Modularized assembly type profile steel framework-concrete sandwich composite wallboard and assembly method thereof

Abstract

The invention provides a modular assembly type profile steel framework-concrete sandwich composite wallboard and an assembly method thereof. Comprising a section steel framework-concrete sandwich composite wallboard-upper wallboard, a section steel framework-concrete sandwich composite wallboard-middle wallboard and a section steel framework-concrete sandwich composite wallboard-lower wallboard which are assembled and combined into the composite wallboard; each wall comprises an inner wall, an outer wall, an interlayer type steel framework and a polyurethane foaming plate; the adjacent sides of the wallboards are provided with tenon mortise structures between the wallboards and connectors between the wallboards so as to achieve connection between the wallboards. The periphery of the composite wallboard is provided with matched beam / column tenon mortise structures and beam / column connectors corresponding to adjacent beam and column structures, so that connection between the wallboard and beams / columns is achieved. The method is excellent in adaptability, and can flexibly adapt to different building floor heights and span requirements; the field assembly efficiency is high; the consistency and the stability of the product quality can be ensured by factory-like manufacturing; and the force transmission path is clear, so that the structural strength can be fully ensured.

Description

Technical Field

[0001] This invention relates to the field of prefabricated building technology, specifically to a modular prefabricated steel frame-concrete sandwich composite wall panel and its assembly method. Background Technology

[0002] In prefabricated buildings, steel-concrete composite (SRC) structures, combining the advantages of steel and concrete, are widely used in high-rise and large-span buildings due to their high load-bearing capacity, good seismic performance, and strong durability. As the core load-bearing component of this structural system, the construction efficiency and connection reliability of SRC beams directly determine the overall building quality and construction period.

[0003] Currently, modular prefabricated buildings often use beam and column frames, but the use of wall panels is relatively rare. Common building forms still rely on prefabricated frames and on-site casting or masonry for wall construction, with few designs that use modular assembly to form a system.

[0004] For wall panels, the main challenges in using the prefabricated construction concept are coordination with the beam and column frame system, assembly efficiency and ease of assembly, and assembly methods.

[0005] In order to solve the above problems, people have been seeking an ideal technological solution. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a modular prefabricated steel frame-concrete sandwich composite wall panel and its assembly method that is adaptable to prefabricated structures, efficient, simple, and ensures structural strength.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is: a modular prefabricated steel frame-concrete sandwich composite wall panel, comprising a steel frame-concrete sandwich composite wall panel-upper wall panel assembled into a composite wall panel, at least one steel frame-concrete sandwich composite wall panel-middle wall panel, and a steel frame-concrete sandwich composite wall panel-lower wall panel. The steel frame-concrete sandwich composite wall panel-upper wall panel, the steel frame-concrete sandwich composite wall panel-middle wall panel, and the steel frame-concrete sandwich composite wall panel-lower wall panel all include an inner wall, an outer wall, a sandwich steel frame, and a polyurethane foam board filled around the sandwich. The adjacent sides of the steel frame-concrete sandwich composite wall panel-upper wall panel, steel frame-concrete sandwich composite wall panel-middle wall panel, and steel frame-concrete sandwich composite wall panel-lower wall panel are provided with matching tenon and mortise structures and wall panel connectors, so as to align through the tenon and mortise structures and lock through the connectors with single-sided self-locking high-strength bolts. The composite wall panel is equipped with matching beam / column tenon and mortise structures and beam / column connectors around its perimeter, corresponding to the adjacent beams and columns. The beam / column tenon and mortise structures are aligned with the beams and columns, and the beam / column connectors are locked in place with single-sided self-locking high-strength bolts.

[0008] This invention replaces traditional cast-in-place or masonry walls with prefabricated walls, and spatially divides a single wall into multiple wall panel structures that are assembled together. The lower wall panel connects to SRC beams and SRC columns, the middle wall panel connects to SRC columns, the lower wall panel, and the upper wall panel, and the upper wall panel connects to SRC beams and the middle wall panel. After assembly, the cavities formed by the SRC beams and SRC columns are filled to form a composite wall panel structure. The hoisting assembly method matches the SRC beam and SRC column assembly method, both using top-to-bottom alignment and locking with single-sided self-locking high-strength bolts, significantly improving assembly efficiency and quality. It is also compatible with prefabricated structures, and the connection structure is similar to the SRC system, ensuring structural strength.

[0009] Based on the above, the composite wall panel's steel frame-concrete sandwich composite wall panel-lower wall panel includes an inner lower wall panel, an outer lower wall panel, a polyurethane foam lower wall panel, horizontal lower wall panel steel, vertical lower wall panel steel, a lower wall panel-SRC column connector, a first lower wall panel joint, and a second lower wall panel joint. The horizontal and vertical steel sections of the lower wall panel are connected by vertical-horizontal steel section connectors to form a sandwich steel frame for the lower wall panel. The inner and outer walls of the lower wall panel are clamped and fixed to both sides of the sandwich steel frame for the lower wall panel by inner-outer wall panel connectors. The polyurethane foam board of the lower wall panel is installed in the gaps around the sandwich steel frame for the lower wall panel. The ends of the horizontal steel sections of each lower wall panel form lower wall panel-SRC column connectors. The upper ends of the vertical steel sections of each lower wall panel form lower wall panel first joints, and the lower ends form lower wall panel second joints. The polyurethane foam board of the lower wall panel is provided with notches at the positions corresponding to the lower wall panel-SRC column connectors, lower wall panel first joints, and lower wall panel second joints. The ends of the lower wall panel-SRC column connectors, lower wall panel first joints, and lower wall panel second joints are respectively provided with threaded holes for the lower wall panel-SRC column connectors, lower wall panel first joints, and lower wall panel second joints. The inner wall of the lower wall panel is provided with pre-drilled holes for concrete bolts at the positions corresponding to the lower wall panel-SRC column connectors, lower wall panel first joints, and lower wall panel second joints.

