Construction method for multi-wall prefabricated module of fabricated building

Abstract

The invention belongs to the technical field of fabricated buildings, and particularly relates to a fabricated building multi-wall prefabricated module construction method. In order to overcome the defects that in the prior art, connection mostly focuses on the thickness end faces of adjacent prefabricated concrete wall bodies, and connection between large-area faces is rarely involved, the technical scheme adopted by the invention is as follows: the construction method of the prefabricated building multi-wall prefabricated module comprises the following steps: prefabricating a first prefabricated concrete module, a second prefabricated concrete module and connecting steel bars; the first prefabricated concrete module and the second prefabricated concrete module are hoisted to preset positions, and horizontal steel bars penetrate through the first steel bar grooves and the second steel bar grooves; and concrete is poured, specifically, the first connecting blocks, the second connecting blocks and the connecting ribs are poured into the concrete, so that the first prefabricated concrete module and the second prefabricated concrete module are poured into a whole. The prefabricated concrete module has the beneficial effects that two prefabricated concrete modules with multiple walls are assembled, the prefabrication degree is improved, the field workload is reduced, and the construction efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of prefabricated buildings, and in particular relates to a construction method for multi-wall prefabricated modules of prefabricated buildings. Background Art

[0002] Prefabricated shear wall structure is an important form of prefabricated concrete structure. Existing technologies are mostly focused on the connection of adjacent prefabricated concrete wall end faces (i.e., the faces of prefabricated concrete walls along the height and thickness), and rarely involve the connection of adjacent prefabricated concrete walls along the height and length faces. The connection between the end faces can only achieve the connection between walls, while the connection between the height and length faces can achieve the connection between rooms (rooms with multiple walls can be prefabricated in the factory), which can further improve the degree of prefabrication and reduce the workload on site. Summary of the invention

[0003] In view of the shortcomings that the prior art mostly focuses on connecting the thickness end faces of adjacent precast concrete walls and rarely involves the connection between large-area surfaces, the present invention provides a construction method for multi-wall precast modules of an assembled building to achieve the connection between precast modules with multiple walls.

[0004] To achieve the above object, the present invention adopts the following technical solution: a construction method of a multi-wall prefabricated module for an assembled building, the construction method of a multi-wall prefabricated module for an assembled building comprising:

[0005] Step S1, prefabricate a first precast concrete module, a second precast concrete module and connecting steel bars, wherein the first precast concrete module has multiple walls, and at least one of the walls is provided with multiple groups of first connecting components, and the first connecting block components are distributed in the horizontal direction, and the first connecting components include multiple first connecting blocks protruding from the outside of the wall and distributed in the height direction, and each first connecting block has a first steel bar groove penetrating horizontally, and the outer end of the first steel bar groove is closed, and the first connecting block includes steel bars connected to the wall; the second precast concrete module has multiple walls, and at least one of the walls is provided with multiple groups of second connecting components, and the second connecting block components are distributed in the horizontal direction, and the second connecting components include multiple second connecting blocks protruding from the outside of the wall and distributed in the height direction, and each second connecting block has a second steel bar groove penetrating horizontally, and the outer end of the second steel bar groove is closed, and the second connecting block includes steel bars connected to the wall; the connecting steel bars include multiple horizontal steel bars;

[0006] Step S2, hoisting the first precast concrete module and the second precast concrete module to a preset position, and passing the horizontal steel bars through the first steel bar groove and the second steel bar groove;

[0007] Step S3, pouring concrete, pouring the first connection block, the second connection block and the connection ribs inside, so that the first precast concrete module and the second precast concrete module are poured into one.

[0008] In the method for constructing multi-wall prefabricated modules for assembled buildings of the present invention, both the first prefabricated concrete module and the second prefabricated concrete module have multiple walls and connection components. During assembly, after the two prefabricated concrete modules are positioned in place, the horizontal steel bars of the connecting steel bars are passed through the first steel bar groove and the second steel bar groove and cast in situ, so that the assembly between the two prefabricated concrete modules with multiple walls can be realized, thereby improving the degree of prefabrication. In some other cases, the connecting steel bars include other steel bars in addition to the horizontal steel bars.

