Steel truss and assembly

Abstract

The utility model discloses a profiled steel net rack and assembly body belongs to the building technical field, include: the net belt of interval arrangement of many and the net belt one side or both sides set up many profiled steel, the net belt is by two longitudinal reinforcement and many vertical distribution's web welding connection constitutes, the profiled steel is the strip steel presss from both sides and forms, the profiled steel with the net belt vertical distribution welding or bolted connection constitutes the profiled steel net rack. The utility model discloses a profiled steel support and multiple net belt screw joint installation, has improved the strength of net rack to improved the assembly efficiency, and the opening hook connecting rib bends inwards and deforms, prevents the wallboard installation when connecting rib section inserts the inside of upper layer wallboard steel reinforcement net rack and appears the jamming phenomenon, the utility model discloses improve the installation efficiency of prefabricated component assembly body.

Description

Technical Field

[0001] This utility model belongs to the field of building technology, and in particular relates to steel space frame and assembly. Background Technology

[0002] Steel truss floor slabs and steel truss composite slabs are widely used in the construction industry. Traditional steel truss floor slabs are welded together from two parts: the bottom formwork and the steel truss. Pouring concrete onto the composite steel truss floor slab creates a steel truss composite slab. Among them, the steel truss formwork is a commonly used building component. During the construction phase, it can be used as lateral support for steel beams. During the service phase, the steel truss formwork and concrete work together to bear the service load. Using steel truss formwork as a concrete floor slab can save the process and cost of formwork erection and dismantling, and is suitable for multi-story and high-rise steel structure buildings.

[0003] In existing technologies, the steel truss of composite steel truss floor slabs is composed of three types of steel bars: transverse bars, longitudinal bars, and web bars. Connecting the steel truss to the bottom formwork plate can easily lead to safety hazards. Furthermore, the transverse bars, when tied to the mesh formed by the longitudinal and web bars, suffer from low efficiency, high cost, and poor connection quality. Additionally, the transverse bars, which play a connecting role, are relatively weak.

[0004] The existing precast double-panel composite wall panel post-installation reinforcement anchoring method involves installing the first precast double-panel composite panel, inserting connecting reinforcement bars into the gap between the panels and tying them in place, then installing the second double-panel composite panel above it, inserting the connecting reinforcement bars into the gap of the upper panel, and finally pouring concrete into the double-panel composite panel to connect the two panels. However, this post-installation reinforcement anchoring method suffers from several drawbacks: it requires secondary tying of the connecting reinforcement bars, resulting in low efficiency, high cost, and unreasonable distribution of reinforcement bars under stress (the connecting reinforcement bars are located close to the center, and due to the limitations of the composite panel manufacturing process, they cannot be placed at the far end of the wall panel center, nor can they be coaxial with the vertical reinforcement bars, affecting the structural stress).

[0005] In other words, existing precast wall panels have the following problems during assembly: jamming caused by deformation and displacement of the reinforcing bars in the precast frame, resulting in adjacent components being unable to be installed; the axial position of precast components being affected by the jamming of the reinforcing bars, causing axial displacement that cannot be adjusted; joint problems, with joints easily forming at the bottom of vertical components, leading to rainwater leakage; grout leakage, as sleeve grouting is a concealed operation, making it impossible to visually determine whether the grouting is complete; thinning of the protective layer, with increased sleeve diameter and deformation causing the protective layer to become too thin and fall off, affecting durability; dense grouting pipes damaging the integrity of the concrete structure; and the need for specialized hoisting parts, connecting accessories, reinforcing bar sleeves, grouting materials, connecting reinforcing bars, external protective panels, and secondary pouring. Utility Model Content

[0006] In view of this, the present invention provides a steel space frame and an assembly. The steel space frame is made by connecting steel supports with multiple mesh belts, and then connecting them with perforated mesh sheets, mesh sheets, templates or insulation boards to form an assembly, which improves efficiency, shortens the construction period and improves economy.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A type of steel space frame includes: multiple spaced mesh strips and multiple steel sections arranged on one or both sides of the mesh strips. The mesh strips are formed by welding two longitudinal steel bars and multiple vertically distributed web bars. The steel sections are formed by pressing strip steel. The steel sections are welded or bolted to the mesh strips in a vertical distribution to form the steel space frame.