[0010] The composite wall panel's steel frame-concrete sandwich composite wall panel-lower wall panel structure is a composite structure based on the lower wall panel's steel frame, lower wall panel's polyurethane foam board, lower wall panel's outer wall, and lower wall panel's inner wall. It has strong structural performance. Connectors are set around the lower wall panel's steel frame to connect SRC columns, SRC beams, and the middle wall panel, achieving a high-strength, single-sided self-locking connection.

[0011] Based on the above, the inner wall of the lower wall panel is provided with tenons and mortises around its perimeter, and the outer wall of the lower wall panel is provided with tenons and mortises around its perimeter.

[0012] The tenons and mortises around the outer and inner walls of the lower wall panel enable precise alignment with beams, columns, and the middle wall panel, thus integrating it into the beam and column system.

[0013] Based on the above, the composite wall panel's steel frame-concrete sandwich composite wall panel-middle wall panel includes an inner wall panel, an outer wall panel, a polyurethane foam board, horizontal steel sections, vertical steel sections, a middle wall panel-SRC column connector, a first joint, and a second joint. The horizontal and vertical steel sections of the middle wall panel are connected by vertical-horizontal steel section connectors to form a sandwich steel frame for the middle wall panel. The inner and outer walls of the middle wall panel are clamped and fixed to both sides of the sandwich steel frame for the middle wall panel by inner-outer wall panel connectors. The polyurethane foam board of the middle wall panel is installed in the gaps around the sandwich steel frame for the middle wall panel. The ends of the horizontal steel sections of each of the central wall panels form central wall panel-SRC column connectors. The upper end of each of the vertical connectors forms a central wall panel first joint, and the lower end forms a central wall panel second joint. The polyurethane foam board of the central wall panel is provided with notches at the positions corresponding to the central wall panel-SRC column connector, the central wall panel first joint, and the central wall panel second joint. The ends of the central wall panel-SRC column connector, the central wall panel first joint, and the central wall panel second joint are respectively provided with central wall panel-SRC column connector threaded holes, central wall panel first joint threaded holes, and central wall panel second joint threaded holes. The inner wall of the central wall panel is provided with concrete bolt pre-reserved holes at the positions corresponding to the central wall panel-SRC column connector, the central wall panel first joint, and the central wall panel second joint.

[0014] The composite wall panel's steel frame-concrete sandwich composite wall panel-middle wall panel structure is a composite structure based on the middle wall panel's steel frame, middle wall panel's polyurethane foam board, middle wall panel's outer wall and inner wall panel, which has strong structural performance. The middle wall panel's steel frame is equipped with connectors around its perimeter to connect SRC columns, SRC beams, and upper and lower wall panels, achieving a high-strength, single-sided self-locking connection.

[0015] Based on the above, the inner wall of the middle wall panel is provided with tenons and mortises around its perimeter, and the outer wall of the middle wall panel is provided with tenons and mortises around its perimeter.

[0016] The tenons and mortises around the outer and inner walls of the middle wall panel enable precise alignment with beams, columns, upper and lower wall panels, thus integrating the wall panel with the beam and column system.

[0017] Based on the above, the composite wall panel's steel frame-concrete sandwich composite wall panel-upper wall panel includes an inner wall panel, an outer wall panel, a polyurethane foam board, horizontal steel sections, vertical steel sections, an upper wall panel-SRC column connector, a first joint, and a second joint. The horizontal and vertical steel sections of the upper wall panel are connected by vertical-horizontal steel section connectors to form a sandwich steel frame for the upper wall panel. The inner and outer walls of the upper wall panel are clamped and fixed to both sides of the sandwich steel frame for the upper wall panel by inner-outer wall panel connectors. The polyurethane foam board of the upper wall panel is installed in the gaps around the sandwich steel frame for the upper wall panel. The ends of the horizontal steel sections of each upper wall panel form upper wall panel-SRC column connectors. The upper ends of the vertical connectors of each upper wall panel form upper wall panel first joints, and the lower ends form upper wall panel second joints. The polyurethane foam board of the upper wall panel is provided with notches at the positions corresponding to the upper wall panel-SRC column connectors, the upper wall panel first joints, and the upper wall panel second joints. The ends of the upper wall panel-SRC column connectors, the upper wall panel first joints, and the upper wall panel second joints are respectively provided with upper wall panel-SRC column connector threaded holes, upper wall panel first joint threaded holes, and upper wall panel second joint threaded holes. The inner wall of the upper wall panel is provided with concrete bolt pre-reserved holes at the positions corresponding to the upper wall panel-SRC column connectors, the upper wall panel first joints, and the upper wall panel second joints.

[0018] The composite wall panel's steel frame-concrete sandwich composite wall panel-upper wall panel structure is a composite structure based on the upper wall panel's steel frame, upper wall panel's polyurethane foam board, upper wall panel's outer wall, and upper wall panel's inner wall. It has strong structural performance. Connectors are set around the upper wall panel's steel frame to connect SRC columns, SRC beams, and the middle wall panel, achieving a high-strength, single-sided self-locking connection.

[0019] Based on the above, the inner wall of the upper wall panel is provided with tenons around its perimeter, and the outer wall of the upper wall panel is provided with tenons around its perimeter.

[0020] The tenons and mortises around the outer and inner walls of the upper wall panel enable precise alignment with beams, columns, and the middle wall panel, thus integrating it into the beam and column system.

[0021] Based on the above, both the inner and outer wall panels include a pre-embedded steel reinforcement frame and concrete cast based on the steel reinforcement frame. The steel reinforcement frames in the inner and outer wall panels are connected by an inner-outer wall panel connector.

[0022] By using factory prefabrication, the reinforced concrete pouring of the inner and outer walls can be completed in the factory, avoiding the complexities of on-site construction, simplifying the construction process, and preventing material waste.

