Prefabricated wall module unit, assembled composite wall and construction method

Abstract

A prefabricated wall module unit, an assembled composite wall and a construction method, comprising a prefabricated wall module unit, a connection with a lower floor slab or foundation, a connection with an upper floor slab or beam and a connection between prefabricated wall module units. The assembled composite wall is an integrated composite wall formed by connecting factory prefabricated wall module units through connecting pieces between walls. The prefabricated wall module unit of the present invention can be processed and manufactured in a standardized manner in a factory, and its size can be customized according to site and transportation conditions. Moreover, it is fully assembled on site without the need for casting, thereby improving the installation quality and efficiency. The assembled composite wall realizes full dry installation construction between prefabricated wall module units through different connecting pieces, and the prefabricated wall module units used ensure the structural safety performance and thermal insulation performance of the wall.

Description

Technical Field

[0001] The present invention relates to the field of prefabricated buildings, and in particular to a prefabricated wall module unit, an assembled composite wall and a construction method. Background Art

[0002] There are the following problems in prefabricated wall technology:

[0003] 1. At present, the prefabricated walls in factories are often divided by the size of a bay or depth, but they are heavy and have high production costs. In addition, they need to be transported by large transport vehicles, which has high requirements for road conditions. At the same time, long-distance transportation will also increase construction costs;

[0004] 2. It is difficult to handle the joints after installation, and they are prone to cracking after a period of time;

[0005] 3. The thermal insulation effect of the external panels of traditional light steel structure buildings is average, and it will also cause a sense of emptiness. On the other hand, at present, light steel-filled concrete walls are mostly poured on the construction site, which goes against the original intention of realizing building industrialization and reducing on-site operations. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention proposes a prefabricated wall module unit, an assembled composite wall and a construction method. The prefabricated wall module unit of the present invention can achieve small-scale production and lightweight transportation. After on-site assembly, the entire composite wall has no weak joints to prevent cracking. It not only meets the requirements of assembled buildings, simplifies the production process, reduces production costs, but also ensures the overall strength and thermal insulation performance of the wall, and also improves the installation quality and efficiency.

[0007] To achieve the above object, the present invention proposes the following technical solutions:

[0008] The present invention includes an embodiment, a prefabricated wall module unit, including a wall frame, a structural panel 6 fixed on the wall frame and closing the two opening sides of the wall frame, and a filler 12 filled in the closed space formed by the wall frame and the structural panel 6. The two sides of the wall frame are assembly connection sides. The structural panel is fixed on the wall frame. On the one hand, it serves as a structural member to support the skin, and on the other hand, it also serves as a template. When the filler is a wet material such as a lightweight cement-based material, it serves as a template to ensure the integrity of the structure.

[0009] In the above embodiment, a keel is fixed inside the wall frame to form a window frame or door frame, and a window or door opening is provided on the structural panel 6 at a position corresponding to the window frame or door frame. In this way, at a position where a door opening or window is required, a prefabricated wall module unit with a preset door and window opening can be directly used to ensure structural strength and facilitate construction.

[0010] As an implementation example 1 of a prefabricated wall module unit, the wall skeleton includes an outer frame composed of a U-shaped keel 14 and a plurality of vertically arranged C-shaped keels 13 arranged inside the outer frame to support the outer frame. The C-shaped keels 13 are arranged in parallel along the wall direction inside the outer frame. The open sides of the U-shaped keels 14 constituting the outer frame are all facing the wall and are arranged opposite to each other in pairs. The structural panel 6 is connected and fixed to the U-shaped keels 14 and the C-shaped keels 13 by screws.

[0011] As an implementation method 2 of the prefabricated wall module unit, the wall skeleton includes an outer frame composed of I-shaped keels 5 arranged on both sides and U-shaped keels 14 arranged on both sides of the top and bottom, and a plurality of vertically arranged C-shaped keels 13 arranged in the outer frame to support the outer frame. The C-shaped keels 13 are arranged in parallel along the wall direction in the outer frame. The I-shaped keels 5 on both sides of the wall skeleton have one open side facing the wall and are arranged opposite to each other, and the other open side faces the outside of the wall to form a connecting end. The structural panel 6 is connected and fixed to the I-shaped keel 5, the U-shaped keel 14 and the C-shaped keel 13 by screws.

