Wall column and steel beam welding-free connecting joint and construction method thereof

Abstract

The application discloses a wall column and steel beam welding-free connecting joint and a construction method thereof. The wall column and steel beam welding-free connecting joint comprises a wall column, a steel beam and a fixing assembly. At least one column foot is arranged on the wall column, the first end of the column foot extends into the inner cavity of the wall column, the second end of the column foot extends out of the wall column, at least one first connecting piece is fixed on the second end, at least one second connecting piece is fixed on the end of the steel beam, a plurality of limiting grooves are arranged on the first connecting piece at intervals, a plurality of limiting blocks are arranged on the second connecting piece at intervals, when assembled, the first connecting piece and the second connecting piece form an outer engagement structure through the limiting blocks and the limiting grooves, the fixing assembly is configured to fixedly connect the second end of the column foot and the end of the steel beam, and a layer of protective concrete is poured around the second end of the column foot and the end of the steel beam. The wall column and steel beam welding-free connecting joint not only does not need to be welded on site, is convenient to construct, but also improves the reliability of the connecting joint and the tensile and shearing properties.

Description

Technical Field

[0001] This invention belongs to the field of prefabricated building technology, and in particular relates to a weld-free connection node between wall columns and steel beams and its construction method. Background Technology

[0002] Concrete and steel are commonly used materials in engineering structure construction. With the introduction of the concept of building industrialization, prefabricated buildings have become a new development direction. Prefabricated buildings refer to the transfer of a large amount of on-site work in traditional construction methods to factories. Building components and accessories (such as floor slabs, wall panels, stairs, balconies, etc.) are processed and manufactured in factories, transported to the construction site, and assembled and installed on-site through reliable connection methods.

[0003] With the continuous development of prefabricated building technology, the industry has put forward higher requirements for steel-concrete structural members. At present, the connection between steel beams and walls and columns in prefabricated buildings is mostly through transition plates, which are welded to the surface of the walls and columns. This connection joint cannot meet the tensile and shear resistance requirements of the design, and it requires on-site welding during construction, which is inconvenient, inefficient and costly. Summary of the Invention

[0004] The purpose of this invention is to provide a weld-free connection joint between a wall column and a steel beam, thereby solving the problems of poor tensile and shear strength and the need for on-site welding in existing wall column-steel beam connection joints. Furthermore, this invention also provides a construction method for this weld-free connection joint between the wall column and the steel beam.

[0005] To achieve this objective, the present invention adopts the following technical solution: A weld-free connection node between a wall column and a steel beam includes a wall column, a steel beam, and a fixing assembly. The wall column has an internal cavity for pouring concrete. The wall column is provided with at least one column base for connection with the steel beam. The first end of the column base extends into the inner cavity of the wall column, and the second end of the column base extends out of the wall column. At least one first connector is fixed to the second end. At least one second connector is fixed to the end of the steel beam. The first connector and the second connector are provided in a one-to-one correspondence. The first connector has multiple limiting grooves or multiple limiting blocks spaced apart on at least one side of its length direction, and the second connector has multiple limiting blocks or multiple limiting grooves spaced apart on at least one side of its length direction. When the end of the steel beam is assembled with the second end of the column base, the first connector and the second connector form an external interlocking structure through the limiting blocks and limiting grooves. Each limiting block has a first gap with its corresponding limiting groove. The fixing assembly is configured to fix the second end of the column base to the end of the steel beam, and a layer of protective concrete is poured around the second end of the column base and the end of the steel beam to fill the first gap.

[0006] Furthermore, the first connector is fixedly welded to the end face of the second end of the column base, and the second connector is fixedly welded to the end face of the end of the steel beam. During assembly, the end of the steel beam is pressed against the end face of the second end of the column base through the second connector, and the first connector and the second connector are engaged by the limiting block and the limiting groove.

