 and the frame beam 5.

[0057] The present application realizes the connection between the frame columns 4 and the frame beams 5 through the steel structure 3, and can quickly form a prefabricated frame.

[0058] Furthermore, an interpenetration area is provided on the frame column 4, and the interpenetration area is located above the connecting member 1. The interpenetration area is perpendicular to the z-axis direction, and the frame columns 4 above and below the interpenetration area are connected by longitudinal steel bars in the frame column 4. Main reinforcement steel bars 7 are embedded in the frame beam 5, and the main reinforcement steel bars 7 are embedded in the upper end of the frame beam 5. Intermediate reinforcement steel bars 71 are provided in the interpenetration area, and the intermediate reinforcement steel bars 71 are perpendicular to the z-axis direction. Reinforcement sleeves 72 are provided at both ends of the intermediate reinforcement steel bars 71. The main reinforcement steel bars 7 in the frame beam 5 on both sides of the frame column 4 are screwed to the reinforcement sleeves 72.

[0059] Furthermore, a receiving groove 8 is provided on the upper end surface of the frame beam 5, and the receiving groove 8 is provided at one end of the frame beam 5 close to the frame column 4. Auxiliary steel bars 81 are also provided in the interlaced area, and both ends of the auxiliary steel bars 81 are respectively located in the receiving grooves 8 of the two frame beams 5.

[0060] Preferably, the main reinforcement steel bar 7 is partially exposed in the receiving groove 8 .

[0061] When assembling the prefabricated structure provided by the present application, firstly, the steel structure member 3 is used for quick connection, and then the intermediate steel bar 71 and the sleeve are used to connect the main reinforcement steel bars 7 in the two frame beams 5, and finally, concrete is poured in the receiving groove 8 and the connection node between the frame column 4 and the frame beam 5 to solidify the prefabricated structure. In the present application, only two main reinforcement steel bars 7 are provided. When making the prefabricated structure, only the alignment accuracy of the main reinforcement steel bars 7 needs to be considered, which greatly reduces the accuracy requirements during assembly. Moreover, the intermediate reinforcement steel bar 71 connecting the main reinforcement steel bars 7 is movably arranged in the interlaced area. Compared with the reinforcement steel bars fixed in the frame column, the adjustment of the intermediate reinforcement steel bar 71 is more flexible.

[0062] When it is necessary to enhance the connection strength between the frame beam 5 and the frame column 4, before pouring, the auxiliary steel bars 81 can be inserted into the insertion area, and the two ends of the auxiliary steel bars 81 can be arranged in the receiving groove 8, and the receiving groove 8 and the connection node can be poured to achieve the solidification of the prefabricated structure.

[0063] The prefabricated structure provided by the present application only requires the main reinforcement steel bars 7 to be connected separately, and other parts such as the steel structure 3 and the auxiliary reinforcement steel bars 81 do not need to be connected separately, which greatly shortens the time required for assembly. At the same time, it reduces the requirements for assembly accuracy, making it easier to assemble the frame beam 5 and the frame column 4.

[0064] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A steel structure, characterized in that: include: A connecting male component (1) and a connecting female component (2), wherein the connecting male component (1) comprises a first connecting male plate (11) and a second connecting male plate (12), and the connecting female component (2) comprises a first connecting female plate (21) and a second connecting female plate (22), wherein the second connecting male plate (12) and the second connecting female plate (22) are flush at both ends and are fixedly bonded to the surface of the second connecting female plate (22), the first connecting male plate (11) is perpendicular to the second connecting male plate (12), the first connecting female plate (21) is perpendicular to the second connecting female plate (22), the first connecting male plate (11) and the first connecting female plate (21) are fixedly bonded to form a first bonding surface, and the first bonding surface is located at the center of the width of the second connecting male plate (12); A plurality of rib plates (23) are respectively arranged at intervals on the opposite sides of the second connecting male plate (12) and the second connecting female plate (22).