[0012] In the above embodiment, the I-shaped keel 5, the U-shaped keel 14 and the C-shaped keel 13 are all cold-formed steel keels.

[0013] In the above embodiment, the structural panel 6 is an OSB board, a gypsum board, a cement fiber board, a calcium silicate board or a steel board.

[0014] In the above embodiment, the filler 12 is a lightweight cement-based or gypsum-based filler or thermal insulation rock wool.

[0015] The present invention also includes an assembled composite wall, which is formed by connecting multiple prefabricated wall module units 4 of embodiment 1 laterally to each other, and adjacent prefabricated wall module units 4 are connected to each other by I-shaped connectors 7, and the sizes of the two opening sides of the I-shaped connector 7 match the thickness of the prefabricated wall module units 4. The prefabricated wall module units 4 are clamped in the openings of the I-shaped connectors 7, and the I-shaped connectors 7 are connected and fixed to the U-shaped keels 14 in the prefabricated wall module units 4 by screws.

[0016] In the above embodiment, the joint between the prefabricated wall module unit 4 and the I-shaped connector 7 is filled with building sealant 11 .

[0017] As another embodiment of the assembled composite wall, it is formed by connecting multiple prefabricated wall module units 4 of embodiment 2 horizontally to each other, and adjacent prefabricated wall module units 4 are connected to each other through rectangular steel pipe connectors 15. The opening sides of the connecting ends of the I-shaped keels 5 of adjacent prefabricated wall module units 4 are connected to each other to form a clamping area, and the clamping area matches the size of the rectangular steel pipe connector 15. The rectangular steel pipe connector 15 is clamped in the clamping area, and the rectangular steel pipe connector 15 is connected and fixed to the I-shaped keel 5 by screws.

[0018] In the above embodiment, the joints between the structural panels 6 of the adjacent prefabricated wall module units 4 are filled with building sealant 11 .

[0019] In the above two embodiments, the prefabricated wall module unit 4 is connected to the lower floor or foundation 2 through the bottom connecting member 3, and the bottom connecting member 3 is a U-shaped steel with an opening size matching the thickness of the prefabricated wall module unit 4. The bottom connecting member 3 is fixed to the lower floor or foundation 2 by bolts pre-embedded in the lower floor or foundation 2.

[0020] In the above two embodiments, a leveling layer and a moisture-proof layer are provided in sequence between the upper surface of the lower floor slab or foundation 2 and the bottom connecting member 3 .

[0021] In the above two embodiments, a buffer layer 10 is laid inside the bottom connecting member 3 for supporting the prefabricated wall module unit 4 and buffering wall deformation. The thickness of the buffer layer 10 is 2-5 mm higher than the embedded bolts.

[0022] In the above two embodiments, the bottom connecting member 3 and the lower floor slab or foundation 2 are further connected to each other by an angle steel connecting member 1 to reinforce the connection between the bottom connecting member 3 and the lower floor slab or foundation 2 .

[0023] In the above two embodiments, the prefabricated wall module unit 4 is connected to the upper floor or beam 9 through a top connector 8, and the top connector 8 includes a cover plate and two parallel ear plates vertically fixed to the bottom of the cover plate, a spacing is provided between the edge of the cover plate and the ear plate to form a cover plate fixing area, and bolt holes are provided on the cover plate fixing area and the ear plate, and the spacing between the two ear plates matches the thickness of the prefabricated wall module unit 4, and the top connector 8 is fixed to the top of the prefabricated wall module unit 4 through the ear plate, and the prefabricated wall module unit 4 is fixed to the upper floor or beam 9 through the top connector 8.