[0008] Furthermore, the ends of the longitudinal reinforcing bars are provided with connecting bars, and the ends of the connecting bars are provided with hooks. The hooks are lapped or welded closed, or one end is closed and the other end is open. The opening is formed by the end of the connecting bar being bent inward and deformed, so that when the upper steel frame is installed, the opening connecting bars of the lower steel frame can be inserted into the upper steel frame. The bending deformation of the opening can prevent jamming.

[0009] Furthermore, the steel section is shaped like a zigzag or a C-shape and is provided with screw holes for connecting with the web reinforcement, and the side of the steel section is provided with a grout inlet hole for allowing concrete slurry to enter the groove. The end of the web reinforcement extends out of the longitudinal reinforcement and passes through the screw hole, or the end of the web reinforcement extends into the groove of the steel section and is welded to the steel section.

[0010] Furthermore, the end of the web reinforcement is provided with threads, which pass through the threaded hole and are connected to the mesh belt in the groove of the steel section by a nut to form a steel mesh frame.

[0011] Furthermore, W-shaped diagonal bracing reinforcements are provided between the longitudinal steel bars.

[0012] A steel mesh formwork type steel space frame includes any one of the steel space frames described above, wherein the outer side of the steel space frame is provided with a dense mesh sheet, and the dense holes on the dense mesh sheet can prevent concrete aggregate from flowing out during concrete pouring.

[0013] A cast-in-place, non-removable model steel space frame includes a steel space frame as described in any of the above claims. The outer side of the steel space frame is provided with a mesh panel, and a cast-in-place template is provided at the connection between the mesh panel and the steel section to form a cast-in-place, non-removable model steel space frame.

[0014] A prefabricated, non-removable model steel space frame includes a steel space frame as described in any of the above claims. A prefabricated template is provided on the outer side of the steel space frame, and the prefabricated template is connected to the steel section with self-tapping screws to form a prefabricated, non-removable model steel space frame.

[0015] A type of insulated board non-removable molded steel space frame, characterized in that it includes the above-mentioned cast-in-place non-removable molded steel space frame, wherein an insulation board is provided on one side of the steel profile, the insulation board is connected to the steel profile space frame using insulation nails, and a cast-in-place mold is provided on the other side of the steel profile to form the insulated board non-removable molded steel space frame; or a type of prefabricated non-removable molded steel space frame, wherein an insulation board is provided on one side of the steel profile, the insulation board is connected to the steel profile space frame using insulation nails, and a prefabricated mold is provided on the other side of the steel profile to form the insulated board non-removable molded steel space frame.

[0016] The beneficial effects of this utility model are as follows: the steel profiles are connected in series at the top and bottom of multiple mesh belts to form a space frame. The steel profiles improve the overall structural strength of the space frame. Moreover, the installation method of screwing or welding improves the installation efficiency, saves costs, and improves work efficiency compared to binding installation. The reinforcing ribs can improve the overall structural strength of the space frame. This utility model utilizes the steel profile space frame in combination with mesh sheets, templates, or insulation boards in different forms, resulting in diverse structural forms and enriching the application scenarios.

[0017] A non-removable model steel space frame wall panel assembly is disclosed. The wall panel assembly utilizes any one of the following steel space frame types: a steel mesh template type, a cast-in-place non-removable model steel space frame, a prefabricated non-removable model steel space frame, and an insulation board non-removable model steel space frame. When any of the aforementioned steel space frames is placed vertically, it serves as a wall panel. The upper and lower wall panels are installed vertically. The connecting ribs on the upper part of the lower wall panel have open hooks at their ends. The width of the open hooks is equal to or less than the inner diameter of the steel sections on both sides of the steel space frame in the upper wall panel, or equal to or less than the width of the mesh strip in the steel space frame of the upper wall panel. The open hooks are inserted into the steel space frame of the upper wall panel. Concrete is then poured into the cavity of the upper wall panel, connecting the connecting ribs of the lower wall panel or foundation to the upper wall panel to form a reinforced concrete integral structure, thus constituting the assembly.

