A prefabricated composite wall and steel structure connecting joint

Abstract

The application provides a prefabricated composite wall and steel structure connecting joint, which comprises a composite wall, a plurality of connecting assemblies arranged along the edges of the composite wall, and each of the connecting assemblies is partially embedded in the composite wall and partially extends out of the composite wall; a steel structure connected with the part of each of the connecting assemblies extending out of the composite wall; wherein the composite wall and the part of the connecting assemblies embedded in the composite wall are in an integrated structure. The connecting assemblies and the composite wall are reliably connected, the shear and bending resistance of the connecting part is increased, the wall surface is neat, the connection between the composite wall and the steel structure is tight, and the gap is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of architectural design, and in particular to a connection node between a prefabricated composite wall and a steel structure. Background Art

[0002] Prefabricated composite walls consist of outer wall panels, an intermediate insulation layer, inner wall panels, and connectors. Prefabricated composite walls are a type of building wall structure that is factory-fabricated and requires only on-site installation. Their factory-fabricated manufacturing process utilizes standardized design and automated production technologies, resulting in high efficiency and quality. Consequently, prefabricated composite walls are widely used in various types of construction projects.

[0003] At present, there are problems such as weak stress in the connection nodes between prefabricated composite walls and the main structure, uneven wall surfaces caused by partial exposure of the connection nodes, large gaps caused by loose contact between the prefabricated composite walls and steel structures, and complex on-site construction. Especially in areas such as the construction of new steel structures and reinforcement and renovation of old houses that require the use of steel structure frames, the defects of the connection nodes between prefabricated composite walls and steel structures are more prominent. Summary of the Invention

[0004] The purpose of the present invention is to provide a connection node between a prefabricated composite wall and a steel structure to solve the problems of weak stress at the connection node between the existing prefabricated composite wall and the main structure, uneven wall surface caused by partial exposure of the connection node, large gaps caused by loose contact between the prefabricated composite wall and the steel structure, and complex on-site construction.

[0005] To solve the above technical problems, the present invention provides a connection node between a prefabricated composite wall and a steel structure, comprising:

[0006] composite walls;

[0007] a plurality of connection assemblies spaced along an edge of the composite wall, wherein each of the connection assemblies is partially embedded in the composite wall and partially extends outside the composite wall;

[0008] a steel structure connected to a portion of each of the connection assemblies extending outside the composite wall;

[0009] The composite wall and the portion of the connection assembly built into the composite wall are integrated.

[0010] Preferably, the composite wall comprises:

[0011] Insulation layer;

[0012] An outer wall panel is arranged on one side of the insulation layer;

[0013] An inner wall panel is arranged on the other side of the insulation layer;

[0014] The inner wall panels, outer wall panels, thermal insulation layer, and the portion of the connection assembly built into the composite wall are integrated by casting.

[0015] Preferably, the connection assembly comprises:

[0016] a plurality of first connecting members arranged at intervals along an edge of the composite wall, each of the first connecting members being partially built into the composite wall and partially extending outside the composite wall;

[0017] a fixing member, passing through the first connecting member and the thermal insulation layer, and used for fixing the first connecting member to the thermal insulation layer, wherein the number of the fixing members is the same as the number of the first connecting members;

[0018] The limiting portion is connected to the portion of the first connecting member extending outside the composite wall.

[0019] Preferably, the connection assembly further comprises:

[0020] a plurality of second connecting members, wherein the second connecting members are built into the composite wall, and the number of the second connecting members is the same as the number of the first connecting members;

[0021] The fixing member passes through the first connecting member and the second connecting member, and is used to fix the first connecting member and the second connecting member together.

[0022] Preferably, the connection assembly further comprises:

[0023] a plurality of third connecting members connected to the second connecting members, wherein the number of the third connecting members is the same as the number of the second connecting members;

[0024] The fixing member passes through the first connecting member, the second connecting member and the third connecting member, and is used to fix the first connecting member, the second connecting member and the third connecting member together.

[0025] Preferably, the limiting portion is a limiting nut, and the portion of the first connecting member extending outside the composite wall is provided with a first threaded section, which passes through the steel structure and is threadedly connected to the limiting nut.

