Prefabricated concrete module suitable for fabricated building

Abstract

The utility model relates to a prefabricated concrete module suitable for a fabricated building. The prefabricated concrete module comprises a prefabricated top plate, a prefabricated bearing component perpendicular to the prefabricated top plate and a connecting structure used for connecting the prefabricated top plate and the prefabricated bearing component. The connecting structure comprises a top plate connecting piece, a grouting formwork and a grouting layer. The top plate connecting piece comprises a first embedded part, a rigid connecting piece and a second embedded part; the two vertical ends of the rigid connecting piece are welded to the first embedded part and the second embedded part correspondingly, a first filling groove is formed in the lower edge of the prefabricated top plate, and a second filling groove is defined by the inner wall of the grouting formwork, the top wall of the prefabricated bearing component and the end wall of the prefabricated top plate; the first filling groove is communicated with the second filling groove, the first filling groove is filled with a filling layer, and the second filling groove is grouted to form a grouting layer; the connecting structure has the beneficial effects that the technical problems that the construction difficulty is high and the joint of the components is easy to crack and leak water when the prefabricated top plate in the concrete module is connected with the beam component or the wall component and the like are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fabricated building, especially to a prefabricated concrete module suitable for fabricated building. BACKGROUND

[0002] As a highly integrated fabricated building, the core feature of the concrete modular building is to integrate the main components (such as beam components, wall components, column components, etc.) of the building on the concrete module. The assembly of the two-dimensional prefabricated components of the traditional fabricated building is converted into the assembly of the three-dimensional concrete module at the construction site, which has significant advantages in simplifying the construction process and compressing the construction period.

[0003] In the concrete module of the prior art, when the prefabricated roof is connected with the beam component or the wall component, etc., in order to ensure the continuity of the whole concrete module, the connection and forming of the prefabricated roof with the beam component or the wall component, etc. are usually completed by reserving post-pouring belts on the beam component or the wall component. However, because the forming time of the new and old concrete in the post-pouring area of the post-pouring belt is quite different (the beam component or the wall component is a prefabricated component, which has been cured when used), after the pouring of the post-pouring belt is completed, the joint between the new and old concrete is prone to be not firm, and the durability is low. After being stressed during use, the joint between the new and old concrete is prone to crack, resulting in water seepage. In addition, the construction process of the post-pouring belt is relatively complex, and the construction quality is required to be high. Serious cracking or delamination may occur due to improper operation of workers (such as no chiseling of the old concrete surface, insufficient filling of the concrete, improper installation of the water stop belt, etc.) or construction errors (such as system errors of the prefabricated component during prefabrication, large changes in temperature or humidity, etc.), which has a great impact on the decoration and construction of the subsequent module and forms various quality defects. SUMMARY

[0004] (I) Technical problem to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a prefabricated concrete module suitable for fabricated building, which solves the technical problem that the prefabricated roof and the beam component or the wall component, etc. are difficult to connect and form in the concrete module, and the connection between the components is prone to cracking and water seepage.

[0006] (II) Technical scheme

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the main technical scheme comprising:

[0008] The utility model discloses an embodiment provides a prefabricated concrete module suitable for fabricated building, including prefabricated roof and its vertical setting prefabricated bearing component, prefabricated bearing component is wall component or beam component, its characterized in that, still include the connecting structure for connecting prefabricated roof and prefabricated bearing component,

[0009] The connecting structure comprises a plurality of roof connectors arranged at intervals along the end of the prefabricated roof, and a grouting formwork;

[0010] Each roof connector comprises a first embedded part, a second embedded part, and a rigid connector. The first embedded part is embedded in the top wall of the prefabricated bearing component, the second embedded part is embedded in the end wall of the prefabricated roof, and the rigid connector has two ends that are perpendicular to each other, which are respectively welded to the first embedded part and the second embedded part. The grouting formwork is connected to the rigid connector.

[0011] A first filling groove is provided at the lower edge of the prefabricated roof. The inner wall of the grouting formwork, the top wall of the prefabricated bearing component, and the end wall of the prefabricated roof form a second filling groove. The first filling groove is in communication with the second filling groove. The first filling groove is filled with a filling layer, and the second filling groove is filled with a grouting layer.