[0018] A non-removable model steel space frame wall panel and floor slab assembly is disclosed. The wall panel and floor slab assembly utilizes any one of the following steel space frame types: a steel mesh template type, a cast-in-place non-removable model steel space frame, a prefabricated non-removable model steel space frame, and an insulated board non-removable model steel space frame. When any of the aforementioned steel space frames is placed vertically, it serves as a wall panel; when placed horizontally, it serves as a floor slab. The floor slab is overlapped and installed on the wall panel. The connecting ribs at the edge support portion of the steel space frame of the floor slab overlap the top of the wall panel, and the length of the connecting ribs exceeds [a certain value]. The center line of the wall panel is close to the outer side of the wall panel. The connecting bars of the steel grid in the middle of the floor slab on both sides of the middle support are connected by overlapping. The upper connecting bar of the steel grid in the wall panel extends out of the height of the floor slab and meets the overlap length requirements of the connecting bars in the upper and lower wall panels. After the floor slab is installed, concrete is poured into the cavity of the wall panel. After the wall panel is poured, concrete is poured on the surface of the floor slab, so that the wall panel and the floor slab form a reinforced concrete integral structure, forming the wall panel and floor slab assembly. The connecting ribs at the upper part of the lower wall panel have open hooks at their ends. The width of the open hooks is equal to or less than the inner diameter of the steel profiles on both sides of the steel space frame in the upper wall panel, or equal to or less than the width of the mesh strip of the steel space frame in the upper wall panel. The open hooks are inserted into the steel space frame of the upper wall panel. Then, concrete is poured into the cavity of the upper wall panel. The concrete connects the connecting ribs of the lower wall panel or foundation to the upper wall panel to form a reinforced concrete integral structure, constituting an assembly.

[0019] The beneficial effects of this utility model are as follows: it solves the problem of inconvenient hoisting due to its heavy weight, with a weight equivalent to one-fifth of that of precast solid concrete wall panels; the space frame is rigid and lightweight, effectively solving the problem of requiring special cranes or tower cranes for hoisting. It is low-cost and economical; it reduces on-site operation procedures and workload, lowers material and labor costs, improves efficiency, shortens the construction period, and enhances economic benefits. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of a steel space frame structure where the steel profiles are connected to the mesh belt via nuts.

[0022] Figure 2 This is a schematic diagram of a steel space frame structure where steel sections are connected to a mesh belt by welding.

[0023] Figure 3 This is a structural diagram of a steel mesh template type steel space frame.

[0024] Figure 4 This is a structural schematic diagram of a cast-in-place, non-removable steel space frame.

[0025] Figure 5 This is a structural schematic diagram of a prefabricated, non-disassembly model steel space frame.

[0026] Figure 6 This is a schematic diagram of the structure of a non-removable steel space frame for an insulation board model, as shown in Example 5.

[0027] Figure 7 This is a schematic diagram of the structure of a non-removable steel space frame for an insulation board model, as shown in Example 6.

[0028] Figure 8 This is a construction diagram of an assembly of prefabricated components.

[0029] In the figure: 100-Steel space frame, 10-Mesh belt, 11-Web reinforcement, 111-Thread, 12-Longitudinal reinforcement, 121-Open hook, 122-Connecting reinforcement, 13-W-shaped diagonal bracing reinforcement, 20-Steel section, 21-Screw hole, 30-Nut, 40-Dense mesh, 50-Mesh, 60-Cast-formed template, 70-Precast template, 80-Insulation board, 200-Steel mesh template steel space frame, 300-Cast-formed non-removable model steel space frame, 400-Precast non-removable model steel space frame, 500-Insulation board non-removable model steel space frame I, 600-Insulation board non-removable model steel space frame II, 700-Wall panel, 800-Floor slab. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1

[0032] See attached document Figure 1-2 As shown, this utility model provides a steel space frame 100, including: multiple spaced mesh belts 10 and multiple steel sections 20 arranged on one or both sides of the mesh belts 10. The mesh belts 10 are formed by welding two longitudinal steel bars 12 and multiple vertically distributed web bars 11. The steel sections 20 are formed by pressing strip steel. The steel sections 20 are vertically distributed and welded or bolted to the mesh belts 10 to form the steel space frame 100.