[0026] Preferably, the fixing member is a bolt, a first threaded hole is provided on a portion of the first connecting member embedded in the composite wall, a second threaded hole is provided on an inner wall of the second connecting member near one end, a third threaded hole is provided on an inner wall of the third connecting member, and the bolt is threadedly connected to the first threaded hole, the second threaded hole and the third threaded hole.

[0027] Preferably, a fourth threaded hole is provided on the inner wall of the second connecting member near the other end, a second threaded section is provided on one end of the third connecting member, and the second threaded end is threadedly connected to the fourth threaded hole;

[0028] Wherein, the diameter of the fourth threaded hole is larger than the diameter of the second threaded hole.

[0029] Preferably, the steel structure comprises:

[0030] Multiple steel plates form a closed structure;

[0031] The portion of the connection assembly extending outside the composite wall is connected to the steel plate.

[0032] Preferably, the steel structure comprises:

[0033] Two steel beams, set opposite each other;

[0034] Two steel columns are arranged opposite to each other, and the two steel beams and the two steel columns form a closed quadrilateral structure;

[0035] The portion of the connection assembly extending outside the composite wall is connected to the steel beam or steel column.

[0036] Compared with the prior art, the connection node between the prefabricated composite wall and the steel structure of the present invention has the following advantages:

[0037] The present invention comprises a composite wall; multiple connection assemblies spaced along the edge of the composite wall, each of which is partially embedded in the composite wall and partially extends outside the composite wall; and a steel structure connected to the portion of each connection assembly extending outside the composite wall; wherein the composite wall and the portion of the connection assembly embedded in the composite wall are integrated. Thus, the prefabricated composite wall and steel structure connection node provided by the present invention is characterized by multiple connection assemblies arranged along the edge of the composite wall, with the portion of each connection assembly connected to the composite wall embedded in the composite wall, and the connection assembly and composite wall being integrated. This design not only ensures a reliable connection between the connection assembly and the composite wall, but also enhances the shear and bending resistance of the connection, maintains a neat wall surface, and securely connects the composite wall and steel structure, reducing gaps. This eliminates many post-processing steps, reduces construction time, and improves construction efficiency. Both the composite wall and the connection assemblies can be directly processed and assembled in the factory. Therefore, during on-site construction, workers only need to dock and install them. This connection method is highly practical, fast, and facilitates quality control. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a diagram of the connection structure of the composite wall and the connection assembly in one embodiment of the present invention;

[0039] Figure 2 is a perspective view of a steel beam according to one embodiment of the present invention;

[0040] Figure 3 is a perspective view of a steel column in one embodiment of the present invention;

[0041] Figure 4 This is a structural diagram of a connection between a connection assembly and a steel beam or a steel column in one embodiment of the present invention;

[0042] Figure 5 yes Figure 4 Cross-sectional view at AA in the middle;

[0043] Figure 6 is an exploded view of the insulation layer and the connection assembly in one embodiment of the present invention;

[0044] Figure 7 is a cross-sectional view of a second connecting member in one embodiment of the present invention;

[0045] Figure 8 is a cross-sectional view of a third connecting member in one embodiment of the present invention;

[0046] Figure 9 is a schematic diagram of the overall structure of the first connecting member in one embodiment of the present invention;

[0047] Figure 10 yes Figure 9 Cross-sectional view at DD in the middle;

[0048] In the figure,

[0049] 1-steel beam; 11-first through hole;

[0050] 2-steel column; 12-second through hole;

[0051] 3-composite wall; 31-exterior wall panel;

[0052] 32-insulation layer; 33-inner wall panel;

[0053] 34-third through hole; 10-connection component;

[0054] 4-second connecting piece; 41-fourth bolt hole;

[0055] 42-second bolt hole; 5-third connecting piece;

[0056] 51-second threaded section; 52-third bolt hole;

[0057] 6-first connecting member; 61-fixing plate;

[0058] 62-limiting plate; 63-first bolt hole;

[0059] 64-first thread segment; 65-limiting groove;

[0060] 7-high-strength bolts; 71-high-strength nuts;

