Fabricated form-removal-free building structure and construction method

Abstract

The invention provides a fabricated form-removal-free building structure and a construction method, and relates to the field of building construction. The inner wall structure comprises a first inner wall plate, a second inner wall plate and a first net rack arranged between the first inner wall plate and the second inner wall plate. First connecting pieces are embedded in the first inner wall plate and the second inner wall plate respectively; the first net rack is connected with the first connecting piece; the outer wall structure comprises a first outer wall plate, a second outer wall plate and a second net rack arranged between the first outer wall plate and the second outer wall plate. Second connecting pieces are pre-buried in the first external wall panel and the second external wall panel respectively; the second net rack is connected with the second connecting piece; the top plate structure is formed by overlapping a plurality of overlapping plates, overlapping grooves are formed in the two ends of each overlapping plate respectively, and the adjacent overlapping grooves of every two adjacent overlapping plates are matched with each other. The construction efficiency of the building structure can be greatly improved, the construction cost is reduced, meanwhile, the overall stability of the building structure can be improved through cast-in-place, the transportation requirement can be lowered, and transportation is convenient.

Description

Technical Field

[0001] The present invention relates to the field of building construction, and in particular to an assembled formwork-free building structure and a construction method. Background Art

[0002] Traditional formwork casting construction technology requires formwork and steel bar tying at the construction site. At the same time, it is necessary to cast columns, shear walls, etc. first, and then remove the formwork around the columns after the concrete solidifies and reaches a certain strength; then re-formwork and steel bar tying are carried out on site before the upper beams and floor slabs can be cast. The construction method of traditional formwork casting construction technology has the problems of low construction efficiency, complicated process and long construction period.

[0003] Prefabricated buildings refer to buildings that transfer a large amount of on-site work in traditional construction methods to factories, where building components and accessories (such as floor slabs, wall panels, columns, beams, etc.) are processed and manufactured in factories, transported to construction sites, and assembled and installed on site through reliable connection methods.

[0004] At present, prefabricated buildings mainly use prefabricated reinforced concrete components. Traditional prefabricated reinforced concrete components have the disadvantage of being heavy and have high requirements for the transportation and installation of prefabricated reinforced concrete components. On the other hand, prefabricated reinforced concrete components are generally connected in the form of constrained grout anchors or sleeve grouting, which has high technical requirements, and the architectural integrity of prefabricated buildings is still poor compared to on-site formwork casting buildings. Summary of the invention

[0005] The purpose of the present invention is to provide an assembled formwork-free building structure and a construction method, which can prefabricate inner walls, outer walls and top plates respectively and then transport them to the site for cast-in-place installation, with low transportation weight and convenient transportation; and the structures such as the inner walls, outer walls and top plates can be split into multiple independent structures for prefabrication and assembly, which greatly improves the prefabrication efficiency and construction efficiency, and the multiple independent structures can be set to corresponding or different materials according to the architectural design requirements and specifications, thereby expanding the applicability of the building.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] An assembled formwork-free building structure, comprising an inner wall structure, an outer wall structure and a top plate structure that are assembled and connected to each other;

[0008] The inner wall structure comprises a first inner wall panel, a second inner wall panel and a first grid arranged between the first inner wall panel and the second inner wall panel; first connecting members are respectively embedded in the first inner wall panel and the second inner wall panel; the first grid is connected to the first connecting member;

[0009] The exterior wall structure includes a first exterior wall panel, a second exterior wall panel, and a second grid disposed between the first exterior wall panel and the second exterior wall panel; second connecting members are pre-buried inside the first exterior wall panel and the second exterior wall panel respectively; the second grid is connected to the second connecting member;

[0010] The top plate structure is formed by stacking a plurality of stacking plates, and stacking grooves are respectively provided at both ends of the stacking plates, and adjacent stacking grooves of two adjacent stacking plates are adapted to each other.

[0011] Furthermore, in the present invention, the first inner wall panel, the second inner wall panel, the first outer wall panel, the second outer wall panel and the composite panel all include concrete panels, cement pressure panels or aluminum honeycomb panels.

[0012] Furthermore, in the present invention, the first exterior wall panel and / or the second exterior wall panel further comprises a functional panel, wherein the functional panel comprises a thermal insulation panel and / or a sound insulation panel.

[0013] Furthermore, in the present invention, a decorative surface layer is provided on a side of the first inner wall panel and the second inner wall panel away from the first grid and a side of the second outer wall panel away from the second grid.