[0023] A method for assembling a modular prefabricated steel frame-concrete sandwich composite wall panel, using the aforementioned modular prefabricated steel frame-concrete sandwich composite wall panel, is implemented through the following steps: Factory preparation stage: Taking the steel frame-concrete sandwich composite wall panel-lower wall panel as an example, the factory manufactures the horizontal steel frame, the first joint, and the second joint of the lower wall panel, assembles them, welds the lower wall panel-SRC column connectors at corresponding positions, and opens threaded holes for the lower wall panel-SRC column connectors at corresponding positions. Then, the steel frame is tied to the polyester foam board of the lower wall panel. The steel frames in the inner and outer walls are connected by the inner-outer wall panel connectors. Then, the templates are made in sequence, and the inner and outer walls of the lower wall panel are poured. The concrete bolt holes, tenons, mortises, tenons, and mortises of the inner and outer walls of the lower wall panel are opened at corresponding positions. After the concrete curing is completed, the component steel frame-concrete sandwich composite wall panel-lower wall panel is completed. Similarly, the component steel frame-concrete sandwich composite wall panel-middle wall panel and steel frame-concrete sandwich composite wall panel-upper wall panel are completed in sequence. Assembly stages of various components at the construction site: The first-floor SRC beam is connected to the first-floor node core connection end using a single-sided self-locking high-strength bolt. The bottom of the second-layer SRC column is connected to the top L-shaped connection plate of the first-layer node core in sequence using single-sided self-locking high-strength bolts. The top of the second-layer SRC column is not connected for the time being. The steel frame-concrete sandwich composite wall panel-lower wall panel is hoisted from top to bottom, and the inner and outer tenons of the lower wall panel on both sides are vertically inserted into the designated positions of the SRC column. The second joint of the lower wall panel at the bottom of the steel frame-concrete sandwich composite wall panel-lower wall panel is connected to the SRC beam-wall panel connector pre-embedded in the first-floor SRC beam using single-sided self-locking high-strength bolts. The lower wall panel-SRC column connectors on both sides are then connected to the SRC column-wall panel connectors. This completes the assembly of the steel frame-concrete sandwich composite wall panel-lower wall panel. The steel frame-concrete sandwich composite wall panel-middle wall panel is hoisted and vertically inserted into the designated positions of the SRC column from top to bottom, with the inner and outer tenons of the middle wall panels on both sides aligned with those of the lower wall panel's inner and outer tenons. The second joint of the middle wall panel at the bottom of the steel frame-concrete sandwich composite wall panel-middle wall panel is then connected to the first joint of the lower wall panel using single-sided self-locking high-strength bolts. The middle wall panel-SRC column connectors on both sides are then connected to the SRC column-wall panel connectors, thus completing the assembly of the steel frame-concrete sandwich composite wall panel-middle wall panel. The assembly of the steel frame-concrete sandwich composite wall panel-upper wall panel is completed similarly. The bottom L-shaped connecting end plate of the second-layer node core of the structure is connected to the top of the SRC column of the first layer of the structure by means of single-sided self-locking high-strength bolts; The second-layer SRC beam is connected to the second-layer node core connection end using a single-sided self-locking high-strength bolt. Foamed concrete is filled into each mortise-tenon connection area, thus completing the assembly process of the steel frame-concrete sandwich composite wall panel frame.

[0024] This method integrates the construction logic of SRC-beam and column system, ensuring that the construction methods of SRC-beam, column and composite wall panel are highly consistent. It can complete the wall construction layer by layer according to the construction progress of beam and column structure, which has the advantages of system. It can ensure the high degree of coordination and uniformity of the overall structural assembly, and the top-down bearing and hoisting assembly logic can ensure the consistency and convenience of construction methods, improve assembly efficiency and assembly quality.

[0025] This invention has outstanding substantive features and significant progress compared to the prior art. Specifically, this invention has the following advantages: From a system perspective, it supplements the wall structure assembly scheme in the SRC system architecture, and the structural design and assembly method are highly consistent with the assembly logic of SRC beams and SRC columns, ensuring the stability of the system architecture.

[0026] From a convenience perspective, since the wall is divided into a lower wall panel, a middle wall panel, and an upper wall panel, and the three are assembled layer by layer, the problem of excessively large single-piece structure and inconvenient transportation is avoided, which improves the efficiency of wall assembly and ensures the effectiveness of load transfer.

[0027] From a cost perspective, since all wall structural components can be prefabricated in the factory, only assembly and partial construction are required on site, which avoids material waste during on-site construction, improves material utilization, and saves material costs. Because the factory production cycle is more controllable, the overall project progress is also relatively highly controllable, further ensuring cost control. Attached Figure Description

