Fabricated concrete grid composite outer wall steel-concrete composite structure system

Abstract

The application discloses an assembled concrete grid composite outer wall steel-concrete composite structure system, which comprises reinforced concrete and steel structure; the reinforced concrete comprises cup mouth foundation and independent foundation, special-shaped column type wall body connecting piece, assembled concrete grid composite outer wall and full-assembled floor; and the steel structure is H-shaped steel beam, floor connecting angle steel, pre-buried steel plate, high-strength bolt connecting piece, bolt nail and pre-buried steel wire rope sleeve. The application adopts the above-mentioned assembled concrete grid composite outer wall steel-concrete composite structure system, the connecting mode of the system is reasonable in stress and simple in construction, the continuity of the vertical component stress is considered, the low-rise residential structure is based on, the node connecting mode facilitating rapid construction is provided, the full dry method connection is basically realized in the construction process, the construction efficiency is greatly improved, and the construction cost is saved.

Description

Technical Field

[0001] This invention belongs to the field of building structure technology, specifically relating to a prefabricated concrete grid composite exterior wall steel-concrete composite structure system. Background Technology

[0002] In recent years, improving farmers' production and living conditions and building beautiful and livable villages have increasingly become a focus of social attention, creating an urgent need to construct more comfortable and safe housing to build beautiful villages. Prefabricated buildings, with their green economy and simple construction features, are suitable for large-scale promotion and application in the field of rural housing.

[0003] Currently, most rural and town residences are low-rise masonry structures, and most do not consider the thermal insulation performance of the walls, resulting in shortcomings such as insufficient design level, serious resource waste, and weak disaster resistance. Reinforced concrete structures are more readily accepted by rural families than steel or wood structures, and are also more environmentally friendly and economical than masonry structures. However, in existing prefabricated concrete structures, beam-column joints often rely on post-casting to ensure the safety of complex stresses at the joints, which greatly increases construction difficulty and hinders rapid construction. Furthermore, the commonly seen prefabricated concrete frame structures often involve building the external infill walls after the main frame construction is completed, leading to increased maintenance costs during construction and use, and making it difficult to guarantee the thermal insulation performance of the external walls. Summary of the Invention

[0004] The purpose of this invention is to provide a prefabricated concrete grid composite exterior wall steel-concrete composite structure system. The connection method of this system is reasonable in terms of stress and easy to construct. It takes into account the continuity of the stress of vertical components and is based on low-rise residential structures. It proposes a node connection method that facilitates rapid construction. The construction process basically realizes the connection of dry method, which greatly improves construction efficiency and saves construction costs.

[0005] To achieve the above objectives, the present invention provides a prefabricated concrete grid composite exterior wall steel-concrete composite structure system, including reinforced concrete and steel structure; the reinforced concrete includes cup-shaped foundations and independent foundations, irregular column wall connectors, prefabricated concrete grid composite exterior walls, and fully prefabricated floor slabs; the steel structure includes H-shaped steel beams, floor slab connecting angle steel, embedded steel plates, high-strength bolt connectors, studs, and embedded steel wire rope sleeves.

[0006] Preferably, the irregular column wall connectors include L-shaped connectors and T-shaped connectors; the irregular column wall connectors are prefabricated as a whole from the irregular column body and the tongue and groove bolt connection area, and the dimensions of the irregular column body are kept consistent in the same structure according to the size variation of the matching prefabricated concrete grid composite exterior wall.

[0007] Preferably, bolt holes and nut washer recesses are prefabricated on the tongue and groove bolt connection areas of the prefabricated concrete grid composite exterior wall and the irregular column wall connectors. After staggered lap joints, they are connected by high-strength bolts to form a structural whole. The tongue and groove of the irregular column wall connectors is set on the inner side of the structure, and the tongue and groove of the prefabricated concrete grid composite exterior wall is set on the outer side of the structure.