[0024] The present invention also includes a method for constructing a prefabricated wall module unit, first assembling and fixing the wall frame, laying the wall frame flat, installing and fixing a structural panel 6 on an open side of the wall frame, closing the opening on this side of the wall frame, and then turning the wall frame over and laying it flat, so that the side on which the structural panel 6 is installed is located at the bottom, and the other open side of the wall frame is naturally facing upward to form a filling port, and then filling the cavity formed by the wall frame and the structural panel 6 with a filler 12 through the filling port, and finally closing the filling port through another structural panel 6.

[0025] In the above embodiment, if the filler 12 is a wet material, the structural panel 6 is installed to close the filling port before the filler 12 solidifies, and after the installation is completed, the prefabricated wall module unit 4 is sent to the curing room for curing.

[0026] In the above embodiment, the structural panel is an OSB board, a gypsum board, a cement fiber board, a calcium silicate board, a plywood or a steel plate.

[0027] In the above implementation manner, the filler is lightweight concrete or lightweight thermal insulation mortar or lightweight gypsum-based filler or thermal insulation rock wool.

[0028] By adopting the above-mentioned implementation mode, the present invention has the following advantages:

[0029] 1. The present invention adopts a prefabricated wall module unit. On the one hand, this structure ensures the structural safety and thermal insulation performance of the wall. On the other hand, the prefabricated wall module unit can be standardized and manufactured in the factory. The size can be customized according to the site and transportation conditions. Moreover, the on-site full assembly construction does not require pouring, which improves the installation quality and efficiency.

[0030] 2. The present invention also discloses an assembled composite wall, which is assembled by the above-mentioned prefabricated wall module units. The assembled composite wall realizes full dry installation construction between the prefabricated wall module units through I-shaped connectors or rectangular steel pipe connectors according to the different connection end structures of the composite wall module units, so that the whole assembled composite wall has no weak joints, preventing cracking, and greatly improving the installation quality and installation efficiency;

[0031] 3. The present invention also discloses a method for constructing a prefabricated wall module unit. This method uses a horizontal manner to fill the wall with wet material, which can avoid the squeezing and bulging of the panel caused by vertical grouting of the wall, improve the pouring density of the filling material, and ensure the overall strength and thermal insulation performance of the wall.

[0032] In summary, the present invention ensures that the entire composite wall has no weak joints and prevents cracking, which not only meets the requirements of prefabricated buildings, simplifies the production process, reduces production costs, but also ensures the overall strength and thermal insulation performance of the wall, while also improving the installation quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a cross-sectional view of Example 1 of the prefabricated wall module unit of the present invention.

[0034] Figure 2 To adopt Figure 1 Schematic diagram of an assembled composite wall structure formed by splicing prefabricated wall module units of the structure.

[0035] Figure 3 This is a structural diagram of a prefabricated wall module unit with windows according to the present invention.

[0036] Figure 4 for Figure 2 A large sample image of point A in the middle.

[0037] Figure 5 Schematic diagram of the bottom connecting member of the present invention.

[0038] Figure 6 Schematic diagram of the top connecting piece of the present invention.

[0039] Figure 7 Schematic diagram of the angle steel connector of the present invention.

[0040] Figure 8 The present invention adopts Figure 1 Large-scale drawing of the I-shaped connections between the prefabricated wall module units of the structure.

[0041] Fig. 9 It is a cross-sectional view of Example 2 of the prefabricated wall module unit of the present invention.

[0042] Fig.10 To adopt Fig. 9 Schematic diagram of an assembled composite wall structure formed by splicing prefabricated wall module units of the structure.

[0043] Fig.11 The present invention adopts Fig. 9 Large-scale drawing of the I-shaped connections between the prefabricated wall module units of the structure.

[0044] In the attached drawings, 1. Angle steel connector, 2. Lower floor or foundation, 3. Bottom connector, 4. Prefabricated wall module unit, 5. I-shaped keel, 6. Structural panel, 7. I-shaped connector, 8. Top connector, 9. Upper floor or beam, 10. Buffer layer, 11. Building sealant, 12. Filler, 13. C-shaped keel, 14. U-shaped keel, 15. Rectangular steel pipe connector. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present invention are described clearly and completely below in conjunction with the accompanying drawings, but the described embodiments are only part of the present invention and not all of them. All other embodiments obtained based on the embodiments of the present invention without creative work belong to the protection scope of the present invention.