[0007] Furthermore, both the second end section of the column base and the end section of the steel beam are "I" shaped structures. The second end of the column base includes a first upper flange, a first lower flange, and a first web plate located between the first upper flange and the first lower flange. The end of the steel beam includes a second upper flange, a second lower flange, and a second web plate located between the second upper flange and the second lower flange. The first web plate extends outward with a first connecting portion, and the second web plate extends outward with a second connecting portion. The end face of the first connecting portion is bent towards the first side to form a first upper bent plate, and the bottom face of the first connecting portion is bent towards the first side to form a first lower bent plate. The first upper bent plate and the first lower bent plate are parallel and located between the first upper flange and the first lower flange. The end face of the second connecting portion is bent towards the second side to form a second upper bent plate, and the bottom face of the second connecting portion is bent towards the second side to form a second lower bent plate. The second upper bent plate and the second lower bent plate are parallel and located between the second upper flange and the second lower flange. The bending directions of the first upper bent plate and the second upper bent plate are opposite.

[0008] Furthermore, a first fixing block is fixed to the bottom surface of the first upper wing plate and the top surface of the first lower wing plate on the second side, a second fixing block is fixed to the top surface of the first upper bent plate and the bottom surface of the first lower bent plate, a third fixing block is fixed to the bottom surface of the second upper wing plate and the top surface of the second lower wing plate on the first side, and a fourth fixing block is fixed to the top surface of the second upper bent plate and the bottom surface of the second lower bent plate. After the first connector and the second connector are engaged, the first fixing block and the third fixing block are staggered in the length direction of the steel beam to form an internal interlocking structure on the second side, and the second fixing block and the fourth fixing block are staggered in the length direction of the steel beam to form an internal interlocking structure on the first side. There is a second gap between the first fixing block and the third fixing block and between the second fixing block and the fourth fixing block, and the protective concrete fills the second gap.

[0009] Furthermore, the first connecting part and the first web plate are provided with multiple first through holes, and the second connecting part and the second web plate are provided with multiple second through holes. After the first connecting part and the second connecting part are engaged, the multiple first through holes and the multiple second through holes correspond one-to-one. The fixing component includes multiple fixing bolts and multiple nuts. The fixing bolts pass through the first through holes and the corresponding second through holes and are locked by the nuts to fix the second end of the column base and the end of the steel beam.

[0010] Furthermore, the protective concrete contains embedded reinforcing bars located at the second end of the column base and the perimeter of the steel beam.

[0011] Furthermore, a concrete protective layer is poured around the perimeter of the wall column. The concrete protective layer has a gap around the base of the column extending out of the wall column. The gap is filled after the protective concrete is poured.

[0012] Furthermore, two first connectors are fixed on the second end of the column base, corresponding to each other in the height direction, and two second connectors are fixed on the end of the steel beam, corresponding to each other in the height direction. One of the first connectors is fixedly welded to the top surface of the second end of the column base, and the other first connector is fixedly welded to the bottom surface of the second end of the column base. One of the second connectors is fixedly welded to the top surface of the end of the steel beam, and the other second connector is fixedly welded to the bottom surface of the end of the steel beam.

[0013] Furthermore, there are overlapping portions in the height direction between the first upper bending plate and the first upper wing plate, between the first lower bending plate and the first lower wing plate, between the second upper bending plate and the second upper wing plate, and between the second lower bending plate and the second lower wing plate. Reinforcing plates are welded and fixed at the overlapping portions to connect the bending plates and the corresponding wing plates into one unit.

[0014] A construction method for a weld-free connection between a wall column and a steel beam includes the following steps: The steel beam is hoisted to a preset height, such that the end of the steel beam is located inside or outside the corresponding column base; The steel beam is pushed laterally outward or inward, causing the limiting block on the first connector to engage in the limiting groove of the second connector, or the limiting block on the second connector to engage in the limiting groove of the first connector. At this time, the end of the steel beam is pressed against the end face of the second end of the column base through the second connector. The second end of the column base is fixedly connected to the end of the steel beam by the fixing assembly. Protective concrete is poured around the second end of the column base and the end of the steel beam to fill the first gap.