[0012] Preferably, the first embedded part is an L-shaped embedded part, the vertical edge of which is vertically arranged and flush with the outer facade of the prefabricated bearing component, and the horizontal edge of which is horizontally arranged and flush with the upper end surface of the prefabricated bearing component.

[0013] The second embedded part is a rectangular embedded part, which is vertically arranged.

[0014] The rigid connector is an angle steel or a channel steel, which is welded at the corner of the L-shaped embedded part and the outer wall of the rectangular embedded part.

[0015] Preferably, the second embedded part comprises a rectangular steel plate and embedded steel bars, which are all embedded into the prefabricated roof and fixedly connected with the steel bars in the prefabricated roof.

[0016] Preferably, the rectangular steel plate further comprises a reserved hole, through which the embedded steel bars are fixedly connected with the rectangular steel plate. The height of the rectangular steel plate in the vertical direction is less than or equal to the width of the end surface of the prefabricated roof.

[0017] Preferably, the first embedded part comprises an L-shaped angle steel and additional steel bars.

[0018] The long side of the L-shaped angle steel constitutes the vertical edge of the first embedded part, and the short side of the L-shaped angle steel constitutes the horizontal edge of the first embedded part. The length of the short side of the L-shaped angle steel is less than the thickness of the prefabricated bearing component.

[0019] The additional steel bars are fixedly connected with the inner wall of the long side of the L-shaped angle steel, and are all embedded into the prefabricated bearing component and fixedly connected with the steel bars in the prefabricated bearing component.

[0020] Preferably, the outer wall of the rigid connecting piece away from the prefabricated roof is flush with the outer facade of the prefabricated load-bearing component, the height of the rigid connecting piece in the vertical direction is less than or equal to the width of the end of the prefabricated roof, and the width of the rigid connecting piece in the horizontal direction is less than the thickness of the prefabricated load-bearing component.

[0021] Preferably, the rigid connecting piece is provided with a clamping piece away from the outer wall of the prefabricated roof, the bottom of the grouting formwork is provided with a clamping groove corresponding to the clamping piece, and the grouting formwork is clamped with the clamping piece through the clamping groove.

[0022] Preferably, the grouting formwork abuts against the outer facade of the prefabricated load-bearing component, and the grouting formwork is fixedly connected with the outer wall of the first embedded part.

[0023] Preferably, the first filling groove is provided through along the length direction of the end of the prefabricated roof, the first filling groove extends above the prefabricated load-bearing component, and the filling layer abuts against the top wall of the prefabricated load-bearing component; the filling layer in the first filling groove is a waterproof layer.

[0024] Preferably, the grouting layer is formed by high-strength mortar grouting, and the filling layer is formed by waterproof mortar filling.

[0025] (Three) beneficial effects

[0026] The prefabricated concrete module of the utility model has the beneficial effects that: in the connecting structure, the roof connecting piece is used, when connecting and fixing, only the prefabricated roof is hoisted, the corresponding rigid connecting piece is aligned with the first embedded part and the second embedded part and welded, and the rigid connection of the prefabricated roof and the prefabricated load-bearing component can be completed; compared with the prior art, the connecting mode of the roof connecting piece is simple, and the connecting speed is faster; and because the specific connecting point of the rigid connecting piece and the first embedded part and the second embedded part in the roof connecting piece can be adjusted, the construction personnel can also adjust the specific connecting position of the prefabricated roof and the prefabricated load-bearing component according to the error existing on the site, which can adjust or compensate the error and prevent larger quality problems.