[0008] Preferably, when the tongue and groove bolt connection area contains a large-sized hidden structural beam within the high wall of the structural layer, a bolt reinforcement zone is set up, and the bolt spacing in the reinforcement zone is half that in the non-reinforcement zone; the frame structure uses ordinary rectangular reinforced concrete columns, combined with H-shaped steel beams and the outer ring structure to form an overall frame.

[0009] Preferably, the embedded steel plate of the irregular column wall connector is connected to the H-shaped steel beam by high-strength bolts; depending on the span and stress characteristics, it is divided into rigid connection node and hinged connection node; the irregular column wall connector has pre-installed anchor bars inside, and the anchor bars are plugged and welded to the embedded steel plate; the two mutually perpendicular embedded steel plates are connected by welding.

[0010] Preferably, the prefabricated concrete grid composite exterior wall is divided into three basic forms depending on the location of the wall: one with only windows, one with only doors, and one without doors or windows.

[0011] Preferably, the prefabricated concrete grid composite exterior wall contains a reinforced concrete grid structure composed of concealed beams and columns; lightweight thermal insulation material is embedded in the grid of the reinforced concrete grid structure.

[0012] Preferably, the fully prefabricated floor slab and the prefabricated concrete grid composite exterior wall are connected by steel wire ropes; the fully prefabricated floor slab is equipped with pre-installed anchor bars and floor slab connecting angle steel at the elevation of the fully prefabricated floor slab, and the prefabricated concrete grid composite exterior wall is equipped with pre-installed anchor bars and floor slab connecting angle steel inside the wall.

[0013] The anchor bars are connected to the floor slabs by through-hole plug welding. Steel wire rope sleeves are pre-embedded in the corresponding positions of the fully prefabricated floor slabs and prefabricated concrete grid composite exterior walls. They are connected by welding studs or continuous connecting bars. The fully prefabricated floor slabs are leveled with shims between the floor slabs and the connecting angle steels. The joints of the wall panels are roughened. After installation, C35 non-shrink fine stone concrete or high-strength grout is poured.

[0014] Preferably, the floor slabs of the fully prefabricated floor slabs are connected by pre-embedded steel wire ropes. Depending on the application location, there are three types of floor slab connections: pure floor slab connections, floor slab connections at H-shaped steel beams, and floor slab connections when the steel beams are staggered on the left and right sides.

[0015] Preferably, the structural system adopts the following basic form: the overall cup-shaped foundation of the outer frame is combined with the internal rectangular independent foundation, and the irregular column wall connectors and the prefabricated concrete grid composite outer wall are all inserted into the cup-shaped foundation.

[0016] The cross-section of the cup opening should be an inverted trapezoid with a narrow bottom and a wide top. A 50 cm leveling layer should be reserved between the bottom of the cup opening and the upper component. The upper component should be roughened within the foundation range of the cup opening. The gap between the cup opening and the component should be filled with C35 fine stone concrete after the wall is installed and positioned.

[0017] The present invention employs the above-mentioned prefabricated concrete grid composite exterior wall steel-concrete composite structure system, and its beneficial effects are as follows:

[0018] (1) The reinforced concrete grid composite exterior wall in this invention achieves integrated structural insulation of the wall by including a reinforced concrete grid structure, a reinforced concrete hidden beam and thermal insulation filling material inside the wall, which enhances the physical properties such as structural insulation while ensuring structural safety.

[0019] (2) In this invention, tongue and groove are reserved between the walls and high-strength bolts are used to connect them through reinforced concrete wall connecting components. The H-shaped steel beams and rectangular reinforced concrete columns, wall connecting components, etc. inside the structure are bolted together through embedded steel plates. The precast floor slabs are connected to each other, and the floor slabs are connected to the H-shaped steel beams and reinforced concrete grid composite exterior walls through embedded steel wire ropes. All of the above connection methods realize the dry connection of the nodes, which is suitable for low-rise residential structures, reduces on-site wet work, and improves construction efficiency.