[0028] Figure 1 This is an isometric schematic diagram (abstract diagram) of the steel frame-concrete sandwich composite wall panel described in this invention. Figure 2 This is a rear view schematic diagram of the steel frame-concrete sandwich composite wall panel described in this invention; Figure 3 This is an isometric schematic diagram of the steel frame described in this invention; Figure 4 This is an isometric schematic diagram of the steel frame-concrete sandwich composite wall panel-lower plate described in this invention; Figure 5 This is a rear view schematic diagram of the steel frame-concrete sandwich composite wall panel-lower panel described in this invention; Figure 6This is an isometric sectional view of the lower plate of the steel frame-concrete sandwich composite wall panel described in this invention. Figure 7 This is a front sectional view of the lower panel of the steel frame-concrete sandwich composite wall panel described in this invention. Figure 8 This is an isometric schematic diagram of the steel frame-concrete sandwich composite wall panel-middle plate described in this invention; Figure 9 This is a rear view schematic diagram of the steel frame-concrete sandwich composite wall panel-middle plate described in this invention; Figure 10 This is an isometric sectional view of the steel frame-concrete sandwich composite wall panel-middle plate described in this invention. Figure 11 This is a front sectional view of the steel frame-concrete sandwich composite wall panel-middle plate described in this invention; Figure 12 This is an isometric schematic diagram of the steel frame-concrete sandwich composite wall panel-upper panel described in this invention; Figure 13 This is a rear view schematic diagram of the steel frame-concrete sandwich composite wall panel-upper panel described in this invention; Figure 14 This is an isometric sectional view of the upper panel of the steel frame-concrete sandwich composite wall panel described in this invention. Figure 15 This is a front sectional view of the steel frame-concrete sandwich composite wall panel-upper panel described in this invention. Figure 16 This is an isometric schematic diagram of the inner-outer wall connector described in this invention; In the diagram: 1. Steel frame-concrete sandwich composite wall panel - lower wall panel; 2. Steel frame-concrete sandwich composite wall panel - middle wall panel; 3. Steel frame-concrete sandwich composite wall panel - upper wall panel; 4. Inner-outer wall panel connector; 5. SRC column; 6. SRC beam; 7. Node core L-shaped connection end plate; 8. Node core cavity; 9. SRC beam-wall panel connector; 10. SRC column-wall panel connector; 11. Vertical-horizontal steel connector for wall panel; 101. Inner wall panel of lower wall panel; 102. Outer wall panel of lower wall panel; 103. Polyurethane foam board of lower wall panel; 104. Horizontal steel of lower wall panel; 105. Connector for lower wall panel-SRC column; 106. First joint of lower wall panel; 107. Second joint of lower wall panel; 108. Horizontal longitudinal reinforcement of lower wall panel; 109. Vertical longitudinal reinforcement of lower wall panel; 10101 10102 Lower wall panel inner page tenon, 10103 Lower wall panel inner page concrete bolt pre-drilled hole, 10201 Lower wall panel outer page tenon, 10202 Lower wall panel outer page mortise, 10501 Lower wall panel-SRC column connector threaded hole, 10601 Lower wall panel first joint threaded hole, 201 Middle wall panel inner page, 202 Middle wall panel outer page, 203 Middle wall panel polyurethane foam board, 204 Middle wall panel horizontal steel, 205 Middle wall panel-SRC column connector, 206 Middle wall panel first joint, 207 Middle wall panel second joint, 208 Middle wall panel horizontal longitudinal reinforcement, 209 Middle wall panel vertical longitudinal reinforcement, 20101 Middle wall panel inner page tenon, 20102 20103 Middle wall panel inner wall mortise, 20201 Middle wall panel outer wall tenon, 20202 Middle wall panel outer wall mortise, 20501 Middle wall panel-SRC column connector threaded hole, 20601 Middle wall panel first joint threaded hole, 301 Upper wall panel inner wall, 302 Upper wall panel outer wall, 303 Upper wall panel polyurethane foam board, 304 Upper wall panel horizontal steel, 305 Upper wall panel-SRC column connector, 306 Upper wall panel first joint, 307 Upper wall panel second joint, 308 Upper wall panel horizontal longitudinal reinforcement, 309 Upper wall panel vertical longitudinal reinforcement, 30101 Upper wall panel inner wall tenon, 30102 Upper wall panel inner wall concrete bolt pre-drilled hole, 30201 Upper wall panel outer wall tenon, 30501 upper wall panel-SRC column connector threaded hole, 30601 upper wall panel first joint threaded hole, 901 SRC beam-wall panel connector threaded hole, 1001 SRC column-wall panel connector threaded hole, 1101 wall panel vertical-horizontal steel connector threaded hole. Detailed Implementation

[0029] The technical solution of the present invention will be further described in detail below through specific embodiments.

[0030] like Figures 1-16As shown, a modular prefabricated steel frame-concrete sandwich composite wall panel includes a steel frame-concrete sandwich composite wall panel-upper wall panel 3 assembled into a composite wall panel, at least one steel frame-concrete sandwich composite wall panel-middle wall panel 2, and a steel frame-concrete sandwich composite wall panel-lower wall panel 1. In this embodiment, the number of steel frame-concrete sandwich composite wall panel-middle wall panels 2 is one.

[0031] The steel frame-concrete sandwich composite wall panel-upper wall panel 3, the steel frame-concrete sandwich composite wall panel-middle wall panel 2, and the steel frame-concrete sandwich composite wall panel-lower wall panel 1 all include an inner wall, an outer wall, a sandwich steel frame, and a polyurethane foam board filled around the sandwich layer, forming a composite wall panel structure that can ensure the structural performance of the wall panel.

[0032] The steel frame-concrete sandwich composite wall panel-upper wall panel 3, the steel frame-concrete sandwich composite wall panel-middle wall panel 2, and the steel frame-concrete sandwich composite wall panel-lower wall panel 1 are provided with matching tenon and mortise structures and connecting heads between the wall panels on their adjacent sides. The wall panels are aligned by the tenon and mortise structures and locked by the connecting heads with single-sided self-locking high-strength bolts, thus completing the alignment and locking connection between the wall panels and forming a composite wall.

[0033] The composite wall panel is equipped with matching beam / column tenon and mortise structures and beam / column connectors around its perimeter to align with the adjacent beams and columns. The beam / column tenon and mortise structures are used to align with the beams and columns, and the beam / column connectors are used to lock them in place with single-sided self-locking high-strength bolts. This achieves alignment and locking connection between the composite wall panel and the SRC beams and columns, forming a beam, column, and wall system structure.

[0034] To fully illustrate the characteristics of the entire wall panel structure, it will be explained in conjunction with the SRC-beam and column system, such as... Figures 1-3 As shown, the frame structure of the SRC-beam and column system includes SRC column 5, SRC beam 6, node core L-shaped connection end plate 7, node core cavity 8, SRC beam-wall panel connector 9 and SRC column-wall panel connector 10. The SRC beam-wall panel connector 9 is provided with SRC beam-wall panel connector threaded hole 901, and the SRC column-wall panel connector 10 is provided with SRC column-wall panel connector threaded hole 1001.

[0035] A thorough structural breakdown of each wall panel is provided. Firstly, as... Figures 4-7 As shown, the composite wall panel's steel frame-concrete sandwich composite wall panel-lower wall panel 1 includes an inner lower wall panel 101, an outer lower wall panel 102, a polyurethane foam lower wall panel 103, horizontal lower wall panel steel 104, vertical lower wall panel steel 100, a lower wall panel-SRC column connector 105, a first lower wall panel connector 106, and a second lower wall panel connector 107.