[0027] The connecting structure further comprises a first filling groove, a filling layer, a second filling groove and a grouting layer, the connecting portion of the prefabricated roof plate and the prefabricated bearing component is sealed and reinforced by the filling layer and the grouting layer, when the joint of the prefabricated roof plate and the prefabricated bearing component is processed, the filling layer is formed by filling the filling material into the first filling groove, the joint is processed, then the grouting layer is formed by filling the grouting material into the second filling groove, the whole connecting structure is reinforced, compared with the prior art, the joint is blocked by filling the filling material into the first filling groove, the filling of the joint is more sufficient and uniform, the filling gap is not prone to appear, and the sealing effect is better, and the prefabricated roof plate and the prefabricated bearing component are rigidly connected by the roof plate connecting piece before grouting, the stress borne by the filling layer and the grouting layer in the connecting structure is smaller, the durability of the filling layer and the grouting layer is higher, the joint is more firmly combined, and the joint is not prone to crack or delamination, and the anti-permeability is stronger. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The prefabricated concrete module is shown in the following specific embodiment;

[0029] Figure 2 The prefabricated concrete module is shown in the following specific embodiment; Figure 1 The prefabricated concrete module is shown in the following specific embodiment;

[0030] Figure 3 The prefabricated concrete module is shown in the following specific embodiment; Figure 1 The prefabricated concrete module is shown in the following specific embodiment;

[0031] Figure 4 The prefabricated concrete module is shown in the following specific embodiment; Figure 1 The prefabricated concrete module is shown in the following specific embodiment;

[0032] Figure 5 The prefabricated concrete module is shown in the following specific embodiment. Figure 1 The prefabricated concrete module is shown in the following specific embodiment.

[0033]

BRIEF DESCRIPTION OF DRAWINGS

[0034] 1: prefabricated roof plate; 2: prefabricated bearing component; 3: roof plate connecting piece; 4: grouting template; 5: first embedded part; 6: second embedded part; 7: rigid connecting piece; 8: first filling groove; 9: second filling groove; 10: rectangular steel plate; 11: embedded steel bar; 12: reserved hole; 13: L-shaped angle steel; 14: additional steel bar; 15: clamping piece; 16: clamping groove; 81: filling layer; 91: grouting layer. DETAILED DESCRIPTION

[0035] In order to better explain the utility model, in order to facilitate understanding, the utility model is described in detail below by specific embodiments combined with the drawings. Wherein, the orientation mentioned in this paper is referred to as the orientation of the reference. Figure 2 .

[0036] Referring to Figures 1-4 , the embodiment provides a prefabricated concrete module suitable for fabricated building, the prefabricated concrete module includes prefabricated roof 1, prefabricated bearing component 2 and connecting structure. Prefabricated roof 1 and prefabricated bearing component 2 are vertically arranged, prefabricated roof 1 is arranged above prefabricated bearing component 2, and the bottom end of prefabricated roof 1 is flush with the top end of prefabricated bearing component 2 but does not contact the top end of prefabricated bearing component 2. Wherein, prefabricated bearing component 2 can be wall component or beam component. The above connecting structure is used to connect prefabricated roof 1 and prefabricated bearing component 2, that is, the connecting structure can be used for the connection and reinforcement of prefabricated roof 1 and wall component, or can be used for the connection and reinforcement of prefabricated roof 1 and beam component.

[0037] Referring to Figure 2 , the connecting structure of the embodiment includes several roof connectors 3 and grouting templates 4 arranged at intervals along the end of prefabricated roof 1. Wherein each roof connector 3 includes first embedded part 5, second embedded part 6 and rigid connector 7. Each roof connector 3 includes first embedded part and second embedded part and rigid connector

[0038] Referring to Figure 2 and Figure 3 , first embedded part 5 is embedded in the top wall of prefabricated bearing component 2. First embedded part 5 is L-shaped embedded part, the vertical edge thereof is vertically arranged and the outer side thereof is flush with the outer facade of prefabricated bearing component 2, and the horizontal edge thereof is horizontally arranged and flush with the upper end surface of prefabricated bearing component 2. Specifically, first embedded part 5 includes L-shaped angle steel 13 and additional steel bar 14, although additional steel bar 14 is added, but it does not hinder the overall L-shaped configuration of first embedded part 5. The long edge of L-shaped angle steel 13 constitutes the vertical edge of first embedded part 5, and the short edge of L-shaped angle steel 13 constitutes the horizontal edge of first embedded part 5; the length of the short edge of L-shaped angle steel 13 is less than the thickness of prefabricated bearing component 2. Additional steel bar 14 is fixedly connected with the inner wall of the long edge of L-shaped angle steel 13, and additional steel bar 14 is embedded into prefabricated bearing component 2 and fixedly connected with the steel bar in prefabricated bearing component 2. Additional steel bar 14 is tied or welded with the steel bar in prefabricated bearing component 2, additional steel bar 14 is symmetrically arranged on both sides of the inner wall of the long edge of L-shaped angle steel 13, and additional steel bar 14 is arranged at least two.