[0015] The beneficial effects of this invention are as follows: the weld-free connection node between the wall column and the steel beam has the following advantages compared with the prior art: 1) Through the first and second connectors, an interlocking structure is formed on the outside of the column base and the steel beam, and the first gap between the limiting block and the limiting groove is filled with concrete. This not only improves the connection strength between the wall column and the steel beam, but also greatly improves the tensile and shear resistance of the connection node.

[0016] 2) Wall columns, steel beams, and other accessories for connection nodes can all be prefabricated in the factory without on-site welding, making construction convenient, production costs low, construction cycle short, and industrialization highly efficient, which is conducive to the promotion and application of prefabricated buildings.

[0017] 3) Bending plates are installed at the connection ends of the column base and the steel beam. Fixing blocks are fixedly welded to the bending plates. The bending plates not only play a reinforcing role, but also form an interlocking structure on the inner side of the column base and the steel beam. The second gap between the fixing blocks is filled with concrete. This further improves the connection strength between the wall column and the steel beam, and further improves the tensile and shear resistance of the connection node to ensure the stability and reliability of the connection node.

[0018] 4) Protective concrete is poured around the second end of the column base and the end of the steel beam. The protective concrete fills the first and second gaps to ensure the stability and reliability of the connection node. At the same time, the concrete protective layer can also strengthen the connection between the column base and the steel beam, and cover the exposed parts to prevent rust and provide protection.

[0019] 5) A gap is set around the base of the wall column where it extends out of the wall column. After the protective concrete is poured, the gap is filled so that the protective concrete and the concrete protective layer around the wall column are integrated into one, further improving the stability and reliability of the connection node. Attached Figure Description

[0020] Figure 1 This is an assembly schematic diagram of the weld-free connection node between the wall column and the steel beam provided in an embodiment of the present invention; Figure 2 This is a magnified view of a portion of point A in the image; Figure 3 This is a top view of the wall column and steel beam weld-free connection node provided in an embodiment of the present invention before assembly; Figure 4 This is a schematic diagram of the pouring of protective concrete around the weld-free connection node between the wall column and the steel beam provided in an embodiment of the present invention; Figure 5 This is a cross-sectional enlarged schematic diagram of the protective concrete poured around the weld-free connection node between the wall column and the steel beam provided in an embodiment of the present invention. Figure 6 This is a schematic diagram of the structure of the second end of the column base of the wall column and steel beam weld-free connection node provided in an embodiment of the present invention; Figure 7 yes Figure 6 Cross-sectional view along the AA direction; Figure 8 yes Figure 6 Cross-sectional view along the BB direction; Figure 9 This is a partial structural diagram of the end of the steel beam in the weld-free connection node between the wall column and the steel beam provided in an embodiment of the present invention; Figure 10 yes Figure 9 Cross-sectional view along the CC direction; Figure 11 yes Figure 9 Cross-sectional view along the DD direction. Detailed Implementation

[0021] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] To facilitate understanding of the present invention, a more complete description of the invention will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] Please see Figures 1 to 11 As shown, in this embodiment, a weld-free connection node between a wall column and a steel beam includes a wall column 1, a steel beam 2, and a fixing component 3. The wall column 1 has an inner cavity for pouring concrete. A column base 4 is welded and fixed to the wall column 1 at the connection point with the steel beam 2. The first end of the column base 4 extends into the inner cavity of the wall column 1, and the second end of the column base 4 extends out of the wall column 1. At least one first connector 5 is welded and fixed to the second end of the column base 4. At least one second connector 6 is welded and fixed to the end of the steel beam 2. The first connector 5 and the second connector 6 are provided in a one-to-one correspondence. The first connector 5 has a plurality of limiting grooves 50 spaced apart on at least one side along its length, and the second connector 6 has a plurality of limiting blocks 60 spaced apart on at least one side along its length. When the end of the steel beam 2 is assembled with the second end of the column base 4, the plurality of limiting blocks 60 of the second connector 6 are located within the plurality of limiting grooves 50 of the first connector 5 to form an external interlocking structure. Each limiting block 60 has a first gap with its corresponding limiting groove 50. The fixing component 3 is configured to fix the second end of the column base 4 to the end of the steel beam 2. A layer of protective concrete 7 is poured around the second end of the column base 4 and the end of the steel beam 2 to fill the first gap.