[0046] In order to better understand the present invention, two examples are now proposed to explain in detail:

[0047] Embodiment 1:

[0048] like Figure 1 A prefabricated wall module unit comprises a wall frame, a structural panel 6 fixed on the wall frame and closing two opening sides of the wall frame, and a filler 12 filled in a closed space formed by the wall frame and the structural panel 6. The wall frame comprises an outer frame composed of U-shaped keels 14 and a plurality of vertically arranged C-shaped keels 13 arranged in the outer frame to support the outer frame. The C-shaped keels 13 are arranged in parallel along the wall direction in the outer frame. Four U-shaped keels 14 are connected and fixed in sequence end to end to form a rectangular outer frame. The C-shaped keels 13 are fixed between the top U-shaped keel 14 and the bottom U-shaped keel 14 to play a supporting role. The opening sides of the U-shaped keels 14 constituting the outer frame are all facing the wall and are arranged opposite to each other in pairs. The structural panel 6 is connected and fixed to the U-shaped keels 14 and the C-shaped keels 13 by screws.

[0049] like Figure 3 As shown in the figure, as another structural form of the prefabricated wall module unit, a keel is fixed inside the wall frame to form a window frame or door frame, and a window or door opening is opened on the structural panel 6 corresponding to the position of the window frame or door frame. In this way, at the position where the door opening or window is required, a prefabricated wall module unit with a preset door and window opening can be directly used to ensure structural strength and facilitate construction.

[0050] In this embodiment, the U-shaped keel 14 and the C-shaped keel 13 are both cold-formed steel keels, and the wall thickness of the cold-formed steel keel is 1.0-2.5 mm. The structural panel 6 is an OSB board, gypsum board, cement fiber board or calcium silicate board, and the filler 12 is a lightweight cement-based or gypsum-based filler or thermal insulation rock wool.

[0051] like Figures 3 to 8As shown, an assembled composite wall is formed by connecting the above-mentioned prefabricated wall module units 4 transversely to each other. Adjacent prefabricated wall module units 4 are connected to each other through I-shaped connectors 7. The sizes of the two opening sides of the I-shaped connector 7 match the thickness of the prefabricated wall module units 4. The prefabricated wall module units 4 are clamped in the openings of the I-shaped connectors 7, and the flange plates of the I-shaped connectors 7 are connected and fixed to the U-shaped keels 14 in the prefabricated wall module units 4 by screws. The joints between the prefabricated wall module units 4 and the I-shaped connectors 7 are filled with building sealants 11. The prefabricated wall module units 4 and the lower building are connected to each other. The plate or foundation 2 is connected by a bottom connector 3, and the bottom connector 3 is a U-shaped steel with an opening size matching the thickness of the prefabricated wall module unit 4. The bottom connector 3 is fixed to the lower floor slab or foundation 2 by bolts pre-buried in the lower floor slab or foundation 2. A leveling layer and a moisture-proof layer are arranged in sequence between the surface of the lower floor slab or foundation 2 and the bottom connector 3. A buffer pad layer 10 is laid in the bottom connector 3, and the thickness of the buffer pad layer 10 is 2-5mm higher than the embedded bolts. The bottom connector 3 and the lower floor slab or foundation 2 are also reinforced by an angle steel connector 1 to connect the wall bottom connector 3 to the lower floor slab or foundation 2.

[0052] The prefabricated wall module unit 4 is connected to the upper floor or beam 9 through a top connector 8, and the top connector 8 includes a cover plate and two parallel ear plates vertically fixed to the bottom of the cover plate. A spacing is provided between the edge of the cover plate and the ear plate to form a cover plate fixing area. Bolt holes are provided on the cover plate fixing area and the ear plate. The spacing between the two ear plates matches the thickness of the prefabricated wall module unit 4. The top connector 8 is fixed to the top of the prefabricated wall module unit 4 through the ear plate, and the prefabricated wall module unit 4 is fixed to the upper floor or beam 9 through the top connector 8.