[0020] (3) The tongue and groove joints in this invention adopt a staggered joint form, which can avoid the existence of continuous gaps between prefabricated components and improve the thermal insulation and waterproofing effect of the structure. Moreover, the reinforced concrete grid composite exterior wall, through the built-in lightweight thermal insulation material, not only ensures the thermal insulation and fire resistance performance of the structure, but also reduces the self-weight of the structure. At the same time, it can be prefabricated as a whole by two layers of walls, which greatly reduces the number of components, improves the standardization of wall components, and facilitates the promotion and application of the structure.

[0021] (4) All components in the structural system of the present invention can be prefabricated in the factory and transported to the construction site for quick installation, effectively shortening the construction cycle.

[0022] (5) In this invention, the reinforced concrete grid composite exterior wall can not only serve as a structural load-bearing component to meet structural safety, but also improve the thermal insulation performance of the wall by reducing its own weight through built-in thermal insulation material, thus realizing the integration of structure and thermal insulation, and providing a new type of prefabricated structural system suitable for low-rise rural residential buildings.

[0023] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0024] Figure 1This is a schematic diagram of a prefabricated concrete grid composite exterior wall steel-concrete composite structure system according to the present invention, specifically a reinforced concrete grid composite exterior wall (containing only windows); wherein, (a) is a front view and (b) is a rear view;

[0025] Figure 2 This is a schematic diagram of a prefabricated concrete grid composite exterior wall steel-concrete composite structure system according to the present invention, specifically a reinforced concrete grid composite exterior wall (including windows only); wherein, (a) is a front three-dimensional structural view, and (b) is a back three-dimensional structural view;

[0026] Figure 3 This is a top view of a prefabricated concrete grid composite exterior wall steel-concrete composite structure system according to the present invention (including only windows);

[0027] Figure 4 This is a schematic diagram of a prefabricated concrete grid composite exterior wall steel-concrete composite structure system according to the present invention, specifically a reinforced concrete grid composite exterior wall (including only the door); wherein, (a) is a front view and (b) is a rear view;

[0028] Figure 5 This is a schematic diagram of a prefabricated concrete grid composite exterior wall steel-concrete composite structure system according to the present invention, specifically a reinforced concrete grid composite exterior wall (including only the door); wherein, (a) is a front three-dimensional structural view, and (b) is a back three-dimensional structural view;

[0029] Figure 6 This is a top view of a prefabricated concrete grid composite exterior wall steel-concrete composite structure system according to the present invention (including only the door);

[0030] Figure 7 This is a schematic diagram of a prefabricated concrete grid composite exterior wall steel-concrete composite structure system according to the present invention, wherein (a) is a front view and (b) is a rear view;

[0031] Figure 8 This is a schematic diagram of a prefabricated concrete grid composite exterior wall steel-concrete composite structure system according to the present invention, wherein (a) is a front three-dimensional structural view and (b) is a back three-dimensional structural view.

[0032] Figure 9 This is a top view of a prefabricated concrete grid composite exterior wall steel-concrete composite structure system according to the present invention (excluding doors and windows);

[0033] Figure 10This is a schematic diagram of an L-shaped irregular column wall connector of an embodiment of a prefabricated concrete grid composite exterior wall steel-concrete composite structure system of the present invention; wherein, (a) is a front view, (b) is a front three-dimensional structural view, and (c) is a back three-dimensional structural view.

[0034] Figure 11 This is a top view of an L-shaped irregular column wall connector, an embodiment of a prefabricated concrete grid composite exterior wall steel-concrete composite structure system of the present invention.

[0035] Figure 12 This is a schematic diagram of a T-shaped irregular column wall connector, which is an embodiment of a prefabricated concrete grid composite exterior wall steel-concrete composite structure system of the present invention; wherein, (a) is a front view, (b) is a front three-dimensional structural view, and (c) is a back three-dimensional structural view.