[0061] 8-Limiting part. DETAILED DESCRIPTION

[0062] To further clarify the objectives, advantages, and features of the present invention, the connection node between the prefabricated composite wall and the steel structure proposed in the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the drawings are in a very simplified form and are not to exact scale, and are only used to facilitate and clearly illustrate the purpose of the embodiments of the present invention. It should be understood that the drawings in this specification do not necessarily show the specific structure of the present invention to scale, and that the illustrative features used in the drawings to illustrate certain principles of the present invention may also be slightly simplified. The specific design features of the present invention disclosed herein, including, for example, specific dimensions, orientations, positions, and shapes, will be determined in part by the specific intended application and use environment. Furthermore, in the embodiments described below, the same reference numerals may sometimes be used across different drawings to represent the same parts or parts with the same function, and their repeated descriptions may be omitted. In this specification, similar numbers and letters are used to represent similar items. Therefore, once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0063] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0064] Ginseng Figures 1 to 10 A specific embodiment of a connection node between a prefabricated composite wall and a steel structure is disclosed. The connection node comprises: a composite wall 3; a plurality of connection assemblies 10 spaced along the edge of the composite wall 3, with each connection assembly 10 partially embedded in the composite wall 3 and partially extending outside the composite wall 3; and a steel structure (not shown) connected to the portion of each connection assembly 10 extending outside the composite wall 3. The composite wall 3 and the portion of the connection assembly 10 embedded in the composite wall 3 are integrated.

[0065] The connection node between the prefabricated composite wall and the steel structure provided in this embodiment is achieved by arranging multiple connection components 10 along the edge of the composite wall 3, with the portion of each connection component 10 connected to the composite wall 3 built into the composite wall 3, and integrating the connection components 10 and the composite wall 3. While ensuring a reliable connection between the connection components 10 and the composite wall 3, this design increases the shear and bending resistance of the connection, keeps the wall surface neat, and enables a tight connection between the composite wall 3 and the steel structure, reducing gaps, thereby eliminating many post-processing steps, reducing construction time, and improving construction efficiency. Both the composite wall 3 and the connection components 10 can be directly processed and assembled in the factory. Therefore, during on-site construction, workers only need to dock and install them. This connection method is highly practical, has a fast construction speed, and is easy to control construction quality.

[0066] Exemplarily, the composite wall 3 includes: an insulation layer 32; an outer wall panel 31, which is arranged on one side of the insulation layer 32; and an inner wall panel 33, which is arranged on the other side of the insulation layer 32; wherein the inner wall panel 33, the outer wall panel 31, the insulation layer 32, and the part of the connection component 10 built into the composite wall 3 are integrated by casting.

[0067] Specifically, refer to Figure 1 、 Figures 4 to 6 As shown, outer wall panels 31 and inner wall panels 33 are provided on both sides of the insulation layer 32. The insulation layer 32 is made of foam board materials such as polystyrene and polyurethane, both of which have good thermal insulation properties. The outer wall panels 31 and the inner wall panels 33 are formed by pouring concrete. It should be noted that before pouring the outer wall panels 31 and the inner wall panels 33, the connection assembly 10 is first connected to the insulation layer 32, and then the outer wall panels 31 and the inner wall panels 33 are poured, so that the outer wall panels 31, the insulation layer 32 and the inner wall panels 33, as well as the portion of the connection assembly 10 built into the composite wall 3, can be integrated. While the connection assembly 10 is reliably connected to the composite wall 3, the shear and bending resistance of the connection between the connection assembly 10 and the composite wall 3 can also be increased. Furthermore, the outer wall panels 31, insulation layer 32, inner wall panels 33, and the portion of the connection assembly 10 embedded within the composite wall 3 are fixed by casting, allowing for direct factory assembly. Therefore, on-site construction requires only a single connection between the panels and the components. This connection method is highly practical, fast, and facilitates quality control.

[0068] Exemplarily, the steel structure (not shown in the figure) includes: a plurality of steel plates (shown in the figure); the portion of the connection assembly 10 extending outside the composite wall 3 is connected to the steel plates.