[0036] In this embodiment, the horizontal steel section 104 and the vertical steel section 15 of the lower wall panel are connected by a vertical-horizontal steel section connector 11 to form a sandwich steel frame for the lower wall panel. Figure 3 and Figure 6 As shown, the vertical steel section 15 of the lower wall panel is a steel section that penetrates the lower wall panel. The horizontal steel section 104 of the lower wall panel is connected to the vertical steel section 15 of the lower wall panel through the vertical-horizontal steel section connector 11. The inner wall 101 and the outer wall 102 of the lower wall panel are clamped and fixed to both sides of the lower wall panel sandwich steel frame through the inner-outer wall panel connector 14. Specifically, in this embodiment, both the inner wall 101 and the outer wall 102 of the lower wall panel include a pre-embedded steel reinforcement frame and concrete cast based on the steel reinforcement frame. The steel reinforcement frame is a steel mesh composed of the horizontal longitudinal reinforcement 108 and the vertical longitudinal reinforcement 109 of the lower wall panel. After the steel reinforcement frames in the inner wall 101 and the outer wall 102 of the lower wall panel are connected by the inner-outer wall panel connector 14, they are cast in the factory using molds to finally form an integral structure. The structure of the inner-outer wall panel connector 14 is as follows. Figure 16 As shown.

[0037] The lower wall panel sandwich steel frame is fitted with polyurethane foam board 103 around the perimeter seams to fill the cavity area.

[0038] The aforementioned multi-layered structure can fully guarantee the overall structural performance of the wall panel, eliminating the need for on-site secondary construction to reinforce the wall structure.

[0039] To facilitate connection with the SRC beam and column system and the intermediate wall panel, the ends of the horizontal steel sections 104 of each lower wall panel form lower wall panel-SRC column connectors 105. The upper ends of the vertical steel sections 100 of each lower wall panel form lower wall panel first connectors 106, and the lower ends form lower wall panel second connectors 107. The polyurethane foam board 103 of the lower wall panel has notches corresponding to the positions of the lower wall panel-SRC column connectors 105, lower wall panel first connectors 106, and lower wall panel second connectors 107. The ends of 7 are respectively provided with threaded holes 10501 for the lower wall panel-SRC column connector, threaded holes 10601 for the first connector of the lower wall panel, and threaded holes 10701 for the second connector of the lower wall panel. The inner wall of the lower wall panel 101 is provided with concrete bolt reserved holes 10103 for the lower wall panel inner wall 101 at the positions corresponding to the lower wall panel-SRC column connector 105, the first connector of the lower wall panel 106, and the second connector of the lower wall panel 107. After the hoisting and splicing alignment from top to bottom, the connectors and joints are locked from one side of the inner wall of the lower wall panel 101 by a single-sided self-locking high-strength bolt to achieve a high-strength connection.

[0040] To facilitate hoisting and alignment, the inner wall of the lower wall panel 101 is provided with tenons 10101 and mortises 10102 around its perimeter, and the outer wall of the lower wall panel 102 is provided with tenons 10201 and mortises 10202 around its perimeter. The tenons and mortises around the outer and inner walls of the lower wall panel enable precise alignment with beams, columns, and the middle wall panel, thereby integrating it with the beam and column system.

[0041] In this embodiment, as Figure 4-7 As shown, the end of the lower wall panel-SRC column connector 105 does not extend beyond the lower end face of the lower wall panel, while the pre-installed connector on the SRC column adopts a protruding design to achieve position matching; correspondingly, the second connector 107 of the lower wall panel also adopts an inward design because the corresponding connector on the lower SRC beam adopts a protruding design to achieve position matching.

[0042] The structural system of the composite wall panel, consisting of a steel frame, a concrete sandwich composite wall panel, and a middle wall panel 2, is basically the same as that of the lower wall panel. The only difference is the protrusion and retraction of the local joints. This is because during the assembly of the composite wall panel, each joint is aligned and connected using a socket structure. Therefore, when one of the joints is recessed, the matching joint is convex to achieve structural matching. To ensure the consistency of the structural system, the lower wall panel is recessed on all four sides, while the bottom joint of the middle wall panel protrudes and the other three sides are recessed. The upper wall panel has the same design as the middle wall panel.

[0043] Specifically, in this embodiment, as follows: Figures 8-11 As shown, the composite wall panel's steel frame-concrete sandwich composite wall panel-middle wall panel 2 includes the middle wall panel inner leaf wall 201, the middle wall panel outer leaf wall 202, the middle wall panel polyurethane foam board 203, the middle wall panel horizontal steel 204, the middle wall panel vertical steel 200, the middle wall panel-SRC column connector 205, the middle wall panel first joint 206, and the middle wall panel second joint 207.

[0044] The horizontal steel 204 and vertical steel 200 of the middle wall panel are connected by the vertical-horizontal steel connector 11 to form a sandwich steel skeleton of the middle wall panel. The inner wall 201 and outer wall 202 of the middle wall panel are clamped and fixed to both sides of the sandwich steel skeleton of the middle wall panel by the inner-outer wall panel connector 14. Specifically, in this embodiment, both the inner wall 201 and the outer wall 202 of the middle wall panel include a pre-embedded steel reinforcement skeleton and concrete cast based on the steel reinforcement skeleton. The steel reinforcement skeleton is a steel mesh composed of the horizontal longitudinal reinforcement 208 and the vertical longitudinal reinforcement 209 of the middle wall panel. After the steel reinforcement skeletons in the inner wall 201 and the outer wall 202 of the middle wall panel are connected by the inner-outer wall panel connector 14, they are respectively set in molds and cast in the factory to finally form an integral structure. The polyurethane foam board 203 of the middle wall panel is set in the seam around the sandwich steel skeleton of the middle wall panel.

[0045] The ends of the horizontal steel sections 204 of each of the middle wall panels form middle wall panel-SRC column connectors 205. The upper end of each of the vertical connectors 200 of the middle wall panels forms a first connector 206 and the lower end forms a second connector 207. The polyurethane foam board 203 of the middle wall panel has notches corresponding to the positions of the middle wall panel-SRC column connectors 205, the first connector 206, and the second connector 207. The middle wall panel-SRC column connectors 205, The ends of the first joint 206 and the second joint 207 of the middle wall panel are respectively provided with threaded holes 20501 for the middle wall panel-SRC column connector, threaded holes 20601 for the first joint of the middle wall panel, and threaded holes 20701 for the second joint of the middle wall panel. The inner wall 201 of the middle wall panel is provided with concrete bolt reserved holes 20103 for the inner wall panel on the middle wall panel, corresponding to the positions of the middle wall panel-SRC column connector 205, the first joint 206 and the second joint 207.