[0014] Furthermore, in the present invention, the first grid and the second grid both include a steel grid, a steel frame, a light steel grid or a carbon fiber grid.

[0015] Furthermore, in the present invention, a triangular steel frame is provided on the top of the composite plate, and the triangular steel frame is used to be connected to the top truss; and a decorative surface layer is provided on the side of the composite plate away from the triangular steel frame.

[0016] Furthermore, in the present invention, the first connecting member and the second connecting member are made of metal, resin or plastic.

[0017] A construction method for an assembled formwork-free building structure comprises the following steps:

[0018] Prepare a first interior wall panel and a second interior wall panel respectively and embed a first connecting member in the first interior wall panel and the second interior wall panel respectively; prepare a first grid at the same time; place the first grid between the first interior wall panel and the second interior wall panel and connect the first connecting member to obtain an interior wall structure;

[0019] Prepare a first exterior wall panel and a second exterior wall panel respectively and embed a second connecting piece in the first exterior wall panel and the second exterior wall panel respectively; prepare a second grid at the same time; place the second grid between the first exterior wall panel and the second exterior wall panel and connect the second connecting piece to obtain an exterior wall structure;

[0020] Prepare a plurality of overlapping plates of the same or different sizes, and respectively set overlapping grooves at both ends of the overlapping plates;

[0021] The inner wall structure and the outer wall structure are transported to the construction site for installation, and concrete is poured into the first grid and the second grid respectively;

[0022] The plurality of composite plate structures are transported to the construction site, overlapped and spliced, and installed on the top of the inner wall structure and the outer wall structure.

[0023] Furthermore, in the present invention, the steps of preparing the first interior wall panel and the second interior wall panel respectively and pre-embedding the first connecting member in the first interior wall panel and the second interior wall panel respectively include:

[0024] According to the architectural design requirements, the first interior wall panel and the second interior wall panel are respectively prepared using the same or different materials, and a first connecting member is pre-embedded inside the first interior wall panel and the second interior wall panel;

[0025] According to architectural design requirements, a decorative surface layer is attached or coated on the first interior wall panel and / or the second interior wall panel on a side away from the first connecting member.

[0026] Furthermore, in the present invention, the steps of preparing the first exterior wall panel and the second exterior wall panel respectively and pre-embedding the second connecting member in the first exterior wall panel and the second exterior wall panel respectively include:

[0027] According to the requirements of the building design, the first exterior wall panel and the second exterior wall panel are prepared respectively using the same or different materials, and a functional panel is arranged in the second exterior wall panel; wherein the functional panel includes a heat insulation panel and / or a sound insulation panel;

[0028] Pre-embedding second connecting members in the first exterior wall panel and the second exterior wall panel respectively;

[0029] According to architectural design requirements, a decorative surface layer is attached or coated on the side of the second exterior wall panel away from the second connecting member.

[0030] The present invention has at least the following advantages or beneficial effects:

[0031] The present invention divides the inner wall structure and the outer wall structure into three independent components by arranging them to be connected by two prefabricated wall panels and a grid in the middle, which can be pre-prepared and then connected respectively, thereby improving the prefabrication efficiency; and forms a hollow cast-in-place space through the above-mentioned structural design, which can be transported to the construction site for cast-in-place, while reducing the transportation weight and making transportation convenient; by arranging the top plate structure to be composed of a plurality of superimposed plates, the superimposed plates are adapted to fit each other through superimposed grooves opened at the ends, which can improve the fit between the superimposed plates and avoid direct splicing between the vertical end faces of the traditional splicing plates resulting in large gaps; by prefabricating the inner wall structure, the prefabricated outer wall structure and the prefabricated top plate structure, they are transported to the construction site for cast-in-place and hoisting respectively, without demoulding and plastering, which can greatly improve the construction efficiency of the building structure and reduce the construction cost; at the same time, casting in situ can improve the overall stability of the building structure, and can also reduce the transportation requirements and facilitate transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 A side sectional view of an inner wall structure provided in an embodiment of the present application;

[0034] Figure 2 A side sectional view of an exterior wall structure provided in an embodiment of the present application;

[0035] Figure 3 A front view of the top plate structure provided in an embodiment of the present application;

[0036] Figure 4 A flowchart of the construction method steps of an assembled formwork-free building structure provided in an embodiment of the present application.