[0009] As an improvement, in step S2, the first connecting component and the second connecting component are staggered in the horizontal direction, the first connecting component and the second connecting component are distributed in high and low positions, there are two groups of horizontal steel bars and they are tooth-shaped, one group of horizontal steel bars passes through the first steel bar groove, and the other group of horizontal steel bars passes through the second steel bar groove; the two groups of horizontal steel bars are staggered in the height direction; the horizontal steel bars passing through the first steel bar groove are placed on the second connecting block, and the horizontal steel bars passing through the second steel bar groove are placed on the first connecting block.

[0010] As an improvement, in step S2, firstly, two sets of horizontal steel bars are passed through the first steel bar groove and the second steel bar groove respectively and leaned against the wall, and then hoisted, and then the two sets of horizontal steel bars are rotated after hoisting into place; or,

[0011] In step S2, after the first precast concrete module is hoisted into place, a group of horizontal steel bars are passed through the first steel bar groove and leaned against the wall, another group of horizontal steel bars are passed through the second steel bar groove and leaned against the wall, and then the second precast concrete module is hoisted. After the second precast concrete module is hoisted into place, the two groups of rotating horizontal steel bars are rotated; or,

[0012] In step S2, after the first precast concrete module and the second precast concrete module are hoisted to a preset position, two sets of horizontal steel bars are respectively inserted and rotated.

[0013] As an improvement, in step S1, the connecting steel bars further include a plurality of vertical steel bars;

[0014] Step S2 also includes inserting the vertical steel bars into the grooves of the two sets of horizontal steel bars.

[0015] As an improvement, in step S1, the first connection blocks of the first connection assembly are distributed at intervals, or the first connection blocks of the first connection assembly are connected as a whole.

[0016] As an improvement, in step S1, the outer ends of the first connection blocks of the first connection assembly are connected as a whole, the outer ends of the second connection blocks of the second connection assembly are connected as a whole, and the connecting steel bars further include a plurality of steel cages;

[0017] In step S2, before installing the horizontal steel bars, the steel cage is simultaneously inserted between the adjacent first connection components and the adjacent second connection components;

[0018] In step S2, the horizontal steel bars are divided into two groups, one group of horizontal steel bars is inserted into the steel cage and the first steel groove, and the other group of horizontal steel bars is inserted into the steel cage and the second steel groove.

[0019] As an improvement, in step S1, the first connecting component and the second connecting component are flush with each other vertically; the first connecting component and the second connecting component are identical.

[0020] As an improvement, in step S1, the outer ends of the first connection blocks of the first connection assembly are connected as one, and the outer ends of the second connection blocks of the second connection assembly are connected as one;

[0021] In step S2, the first connecting components and the second connecting components are staggered in the horizontal direction, and the same horizontal steel bar passes through the first steel bar groove and the second steel bar groove.

[0022] As an improvement, in step S1, the first connecting component and the second connecting component are the same; the first connecting component and the second connecting component are flush with each other from top to bottom.

[0023] As an improvement, in step S1, the first connection assembly only includes toothed steel bars, and the toothed steel bars include a vertical portion embedded in the wall and an exposed U-shaped portion; or,

[0024] In step S1, the first connection assembly includes two symmetrical toothed steel bars and a plurality of concrete parts, wherein one toothed steel bar includes a plurality of vertical parts embedded in the wall and a plurality of U-shaped parts outside the wall, and the concrete part wraps the U-shaped part; or,

[0025] In step S1, the first connection assembly includes a steel column cage and a concrete part, the concrete part is tooth-shaped, the steel column cage includes four vertical steel bars and a plurality of annular steel bars, and the concrete part wraps the steel column cage; or,

[0026] In step S1, the first connection assembly includes a ring-shaped steel bar and a plurality of concrete parts, the ring-shaped steel bar includes two vertical steel bars and at least two horizontal steel bars, the concrete part is tooth-shaped, and the vertical steel bars and the two horizontal steel bars are wrapped by the concrete part; or,

[0027] In step S1, the first connection assembly includes a toothed steel bar and a toothed concrete part, the toothed steel bar includes a plurality of vertical parts embedded in the wall and a plurality of U-shaped parts outside the wall, and the concrete part wraps the U-shaped part.