[0069] Specifically, refer to Figure 1As shown, the steel plates can be plate-shaped structures. In this case, there are at least three steel plates to form a closed triangular structure. The steel plates can also be constructed into an L-shaped structure. When the number of steel plates is two, the steel structure is a quadrilateral structure. When the number of steel plates is three or more, the steel structure can be a polygonal structure. Of course, the steel plates can also be constructed into a semicircular structure. When the number of steel plates is two, the steel structure is a circular structure. Therefore, the shape of the steel structure can be triangular, quadrilateral, polygonal, or circular. In this embodiment, there are no specific requirements for the specific shape of the steel structure, and the specific shape of the steel structure can be selected based on actual construction requirements. It should be noted that when the steel plates are plate-shaped structures and the steel structure is a triangular structure, at least three connecting assemblies 10 are required to securely connect the composite wall 3 to the steel structure. When the steel plates are plate-shaped structures and the steel structure is a quadrilateral structure, at least four connecting assemblies 10 are required to securely connect the composite wall 3 to the steel structure. When the steel plate is a semicircular structure, at least two connection assemblies 10 are required to securely connect the composite wall 3 to the steel structure.

[0070] Furthermore, the steel structure includes: two steel beams 1, arranged opposite to each other; two steel columns 2, arranged opposite to each other, and the two steel beams 1 and the two steel columns 2 form a closed quadrilateral structure; the part of the connecting component 10 extending outside the composite wall 3 is connected to the steel beam 1 or the steel column 2.

[0071] Specifically, refer to Figures 1 to 3 As shown, the steel structure can also be configured to include two steel beams 1 and two steel columns 2. Both the steel beams 1 and the steel columns 2 are I-shaped. Since most composite walls 3 in building construction adopt a quadrilateral structure, the following description will use a steel structure comprising two steel beams 1 and two steel columns 2, with the steel beams 1 and steel columns 2 forming an I-shaped structure, to illustrate the specific connection relationship between the connection nodes of the prefabricated composite wall and the steel structure. In this embodiment, the steel structure is preferably rectangular. The steel beam 1 is provided with at least one first through-hole 11, through which the portion of the connecting assembly 10 extending outside the composite wall 3 passes, thereby connecting the connecting assembly 10 to the steel beam 1. The steel column 2 is provided with at least one second through-hole 12, through which the portion of the connecting assembly 10 extending outside the composite wall 3 passes, thereby connecting the connecting assembly 10 to the steel column 2. When the steel structure is configured as a rectangular structure, at least four connecting assemblies 10 are required to securely connect the composite wall 3 to the steel structure. That is, at least one connecting assembly 10 is provided on the four sides of the composite wall 3 to fixedly connect the composite wall 3 with the steel beam 1 or the steel column 2 .

[0072] Exemplarily, the connection assembly 10 includes: a plurality of first connection members 6 arranged at intervals along the edge of the composite wall 3, each first connection member 6 being partially embedded in the composite wall 3 and partially extending outside the composite wall 3; a fixing member (not shown) for fixing the first connection member 6 to the composite wall 3; and a limiting portion 8 connected to the portion of the first connection member 6 extending outside the composite wall 3.