[0037] Icons: 11-first interior wall panel, 12-second interior wall panel, 13-first grid, 14-first connecting piece, 21-first exterior wall panel, 22-second exterior wall panel, 23-second grid, 24-second connecting piece, 25-functional panel, 26-decorative surface layer, 3-composite panel, 31-composite groove, 32-triangular steel frame. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Example

[0041] Please refer to Figure 1-Figure 3 , which is a schematic diagram of the structure of an assembled formwork-free building structure according to an embodiment of the present invention;

[0042] This embodiment provides an assembled formwork-free building structure, which includes an inner wall structure, an outer wall structure and a top plate structure that are assembled and connected to each other;

[0043] The inner wall structure includes a first inner wall panel 11, a second inner wall panel 12, and a first grid 13 disposed between the first inner wall panel 11 and the second inner wall panel 12; first connecting members 14 are pre-buried in the first inner wall panel 11 and the second inner wall panel 12 respectively; the first grid 13 is connected to the first connecting member 14;

[0044] The exterior wall structure includes a first exterior wall panel 21, a second exterior wall panel 22, and a second grid 23 disposed between the first exterior wall panel 21 and the second exterior wall panel 22; second connecting members 24 are pre-buried in the first exterior wall panel 21 and the second exterior wall panel 22 respectively; the second grid 23 is connected to the second connecting member 24;

[0045] The top plate structure is formed by stacking a plurality of stacking plates 3 , and stacking grooves 31 are respectively provided at both ends of the stacking plates 3 , and the adjacent stacking grooves 31 of two adjacent stacking plates 3 are adapted to each other.

[0046] Next, the assembled formwork-free building structure of this exemplary embodiment will be further described.

[0047] In some embodiments of the present application, reference Figure 1The above-mentioned inner wall structure includes a first inner wall panel 11, a second inner wall panel 12 and a first grid 13 arranged between the first inner wall panel 11 and the second inner wall panel 12; first connecting members 14 are pre-buried in the first inner wall panel 11 and the second inner wall panel 12 respectively; the first grid 13 is connected to the first connecting member 14. That is, the inner wall structure is composed of three independent components to form a hollow wall structure, wherein the hollow part is a grid structure, which can be transported to the construction site for cast-in-place concrete. Through the above design, the dead weight of the wall structure can be reduced and transportation is convenient; the three independent components can be pre-prepared and then connected, that is, the first inner wall panel 11 and the second inner wall panel 12 and the first grid 13 are prepared independently, and the first grid 13 is connected between the first inner wall panel 11 and the second inner wall panel 12 after being built, and connected with the pre-buried first connecting member 14, which can greatly improve the prefabrication efficiency; through the cast-in-place concrete method, compared with the traditional prefabricated building structure, it can improve the connection stability with the ground cement base, thereby improving the overall stability of the building structure; compared with the existing support model casting wall, there is no need to remove the mold, plastering and other operations, which further improves the construction efficiency.

[0048] As a preferred embodiment, the first interior wall panel 11 and the second interior wall panel 12 can be made of structures or materials such as fine stone concrete panels, cement pressure panels or aluminum honeycomb panels according to the architectural design requirements, and the thickness of the first interior wall panel 11 and the second interior wall panel 12 can be the same or different, and can be designed according to the architectural structure layout.

[0049] As a preferred implementation, the first grid 13 can be made of materials such as a steel grid, a steel frame, a light steel grid or a carbon fiber grid, depending on the specific requirements of the building structure design. In particular, for some lightweight wall panels, a carbon fiber grid can be used.

[0050] As a preferred embodiment, the first connecting member 14 can be a metal connecting member, a resin connecting member or a plastic connecting member, which can be determined according to the material of the first grid 13. For example, if the material of the first grid 13 is a steel grid, a steel frame, etc., the first connecting member 14 can be a metal connecting member. If the material of the first grid 13 is a carbon fiber grid, etc., the first connecting member 14 can be a resin connecting member or a plastic connecting member.

[0051] As a preferred embodiment, the first inner wall panel 11 and the second inner wall panel 12 can be covered or coated with a decorative surface layer 26 on one side away from the first grid 13, wherein the decorative surface layer 26 can be but not limited to stone, paint or wallpaper, etc. The decorative surface layer 26 can be integrally provided at the time of delivery according to customer needs, and can be used after being transported to the site for pouring, without the need for subsequent decoration, thereby shortening the construction period.