[0053] Embodiment 2:

[0054] like Fig. 9As shown, the difference between this embodiment and embodiment 1 is that the wall skeleton in the prefabricated wall module unit includes an outer frame composed of I-shaped keels 5 arranged on both sides and U-shaped keels 14 arranged on both sides of the top and bottom, and a plurality of vertically arranged C-shaped keels 13 arranged in the outer frame to support the outer frame, the C-shaped keels 13 are arranged in parallel along the wall direction in the outer frame, two I-shaped keels 5 are arranged on the left and right sides of the outer frame, two U-shaped keels 14 are arranged on the top and bottom sides of the outer frame, and the I-shaped keels 5 are arranged on the left and right sides of the outer frame, and the U-shaped keels 14 are arranged on the top and bottom sides of the outer frame. The I-shaped keel 5 and the U-shaped keel 14 are connected and fixed end to end in sequence to form a rectangular outer frame. The C-shaped keel 13 is fixed between the top U-shaped keel 14 and the bottom U-shaped keel 14 to play a supporting role. The I-shaped keels 5 on both sides of the wall skeleton have one opening side facing the wall and are arranged opposite to each other, and the other opening side faces the outside of the wall to form a connecting end. The structural panel 6 is connected and fixed to the I-shaped keel 5, the U-shaped keel 14 and the C-shaped keel 13 by screws. The I-shaped keel 5 can be composed of two U-shaped keel webs connected.

[0055] In this embodiment, the I-shaped keel 5, U-shaped keel 14 and C-shaped keel 13 are all cold-formed steel keels, and the wall thickness of the cold-formed steel keel is 1.0-2.5 mm. The structural panel 6 is an OSB board, a gypsum board, a cement fiber board or a calcium silicate board, and the filler 12 is a lightweight cement-based or gypsum-based filler or thermal insulation rock wool.

[0056] like Figure 10-11 As shown, a prefabricated composite wall is formed by connecting the prefabricated wall module units 4 in Example 2 transversely to each other, and adjacent prefabricated wall module units 4 are connected to each other through rectangular steel pipe connectors 15. The opening sides of the connecting ends of the I-shaped keels 5 of adjacent prefabricated wall module units 4 are connected to each other to form a clamping area, and the clamping area matches the size of the rectangular steel pipe connector 15. The rectangular steel pipe connector 15 is clamped in the clamping area, and the rectangular steel pipe connector 15 is connected and fixed to the I-shaped keel 5 by screws. In this embodiment, the connection method of the prefabricated composite wall with the lower floor or foundation 2 and the upper floor or beam 9 is the same as that of Example 1.

[0057] The present invention also includes a method for constructing a prefabricated wall module unit, first assembling and fixing the wall frame, laying the wall frame flat, installing and fixing a structural panel 6 on an open side of the wall frame, closing the opening on this side of the wall frame, and then turning the wall frame over and laying it flat, so that the side on which the structural panel 6 is installed is located at the bottom, and the other open side of the wall frame is naturally facing upward to form a filling port, and then filling the cavity formed by the wall frame and the structural panel 6 with a filler 12 through the filling port, and finally closing the filling port through another structural panel 6.

[0058] In the above embodiment, if the filler 12 is a wet material, the structural panel 6 is installed to close the filling port before the filler solidifies, and after the installation is completed, the prefabricated wall module unit 4 is sent to the curing room for curing, the structural panel 6 is an OSB board, a gypsum board, a cement fiber board or a calcium silicate board, and the filler 12 is a lightweight concrete or a lightweight thermal insulation mortar or a lightweight gypsum-based filler or a filled thermal insulation rock wool.

[0059] The present invention also discloses a construction method of an assembled composite wall, which specifically comprises the following steps:

[0060] Step 1: Determine the size and quantity of the prefabricated wall module units 4 according to the structural design plan and complete the production of the required prefabricated wall module units 4 in the factory;

[0061] Step 2: Arrange bolt embedded parts on the lower floor or foundation 2, and install the bottom connecting parts 3 and the buffer pad 10;

[0062] Step 3: Use a lifting tool to lift the prefabricated wall module unit 4 to the designated position and connect and fix it to the bottom connecting piece 3, and then connect and fix the adjacent prefabricated wall module units 4;

[0063] Step 4: Fix the top of the prefabricated wall module unit 4 and the upper floor or beam 9 through the top connector 8;

[0064] Step 5: Repeat the above steps to complete the installation of other walls on the upper floors in sequence.