[0028] The beneficial effect of the construction method of the multi-wall prefabricated module of the prefabricated building of the present invention is that during assembly, after the positions of the two prefabricated concrete modules are adjusted in place, the horizontal steel bars of the connecting steel bars are passed through the first steel bar groove and the second steel bar groove and cast in situ, so that the assembly between the two prefabricated concrete modules with multiple walls can be realized, the degree of prefabrication is improved, and the construction efficiency is improved. In some other cases, the connecting steel bars include other steel bars in addition to the horizontal steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a combined structure obtained by using the construction method of multi-wall prefabricated modules for assembled buildings according to the first embodiment of the present invention (cast-in-situ concrete is not shown).

[0030] Figure 2 yes Figure 1 Schematic diagram of the structure of the first precast concrete module of the composite structure.

[0031] Figure 3 yes Figure 1 Structural schematic diagram of the composite structure before installing the connecting steel bars.

[0032] Figure 4 yes Figure 1 Structural schematic diagram of the composite structure when installing connecting steel bars.

[0033] Figures 5 to 7 yes Figure 1 Schematic diagrams of three structures of the first precast concrete module of the composite structure.

[0034] Figure 8 It is a structural schematic diagram of a combined structure obtained by using the construction method of multi-wall prefabricated modules for assembled buildings according to the second embodiment of the present invention (cast-in-situ concrete is not shown).

[0035] Fig. 9 yes Figure 8 Structural schematic diagram of installing steel cage in composite structure.

[0036] Fig.10 yes Figure 8 Schematic diagram of the structure after the steel cage is installed in the composite structure.

[0037] Fig.11 It is a structural schematic diagram of a combined structure obtained by using the construction method of multi-wall prefabricated modules for assembled buildings according to the third embodiment of the present invention (cast-in-situ concrete is not shown).

[0038] Fig.12 yes Fig.11 Schematic diagram of the structure of the first precast concrete module of the composite structure.

[0039] Fig.13 yes Fig.11 Structural schematic diagram of the composite structure when installing connecting steel bars.

[0040] Fig.14 yes Fig.11 Schematic diagram of the structure after a set of connecting steel bars are installed in the composite structure (the second precast concrete module is cut away).

[0041] Fig.15 yes Fig.11 Three structural schematic diagrams of the first precast concrete module of the composite structure (showing the internal structure of the first connecting component).

[0042] Fig.16 It is a structural schematic diagram of the first prefabricated concrete module used in the construction method of prefabricated modules for multi-walls of assembled buildings according to the fourth embodiment of the present invention.

[0043] In the figure, 01, the first precast concrete module; 02, the second precast concrete module; 03, the connecting steel bars;

[0044] 1. Wall;

[0045] 2. First connection assembly; 21. First connection block; 22. First steel bar groove; 23. Toothed steel bar; 231. Vertical portion; 232. U-shaped portion; 24. Concrete portion; 25. Ring steel bar; 251. Vertical steel bar; 252. Horizontal steel bar; 26. Steel bar column cage; 261. Vertical steel bar; 262. Ring steel bar;

[0046] 3. Horizontal reinforcement;

[0047] 4. Vertical steel bars;

[0048] 5. Steel cage;

[0049] 6. The second connection component. DETAILED DESCRIPTION

[0050] The technical solutions of the embodiments of the present invention are explained and described below, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0051] See also Figures 1 to 16 The method for constructing a multi-wall prefabricated module of an assembled building according to an embodiment of the present invention comprises:

[0052] Step S1, prefabricate a first precast concrete module, a second precast concrete module and connecting steel bars, wherein the first precast concrete module has multiple walls, at least one of which is provided with multiple groups of first connecting components, the first connecting block components are distributed in the horizontal direction, the first connecting components include multiple first connecting blocks protruding from the outside of the wall and distributed in the height direction, each of the first connecting blocks has a first steel bar groove running horizontally, and the outer end of the first steel bar groove is closed; the second precast concrete module has multiple walls, at least one of which is provided with multiple groups of second connecting components, the second connecting block components are distributed in the horizontal direction, the second connecting components include multiple second connecting blocks protruding from the outside of the wall and distributed in the height direction, each of the second connecting blocks has a second steel bar groove running horizontally, and the outer end of the second steel bar groove is closed; the connecting steel bars include multiple horizontal steel bars;

[0053] Step S2, hoisting the first precast concrete module and the second precast concrete module to a preset position, and passing the horizontal steel bars through the first steel bar groove and the second steel bar groove;

[0054] Step S3, pouring concrete, pouring the first connection block, the second connection block and the connection ribs inside, so that the first precast concrete module and the second precast concrete module are poured into one.

[0055] In the prior art, most of the methods are to hoist each wall separately, which results in low efficiency on site. In the construction method of multi-wall prefabricated modules for assembled buildings of the present invention, the first prefabricated concrete module and the second prefabricated concrete module both have multi-sided walls and connection components. During assembly, after the two prefabricated concrete modules are adjusted in place, the horizontal steel bars of the connecting steel bars are passed through the first steel bar groove and the second steel bar groove and cast in situ, so that the assembly between the two prefabricated concrete modules with multi-sided walls can be realized, thereby improving the degree of prefabrication and the construction efficiency.

[0056] Embodiment 1

[0057] See also Figures 1 to 7 The method for constructing multi-wall prefabricated modules for assembled buildings according to the first embodiment of the present invention comprises:

[0058] The first precast concrete module 01 has multiple walls 1, wherein at least one wall 1 is provided with multiple groups of first connection components 2, wherein the first connection block 21 components are distributed in the horizontal direction, and the first connection components 2 include multiple first connection blocks 21 protruding from the outside of the wall 1 and distributed in the height direction, and each first connection block 21 has a first steel bar groove 22 that runs horizontally through, and the outer end of the first steel bar groove 22 is closed;

[0059] The second precast concrete module 02 has multiple walls 1, wherein at least one wall 1 is provided with multiple sets of second connection components 6, the second connection block components are distributed in the horizontal direction, the second connection components 6 include multiple second connection blocks protruding from the outside of the wall 1 and distributed in the height direction, each second connection block has a second steel bar groove running horizontally, and the outer end of the second steel bar groove is closed;

[0060] The connecting steel bars 03 include a plurality of horizontal steel bars 3 perpendicular to the splicing direction of the first precast concrete module 01 and the second precast concrete module 02, and the horizontal steel bars 3 pass through the first steel bar groove 22 and the second steel bar groove;

[0061] The first connection block 21, the second connection block and the connection ribs are cast in situ concrete, so that the first precast concrete module 01 and the second precast concrete module 02 are cast as one.

[0062] In this embodiment, the first precast concrete module 01 and the second precast concrete module 02 each have four walls 1. In other embodiments, the number and distribution of the walls 1 of each precast concrete module may be changed accordingly as required.

[0063] In this embodiment, the first connecting component 2 and the second connecting component 6 are the same; the first connecting component 2 and the second connecting component 6 are flush with each other. In other embodiments, the first connecting component 2 and the second connecting component 6 may also be different, such as in thickness and other aspects.

[0064] In this embodiment, the first connecting assembly 2 is tooth-shaped. The outer ends of the first connecting blocks 21 of the first connecting assembly 2 are connected as one, the first connecting assembly 2 and the second connecting assembly 6 are staggered in the horizontal direction, and the same horizontal steel bar 3 passes through the first steel bar groove 22 and the second steel bar groove.