[0024] It should be noted that the first connector 5 and the second connector 6 can also be in the following form: the first connector 5 has a plurality of limiting blocks spaced apart on at least one side in the length direction, and the second connector 6 has a plurality of limiting grooves spaced apart on at least one side in the length direction. When the end of the steel beam 2 is assembled with the second end of the column base 4, the limiting blocks of the first connector 5 are located in the limiting grooves of the second connector 6.

[0025] Preferably, multiple reinforcing members are fixed in the inner cavity of the wall column 1 to strengthen the overall wall column 1. At the same time, after the concrete is poured into the inner cavity of the wall column 1, the concrete in the inner cavity can be connected to the wall column 1 as a whole, which significantly improves the overall strength of the wall column 1.

[0026] Preferably, the fixing component 3 includes multiple sets of fixing parts, each set of fixing parts including fixing bolts 30 and nuts 31.

[0027] Preferably, the limiting groove 50 is an open square groove, and the limiting block 60 is a square block that is set to match the limiting groove 50 and whose overall size is slightly smaller than the limiting groove 50, so that there is a first gap between the limiting block 60 and the limiting groove 50. The first gap not only facilitates the assembly of the first connecting member 5 and the second connecting member 6, but also allows for fine adjustment of the installation position of the end of the steel beam 2 at the second end of the column foot 4.

[0028] As can be seen, the first connector 5 and the second connector 6 form an interlocking structure on the outer side of the column base 4 and the steel beam 2. The first gap between the limiting block 60 and the limiting groove 50 is filled by pouring protective concrete 7, thus connecting the wall column 1 and the steel beam 2. This not only improves the connection strength between the wall column 1 and the steel beam 2, but also significantly enhances the tensile and shear resistance of the connection joint. The wall column 1, the steel beam 2, and other accessories of the connection joint can all be prefabricated in the factory, eliminating the need for on-site welding. This facilitates construction, reduces manufacturing costs, shortens the construction cycle, and increases the degree of industrialization, which is beneficial for the promotion and application of prefabricated buildings. The protective concrete 7 also strengthens the connection between the column base 4 and the steel beam 2 and covers exposed parts, providing rust prevention and protection.

[0029] In one embodiment, the first connector 5 is fixedly welded to the end face of the second end of the column base 4, and the second connector 6 is fixedly welded to the end face of the end of the steel beam 2. During assembly, the end of the steel beam 2 is pressed against the end face of the second end of the column base 4 through the second connector 6, and the first connector 5 and the second connector 6 are engaged by the limiting block 60 and the limiting groove 50.

[0030] In one embodiment, the second end section of the column base 4 and the end section of the steel beam 2 are both I-shaped structures. The second end of the column base 4 includes a first upper flange 40, a first lower flange 41, and a first web 42 located between the first upper flange 40 and the first lower flange 41. The end of the steel beam 2 includes a second upper flange 20, a second lower flange 21, and a second web 22 located between the second upper flange 20 and the second lower flange 21. The first web 42 extends outward with a first connecting portion 43, and the second web 22 extends outward with a second connecting portion 23. The end face of the first connecting portion 43 is bent towards the first side to form a first upper bent plate 44, and the bottom face of the first connecting portion 43 is bent towards the first side to form... The first lower bending plate 45, the first upper bending plate 44 and the first lower bending plate 45 are parallel and perpendicular to the first connecting part 43. The first upper bending plate 44 and the first lower bending plate 45 are both located between the first upper wing plate 40 and the first lower wing plate 41. The end face of the second connecting part 23 is bent to the second side to form the second upper bending plate 24. The bottom face of the second connecting part 23 is bent to the second side to form the second lower bending plate 25. The second upper bending plate 24 and the second lower bending plate 25 are parallel and perpendicular to the second connecting part 23. The second upper bending plate 24 and the second lower bending plate 25 are located between the second upper wing plate 20 and the second lower wing plate 21. The bending directions of the first upper bending plate 44 and the second upper bending plate 24 are opposite.