[0036] Figure 13 This is a top view of a T-shaped irregular column wall connector, an embodiment of a prefabricated concrete grid composite exterior wall steel-concrete composite structure system of the present invention;

[0037] Figure 14 This is a schematic diagram of a fully prefabricated reinforced concrete floor slab, which is an embodiment of the prefabricated concrete grid composite exterior wall steel-concrete composite structure system of the present invention; wherein, (a) is a floor slab without avoidance, and (b) is a floor slab with avoidance of irregular columns;

[0038] Figure 15 This is a schematic diagram of the cup-shaped foundation structure of an embodiment of the prefabricated concrete grid composite exterior wall steel-concrete composite structure system of the present invention;

[0039] Figure 16 This is a top view of a cup-shaped foundation of an embodiment of the prefabricated concrete grid composite exterior wall steel-concrete composite structure system of the present invention;

[0040] Figure 17 This is a schematic diagram of an independent foundation structure of an embodiment of the prefabricated concrete grille composite exterior wall steel-concrete composite structure system of the present invention;

[0041] Figure 18 This is a top view of an independent foundation of an embodiment of the prefabricated concrete grid composite exterior wall steel-concrete composite structure system of the present invention;

[0042] Figure 19 This is a schematic diagram of the tongue and groove bolt connection between exterior walls and between exterior walls and wall connecting components in an embodiment of the prefabricated concrete grid composite exterior wall steel-concrete composite structure system of the present invention;

[0043] Figure 20 This is a schematic diagram of the rigid connection node between the H-beam and the wall, which is an embodiment of the prefabricated concrete grid composite exterior wall steel-concrete composite structure system of the present invention; wherein, (a) is the front view of the rigid connection node, and (b) is the side view of the rigid connection node.

[0044] Figure 21 This is a schematic diagram of the hinged joint between the H-beam and the wall, which is an embodiment of the prefabricated concrete grid composite exterior wall steel-concrete composite structure system of the present invention; wherein, (a) is a front view of the hinged joint and (b) is a side view of the hinged joint.

[0045] Figure 22 This is a schematic diagram of the connection node between the fully prefabricated floor slab and the grid wall in an embodiment of the prefabricated concrete grid composite exterior wall steel-concrete composite structure system of the present invention.

[0046] Figure 23 This is a schematic diagram of the connection node structure between fully prefabricated floor slabs in an embodiment of the prefabricated concrete grid composite exterior wall steel-concrete composite structure system of the present invention.

[0047] Figure 24 This is a schematic diagram of the connection node between the fully prefabricated floor slab and the H-shaped steel beam in an embodiment of the prefabricated concrete grid composite exterior wall steel-concrete composite structure system of the present invention.

[0048] Figure 25 This is a schematic diagram of the connection node between the prefabricated concrete grid composite exterior wall steel-concrete composite structure system of the present invention and the H-shaped steel beam when there is a height difference on both sides of the fully prefabricated floor slab.

[0049] Figure 26 This is an exploded view of a first-layer structure of a prefabricated concrete grille composite exterior wall steel-concrete composite structure system according to an embodiment of the present invention.

[0050] Figure 27 This is a schematic diagram of the first-floor assembly of a prefabricated concrete grille composite exterior wall steel-concrete composite structure system according to an embodiment of the present invention.

[0051] Figure 28 This is an exploded two-layer schematic diagram of an embodiment of the prefabricated concrete grille composite exterior wall steel-concrete composite structure system of the present invention.

[0052] Figure 29 This is a schematic diagram of the two-layer assembly of a prefabricated concrete grid composite exterior wall steel-concrete composite structure system according to an embodiment of the present invention.

[0053] Figure Labels

[0054] 1. Thermal insulation material; 2. Floor slab connecting angle steel; 3. Tongue and groove bolt connection area; 4. High-strength bolt connectors; 5. Bolt reinforcement area; 6. Embedded steel plate; 7. Anchor bar; 8. Stud; 9. High-strength bolt; 10. H-beam; 11. Irregular column wall connectors; 12. Prefabricated concrete grid composite exterior wall; 13. Fully prefabricated floor slab; 14. Embedded steel wire rope sleeve; 15. Continuous connecting bar. Detailed Implementation

[0055] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0056] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0057] like Figures 26-29 As shown, a prefabricated concrete grid composite exterior wall 12 steel-concrete composite structural system includes reinforced concrete and steel structure. The reinforced concrete includes cup-shaped foundations and independent foundations, irregular column wall connectors 11, prefabricated concrete grid composite exterior wall 12, and fully prefabricated floor slabs 13. The steel structure consists of H-beams 10, floor slab connecting angle steel 2, embedded steel plates 6, high-strength bolt connectors 4, studs 8, and embedded steel wire rope sleeves 14.