[0073] Specifically, refer to Figures 1 to 6 、 Figure 9 and Figure 10As shown, the first connecting member 6 includes a fixing plate 61. The fixing plate 61 can be constructed as a plate-shaped structure. Two limiting plates 62 are symmetrically arranged on the top of the fixing plate 61. Two first threaded sections 64 are symmetrically arranged on the bottom of the fixing plate 61. The two limiting plates 62 are respectively provided with first bolt holes 63. And the two limiting plates 62 form a limiting groove 65 on the top of the fixing plate 61. Among them, the fixing member can be a high-strength bolt 7. The thermal insulation layer 32 is provided with a third through hole 34. When installing the first connecting member 6 and the composite plate 3, first, the thermal insulation layer 32 is plugged into the limiting groove 65. Secondly, the two first bolt holes 63 are aligned with the position of the third through hole 34. Finally, one end of the high-strength bolt 7 is passed through the two first bolt holes 63 and the third through hole 34, and the high-strength bolt 7 is threadedly connected to the two first bolt holes 63 to achieve fixed installation of the first connecting member 6 and the thermal insulation layer 32. After the first connector 6 and the insulation layer 32 are installed, the two ends of the high-strength bolt 7 are respectively threadedly connected to the high-strength nut 71 to limit the two ends of the high-strength bolt 7 to strengthen the connection between the high-strength bolt 7 and the first connector 6. The bottom of the fixing plate 61 is aligned with the connection surface of the steel beam 1 or the steel column 2 to ensure the tightness of the connection between the bottom of the composite wall 3 and the steel structure. Among them, the limiting part 8 can be a limiting nut. The two limiting plates 62 and the high-strength bolt 7 included in the first connector 6 are built into the composite wall 3. The two first thread segments 64 included in the first connector 6 pass through the first through hole 11 or the second through hole 12, and by threading the first thread segment 64 with the limiting nut, the first connector 6 is fixedly connected to the steel beam 1 or the steel column 2. Thus, the production of the prefabricated composite wall is completed. By arranging at least four connection assemblies 10 along the edge of the composite wall 3, and embedding the two limit plates 62, high-strength bolts 7, and two high-strength nuts 71 included in the first connection member 6 within the composite wall 3, and integrating the two limit plates 62, high-strength bolts 7, and two high-strength nuts 71 with the composite wall 3, this design not only reliably connects the first connection member 6 to the composite wall 3, but also increases the shear and bending resistance of the connection, keeps the wall surface neat, and enables a tight connection between the composite wall 3 and the steel structure, reducing gaps, thereby eliminating many post-processing steps, reducing construction time, and improving construction efficiency. The composite wall 3, first connection member 6, high-strength bolts 7, and high-strength nuts 71 can all be directly processed and assembled in the factory. Therefore, during on-site construction, workers only need to dock and install them. This connection method is highly practical, has a fast construction speed, and is easy to control construction quality.

[0074] Exemplarily, the connection assembly 10 also includes: a plurality of second connection members 4, the second connection members 4 are built into the composite wall 3, and the number of the second connection members 4 is the same as the number of the first connection members 6; wherein the fixing member passes through the first connection member 6 and the second connection member 4, and is used to fix the first connection member 6 and the second connection member 4 together.

[0075] Specifically, refer to Figures 4 to 7 As shown, the second connector 4 can be constructed in a T-shaped structure. The second connector 4 is plugged into the third through hole 34 and has an interference fit with the insulation layer 32 to achieve a fixed connection between the second connector 4 and the insulation layer 32. The second connector 4 has a limiting function to prevent the first connector 6 from sliding during installation, resulting in inaccurate positioning. A second bolt hole 42 is provided on the inner wall of the second connector 4 near one end. One end of the high-strength bolt 7 passes through the two first bolt holes 63, the third through hole 34, and the second bolt hole 42, and the high-strength bolt 7 is threadedly connected to the two first bolt holes 63 and the second bolt hole 42 to achieve fixed installation of the first connector 6 and the second connector 4, thereby achieving fixed installation of the first connector 6 and the insulation layer 32. After the first connector 6 is installed with the second connector 4 and the insulation layer 32, high-strength nuts 71 are threadedly connected to both ends of the high-strength bolt 7 to limit the ends of the high-strength bolt 7 and strengthen the connection between the high-strength bolt 7 and the first connector 6. By embedding two limit plates 62, high-strength bolts 7, second connectors 4, and two high-strength nuts 71 within the composite wall 3, and integrating the two limit plates 62, high-strength bolts 7, second connectors 4, and two high-strength nuts 71 with the composite wall 3, this design not only reliably connects the first connector 6 and the second connector 4 to the composite wall 3, but also increases the shear and bending resistance of the joints, keeps the wall surface neat, and enables a tight connection between the composite wall 3 and the steel structure, reducing gaps. This eliminates many post-processing steps, reduces construction time, and improves construction efficiency. The composite wall 3, first connector 6, second connector 4, high-strength bolts 7, and high-strength nuts 71 can all be directly processed and assembled in the factory. Therefore, during on-site construction, workers only need to dock and install them. This connection method is highly practical, fast in construction speed, and easy to control construction quality.