[0065] See also Figure 5 In one embodiment of the first connection assembly 2, the first connection assembly 2 includes a steel column cage 26 and a concrete portion 24, the concrete portion 24 is tooth-shaped, the steel column cage 26 includes four vertical steel bars 261 and a plurality of annular steel bars 262, and the concrete portion 24 wraps the steel column cage 26. Two of the four vertical steel bars 261 are located at the root of the teeth of the tooth-shaped concrete portion 24, and the other two are located in the wall 1.

[0066] See also Figure 6In another case of the first connection component 2 in this embodiment, the first connection component 2 includes a ring-shaped steel bar 25 and a plurality of concrete parts 24, the ring-shaped steel bar 25 includes two vertical steel bars 251 and two horizontal steel bars 252, the concrete part 24 is tooth-shaped, and the concrete part 24 is wrapped around the vertical steel bars 251 and the two horizontal steel bars 252. One of the two vertical steel bars 251 is located at the root of the tooth-shaped concrete part 24, and the other is located in the wall 1. In other embodiments, there may be more than two horizontal steel bars 252.

[0067] See also Figure 7 In another case of the first connecting component 2 in this embodiment, the first connecting component 2 includes two symmetrically arranged toothed steel bars 23 and a toothed concrete portion 24, wherein one toothed steel bar 23 includes a vertical portion 231 buried in the wall 1 and a U-shaped portion 232 outside the wall 1, and the concrete portion 24 wraps the U-shaped portion 232.

[0068] In this embodiment, the wall 1 includes concrete and embedded steel bars. Figure 5 In addition, the steel bars of the first connecting assembly 2 are connected to the embedded steel bars of the wall 1 (by bundling or welding, etc.).

[0069] In this embodiment, the first precast concrete module 01 may also have a floor and a ceiling, and pre-decoration is performed in the first precast concrete module 01 to further improve the degree of prefabrication.

[0070] In this embodiment, the first precast concrete module 01, the second precast concrete module 02 and the connecting steel bars 03 are prefabricated in the factory. During assembly, the first precast concrete module 01 and the second precast concrete module 02 are positioned in sequence (through alignment between the steel bars and the holes and grouting, etc.), so that the first connecting component 2 and the second connecting component 6 are staggered in the horizontal direction and the projections of the first steel bar groove 22 and the second steel bar groove on the vertical plane at least partially overlap, and then the connecting steel bars 03 (only a plurality of horizontal steel bars 3) are inserted into the first steel bar groove 22 and the second steel bar groove. After being inserted into place, the formwork is supported for cast-in-place, and the assembly between the first precast concrete module 01 and the second precast concrete is completed (between the horizontal large-area surfaces rather than between the thickness end surfaces). One or more horizontal steel bars 3 can be arranged in the same first steel bar groove 22.

[0071] The beneficial effect of the construction method of multi-wall prefabricated modules for prefabricated buildings of the first embodiment of the present invention is that during assembly, after the positions of the two prefabricated concrete modules are adjusted into place, the horizontal steel bars 3 connecting the steel bars 03 are passed through the first steel bar groove 22 and the second steel bar groove and cast in situ, thereby realizing the assembly between the two prefabricated concrete modules with multiple walls 1, improving the degree of prefabrication, reducing the workload of on-site assembly, and improving construction efficiency.

[0072] Embodiment 2

[0073] See also Figures 8 to 10 In the second embodiment of the present invention, the construction method of the multi-wall prefabricated module of the assembled building, the connecting steel bars 03 of the obtained combined structure include multiple horizontal steel bars 3 and multiple steel cages 5, the steel cages 5 are simultaneously inserted between the adjacent first connecting components 2 and the adjacent second connecting components 6, the horizontal steel bars 3 are divided into two groups, one group of horizontal steel bars 3 is inserted into the steel cage 5 and the first steel groove 22, and the other group of horizontal steel bars 3 is inserted into the steel cage 5 and the second steel groove.

[0074] In this embodiment, the first connecting component 2 and the second connecting component 6 are the same, and the structure of the first connecting component 2 refers to that of the first embodiment.