[0058] The irregular column wall connector 11 includes L-shaped connectors and T-shaped connectors. For example... Figure 10 , Figure 12 As shown, the irregular column wall connector 11 is prefabricated as a whole from the main body of the irregular column and the tongue and groove bolt connection area 3. The size of the main body of the irregular column is consistent in the same structure according to the size variation of the matching prefabricated concrete grid composite exterior wall 12, so as to facilitate standardized factory prefabrication. At the same time, in order to increase the ease of construction, when the structure is applied to a two-story structure, both the irregular column wall connector 11 and the prefabricated concrete grid composite exterior wall 12 can be prefabricated as a whole on the two floors.

[0059] Both the prefabricated concrete grid composite exterior wall 12 and the irregular column wall connector 11 have prefabricated bolt holes and nut washer recesses on their tongue-and-groove bolt connection areas 3. After staggered overlapping, they are connected by high-strength bolts 9 to form a structural whole. The tongue and groove of the irregular column wall connector 11 is set on the inner side of the structure, while the tongue and groove of the prefabricated concrete grid composite exterior wall 12 is set on the outer side of the structure, thus ensuring that the prefabricated wall snaps onto the connector from the outside in, facilitating construction connection.

[0060] When the tongue-and-groove bolt connection zone 3 is located within a high-wall structure containing a large-sized hidden structural beam, a bolt reinforcement zone 5 is set up, such as... Figure 19As shown, the bolt spacing in the encrypted zone is half that in the unencrypted zone. The internal frame structure uses ordinary rectangular reinforced concrete columns, combined with H-beams 10 and the outer ring structure to form an integral frame.

[0061] The structural system employs a foundation form consisting of an integral cup-shaped foundation for the outer frame combined with independent rectangular foundations within the structure. Figures 15-18 As shown, both the irregular column wall connector 11 and the prefabricated concrete grid composite exterior wall 12 are inserted into the cup-shaped opening to ensure the continuity of vertical force transmission in the structure, prevent uneven settlement, and enhance the overall integrity of the structure. The cross-section of the cup-shaped opening should preferably be an inverted trapezoid with a narrow bottom and a wide top. A 50 cm leveling layer should be reserved between the bottom of the cup-shaped opening and the upper component to facilitate the handling of construction errors of the prefabricated components. A rough surface should be made within the foundation area where the upper component is inserted into the cup-shaped opening. The gap between the cup-shaped opening and the component can be filled with C35 fine stone concrete after the wall installation and positioning are completed, thereby ensuring the integrity and durability of the structure.

[0062] The embedded steel plate 6 of the irregular column wall connector 11 is connected to the H-beam 10 by high-strength bolts 9. Depending on the span and stress characteristics, they are classified as rigid connections and hinged connections. For example... Figure 20 , Figure 21 As shown, the irregular column wall connector 11 has pre-installed anchor bars 7 inside, and the anchor bars 7 are plugged and welded to the pre-embedded steel plates 6. The two mutually perpendicular pre-embedded steel plates 6 are connected by welding.

[0063] like Figure 1 , Figure 4 , Figure 7 As shown, the prefabricated concrete grid composite exterior wall 12 is divided into basic forms with only windows, only doors, and no doors or windows, depending on the location of the wall. Other similar standardized components can be added according to the needs of the building. The overall structure is composed of different standardized components.

[0064] The prefabricated concrete grid composite exterior wall 12 contains a reinforced concrete space frame composed of concealed beams and columns. Lightweight thermal insulation material 1 is embedded in the grid of the reinforced concrete space frame.