[0076] Exemplarily, the connection assembly 10 also includes: a plurality of third connection members 5, connected to the second connection member 4, and the number of the third connection members 5 is the same as that of the second connection members 4; wherein the fixing member passes through the first connection member 6, the second connection member 4 and the third connection member 5, and is used to fix the first connection member 6, the second connection member 4 and the third connection member 5 in connection.

[0077] Specifically, see 4 to Figure 10As shown, a fourth bolt hole 41 is provided on the inner wall of the second connecting member 4 near the other end. And the diameter of the fourth bolt hole 41 is larger than the diameter of the second bolt hole 42. Among them, the structure of the third connecting member 5 can also be a T-shaped structure. A second threaded section 51 is provided at one end of the third connecting member 5. The fourth bolt hole 41 is threadedly connected to the second threaded section 51 to achieve a fixed connection between the second connecting member 4 and the third connecting member 5. A third bolt hole 52 is provided on the inner wall of the third connecting member 5. When installing the first connecting member 6, first plug the second connecting member 4, the insulation layer 32 and the third connecting member 5 into the limiting groove 65. At the same time, align the two first bolt holes 63, the second bolt hole 42, and the third bolt hole 52, then pass one end of the high-strength bolt 7 through the two first bolt holes 63, the second bolt hole 42, and the third bolt hole 52, and thread the high-strength bolt 7 with the two first bolt holes 63, the second bolt hole 42, and the third bolt hole 52, respectively, to achieve a fixed connection between the first connecting member 6, the second connecting member 4, and the third connecting member 5. After the above connection is completed, high-strength nuts 71 are threadedly connected to both ends of the high-strength bolt 7 to limit the two ends of the high-strength bolt 7 and strengthen the tightness of the connection between the first connecting member 6, the second connecting member 4, and the third connecting member 5. The third connecting member 5 also has a limiting function to prevent the first connecting member 6 from sliding during installation, resulting in inaccurate positioning. By embedding two limit plates 62, high-strength bolts 7, second connectors 4, third connectors 5, and two high-strength nuts 71 within the composite wall 3 and integrating the two limit plates 62, high-strength bolts 7, second connectors 4, third connectors 5, and two high-strength nuts 71 with the composite wall 3, this design not only reliably connects the first connector 6, second connector 4, and third connector 5 to the composite wall 3, but also increases the shear and bending resistance of the joints, leaving the wall surface neat and tidy. It also allows for a tight connection between the composite wall 3 and the steel structure, reducing gaps, thereby eliminating many post-processing steps, reducing construction time, and improving construction efficiency. The composite wall 3, first connector 6, second connector 4, third connector 5, high-strength bolts 7, and high-strength nuts 71 can all be directly processed and assembled in the factory. Therefore, during on-site construction, workers only need to dock and install them. This connection method is highly practical, fast to construct, and easy to control construction quality.