[0031] It can be seen that by setting the first upper bending plate 44, the first lower bending plate 45, the second upper bending plate 24 and the second lower bending plate 25, the first connecting part 43 and the second connecting part 23 can be strengthened.

[0032] In one embodiment, a first fixing block 46 is fixed to the bottom surface of the first upper wing plate 40 and the top surface of the first lower wing plate 41 on the second side, a second fixing block 47 is fixed to the top surface of the first upper bent plate 44 and the bottom surface of the first lower bent plate 45, a third fixing block 26 is fixed to the bottom surface of the second upper wing plate 20 and the top surface of the second lower wing plate 21 on the first side, and a fourth fixing block 27 is fixed to the top surface of the second upper bent plate 24 and the bottom surface of the second lower bent plate 25. After the first connector 5 and the second connector 6 are engaged, the first fixing block 46 and the third fixing block 26 are staggered in the length direction of the steel beam 2 to form an internal interlocking structure on the second side, and the second fixing block 47 and the fourth fixing block 27 are staggered in the length direction of the steel beam 2 to form an internal interlocking structure on the first side. There is a second gap between the first fixing block 46 and the third fixing block 26 and between the second fixing block 47 and the fourth fixing block 27, and the protective concrete 7 fills the second gap.

[0033] As can be seen, the cooperation of the first fixing block 46, the second fixing block 47, the third fixing block 26 and the fourth fixing block 27 realizes the formation of an interlocking mechanism on the inner side of the column base 4 and the steel beam 2, and at the same time can play a certain role in strengthening the bending plate. The second gap between two adjacent fixing blocks is filled with concrete to further improve the strength and tensile and shear resistance of the connection node.

[0034] In one embodiment, the first connecting part 43 and the first web plate 42 are provided with a plurality of first through holes 48, and the second connecting part 23 and the second web plate 22 are provided with a plurality of second through holes 28. After the first connecting member 5 and the second connecting member 6 are engaged, the plurality of first through holes 48 and the plurality of second through holes 28 correspond one-to-one. The fixing component 3 includes a plurality of fixing bolts and a plurality of nuts. The fixing bolts pass through the first through holes 48 and the corresponding second through holes 28 and are locked by the nuts to fix the second end of the column base 4 and the end of the steel beam 2.

[0035] As can be seen, by opening through holes in the first connecting part 43, the first web plate 42, the second connecting part 23 and the second web plate 22, and by passing the fixing bolts through the corresponding through holes to connect the column base 4 and the steel beam 2, a fixed connection method that is easy to operate and easy to implement is provided.

[0036] As one implementation method, reinforcing steel hoops 70 are pre-embedded in the protective concrete 7, located around the second end of the column base 4 and the end of the steel beam 2. By setting the reinforcing steel hoops 70, the overall strength of the protective concrete 7 can be improved, thereby further enhancing the connection strength between the column base 4 and the steel beam 2.

[0037] In one implementation, a concrete protective layer 10 is poured around the perimeter of the wall column 1. During the pouring of the concrete protective layer 10, a rubber ring 11 is set around the root of the part of the column base 4 that extends out of the wall column 1. The rubber ring 11 makes a concave gap form around the root of the part of the column base 4 that extends out of the wall column 1 after the concrete protective layer 10 is poured and formed. The gap is filled after the protective concrete 7 is poured.

[0038] As can be seen, a gap is formed around the base of the wall column 1 where the column foot 4 extends out of the wall column 1. After the protective concrete 7 is poured, the gap is filled so that the protective concrete 7 and the concrete protective layer 15 are integrated into one, further improving the stability and reliability of the connection node.

[0039] In one embodiment, two first connectors 5 are fixed on the second end of the column base 4, which are correspondingly arranged in the height direction. Two second connectors 6 are fixed on the end of the steel beam 2, which are correspondingly arranged in the height direction. One of the first connectors 5 is fixedly welded to the top surface of the second end of the column base 4, and the other first connector 5 is fixedly welded to the bottom surface of the second end of the column base 4. One of the second connectors 6 is fixedly welded to the top surface of the end of the steel beam 2, and the other second connector 6 is fixedly welded to the bottom surface of the end of the steel beam 2.