[0052] In some embodiments of the present application, reference Figure 2The above-mentioned external wall structure includes a first external wall panel 21, a second external wall panel 22 and a second grid 23 disposed between the first external wall panel 21 and the second external wall panel 22; second connecting members 24 are respectively embedded in the first external wall panel 21 and the second external wall panel 22; and the second grid 23 is connected to the second connecting member 24. That is, the external wall structure is also composed of three independent components, forming a hollow wall structure, wherein the hollow part is a grid structure, which can also be transported to the construction site for cast-in-place concrete. Through the above design, the dead weight of the wall structure can be reduced and transportation is convenient; the three independent components can be pre-prepared and then connected, that is, the first exterior wall panel 21 and the second exterior wall panel 22 and the second grid 23 are prepared independently, and the second grid 23 is connected between the first exterior wall panel 21 and the second exterior wall panel 22 after being built, and connected with the pre-buried second connecting piece 24, which can greatly improve the prefabrication efficiency; through the cast-in-place concrete method, compared with the traditional prefabricated building structure, it can improve the connection stability with the ground cement base, thereby improving the overall stability of the building structure; compared with the existing support model casting wall, there is no need for demolding, plastering and other operations, which further improves the construction efficiency.

[0053] As a preferred embodiment, the first exterior wall panel 21 and the second exterior wall panel 22 can be made of structures or materials such as fine stone concrete panels, cement pressure panels or aluminum honeycomb panels according to the architectural design requirements, and the thickness of the first exterior wall panel 21 and the second exterior wall panel 22 can be the same or different, and can be designed according to the architectural structure layout.

[0054] As a preferred implementation, the second grid 23 can be made of materials such as a steel grid, a steel frame, a light steel grid or a carbon fiber grid, depending on the specific requirements of the building structure design. In particular, a carbon fiber grid can be used for some lightweight wall panels.

[0055] As a preferred embodiment, the second connecting member 24 may be a metal connecting member, a resin connecting member or a plastic connecting member, which may be determined according to the material of the second grid 23. For example, if the material of the second grid 23 is a steel grid, a steel frame, etc., the second connecting member 24 may be a metal connecting member. If the material of the second grid 23 is a carbon fiber grid, etc., the second connecting member 24 may be a resin connecting member or a plastic connecting member.

[0056] As a preferred embodiment, the first and second exterior wall panels 21 and 22 can be covered or coated with a decorative surface layer 26 on one side away from the second grid 23, wherein the decorative surface layer 26 can be, but is not limited to, stone, paint or wallpaper, etc. The decorative surface layer 26 can be integrated with the panel when it leaves the factory according to customer needs, and can be used after being transported to the site for pouring, without the need for subsequent decoration, thus shortening the construction period.

[0057] As a preferred embodiment, the first exterior wall panel 21 and / or the second exterior wall panel 22 further include a functional panel 25, wherein the functional panel 25 includes a heat preservation panel and / or a sound insulation panel. Since the exterior wall structure is the exterior wall of a building, it is located outside the building, and its protective function needs to have functions such as waterproofing, moisture-proofing, heat preservation or sound insulation. Therefore, a functional panel 25 can be added to the first exterior wall panel 21 or the second exterior wall panel 22, and one or more corresponding functional panels 25 can be added as needed to improve the performance of the exterior wall structure. When a heat preservation panel is provided, the exterior wall structure has energy-saving and heat-insulating effects.

[0058] It should be noted that the above-mentioned first exterior wall panel 21 and the second exterior wall panel 22 can be designed to have corresponding dimensions of the overall wall according to design requirements, and can also be designed to be spliced ​​left and right or up and down to form an overall wall surface. In the splicing type, the first grid 13 or the second grid 23 therein is designed to be a grid structure extending outward, and the grid structure between two adjacent spliced ​​wall panels can be overlapped, thereby achieving rapid positioning when splicing left and right or up and down, and finally the overall casting is carried out.

[0059] It should also be noted that the top, bottom and sides of the first exterior wall panel 21 and the second exterior wall panel 22 are provided with anchors for anchoring and connecting with the top plate, the foundation and the adjacent vertical wall.

[0060] In some embodiments of the present application, reference Figure 3 The top plate structure is formed by stacking a plurality of stacking plates 3, and stacking grooves 31 are respectively provided at both ends of the stacking plates 3, and the adjacent stacking grooves 31 of two adjacent stacking plates 3 are adapted to each other. Specifically, the stacking grooves 31 are horizontal grooves opened at the top or bottom of both ends of the stacking plates 3, that is, stepped grooves are formed at their ends, and the stepped grooves of two adjacent stacking plates 3 are one up and one down to fit each other. Through the above structural design, a plurality of stacking plates 3 can be independently prefabricated and then transported to the site for stacking and splicing. The stacking and splicing method can improve the fit and avoid excessive splicing gaps.