2. The steel structure according to claim 1, characterized in that: The first connecting male plate (11) and the first connecting female plate (21) are further provided with a first locking hole (24), and the second connecting male plate (12) and the second connecting female plate (22) are further provided with a second locking hole (25); the first connecting male plate (11) and the first connecting female plate (21) are fixedly connected by bolts passing through the first locking holes (24), and the second connecting male plate (12) and the second connecting female plate (22) are fixedly connected by bolts passing through the second locking holes (25).

3. The steel structure according to claim 1, characterized in that: The connecting male component (1) further comprises a male component bottom plate (13), wherein the male component bottom plate (13) is arranged between the first connecting male plate (11) and the second connecting male plate (12), wherein the first connecting male plate (11) is vertically fixed to the male component bottom plate (13), and the second connecting male plate (12) is vertically fixed to the male component bottom plate (13); The connecting mother component (2) further comprises a mother component bottom plate (26), wherein the mother component bottom plate (26) is arranged between the first connecting mother plate (21) and the second connecting mother plate (22), wherein the first connecting mother plate (21) is vertically fixed to the mother component bottom plate (26), and the second connecting mother plate (22) is vertically fixed to the mother component bottom plate (26).

4. The steel structure according to claim 3, characterized in that: The connecting male component (1) further comprises a male component side plate (14), wherein the male component side plate (14) is vertically fixed to the male component bottom plate (13), and the first connecting male plate (11) is also vertically fixed to the male component side plate (14).

5. The steel structure according to claim 4, characterized in that: The lower end of the male side plate (14) is flush with the lower end of the second connecting male plate (12), the rib plate (23) is arranged at an end of the male side plate (14) away from the second connecting male plate (12), and a reinforcing plate (16) is arranged between the male side plate (14) and the second connecting male plate (12).

6. The steel structure according to claim 4, characterized in that: The male component side plate (14) and the second connecting male plate (12) are arranged on the male component bottom plate (13) along the x-axis direction, and the male component side plate (14) and the second connecting male plate (12) are respectively located at two ends of the male component bottom plate (13), and the first connecting male plate (11) is located at the center of the male component bottom plate (13), and divides the male component bottom plate (13) into two identical parts along the y-axis direction; The second connecting motherboard (22) is arranged at the end of the mother component base plate (26), and the first connecting motherboard (21) is located at the center of the mother component base plate (26), and divides the mother component base plate (26) into two identical parts along the y-axis direction.

7. The steel structure according to claim 6, characterized in that: A plurality of first fixing anchors (15) are provided on a side of the male side plate (14) away from the first connecting male plate (11), and a plurality of second fixing anchors (27) are provided on an end of the first connecting female plate (21) away from the first connecting male plate (11).

8. A prefabricated structure, characterized in that: include: The steel structure (3) according to any one of claims 1 to 7; The frame column (4) is arranged along the z-axis direction, and the male connection component (1) is pre-buried in the frame column (4) perpendicular to the z-axis direction; Two frame beams (5) are respectively arranged on both sides of the frame column (4), and the connecting female component (2) is pre-embedded on the side of the frame beam (5) facing the frame column (4).

9. The prefabricated structure according to claim 8, characterized in that: The frame column (4) also forms an interpenetrating area above the connecting male part (1). The frame beam (5) is also pre-buried with main reinforcement steel bars (7), and the main reinforcement steel bars (7) are pre-buried at the upper end of the frame beam (5). An intermediate steel bar (71) is arranged in the interlaced area, the intermediate steel bar (71) is arranged perpendicular to the z-axis, steel bar sleeves (72) are arranged at both ends of the intermediate steel bar (71), and the main steel bar (7) is screwed to the steel bar sleeves (72).

10. The prefabricated structure according to claim 9, characterized in that: The upper end surface of the frame beam (5) is also provided with a receiving groove (8), and the receiving groove (8) is arranged at one end of the frame beam (5) close to the frame column (4). Auxiliary steel bars (81) are also inserted into the insertion area, and the two ends of the auxiliary steel bars (81) are respectively located in the receiving grooves (8) of the two frame beams (5).

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