[0033] Preferably, the ends of the longitudinal reinforcing bars 12 are provided with connecting bars 122, and the ends of the connecting bars 122 are provided with hooks. The hooks are lapped or welded closed, or one end is closed and the other end is open. The opening is formed by the end of the connecting bar 122 being bent inward and deformed, so that when the upper steel frame 100 is installed, the opening of the connecting bar 122 of the lower steel frame 100 can be inserted into the upper steel frame 100. The bending deformation of the opening can prevent jamming.

[0034] Preferably, the steel section 20 is Z-shaped or C-shaped and has bolt holes 21 for connecting with the web reinforcement 11, and the side of the steel section 20 has inlet holes for allowing concrete grout to enter the trench; the ends of the web reinforcement 11 extend out of the longitudinal reinforcing bars 12 and pass through the bolt holes 21, or as shown in the image. Figure 2 The end of the web rib 11 extends into the groove of the steel section 20 and is welded to the steel section 20.

[0035] Preferably, the end of the web rib 11 is provided with a thread 111, and the thread 111 passes through the threaded hole 21, such as... Figure 1 The steel frame 100 is formed by screwing the steel section 20 with the mesh belt 10 through the nut 30 in the groove.

[0036] Preferably, W-shaped diagonal bracing reinforcements 13 are provided between the longitudinal steel bars 12.

[0037] Example 2

[0038] A type of steel mesh template steel space frame 200, such as Figure 3 The steel space frame 100, as described in Example 1, is provided with a perforated mesh 40 on its outer side. The perforations on the perforated mesh 40 can prevent concrete aggregate from flowing out during concrete pouring.

[0039] Example 3

[0040] A cast-in-place, non-removable steel space frame, such as... Figure 4 The steel space frame 100 in Embodiment 1 is provided with a mesh 50 on the outside of the steel space frame 100. A cast-in-place template 60 is provided at the connection between the mesh 50 and the steel 20, thus forming a cast-in-place, non-removable model steel space frame 100.

[0041] Example 4

[0042] A prefabricated, non-dismantling model steel space frame 400, such as Figure 5 The steel space frame 100 in Embodiment 1 is provided on the outer side of the steel space frame 100. The prefabricated template 70 is connected to the steel 20 with self-tapping screws to form a prefabricated non-disassembly model steel space frame 400.

[0043] Example 5

[0044] A type of insulated board non-removable model steel space frame, such as Figure 6 The present invention includes a castable, non-removable model steel space frame 300 of embodiment 3. An insulation board 80 is provided on one side of the steel section 20. The insulation board 80 is connected to the steel section space frame 100 by insulation nails. A castable template 60 is provided on the other side of the steel section 20 to form an insulation board non-removable model steel space frame 500.

[0045] Example 6

[0046] A type of insulated board non-removable model steel space frame, such as Figure 7 The present invention includes a prefabricated non-removable model steel space frame 400 of embodiment 4. An insulation board 80 is provided on one side of the steel section 20. The insulation board 80 is connected to the steel section space frame 100 by insulation nails. A prefabricated template 70 is provided on the other side of the steel section 20 to form a second non-removable model steel space frame 600 with insulation board.

[0047] Example 7

[0048] A non-disassembly model steel space frame wall panel assembly is provided. The wall panel assembly adopts any one of the steel space frames 100 in Examples 2-6. When any one of the steel space frames 100 in Examples 2-6 is placed vertically, it is used as a wall panel 700. The upper wall panel 700 and the lower wall panel 700 are installed vertically. The connecting ribs 122 provided on the upper part of the lower wall panel 700 have open hooks 121 at their ends. The width of the open hooks 121 is equal to or less than the inner diameter of the steel ribs 20 on both sides of the steel space frame 100 in the upper wall panel 700, or equal to or less than the width of the mesh belt 10 in the steel space frame 100 in the upper wall panel 700. The open hooks 121 are inserted into the steel space frame 100 of the upper wall panel 700. Then, concrete is poured into the cavity of the upper wall panel 700. The concrete connects the connecting ribs 122 of the lower wall panel 700 or the foundation to the upper wall panel 700 to form a reinforced concrete integral structure, thus constituting the assembly.