[0046] The inner wall of the middle wall panel 201 is provided with tenons 20101 and mortises 20102 around its perimeter, and the outer wall of the middle wall panel is provided with tenons 20201 and mortises 20202 around its perimeter.

[0047] The assembly method and structural principle of the middle wall panel are basically the same as those of the lower wall panel. The only difference is that the second joint 207 of the middle wall panel is designed to be protruding, which is used to fit the first joint 106 of the lower wall panel to achieve a socket connection.

[0048] like Figures 12-15As shown, the structure of the composite wall panel's steel frame-concrete sandwich composite wall panel-upper wall panel 3 is basically the same as that of the composite wall panel's steel frame-concrete sandwich composite wall panel-middle wall panel 2. The only difference is in the tenon and mortise structure of the composite wall panel's steel frame-concrete sandwich composite wall panel-upper wall panel 3. Specifically, it includes the upper wall panel inner wall 301, upper wall panel outer wall 302, upper wall panel polyurethane foam board 303, upper wall panel horizontal steel 304, upper wall panel vertical steel 300, upper wall panel-SRC column connector 305, upper wall panel first joint 306, and upper wall panel second joint 307.

[0049] The horizontal steel section 304 and the vertical steel section 300 of the upper wall panel are connected by a wall panel vertical-horizontal steel section connector 11 to form an upper wall panel sandwich steel frame. The wall panel vertical-horizontal steel section connector 11 has threaded holes 1101. The inner wall panel 301 and the outer wall panel 302 of the upper wall panel are clamped and fixed to both sides of the upper wall panel sandwich steel frame by an inner-outer wall panel connector 14. Specifically, in this embodiment, the inner wall panel 301 and the outer wall panel 302... Each of the upper wall panels 302 includes a pre-embedded steel reinforcement skeleton and concrete cast based on the steel reinforcement skeleton. The steel reinforcement skeleton is a steel mesh composed of horizontal longitudinal reinforcement 308 and vertical longitudinal reinforcement 309 of the upper wall panel. The steel reinforcement skeletons in the inner wall panel 301 and the outer wall panel 302 of the upper wall panel are connected by inner-outer wall panel connectors 14, and then cast in the factory using molds to finally form an integral structure. The polyurethane foam board 303 of the upper wall panel is installed in the gaps around the sandwich steel skeleton of the upper wall panel.

[0050] The ends of the horizontal steel sections 304 of each upper wall panel form upper wall panel-SRC column connectors 305. The upper ends of the vertical connectors 300 of each upper wall panel form upper wall panel first connectors 306 and lower ends form upper wall panel second connectors 307. The polyurethane foam board 303 of the upper wall panel has notches corresponding to the positions of the upper wall panel-SRC column connectors 305, the upper wall panel first connectors 306, and the upper wall panel second connectors 307. The upper wall panel-SRC column connectors 305... The ends of the first joint 306 and the second joint 307 of the upper wall panel are respectively provided with threaded holes 30501 for the upper wall panel-SRC column connector, threaded holes 30601 for the first joint of the upper wall panel, and threaded holes 30701 for the second joint of the upper wall panel. The inner wall of the upper wall panel 301 is provided with concrete bolt reserved holes 30202 for the inner wall of the upper wall panel at the positions corresponding to the upper wall panel-SRC column connector 305, the first joint 306 and the second joint 307.

[0051] The inner wall of the upper wall panel is provided with tenons 30101 around its perimeter, and the outer wall of the upper wall panel is provided with tenons 30201 around its perimeter. Since the connection structure around the inner and outer walls of the upper wall panel is a mortise structure, only tenons are required.

[0052] A method for assembling a modular prefabricated steel frame-concrete sandwich composite wall panel, using the aforementioned modular prefabricated steel frame-concrete sandwich composite wall panel, is implemented through the following steps: Factory preparation stage: Taking the steel frame-concrete sandwich composite wall panel-bottom wall panel as an example.

[0053] Step 1: The factory fabricates the horizontal steel section 104, the first joint 106, and the second joint 107 of the lower wall panel, assembles them, welds the lower wall panel-SRC column connector 105 at the corresponding positions, and drills threaded holes 10501 for the lower wall panel-SRC column connector at the corresponding positions. Then, the steel reinforcement cage is tied to the polyester foam board 103 of the lower wall panel, wherein the inner and outer wall reinforcement cages are connected through the inner-outer wall panel connector 4. Then, the template is made in sequence, and the inner wall 101 and the outer wall 103 of the lower wall panel are poured. Page 102, and make pre-drilled holes 10103 for concrete bolts, tenons 10101 and mortises 10102 for the inner page wall of the lower wall panel, tenons 10201 and mortises 10202 for the outer page wall of the lower wall panel at the corresponding positions. After the concrete curing is completed, the component steel frame-concrete sandwich composite wall panel-lower wall panel 1 is completed. Similarly, the component steel frame-concrete sandwich composite wall panel-middle wall panel 2 and the component steel frame-concrete sandwich composite wall panel-upper wall panel 3 are completed in sequence.

[0054] During the assembly of various components at the construction site: Step 2: Connect the first-layer SRC beam 6 to the first-layer node core connection end using a single-sided self-locking high-strength bolt.

[0055] Step 3: Connect the bottom of the second-layer SRC column 5 to the L-shaped connection end plate 7 of the node core of the first layer in sequence using single-sided self-locking high-strength bolts. The top of the second-layer SRC column 5 is temporarily left open to allow for the installation of composite wall panels.

[0056] Step 4: Vertically insert the inner wall tenon 10101 and outer wall tenon 10201 of the lower wall panel on both sides of the steel frame-concrete sandwich composite wall panel-lower wall panel 1 into the designated position of the SRC column 5. Connect the second joint 107 of the lower wall panel at the bottom of the steel frame-concrete sandwich composite wall panel-lower wall panel 1 to the SRC beam-wall panel connector 9 pre-embedded in the first-floor SRC beam using single-sided self-locking high-strength bolts. Connect the lower wall panel-SRC column connector 105 on both sides to the SRC column-wall panel connector 10. This completes the assembly of the steel frame-concrete sandwich composite wall panel-lower wall panel 1.