[0061] As a preferred embodiment, a triangular steel bar frame 32 is provided on the top of the composite board 3, and the triangular steel bar frame 32 is used to connect with the top truss; a decorative surface layer 26 is provided on the side of the composite board 3 away from the triangular steel bar frame 32, and the decorative surface layer 26 includes but is not limited to decorative materials such as wall paint, wallpaper, stone or diatom mud. The decorative surface layer 26 can be pre-set at the factory according to customer requirements, and can be used after installation without the need for later decoration, which can greatly shorten the construction period.

[0062] Reference Figure 4 The present application also provides a method for constructing an assembled formwork-free building structure, comprising the following steps:

[0063] S110, prepare a first inner wall panel 11 and a second inner wall panel 12 respectively and embed a first connecting member 14 in the first inner wall panel 11 and the second inner wall panel 12 respectively; prepare a first grid 13 at the same time; place the first grid 13 between the first inner wall panel 11 and the second inner wall panel 12 and connect it to the first connecting member 14 to obtain an inner wall structure;

[0064] S120, prepare a first exterior wall panel 21 and a second exterior wall panel 22 respectively and embed a second connecting member 24 in the first exterior wall panel 21 and the second exterior wall panel 22 respectively; prepare a second grid 23 at the same time; place the second grid 23 between the first exterior wall panel 21 and the second exterior wall panel 22 and connect it to the second connecting member 24 to obtain an exterior wall structure;

[0065] S130, preparing a plurality of overlapping plates 3 of the same or different sizes, and setting overlapping grooves 31 at both ends of the overlapping plates 3;

[0066] S140, transporting the inner wall structure and the outer wall structure to the construction site for installation, and pouring concrete into the first grid 13 and the second grid 23, respectively;

[0067] S150, transporting multiple composite panels 3 structures to the construction site, overlapping and splicing them, and installing them on the top of the inner wall structure and the outer wall structure.

[0068] As a preferred embodiment, the step of "respectively preparing the first interior wall panel 11 and the second interior wall panel 12 and pre-embedding the first connecting member 14 in the first interior wall panel 11 and the second interior wall panel 12" in the above step S110 specifically includes:

[0069] According to the architectural design requirements, the first inner wall panel 11 and the second inner wall panel 12 are respectively prepared with the same or different materials, and the first connecting member 14 is embedded in the first inner wall panel 11 and the second inner wall panel 12;

[0070] According to architectural design requirements, a decorative surface layer 26 is attached or coated on the side of the first inner wall panel 11 and / or the second inner wall panel 12 away from the first connecting member 14 .

[0071] As a preferred embodiment, the step of "respectively preparing the first exterior wall panel 21 and the second exterior wall panel 22 and pre-embedding the second connecting member 24 in the first exterior wall panel 21 and the second exterior wall panel 22" in the above step S120 specifically includes:

[0072] According to the architectural design requirements, the first exterior wall panel 21 and the second exterior wall panel 22 are respectively prepared with the same or different materials, and a functional panel 25 is arranged in the second exterior wall panel 22; wherein the functional panel 25 includes a heat insulation panel and / or a sound insulation panel;

[0073] The second connecting member 24 is embedded in the first outer wall panel 21 and the second outer wall panel 22 respectively;

[0074] According to architectural design requirements, a decorative surface layer 26 is attached or coated on the side of the second exterior wall panel 22 away from the second connecting member 24 .

[0075] As a preferred embodiment, the step of "preparing multiple composite plates 3 of the same or different sizes, and setting composite grooves 31 at both ends of the composite plates 3" in the above-mentioned step S130 also includes: sticking or coating a decorative surface layer 26 on the bottom of the composite plate 3 according to the architectural design requirements, and pre-embedding a triangular steel frame 32 on the top of the composite plate 3 to connect with the top truss of the building.

[0076] As a preferred implementation, the specific steps of the above step S140 include: according to the building layout design, hoisting the inner wall structure and the outer wall structure to the corresponding positions respectively, and fixing them to the foundation through anchors, connecting the adjacent inner wall structures and outer wall structures through anchors, and then pouring concrete into the first grid 13 and the second grid 23 to form the inner wall and the outer wall.

[0077] As a preferred implementation, the specific steps of the above step S150 include: overlapping and splicing multiple composite plates 3 at the construction site, and installing them on the top of the inner wall and the outer wall, connecting them to the top truss through the triangular steel bars on the top, and connecting them to the top of the inner wall and the outer wall through anchors to form a top plate.