[0075] In this embodiment, the first connecting component 2 and the second connecting component 6 are butted against each other (the distance between the end faces is determined according to needs).

[0076] In this embodiment, the first precast concrete module 01 and the second precast concrete module 02 are prefabricated in the factory. During assembly, the first precast concrete module 01 and the second precast concrete module 02 are positioned successively, so that the first connecting component 2 and the second connecting component 6 are staggered in the horizontal direction and the first connecting component 2 and the second connecting component 6 are butted, and then the steel cage 5 of the connecting steel bar 03 is placed between the adjacent first connecting component 2 and the adjacent second connecting component 6. After the steel cage 5 is in place, the two groups of horizontal steel bars 3 are distributed and inserted into the steel cage 5 and the second steel groove, and finally the formwork is supported for cast-in-place, that is, the assembly between the first precast concrete module 01 and the second precast concrete is completed (between the horizontal large-area surfaces rather than between the thickness end surfaces). One or more horizontal steel bars 3 can be set in the same first steel groove 22.

[0077] Embodiment 3

[0078] See also Figures 11 to 15 , the construction method of multi-wall prefabricated modules of prefabricated buildings in embodiment three of the present invention, in this embodiment, the first connecting component 2 and the second connecting component 6 are staggered in the horizontal direction, the first connecting component 2 and the second connecting component 6 are distributed in high and low positions, there are two groups of horizontal steel bars 3 and they are tooth-shaped, one group of horizontal steel bars 3 passes through the first steel bar groove 22, and the other group of horizontal steel bars 3 passes through the second steel bar groove.

[0079] In this embodiment, the two groups of horizontal steel bars 3 are staggered in the height direction; the horizontal steel bars 3 passing through the first steel bar groove 22 are placed on the second connecting block, and the horizontal steel bars 3 passing through the second steel bar groove are placed on the first connecting block 21.

[0080] In this embodiment, the first connecting component 2 includes a toothed steel bar 23 and a plurality of concrete parts 24 . The toothed steel bar 23 includes a vertical part 231 buried in the wall 1 and a U-shaped part 232 outside the wall 1 . The concrete part 24 wraps the U-shaped part 232 .

[0081] In this embodiment, the connecting steel bars 03 further include a plurality of vertical steel bars 4 , and the vertical steel bars 4 are located in the tooth grooves of the two groups of horizontal steel bars 3 .

[0082] In this embodiment, the first precast concrete module 01 and the second precast concrete module 02 are prefabricated in the factory. During assembly, the first precast concrete module 01 and the second precast concrete module 02 are positioned successively so that the first connecting component 2 and the second connecting component 6 are staggered in the horizontal direction. Then, the two groups of toothed horizontal steel bars 3 of the connecting steel bars 03 are respectively inserted into the first steel bar groove 22 and the second steel bar groove. After the toothed horizontal steel bars 3 are in place, the toothed horizontal steel bars 3 are rotated so that the horizontal steel bars 3 passing through the first steel bar groove 22 are placed on the second connecting block, and the horizontal steel bars 3 passing through the second steel bar groove are placed on the first connecting block 21. Vertical steel bars 4 are inserted into the tooth grooves of the two groups of horizontal steel bars 3. Finally, the formwork is supported for cast-in-place casting, thereby completing the assembly between the first precast concrete module 01 and the second precast concrete (between the horizontal large-area surfaces rather than between the thickness end surfaces).

[0083] In other embodiments, in order to facilitate the installation of the toothed horizontal steel bars 3, the two groups of toothed horizontal steel bars 3 can be respectively inserted into the first steel bar groove 22 and the second steel bar groove and leaned against the corresponding wall 1 (at this time, it can be operated from the side, and the toothed horizontal steel bars 3 are easier to install), and then the first precast concrete module 01 and the second precast concrete module 02 are hoisted. After hoisting into place, the two groups of toothed horizontal steel bars 3 are rotated so that the horizontal steel bars 3 passing through the first steel bar groove 22 are placed on the second connecting block, and the horizontal steel bars 3 passing through the second steel bar groove are placed on the first connecting block 21.