[0057] Step 5: Vertically insert the inner wall tenon 20101 and outer wall tenon 20201 of the middle wall panel on both sides of the steel frame-concrete sandwich composite wall panel-middle wall panel 2 into the designated positions of the SRC column 5, so that the inner wall tenon 20101 and outer wall tenon 20201 of the middle wall panel 2 at the bottom correspond to the inner wall mortises 10102 and outer wall mortises 10202 of the lower wall panel 1 at the top, and secure them with single-sided self-locking high-strength bolts. Connect the second joint 207 of the middle wall panel at the bottom of the steel frame-concrete sandwich composite wall panel-middle wall panel 2 to the first joint 106 of the lower wall panel of the steel frame-concrete sandwich composite wall panel-lower wall panel 1. Connect the middle wall panels-SRC column connectors 205 on both sides to the SRC column-wall panel connectors 10. This completes the assembly of the steel frame-concrete sandwich composite wall panel-middle wall panel 2. Similarly, complete the assembly of the steel frame-concrete sandwich composite wall panel-upper wall panel 3.

[0058] Step 6: Connect the bottom L-shaped connecting end plate 7 of the second-layer node core of the structure to the top of the SRC column of the first layer of the structure using single-sided self-locking high-strength bolts.

[0059] Step 7: Connect the second-layer SRC beam to the second-layer node core connection end using a single-sided self-locking high-strength bolt.

[0060] Step 8: Fill the mortise-tenon connection area with foamed concrete to complete the assembly process of the steel frame-concrete sandwich composite wall panel frame.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the present invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. A modular prefabricated steel frame-concrete sandwich composite wall panel, characterized in that: It includes a steel frame-concrete sandwich composite wall panel-upper wall panel, at least one steel frame-concrete sandwich composite wall panel-middle wall panel, and a steel frame-concrete sandwich composite wall panel-lower wall panel, which are assembled into a composite wall panel. The steel frame-concrete sandwich composite wall panel-upper wall panel, the steel frame-concrete sandwich composite wall panel-middle wall panel, and the steel frame-concrete sandwich composite wall panel-lower wall panel all include an inner wall, an outer wall, a sandwich steel frame, and a polyurethane foam board filled around the sandwich. The adjacent sides of the steel frame-concrete sandwich composite wall panel-upper wall panel, steel frame-concrete sandwich composite wall panel-middle wall panel, and steel frame-concrete sandwich composite wall panel-lower wall panel are provided with matching tenon and mortise structures and wall panel connectors, so as to align through the tenon and mortise structures and lock through the connectors with single-sided self-locking high-strength bolts. The composite wall panel is equipped with matching beam / column tenon and mortise structures and beam / column connectors around its perimeter, corresponding to the adjacent beams and columns. The beam / column tenon and mortise structures are aligned with the beams and columns, and the beam / column connectors are locked in place with single-sided self-locking high-strength bolts.

2. The modular prefabricated steel frame-concrete sandwich composite wall panel according to claim 1, characterized in that: The composite wall panel's steel frame-concrete sandwich composite wall panel-lower wall panel includes an inner lower wall panel, an outer lower wall panel, a polyurethane foam lower wall panel, horizontal lower wall panel steel, vertical lower wall panel steel, a lower wall panel-SRC column connector, a first lower wall panel joint, a second lower wall panel joint, horizontal lower wall panel reinforcement, and vertical lower wall panel reinforcement. The horizontal and vertical steel sections of the lower wall panel are connected by vertical-horizontal steel section connectors to form a sandwich steel frame for the lower wall panel. The inner and outer walls of the lower wall panel are clamped and fixed to both sides of the sandwich steel frame for the lower wall panel by inner-outer wall panel connectors. The polyurethane foam board of the lower wall panel is installed in the gaps around the sandwich steel frame for the lower wall panel. The ends of the horizontal steel sections of each lower wall panel form lower wall panel-SRC column connectors. The upper ends of the vertical steel sections of each lower wall panel form lower wall panel first joints, and the lower ends form lower wall panel second joints. The polyurethane foam board of the lower wall panel is provided with notches at the positions corresponding to the lower wall panel-SRC column connectors, lower wall panel first joints, and lower wall panel second joints. The ends of the lower wall panel-SRC column connectors, lower wall panel first joints, and lower wall panel second joints are respectively provided with threaded holes for the lower wall panel-SRC column connectors, lower wall panel first joints, and lower wall panel second joints. The inner wall of the lower wall panel is provided with pre-drilled holes for concrete bolts at the positions corresponding to the lower wall panel-SRC column connectors, lower wall panel first joints, and lower wall panel second joints.

3. The modular prefabricated steel frame-concrete sandwich composite wall panel according to claim 2, characterized in that: The lower wall panel inner wall is provided with a tenon and a mortise around its perimeter, and the lower wall panel outer wall is provided with a tenon and a mortise around its perimeter.

4. The modular prefabricated steel frame-concrete sandwich composite wall panel according to claim 1, characterized in that: The composite wall panel's steel frame-concrete sandwich composite wall panel-middle wall panel includes an inner wall panel, an outer wall panel, a polyurethane foam board, horizontal steel sections, vertical steel sections, a middle wall panel-SRC column connector, a first joint, and a second joint. The horizontal and vertical steel sections of the middle wall panel are connected by vertical-horizontal steel section connectors to form a sandwich steel frame for the middle wall panel. The inner and outer walls of the middle wall panel are clamped and fixed to both sides of the sandwich steel frame for the middle wall panel by inner-outer wall panel connectors. The polyurethane foam board of the middle wall panel is installed in the gaps around the sandwich steel frame for the middle wall panel. The ends of the horizontal steel sections of each of the central wall panels form central wall panel-SRC column connectors. The upper end of each of the vertical connectors forms a central wall panel first joint, and the lower end forms a central wall panel second joint. The polyurethane foam board of the central wall panel is provided with notches at the positions corresponding to the central wall panel-SRC column connector, the central wall panel first joint, and the central wall panel second joint. The ends of the central wall panel-SRC column connector, the central wall panel first joint, and the central wall panel second joint are respectively provided with central wall panel-SRC column connector threaded holes, central wall panel first joint threaded holes, and central wall panel second joint threaded holes. The inner wall of the central wall panel is provided with concrete bolt pre-reserved holes at the positions corresponding to the central wall panel-SRC column connector, the central wall panel first joint, and the central wall panel second joint.