[0065] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. An assembled composite wall, comprising a plurality of prefabricated wall module units (4) connected transversely to each other, characterized in that: The prefabricated wall module unit comprises a wall frame, a structural panel (6) fixed on the wall frame and closing two opening sides of the wall frame, and a filler (12) filled in a closed space formed by the wall frame and the structural panel (6), the wall frame comprising an outer frame composed of I-shaped keels (5) arranged on both sides and U-shaped keels (14) arranged on both sides of the top and bottom, and a plurality of vertically arranged C-shaped keels (13) arranged in the outer frame to longitudinally support the outer frame, the C-shaped keels (13) being arranged in parallel along the wall direction in the outer frame, the I-shaped keels (5) on both sides of the wall frame having one opening side facing the inside of the wall and being arranged opposite to each other, and the other opening side facing the outside of the wall to form a connection end, the structural panel (6) being connected and fixed to the I-shaped keel (5), the U-shaped keel (14) and the C-shaped keel (13) by screws; Adjacent prefabricated wall module units (4) are connected to each other via rectangular steel pipe connectors (15); the opening sides of the connection ends of the I-shaped keels (5) of the adjacent prefabricated wall module units (4) are connected to each other to form a clamping area; the rectangular steel pipe connector (15) matches the size of the clamping area; the rectangular steel pipe connector (15) is clamped in the clamping area; and the rectangular steel pipe connector (15) is connected and fixed to the I-shaped keel (5) via screws; The prefabricated wall module unit (4) is connected to the lower floor slab or foundation (2) via a bottom connecting piece (3); the bottom connecting piece (3) is a U-shaped steel with an opening size matching the thickness of the prefabricated wall module unit (4); the bottom connecting piece (3) is fixed to the lower floor slab or foundation (2) via bolts pre-buried in the lower floor slab or foundation (2); a leveling layer and a moisture-proof layer are provided in sequence between the upper surface of the lower floor slab or foundation (2) and the bottom connecting piece (3); The prefabricated wall module unit (4) is connected to an upper floor slab or beam (9) via a top connecting piece (8), wherein the top connecting piece (8) comprises a cover plate and two parallel ear plates vertically fixed to the bottom of the cover plate, a spacing is provided between the edge of the cover plate and the ear plates to form a cover plate fixing area, the cover plate fixing area and the ear plates are both provided with bolt holes, the spacing between the two ear plates matches the thickness of the prefabricated wall module unit (4), the top connecting piece (8) is fixed to the top of the prefabricated wall module unit (4) via the ear plates, and the prefabricated wall module unit (4) is fixed to the upper floor slab or beam (9) via the top connecting piece (8).

2. The assembled composite wall according to claim 1, characterized in that: The joints between the structural panels (6) of adjacent prefabricated wall module units (4) are filled with building sealant (11).