[0084] Embodiment 4

[0085] See also Fig.16 In this embodiment, the first connection assembly 2 only includes the toothed steel bar 23, and the toothed steel bar 23 includes a vertical portion 231 embedded in the wall 1 and an exposed U-shaped portion 232. The other structures and assembly processes of the construction method of the multi-wall prefabricated module of the assembled building refer to the third embodiment.

[0086] The above is only a specific implementation of the invention, but the protection scope of the invention is not limited thereto. Those skilled in the art should understand that the invention includes but is not limited to the contents described in the above specific implementation. Any modification that does not deviate from the functional and structural principles of the invention will be included in the scope of the claims.

Claims

1. A method for constructing multi-wall prefabricated modules of assembled buildings, characterized in that: The method for constructing a multi-wall prefabricated module of an assembled building comprises: Step S1, prefabricating a first prefabricated concrete module (01), a second prefabricated concrete module (02) and connecting steel bars (03), wherein the first prefabricated concrete module (01) has a plurality of walls (1), and at least one of the walls (1) is provided with a plurality of first connecting components (2), wherein the first connecting block (21) components are distributed in a horizontal direction, and the first connecting components (2) include a plurality of first connecting blocks (21) protruding from the outside of the wall (1) and distributed in a height direction, and each first connecting block (21) has a first connecting block (21) penetrating horizontally. A steel bar groove (22), wherein the outer end of the first steel bar groove (22) is closed; the second precast concrete module (02) has multiple walls (1), wherein at least one of the walls (1) is provided with multiple sets of second connection components (6), wherein the second connection block components are distributed in a horizontal direction, wherein the second connection components (6) include multiple second connection blocks protruding from the outside of the wall (1) and distributed in a height direction, wherein each second connection block has a second steel bar groove extending horizontally therethrough, wherein the outer end of the second steel bar groove is closed; and the connection steel bars (03) include multiple horizontal steel bars (3); Step S2, hoisting the first precast concrete module (01) and the second precast concrete module (02) to a preset position, and passing the horizontal steel bars (3) through the first steel bar groove (22) and the second steel bar groove; Step S3, pouring concrete, pouring the first connection block (21), the second connection block and the connection ribs inside, so that the first precast concrete module (01) and the second precast concrete module (02) are poured into one body.

2. The method for constructing multi-wall prefabricated modules of an assembled building according to claim 1, characterized in that: In step S2, the first connecting component (2) and the second connecting component (6) are staggered in the horizontal direction, the first connecting component (2) and the second connecting component (6) are arranged in high and low positions, there are two groups of horizontal steel bars (3) and they are tooth-shaped, one group of horizontal steel bars (3) passes through the first steel bar groove (22), and the other group of horizontal steel bars (3) passes through the second steel bar groove; the two groups of horizontal steel bars (3) are staggered in the height direction; the horizontal steel bars (3) passing through the first steel bar groove (22) are placed on the second connecting block, and the horizontal steel bars (3) passing through the second steel bar groove are placed on the first connecting block (21).

3. The method for constructing multi-wall prefabricated modules of an assembled building according to claim 2, characterized in that: In step S2, firstly, two sets of horizontal steel bars (3) are passed through the first steel bar groove (22) and the second steel bar groove respectively and are placed against the wall (1), and then hoisted. After hoisting into place, the two sets of horizontal steel bars (3) are rotated; or, In step S2, after the first precast concrete module (01) is hoisted into place, a group of horizontal steel bars (3) are passed through the first steel bar groove (22) and leaned against the wall (1), another group of horizontal steel bars (3) are passed through the second steel bar groove and leaned against the wall (1), and then the second precast concrete module (02) is hoisted. After the second precast concrete module (02) is hoisted into place, the two groups of rotating horizontal steel bars (3) are rotated; or, In step S2, after the first precast concrete module (01) and the second precast concrete module (02) are hoisted to a preset position, two sets of horizontal steel bars (3) are respectively inserted and rotated.