[0049] Example 8

[0050] A non-disassembly-required steel space frame wall panel and floor slab assembly is provided. The wall panel and floor slab assembly utilizes any one of the steel space frames described in Examples 2-6. When vertically placed, the steel space frame serves as wall panel 700; when horizontally placed, it serves as floor slab 800. Floor slab 800 is overlapped and installed on wall panel 700. The connecting ribs 122 at the edge support of the steel space frame 100 of floor slab 800 overlap above wall panel 700. The length of the connecting ribs 122 exceeds the centerline of wall panel 700 and is close to the outer side of wall panel 700. Floor slabs 800 on both sides of the intermediate support... The connecting ribs 122 of the medium steel space frame 100 overlap and connect with each other. The upper connecting ribs 122 of the medium steel space frame 100 of the wall panel 700 extend beyond the height of the floor slab 800 and meet the overlap length requirements of the connecting ribs 122 in the upper and lower wall panels 700. After the floor slab 800 is installed, concrete is poured inside the cavity of the wall panel 700. After the wall panel 700 is poured, concrete is poured on the surface of the floor slab 800, so that the wall panel 700 and the floor slab 800 form a reinforced concrete integral structure, forming the wall panel 700 and floor slab 800 assembly. The connecting ribs 122 provided on the upper part of the lower wall panel 700 have open hooks 121 at their ends. The width of the open hooks 121 is equal to or less than the inner diameter of the steel ribs 20 on both sides of the steel ribs 100 in the upper wall panel 700, or equal to or less than the width of the mesh belt 10 in the steel ribs 100 in the upper wall panel 700. The open hooks 121 are inserted into the steel ribs 100 of the upper wall panel 700. Then, concrete is poured into the cavity of the upper wall panel 700. The concrete connects the connecting ribs 122 of the lower wall panel 700 or the foundation to the upper wall panel 700 to form a reinforced concrete integrated structure, constituting an assembly.

[0051] Example 9

[0052] A construction method for a prefabricated component assembly, wherein the assembly is a non-removable model steel space frame wall panel assembly as described in Example 7 and a non-removable model steel space frame wall panel and floor slab assembly as described in Example 8, includes the following steps: S1. Installation of wall panel 700 Multiple wall panels 700 are spaced apart, with the bottom of the wall panels 700 fixed to the embedded parts on the ground, and the wall panels 700 are supported by diagonal support rods. S2. Installation of 800mm floor slab The floor slab 800 is horizontally hoisted onto the top of the wall panel 700, with the side of the floor slab 800 containing the template facing down. The two ends of the template in the floor slab 800 are respectively overlapped onto the top of the template in the wall panel 700. S3. Pouring concrete Concrete is poured between the two formwork panels in wall panel 700 and on top of floor slab 800; S4. Increase the height of the assembly After the concrete inside the lower wall panel 700 and above the floor slab 800 has solidified, continue to install the wall panel 700 and floor slab 800 as in steps S1-S3 to increase the height of the assembly.

[0053] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0054] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A type of steel space frame, characterized in that, include: Multiple spaced mesh belts and multiple steel sections arranged on one or both sides of the mesh belts, wherein the mesh belts are formed by welding two longitudinal steel bars and multiple vertically distributed web bars, and the steel sections are formed by pressing strip steel. The steel sections are welded or bolted to the mesh belts in a vertical distribution to form a steel space frame.

2. The steel space frame according to claim 1, characterized in that, The ends of the longitudinal reinforcing bars are provided with connecting bars, and the ends of the connecting bars are provided with hooks. The hooks are lapped or welded closed, or one end is closed and the other end is open. The opening is formed by the end of the connecting bar being bent inward and deformed, so that when the upper steel grid is installed, the opening connecting bars of the lower steel grid can be inserted into the upper steel grid. The bending deformation of the opening can prevent jamming.

3. A steel space frame according to claim 1 or 2, characterized in that, The steel section is shaped like a zigzag or a C and has screw holes for connecting with the web reinforcement. The side of the steel section has a grout inlet hole for allowing concrete slurry to enter the groove. The end of the web reinforcement extends out of the longitudinal reinforcement and passes through the screw hole, or the end of the web reinforcement extends into the groove of the steel section and is welded to the steel section.