5. The modular prefabricated steel frame-concrete sandwich composite wall panel according to claim 4, characterized in that: The inner wall of the middle wall panel is provided with tenons and mortises around its perimeter, and the outer wall of the middle wall panel is provided with tenons and mortises around its perimeter.

6. The modular prefabricated steel frame-concrete sandwich composite wall panel according to claim 1, characterized in that: The composite wall panel's steel frame-concrete sandwich composite wall panel-upper wall panel includes an inner wall panel, an outer wall panel, a polyurethane foam board, horizontal steel, vertical steel, an SRC column connector, a first joint, and a second joint. The horizontal and vertical steel sections of the upper wall panel are connected by vertical-horizontal steel section connectors to form a sandwich steel frame for the upper wall panel. The inner and outer walls of the upper wall panel are clamped and fixed to both sides of the sandwich steel frame for the upper wall panel by inner-outer wall panel connectors. The polyurethane foam board of the upper wall panel is installed in the gaps around the sandwich steel frame for the upper wall panel. The ends of the horizontal steel sections of each upper wall panel form upper wall panel-SRC column connectors. The upper ends of the vertical connectors of each upper wall panel form upper wall panel first joints, and the lower ends form upper wall panel second joints. The polyurethane foam board of the upper wall panel is provided with notches at the positions corresponding to the upper wall panel-SRC column connectors, the upper wall panel first joints, and the upper wall panel second joints. The ends of the upper wall panel-SRC column connectors, the upper wall panel first joints, and the upper wall panel second joints are respectively provided with upper wall panel-SRC column connector threaded holes, upper wall panel first joint threaded holes, and upper wall panel second joint threaded holes. The inner wall of the upper wall panel is provided with concrete bolt pre-reserved holes at the positions corresponding to the upper wall panel-SRC column connectors, the upper wall panel first joints, and the upper wall panel second joints.

7. The modular prefabricated steel frame-concrete sandwich composite wall panel according to claim 6, characterized in that: The inner wall of the upper wall panel is provided with tenons around its perimeter, and the outer wall of the upper wall panel is provided with tenons around its perimeter.

8. The modular prefabricated steel frame-concrete sandwich composite wall panel according to claim 1, characterized in that: Both the inner and outer wall panels include a pre-embedded steel reinforcement frame and concrete cast based on the steel reinforcement frame. The steel reinforcement frames in the inner and outer wall panels are connected by an inner-outer wall panel connector.

9. A method for assembling a modular prefabricated steel frame-concrete sandwich composite wall panel, characterized in that: The modular prefabricated steel frame-concrete sandwich composite wall panel as described in any one of claims 1-8 is assembled through the following steps: Factory preparation stage: Taking the steel frame-concrete sandwich composite wall panel-lower wall panel as an example, the factory manufactures the horizontal steel frame, the first joint, and the second joint of the lower wall panel, assembles them, welds the lower wall panel-SRC column connectors at corresponding positions, and opens threaded holes for the lower wall panel-SRC column connectors at corresponding positions. Then, the steel frame is tied to the polyester foam board of the lower wall panel. The steel frames in the inner and outer walls are connected by the inner-outer wall panel connectors. Then, the templates are made in sequence, and the inner and outer walls of the lower wall panel are poured. The concrete bolt holes, tenons, mortises, tenons, and mortises of the inner and outer walls of the lower wall panel are opened at corresponding positions. After the concrete curing is completed, the component steel frame-concrete sandwich composite wall panel-lower wall panel is completed. Similarly, the component steel frame-concrete sandwich composite wall panel-middle wall panel and steel frame-concrete sandwich composite wall panel-upper wall panel are completed in sequence. Assembly stages of various components at the construction site: The first-floor SRC beam is connected to the first-floor node core connection end using a single-sided self-locking high-strength bolt; The bottom of the second-layer SRC column is connected to the top L-shaped connection plate of the first-layer node core in sequence using single-sided self-locking high-strength bolts. The top of the second-layer SRC column is not connected for the time being. The steel frame-concrete sandwich composite wall panel-lower wall panel is hoisted from top to bottom, and the inner and outer tenons of the lower wall panel on both sides are vertically inserted into the designated positions of the SRC column. The second joint of the lower wall panel at the bottom of the steel frame-concrete sandwich composite wall panel-lower wall panel is connected to the SRC beam-wall panel connector pre-embedded in the first-floor SRC beam using single-sided self-locking high-strength bolts. The lower wall panel-SRC column connectors on both sides are then connected to the SRC column-wall panel connectors. This completes the assembly of the steel frame-concrete sandwich composite wall panel-lower wall panel. The steel frame-concrete sandwich composite wall panel-middle wall panel is hoisted and vertically inserted into the designated positions of the SRC column from top to bottom, with the inner and outer tenons of the middle wall panels on both sides aligned with those of the lower wall panel's inner and outer tenons. The second joint of the middle wall panel at the bottom of the steel frame-concrete sandwich composite wall panel-middle wall panel is then connected to the first joint of the lower wall panel using single-sided self-locking high-strength bolts. The middle wall panel-SRC column connectors on both sides are then connected to the SRC column-wall panel connectors, thus completing the assembly of the steel frame-concrete sandwich composite wall panel-middle wall panel. The assembly of the steel frame-concrete sandwich composite wall panel-upper wall panel is completed similarly. The bottom L-shaped connecting end plate of the second-layer node core of the structure is connected to the top of the SRC column of the first layer of the structure by means of single-sided self-locking high-strength bolts; The second-layer SRC beam is connected to the second-layer node core connection end using a single-sided self-locking high-strength bolt. Foamed concrete is filled into each mortise-tenon connection area, thus completing the assembly process of the steel frame-concrete sandwich composite wall panel frame.

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