4. The method for constructing multi-wall prefabricated modules of an assembled building according to claim 2, characterized in that: In step S1, the connecting steel bars (03) further include a plurality of vertical steel bars (4); Step S2 also includes inserting the vertical steel bars (4) into the tooth grooves of the two sets of horizontal steel bars (3).

5. The method for constructing multi-wall prefabricated modules of an assembled building according to claim 2, characterized in that: In step S1, the first connection blocks (21) of the first connection component (2) are distributed at intervals, or the first connection blocks (21) of the first connection component (2) are connected as a whole.

6. The method for constructing multi-wall prefabricated modules of an assembled building according to claim 1, characterized in that: In step S1, the outer ends of the first connection blocks (21) of the first connection assembly (2) are connected as a whole, the outer ends of the second connection blocks of the second connection assembly (6) are connected as a whole, and the connecting steel bars (03) further include a plurality of steel cages (5); In step S2, before installing the horizontal steel bars (3), the steel cage (5) is simultaneously inserted between the adjacent first connection components (2) and the adjacent second connection components (6); In step S2, the horizontal steel bars (3) are divided into two groups, one group of horizontal steel bars (3) is inserted into the steel cage (5) and the first steel groove (22), and the other group of horizontal steel bars (3) is inserted into the steel cage (5) and the second steel groove.

7. The method for constructing multi-wall prefabricated modules of an assembled building according to claim 6, characterized in that: In step S1, the first connecting component (2) and the second connecting component (6) are flush with each other; the first connecting component (2) and the second connecting component (6) are identical.

8. The method for constructing multi-wall prefabricated modules of an assembled building according to claim 1, characterized in that: In step S1, the outer ends of the first connection blocks (21) of the first connection assembly (2) are connected as a whole, and the outer ends of the second connection blocks of the second connection assembly (6) are connected as a whole; In step S2, the first connection component (2) and the second connection component (6) are staggered in the horizontal direction, and the same horizontal steel bar (3) passes through the first steel bar groove (22) and the second steel bar groove.

9. The method for constructing multi-wall prefabricated modules of an assembled building according to claim 8, characterized in that: In step S1, the first connecting component (2) and the second connecting component (6) are identical; the first connecting component (2) and the second connecting component (6) are flush with each other from top to bottom.

10. The method for constructing multi-wall prefabricated modules of an assembled building according to claim 1, characterized in that: In step S1, the first connection assembly (2) includes only the toothed steel bar (23), and the toothed steel bar (23) includes a vertical portion (231) embedded in the wall (1) and an exposed U-shaped portion (232); or, In step S1, the first connection assembly (2) comprises two symmetrical toothed steel bars (23) and a plurality of concrete parts (24), wherein one toothed steel bar (23) comprises a plurality of vertical parts (231) embedded in the wall (1) and a plurality of U-shaped parts (232) outside the wall (1), and the concrete part (24) wraps the U-shaped part (232); or, In step S1, the first connection assembly (2) comprises a steel column cage (26) and a concrete part (24), the concrete part (24) is tooth-shaped, the steel column cage (26) comprises four vertical steel bars (261) and a plurality of annular steel bars (262), and the concrete part (24) wraps the steel column cage (26); or, In step S1, the first connection assembly (2) comprises a ring-shaped steel bar (25) and a plurality of concrete parts (24), the ring-shaped steel bar (25) comprises two vertical steel bars (251) and at least two horizontal steel bars (252), the concrete part (24) is tooth-shaped, and the concrete part (24) wraps around the vertical steel bars (251) and the two horizontal steel bars (252); or, In step S1, the first connection component (2) includes a toothed steel bar (23) and a toothed concrete part (24), the toothed steel bar (23) includes a plurality of vertical parts (231) embedded in the wall (1) and a plurality of U-shaped parts (232) outside the wall (1), and the concrete part (24) wraps the U-shaped part (232).

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