[0078] In summary, the above embodiments provide detailed descriptions of different configurations of connection nodes between prefabricated composite walls and steel structures. Of course, the above descriptions are only descriptions of preferred embodiments of the present invention and do not limit the scope of the present invention. The present invention includes but is not limited to the configurations listed in the above embodiments. Those skilled in the art can draw inferences based on the contents of the above embodiments. Any changes and modifications made by those skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A connection node between a prefabricated composite wall and a steel structure, characterized in that: include: composite walls; a plurality of connection assemblies spaced along an edge of the composite wall, wherein each of the connection assemblies is partially embedded in the composite wall and partially extends outside the composite wall; a steel structure connected to a portion of each connection assembly extending outside the composite wall, the steel structure comprising two steel beams and two steel columns, the steel beams being provided with at least one first through hole, and the steel columns being provided with at least one second through hole; The composite wall and the portion of the connecting assembly built into the composite wall are integrated; The composite wall comprises: Insulation layer; An outer wall panel is arranged on one side of the insulation layer; An inner wall panel is arranged on the other side of the insulation layer; The inner wall panels, outer wall panels, insulation layer, and the portion of the connection assembly built into the composite wall are integrally arranged by casting; The connection component includes: a plurality of first connecting members arranged at intervals along an edge of the composite wall, each of the first connecting members being partially built into the composite wall and partially extending outside the composite wall; a fixing member, passing through the first connecting member and the thermal insulation layer, and used for fixing the first connecting member to the thermal insulation layer, wherein the number of the fixing members is the same as the number of the first connecting members; a limiting portion connected to a portion of the first connecting member extending outside the composite wall; The first connecting member includes a fixing plate, two limiting plates are symmetrically provided on the top of the fixing plate, two first threaded sections are symmetrically provided on the bottom of the fixing plate, the two limiting plates are respectively provided with first bolt holes, and the two limiting plates form limiting grooves on the top of the fixing plate, the fixing member is a high-strength bolt, and the thermal insulation layer is provided with a third through hole. When installing the first connecting member and the composite wall, first, the thermal insulation layer is plugged into the limiting groove, secondly, the positions of the two first bolt holes and the third through hole are aligned, and finally, one end of the high-strength bolt is passed through the two first bolt holes and the third through hole, and the high-strength bolt is threadedly connected to the two first bolt holes to achieve the fixation of the first connecting member and the thermal insulation layer. After the installation of the first connecting piece and the insulation layer is completed, the two ends of the high-strength bolt are respectively threadedly connected to the high-strength nuts, and the two ends of the high-strength bolt are limited to strengthen the connection between the high-strength bolt and the first connecting piece. The bottom of the fixed plate is aligned with the connection surface of the steel beam or steel column to ensure the tightness of the connection between the bottom of the composite wall and the steel structure. The limiting part is a limiting nut. The two limiting plates and the high-strength bolt included in the first connecting piece are built into the composite wall. The two first threaded sections included in the first connecting piece pass through the first through hole or the second through hole, and the first threaded section is threadedly connected to the limiting nut to achieve a fixed connection between the first connecting piece and the steel beam or steel column.

2. The connection node between a prefabricated composite wall and a steel structure according to claim 1, characterized in that: The connection component further includes: a plurality of second connecting members, wherein the second connecting members are built into the composite wall, and the number of the second connecting members is the same as the number of the first connecting members; Wherein, the fixing member passes through the first connecting member and the second connecting member, and is used to fix the first connecting member and the second connecting member together; The second connecting member is constructed as a T-shaped structure. The second connecting member is plugged into the third through hole and has an interference fit with the thermal insulation layer to achieve a fixed connection between the second connecting member and the thermal insulation layer. A second bolt hole is provided near one end of the inner wall of the second connecting member. One end of the high-strength bolt passes through the two first bolt holes, the third through hole and the second bolt hole, and the high-strength bolt is threadedly connected to the two first bolt holes and the second bolt hole to achieve fixed installation of the first connecting member and the second connecting member, thereby achieving fixed installation of the first connecting member and the thermal insulation layer.

3. The connection node between a prefabricated composite wall and a steel structure according to claim 2, characterized in that: The connection component further includes: a plurality of third connecting members connected to the second connecting members, wherein the number of the third connecting members is the same as the number of the second connecting members; Wherein, the fixing member passes through the first connecting member, the second connecting member and the third connecting member, and is used to fix the first connecting member, the second connecting member and the third connecting member together; A fourth bolt hole is provided on the inner wall of the second connecting member near the other end, and the diameter of the fourth bolt hole is larger than the diameter of the second bolt hole, wherein the third connecting member is constructed as a T-shaped structure, and a second threaded section is provided at one end of the third connecting member, and the fourth bolt hole is threadedly connected to the second threaded section to achieve a fixed connection between the second connecting member and the third connecting member, and a third bolt hole is provided on the inner wall of the third connecting member. When installing the first connecting member, first, the second connecting member, the insulation layer and the third connecting member are plugged into the limiting groove, and the two first bolt holes, the second bolt hole and the third bolt hole are aligned, and then one end of the high-strength bolt is passed through the two first bolt holes, the second bolt hole and the third bolt hole, and the high-strength bolt is threadedly connected to the two first bolt holes, the second bolt hole and the third bolt hole respectively to achieve a fixed connection between the first connecting member, the second connecting member and the third connecting member.

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