[0078] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An assembled formwork-free building structure, characterized in that: The building structure comprises an inner wall structure, an outer wall structure and a top plate structure which are assembled and connected to each other; The inner wall structure comprises a first inner wall panel, a second inner wall panel and a first grid arranged between the first inner wall panel and the second inner wall panel; first connecting members are respectively embedded in the first inner wall panel and the second inner wall panel; the first grid is connected to the first connecting member; The exterior wall structure includes a first exterior wall panel, a second exterior wall panel, and a second grid disposed between the first exterior wall panel and the second exterior wall panel; second connecting members are pre-buried inside the first exterior wall panel and the second exterior wall panel respectively; the second grid is connected to the second connecting member; The top plate structure is formed by stacking a plurality of stacking plates, and stacking grooves are respectively provided at both ends of the stacking plates, and adjacent stacking grooves of two adjacent stacking plates are adapted to each other.

2. The assembled formwork-free building structure according to claim 1 is characterized in that: The first inner wall panel, the second inner wall panel, the first outer wall panel, the second outer wall panel and the composite panel all include concrete panels, cement pressure panels or aluminum honeycomb panels.

3. The assembled formwork-free building structure and construction method according to claim 2 is characterized in that: The first exterior wall panel and / or the second exterior wall panel further comprises a functional panel, wherein the functional panel comprises a thermal insulation panel and / or a sound insulation panel.

4. The assembled formwork-free building structure according to claim 1 or 3, characterized in that: A decorative surface layer is provided on a side of the first inner wall panel and the second inner wall panel away from the first grid and a side of the second outer wall panel away from the second grid.

5. The assembled formwork-free building structure according to claim 1 or 3, characterized in that: The first grid and the second grid both include a steel grid, a steel frame, a light steel grid or a carbon fiber grid.

6. The assembled formwork-free building structure according to claim 1 is characterized in that: A triangular steel frame is provided on the top of the composite plate, and the triangular steel frame is used to be connected to the top truss; a decorative surface layer is provided on one side of the composite plate away from the triangular steel frame.

7. The assembled formwork-free building structure according to claim 1 is characterized in that: The first connecting member and the second connecting member are made of metal, resin or plastic.

8. A construction method for an assembled formwork-free building structure, characterized in that: The steps include: Prepare a first inner wall panel and a second inner wall panel respectively and embed a first connecting member in the first inner wall panel and the second inner wall panel respectively; and prepare a first grid at the same time; Placing the first grid between the first inner wall panel and the second inner wall panel and connecting them with the first connecting member to obtain an inner wall structure; Prepare a first exterior wall panel and a second exterior wall panel respectively and embed a second connecting member in the first exterior wall panel and the second exterior wall panel respectively; Meanwhile, a second grid is prepared; the second grid is placed between the first exterior wall panel and the second exterior wall panel and connected to the second connecting member to obtain an exterior wall structure; Prepare a plurality of overlapping plates of the same or different sizes respectively, and set overlapping grooves at both ends of the overlapping plates respectively; The inner wall structure and the outer wall structure are transported to the construction site for installation, and concrete is poured into the first grid and the second grid respectively; The plurality of composite plate structures are transported to the construction site, overlapped and spliced, and installed on the top of the inner wall structure and the outer wall structure.

9. The construction method according to claim 8, characterized in that: The steps of preparing the first inner wall panel and the second inner wall panel respectively and pre-embedding the first connecting member in the first inner wall panel and the second inner wall panel respectively include: According to the architectural design requirements, the first inner wall panel and the second inner wall panel are respectively prepared by using the same or different materials, and the first connecting member is embedded in the first inner wall panel and the second inner wall panel; According to architectural design requirements, a decorative surface layer is attached or coated on the first interior wall panel and / or the second interior wall panel on a side away from the first connecting member.

10. The construction method according to claim 8, characterized in that: The steps of preparing the first exterior wall panel and the second exterior wall panel respectively and pre-embedding the second connecting member in the first exterior wall panel and the second exterior wall panel respectively include: According to the requirements of the building design, the first exterior wall panel and the second exterior wall panel are prepared respectively using the same or different materials, and a functional panel is arranged in the second exterior wall panel; wherein the functional panel includes a heat insulation panel and / or a sound insulation panel; Pre-embedding second connecting members in the first exterior wall panel and the second exterior wall panel respectively; According to architectural design requirements, a decorative surface layer is attached or coated on the side of the second exterior wall panel away from the second connecting member.

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