[0065] like Figure 22 As shown, the fully prefabricated floor slab 13 and the prefabricated concrete grid composite exterior wall 12 are connected by steel wire ropes. The fully prefabricated floor slab 13 is equipped with anchor bars 7 and pre-installed floor slab connecting angle steel 2 at the elevation. The prefabricated concrete grid composite exterior wall 12 is pre-installed with anchor bars 7 and floor slab connecting angle steel 2 inside the wall, and is prefabricated as a whole in the factory.

[0066] Anchor bars 7 are plugged and welded to the connecting angle steel 2 of the floor slab. Steel wire rope sleeves 14 are pre-embedded in the corresponding positions of the fully prefabricated floor slab 13 and the prefabricated concrete grid composite exterior wall 12. They are connected by welding studs 8 or continuous connecting bars 15. The fully prefabricated floor slab 13 and the connecting angle steel 2 of the floor slab are leveled with shims. The joint of the wall panels is roughened. After installation, C35 non-shrink fine stone concrete or high-strength grout is poured to fill the gaps and enhance the integrity of the structure.

[0067] The prefabricated floor slabs 13 are connected by pre-embedded steel wire ropes at position 14. Depending on the application location, there are three types of floor slab connections: pure floor slab connections, floor slab connections at H-beams 10, and floor slab connections when the steel beams are staggered left and right. Figures 23-25 As shown, the main difference is the addition of studs or angle steel welded to the upper flange or web of the steel beam as the stress point for the wire rope loop.

[0068] All components are prefabricated in the factory and then transported to the construction site for dry connection using the above method. This ensures structural safety while greatly improving construction efficiency, making it a new type of prefabricated structural system suitable for low-rise rural residential buildings.

[0069] Example

[0070] like Figures 27-29 The diagrams show the application of the prefabricated concrete grid composite exterior wall 12 steel-concrete composite structure system of the present invention in one- and two-story rural residential buildings.

[0071] The house type used in this embodiment is a four-span structure. If other spans are required, only the standardized components need to be added or removed accordingly. The structural system adopts a foundation form of integral cup-shaped foundation for the outer frame combined with rectangular independent foundations inside the structure. The irregular column wall connector 11 and the prefabricated concrete grid composite outer wall 12 are inserted into the cup-shaped foundation one after another and connected by tongue and groove high-strength bolts 9. After the wall is installed and positioned, the gaps are filled with C35 fine stone concrete. The irregular column wall connector 11 and the H-shaped steel beam 10 are connected by steel plates 6 embedded in the wall connector and high-strength bolts 9. Before connection, the H-shaped steel beam 10 is leveled with shims.

[0072] After the H-beam 10 is installed, the fully prefabricated floor slab 13 is installed. The fully prefabricated floor slab 13 is connected to the prefabricated concrete grid composite exterior wall 12, and the fully prefabricated floor slab 13 itself is connected by steel wire ropes. After installation, C35 non-shrink fine stone concrete or high-strength grout is poured to fill the gaps and enhance the integrity of the structure.

[0073] If an H-beam 10 is encountered, the floor slab is connected to the welded studs 8 via steel wire ropes. The foundation, irregular column wall connectors 11, prefabricated concrete grid composite exterior wall 12, and fully prefabricated floor slabs 13 are installed sequentially to form a structural whole. The assembly process for the second floor is similar to that for the first floor.

[0074] Therefore, the present invention adopts the above-mentioned prefabricated concrete grid composite exterior wall steel-concrete composite structure system. The connection method of this system is reasonable in terms of stress and easy to construct. It takes into account the continuity of the stress of vertical components and is based on low-rise residential structures. It proposes a node connection method that is easy to construct quickly. The construction process basically realizes the connection of the whole dry method, which greatly improves the construction efficiency and saves the construction cost.