3. An assembled composite wall, comprising a plurality of prefabricated wall module units (4) connected transversely to each other, characterized in that: The prefabricated wall module unit comprises a wall frame, a structural panel (6) fixed on the wall frame and closing two opening sides of the wall frame, and a filler (12) filled in a closed space formed by the wall frame and the structural panel (6), wherein the wall frame comprises an outer frame composed of a U-shaped keel (14) and a plurality of vertically arranged C-shaped keels (13) arranged in the outer frame to longitudinally support the outer frame, wherein the C-shaped keels (13) are arranged in parallel along the wall direction in the outer frame, and the opening sides of the U-shaped keels (14) constituting the outer frame are all facing the wall and are arranged opposite to each other in pairs, and the structural panel (6) is connected and fixed to the U-shaped keels (14) and the C-shaped keels (13) by screws; Adjacent prefabricated wall module units (4) are connected to each other via an I-shaped connecting piece (7), the size of the two opening sides of the I-shaped connecting piece (7) matches the thickness of the prefabricated wall module unit (4), the adjacent prefabricated wall module units (4) are clamped in the openings on both sides of the I-shaped connecting piece (7), and the I-shaped connecting piece (7) is connected and fixed to the prefabricated wall module unit (4) via screws; The prefabricated wall module unit (4) is connected to the lower floor slab or foundation (2) via a bottom connecting piece (3); the bottom connecting piece (3) is a U-shaped steel with an opening size matching the thickness of the prefabricated wall module unit (4); the bottom connecting piece (3) is fixed to the lower floor slab or foundation (2) via bolts pre-buried in the lower floor slab or foundation (2); a leveling layer and a moisture-proof layer are provided in sequence between the upper surface of the lower floor slab or foundation (2) and the bottom connecting piece (3); The prefabricated wall module unit (4) is connected to an upper floor slab or beam (9) via a top connecting piece (8), wherein the top connecting piece (8) comprises a cover plate and two parallel ear plates vertically fixed to the bottom of the cover plate, a spacing is provided between the edge of the cover plate and the ear plates to form a cover plate fixing area, the cover plate fixing area and the ear plates are both provided with bolt holes, the spacing between the two ear plates matches the thickness of the prefabricated wall module unit (4), the top connecting piece (8) is fixed to the top of the prefabricated wall module unit (4) via the ear plates, and the prefabricated wall module unit (4) is fixed to the upper floor slab or beam (9) via the top connecting piece (8).

4. The assembled composite wall according to claim 3, characterized in that: The joint between the prefabricated wall module unit (4) and the I-shaped connector (7) is filled with building sealant (11).

5. The assembled composite wall according to any one of claims 1 to 4, characterized in that: A buffer layer (10) for supporting the prefabricated wall module unit (4) is laid inside the bottom connecting piece (3); the thickness of the buffer layer (10) is 2-5 mm greater than that of the embedded bolts.

6. The assembled composite wall according to claim 5, characterized in that: An angle steel connection piece (1) is also provided between the bottom connection piece (3) and the lower floor slab or foundation (2) to reinforce the connection between the wall bottom connection piece (3) and the lower floor slab or foundation (2).

7. The assembled composite wall according to any one of claims 1 to 4, characterized in that: The I-shaped keel (5), U-shaped keel (14) and C-shaped keel (13) are all cold-bent steel keels, the structural panel (6) is an OSB board, a gypsum board, a cement fiber board, a calcium silicate board, a plywood or a steel plate, and the filler (12) is a lightweight concrete or a lightweight thermal insulation mortar or a lightweight gypsum-based filler or a thermal insulation rock wool filler.

8. The assembled composite wall according to any one of claims 1 to 4, characterized in that: A keel is fixed inside the wall frame to form a window frame or a door frame, and a window or a door opening is provided on the structural panel (6) at a position corresponding to the window frame or the door frame.

9. A construction method for an assembled composite wall according to claim 1 or 3, characterized in that: First, the wall frame is assembled and fixed, the wall frame is laid flat, a structural panel (6) is installed and fixed on an open side of the wall frame to close the opening on this side of the wall frame, and then the wall frame is turned over and laid flat, so that the side on which the structural panel (6) is installed is located at the bottom, and the other open side of the wall frame faces upward to form a filling opening, and then the filling material (12) is filled into the cavity formed by the wall frame and the structural panel (6) through the filling opening, and finally the filling opening is closed by another structural panel (6).

10. The construction method of the assembled composite wall according to claim 9, characterized in that: When the filler (12) is lightweight concrete or lightweight thermal insulation mortar, the structural panel (6) is installed to seal the filling port before the filler (12) solidifies, and after installation is completed, the prefabricated wall module unit (4) is sent to a curing room for curing.

11. The construction method of the assembled composite wall according to claim 9, characterized in that: The structural panel is an OSB board, a gypsum board, a cement fiber board, a calcium silicate board, a plywood or a steel plate, and the filler is a lightweight cement-based or gypsum-based filler or a thermal insulation rock wool.

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