4. A steel space frame according to claim 3, characterized in that, The ends of the web reinforcement are provided with threads, which pass through the threaded holes and are connected to the mesh belt in the groove of the steel section by nuts to form a steel mesh frame.

5. A steel space frame according to claim 4, characterized in that, W-shaped diagonal bracing reinforcements are provided between the longitudinal steel bars.

6. A steel mesh template type steel space frame, characterized in that, The invention includes a steel space frame as described in any one of claims 1-5, wherein the outer side of the steel space frame is provided with a dense mesh, and the dense mesh on the dense mesh can prevent concrete aggregate from flowing out during concrete pouring.

7. A cast-in-place, non-removable model steel space frame, characterized in that, The invention includes a steel space frame as described in any one of claims 1-5, wherein a mesh is provided on the outer side of the steel space frame, and a cast-in-place template is provided at the connection between the mesh and the steel, thereby forming a cast-in-place, non-removable model steel space frame.

8. A prefabricated, non-dismantling model steel space frame, characterized in that, The invention includes a steel space frame as described in any one of claims 1-5, wherein a prefabricated template is provided on the outer side of the steel space frame, and the prefabricated template is connected to the steel section with self-tapping screws to form a prefabricated, non-removable model steel space frame.

9. A non-removable steel space frame for insulation boards, characterized in that, The invention comprises a cast-in-place, non-removable model steel space frame as described in claim 7, wherein an insulation board is provided on one side of the steel profile, the insulation board is connected to the steel profile space frame using insulation nails, and a cast-in-place template is provided on the other side of the steel profile to form an insulation board non-removable model steel space frame; or a prefabricated, non-removable model steel space frame as described in claim 8, wherein an insulation board is provided on one side of the steel profile, the insulation board is connected to the steel profile space frame using insulation nails, and a prefabricated template is provided on the other side of the steel profile to form an insulation board non-removable model steel space frame.

10. A non-disassembly-required steel space frame wall panel assembly, characterized in that, The wall panel assembly adopts any one of the steel space frames according to claims 6-9. When the steel space frame according to claims 6-9 is placed vertically, it is used as a wall panel. The upper wall panel and the lower wall panel are installed vertically. The connecting ribs provided at the upper part of the lower wall panel have open hooks at their ends. The width of the open hooks is equal to or less than the inner diameter of the steel sections on both sides of the steel space frame in the upper wall panel, or equal to or less than the width of the mesh strip of the steel space frame in the upper wall panel. The open hooks are inserted into the steel space frame of the upper wall panel. Then, concrete is poured into the cavity of the upper wall panel. The concrete connects the connecting ribs of the lower wall panel or foundation to the upper wall panel to form a reinforced concrete integral structure, constituting the assembly.

11. A non-disassembly-required steel space frame wall panel and floor slab assembly, characterized in that, The wall panel and floor slab assembly adopts any one of the steel space frames of claims 6-9. When the steel space frame of claims 6-9 is placed vertically, it is used as a wall panel; when placed horizontally, it is used as a floor slab. The floor slab is overlapped and installed on the wall panel. The connecting bars at the edge support of the steel space frame of the floor slab overlap the top of the wall panel. The length of the connecting bars exceeds the center line of the wall panel and is close to the outer side of the wall panel. The connecting bars of the steel space frame in the floor slab on both sides of the middle support overlap and connect with each other. The upper connecting bars of the steel space frame in the wall panel extend beyond the height of the floor slab and meet the overlap length requirements of the connecting bars in the upper and lower wall panels. After the floor slab is installed, concrete is poured inside the cavity of the wall panel. After the wall panel is poured, concrete is poured on the surface of the floor slab, so that the wall panel and the floor slab form a reinforced concrete integral structure, forming the wall panel and floor slab assembly. The connecting ribs at the upper part of the lower wall panel have open hooks at their ends. The width of the open hooks is equal to or less than the inner diameter of the steel profiles on both sides of the steel space frame in the upper wall panel, or equal to or less than the width of the mesh strip of the steel space frame in the upper wall panel. The open hooks are inserted into the steel space frame of the upper wall panel. Then, concrete is poured into the cavity of the upper wall panel. The concrete connects the connecting ribs of the lower wall panel or foundation to the upper wall panel to form a reinforced concrete integral structure, constituting an assembly.

Images