[0075] 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 or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A prefabricated concrete grid composite exterior wall steel-concrete composite structure system, characterized in that: It includes reinforced concrete and steel structure; the reinforced concrete includes cup-shaped foundations and independent foundations, irregular column wall connectors, prefabricated concrete grid composite exterior walls, and fully prefabricated floor slabs; the steel structure includes H-shaped steel beams, floor slab connecting angle steel, embedded steel plates, high-strength bolt connectors, studs, and embedded steel wire rope sleeves; The structural system adopts the following basic form: the overall cup-shaped foundation of the outer frame is combined with the rectangular independent foundation inside the structure, and the irregular column wall connectors and the prefabricated concrete grid composite outer wall are all inserted into the cup-shaped foundation. The cross-section of the cup opening is set as an inverted trapezoid with a narrow bottom and a wide top. A 50 cm leveling layer is reserved between the bottom of the cup opening and the upper component. The upper component is roughened within the cup opening foundation area. The gap between the cup opening and the component will be filled with C35 fine stone concrete after the wall installation and positioning are completed. The prefabricated floor slab and the prefabricated concrete grid composite exterior wall are connected by steel wire ropes; the prefabricated floor slab has pre-installed anchor bars and floor slab connecting angle steel at the elevation of the prefabricated floor slab, and the prefabricated concrete grid composite exterior wall has pre-installed anchor bars and floor slab connecting angle steel inside the wall. The anchor bars are plugged and welded between the angle steel connecting the floor slab and the anchor bar. The steel wire rope sleeves are pre-embedded in the corresponding positions of the fully prefabricated floor slab and the prefabricated concrete grid composite exterior wall. They are connected by welding studs or continuous connecting bars. The angle steel connecting the fully prefabricated floor slab and the floor slab are leveled by shims. The joint of the wall panels is roughened. After installation, C35 non-shrink fine stone concrete or high-strength grout is poured. The floor slabs of the fully prefabricated floor slabs are connected by pre-embedded steel wire ropes. Depending on the application location, there are three types of floor slab connections: pure floor slab connections, floor slab connections at H-beams, and floor slab connections when the steel beams are staggered on the left and right. The irregular column wall connectors include L-shaped connectors and T-shaped connectors. The irregular column wall connectors are prefabricated as a whole, consisting of the irregular column body and the tongue and groove bolt connection area. The dimensions of the irregular column body are consistent within the same structure, according to the size variation of the matching prefabricated concrete grid composite exterior wall.

2. The prefabricated concrete grid composite exterior wall steel-concrete composite structure system according to claim 1, characterized in that: The tongue and groove bolt connection areas of the prefabricated concrete grid composite exterior wall and the irregular column wall connectors are prefabricated with bolt holes and nut washer recesses. After staggered lap joints, they are connected by high-strength bolts to form a structural whole. The tongue and groove of the irregular column wall connectors is set on the inner side of the structure, while the tongue and groove of the prefabricated concrete grid composite exterior wall is set on the outer side of the structure.

3. The prefabricated concrete grid composite exterior wall steel-concrete composite structure system according to claim 2, characterized in that: When the tongue and groove bolt connection area contains a large-sized hidden structural beam within the high wall of the structural floor, a bolt reinforcement zone is set up, and the bolt spacing in the reinforcement zone is half that in the non-reinforcement zone; the frame structure uses ordinary rectangular reinforced concrete columns, combined with H-shaped steel beams and the outer ring structure to form an overall frame.

4. The prefabricated concrete grid composite exterior wall steel-concrete composite structure system according to claim 2, characterized in that: The embedded steel plate of the irregular column wall connector is connected to the H-beam by high-strength bolts; depending on the span and stress characteristics, it is divided into rigid connection node and hinged connection node; the irregular column wall connector has pre-installed anchor bars inside, and the anchor bars are plugged and welded to the embedded steel plate; the two mutually perpendicular embedded steel plates are connected by welding.

5. The prefabricated concrete grid composite exterior wall steel-concrete composite structure system according to claim 1, characterized in that: The prefabricated concrete grid composite exterior wall is divided into three basic forms depending on the location of the wall: one with only windows, one with only doors, and one without doors or windows.

6. The prefabricated concrete grid composite exterior wall steel-concrete composite structure system according to claim 5, characterized in that: The prefabricated concrete grid composite exterior wall contains a reinforced concrete grid structure composed of hidden beams and columns; lightweight thermal insulation material is embedded in the grid of the reinforced concrete grid structure.

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