[0040] It can be seen that by setting two first connectors 5 and two second connectors 6, the connection strength and stability between the column base 4 and the steel beam 2 are further improved.

[0041] In one embodiment, the first upper bending plate 44 and the first upper wing plate 40, the first lower bending plate 45 and the first lower wing plate 41, the second upper bending plate 24 and the second upper wing plate 20, and the second lower bending plate 25 and the second lower wing plate 21 all have overlapping portions in the height direction. Reinforcing plates 8 are welded and fixed at the overlapping portions to connect the bending plates and the corresponding wing plates into one unit.

[0042] It is evident that by setting the reinforcing plate 8, the connection strength between the bending plate and the wing plate is improved.

[0043] The specific on-site construction method for the above-mentioned weld-free connection nodes between wall columns and steel beams includes the following steps: Hoist steel beam 2 to the preset height, so that the end of steel beam 2 is located inside or outside the corresponding column base 4 and is at the same horizontal position. Laterally pushing the steel beam 2 outward or inward causes the limiting block 60 on the second connector 6 to engage with the limiting groove 50 of the first connector 5, forming an external interlocking structure between the steel beam 2 and the column base 4. Simultaneously, the cooperation of the first fixing block 46, the second fixing block 47, the third fixing block 26, and the fourth fixing block 27 forms an external interlocking structure between the column base 4 and the steel beam 2. At this time, the end of the steel beam 2 is pressed against the end face of the second end of the column base 4 via the second connector 6. The second end of the column base 4 is fixedly connected to the end of the steel beam 2 by the fixing component 3. Steel reinforcement hoops 70 are installed around the second end of column base 4 and the end of steel beam 2. Install casting mold 9 around the second end of column base 4 and the end of steel beam 2. Protective concrete 7 is poured around the second end of the column base 4 and the end of the steel beam 2 using the casting mold 9.

[0044] The above embodiments merely illustrate the basic principles and characteristics of the present invention. The present invention is not limited to the above examples. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A weld-free connection node between a wall column and a steel beam, characterized in that, The weld-free connection node between the wall column and the steel beam includes the wall column, the steel beam, and a fixing assembly. The wall column has an internal cavity for pouring concrete. The wall column is provided with at least one column foot for connecting to the steel beam. The first end of the column foot extends into the inner cavity of the wall column, and the second end of the column foot extends out of the wall column. At least one first connector is fixed to the second end. At least one second connector is fixed to the end of the steel beam. The first connector and the second connector are provided in a one-to-one correspondence. The first connector has a plurality of limiting grooves or limiting blocks spaced apart on at least one side of its length direction, and the second connector has a plurality of limiting blocks or limiting grooves spaced apart on at least one side of its length direction. When the end of the steel beam is assembled with the second end of the column base, the first connector and the second connector form an external interlocking structure through the limiting blocks and limiting grooves. Each limiting block has a first gap with its corresponding limiting groove. The fixing component is configured to fix the second end of the column base to the end of the steel beam, and a layer of protective concrete is poured around the second end of the column base and the end of the steel beam to fill the first gap. The first connector is fixedly welded to the end face of the second end of the column base, and the second connector is fixedly welded to the end face of the end of the steel beam. During assembly, the end of the steel beam is pressed against the end face of the second end of the column base by the second connector, and the first connector and the second connector are engaged by the limiting block and the limiting groove. The second end section of the column base and the end section of the steel beam are both "I" shaped structures. The second end of the column base includes a first upper flange, a first lower flange, and a first web plate located between the first upper flange and the first lower flange. The end of the steel beam includes a second upper flange, a second lower flange, and a second web plate located between the second upper flange and the second lower flange. The first web plate extends outward with a first connecting portion, and the second web plate extends outward with a second connecting portion. The end face of the first connecting portion is bent towards a first side to form a first upper bent plate, and the bottom face of the first connecting portion is bent towards a first side to form a first lower bent plate. The first upper bent plate and the first lower bent plate are parallel and located between the first upper flange and the first lower flange. The end face of the second connecting portion is bent towards a second side to form a second upper bent plate, and the bottom face of the second connecting portion is bent towards a second side to form a second lower bent plate. The second upper bent plate and the second lower bent plate are parallel and located between the second upper flange and the second lower flange. The bending directions of the first upper bent plate and the second upper bent plate are opposite.

2. The weld-free connection node between the wall column and the steel beam according to claim 1, characterized in that, A first fixing block is fixed to the bottom surface of the first upper wing plate and the top surface of the first lower wing plate on the second side. A second fixing block is fixed to the top surface of the first upper bent plate and the bottom surface of the first lower bent plate. A third fixing block is fixed to the bottom surface of the second upper wing plate and the top surface of the second lower wing plate on the first side. A fourth fixing block is fixed to the top surface of the second upper bent plate and the bottom surface of the second lower bent plate. After the first connector and the second connector are engaged, the first fixing block and the third fixing block are staggered in the length direction of the steel beam to form an internal engagement structure on the second side. The second fixing block and the fourth fixing block are staggered in the length direction of the steel beam to form an internal engagement structure on the first side. There is a second gap between the first fixing block and the third fixing block and between the second fixing block and the fourth fixing block. The protective concrete fills the second gap.

3. The weld-free connection node between the wall column and the steel beam according to claim 1, characterized in that, The first connecting part and the first web plate are provided with a plurality of first through holes, and the second connecting part and the second web plate are provided with a plurality of second through holes. After the first connecting part and the second connecting part are engaged, the plurality of first through holes and the plurality of second through holes correspond one-to-one. The fixing component includes a plurality of fixing bolts and a plurality of nuts. The fixing bolts pass through the first through holes and the corresponding second through holes and are locked by the nuts to fix the second end of the column base and the end of the steel beam.

4. The weld-free connection node between the wall column and the steel beam according to claim 1, characterized in that, The protective concrete contains embedded reinforcing bars located at the second end of the column base and the periphery of the end of the steel beam.

5. The weld-free connection node between wall column and steel beam according to claim 1, characterized in that, A concrete protective layer is poured around the perimeter of the wall column. The concrete protective layer has a gap around the base of the column extending out of the wall column. The gap is filled after the protective concrete is poured.

6. The weld-free connection node between the wall column and the steel beam according to claim 1, characterized in that, Two first connectors, corresponding to each other in the height direction, are fixed to the second end of the column base. Two second connectors, corresponding to each other in the height direction, are fixed to the end of the steel beam. One of the first connectors is fixedly welded to the top surface of the second end of the column base, and the other of the first connectors is fixedly welded to the bottom surface of the second end of the column base. One of the second connectors is fixedly welded to the top surface of the end of the steel beam, and the other of the second connectors is fixedly welded to the bottom surface of the end of the steel beam.

7. The weld-free connection node between wall column and steel beam according to claim 1, characterized in that, The first upper bent plate and the first upper wing plate, the first lower bent plate and the first lower wing plate, the second upper bent plate and the second upper wing plate, and the second lower bent plate and the second lower wing plate all have overlapping portions in the height direction. Reinforcing plates are welded and fixed at the overlapping portions to connect the bent plates and the corresponding wing plates into one unit.

8. A construction method for a weld-free connection between a wall column and a steel beam, characterized in that, The weld-free connection between the wall column and the steel beam adopts the weld-free connection joint as described in any one of claims 1-7, and the construction method of the weld-free connection joint between the wall column and the steel beam includes the following steps: The steel beam is hoisted to a preset height, such that the end of the steel beam is located inside or outside the corresponding column base; The steel beam is pushed laterally outward or inward, causing the limiting block on the first connector to engage in the limiting groove of the second connector, or the limiting block on the second connector to engage in the limiting groove of the first connector. At this time, the end of the steel beam is pressed against the end face of the second end of the column base through the second connector. The second end of the column base is fixedly connected to the end of the steel beam by the fixing assembly. Protective concrete is poured around the second end of the column base and the end of the steel beam to fill the first gap.

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