[0039] Referring to Figure 2 and Figure 4The second embedded part 6 is embedded in the end wall of the prefabricated roof 1. The second embedded part 6 is a rectangular embedded part, which is vertically arranged, and the outer wall of the second embedded part 6 is flush with the end surface of the prefabricated roof. Specifically, the second embedded part 6 comprises a rectangular steel plate 10 and embedded steel bars 11, and the overall rectangular configuration of the second embedded part 6 is not affected by the additional embedded steel bars 11. The height of the rectangular steel plate 10 in the vertical direction is less than or equal to the width of the end surface of the prefabricated roof, preferably, the height of the rectangular steel plate 10 in the vertical direction is equal to the width of the end surface of the prefabricated roof, the side wall of the rectangular steel plate 10 is flush with the end of the prefabricated roof, the upper surface of the rectangular steel plate 10 is flush with the upper surface of the prefabricated roof, and the lower surface of the rectangular steel plate 10 is flush with the edge of the first filling groove. The embedded steel bars 11 are symmetrically arranged in the middle of the rectangular steel plate 10, and at least four embedded steel bars 11 are arranged. In order to fix the embedded steel bars 11, the rectangular steel plate 10 comprises a reserved hole 12, the embedded steel bars 11 pass through the reserved hole 12 and are fixedly connected with the rectangular steel plate 10, preferably by welding connection; meanwhile, the embedded steel bars 11 are all embedded into the prefabricated roof 1 and are fixedly connected with the steel bars in the prefabricated roof 1, preferably by binding or welding connection.

[0040] Referring to Figure 2 In the embodiment, the rigid connecting piece 7 is an angle steel, which has two ends vertically arranged, one end is welded at the corner of the L-shaped embedded part, and the other end is welded at the outer wall of the rectangular embedded part. The outer wall of the rigid connecting piece 7 away from the prefabricated roof 1 is flush with the outer facade of the prefabricated bearing member 2, and the width of the rigid connecting piece 7 in the horizontal direction is less than the thickness of the prefabricated bearing member 2; the height of the rigid connecting piece 7 in the vertical direction is less than or equal to the width of the end of the prefabricated roof 1, preferably, the height of the rigid connecting piece 7 in the vertical direction is less than the width of the end of the prefabricated roof 1.

[0041] The first embedded part 5, the second embedded part 6 and the rigid connecting piece 7 are all made of metal, preferably steel; the rigid connecting piece 7 can be selectively welded at different positions of the first embedded part 5 or the second embedded part 6 according to design requirements or actual conditions on site, and the first embedded part 5 or the second embedded part 6 can provide sufficient welding points and welding conditions for the rigid connecting piece 7.

[0042] Of course, the utility model is not limited to this, in other embodiments, the rigid connecting piece 7 can also be selected from channel steels, as long as the two ends of the channel steels can be welded with the first embedded part 5 and the second embedded part 6 respectively.

[0043] Referring to Figure 5Further, the rigid connecting piece 7 is fixedly connected with a clamping piece 15 away from the outer wall of the prefabricated roof 1; the bottom of the grouting formwork 4 is provided with a clamping groove 16 corresponding to the clamping piece 15; the grouting formwork 4 is clamped with the clamping piece 15 through the clamping groove 16. Preferably, the clamping piece 15 is a cylindrical structure, and the clamping groove 16 is a chute with an open bottom. During the upward movement of the grouting formwork 4, the clamping groove 16 smoothly moves downward relative to the clamping piece 15 until the closed end of the clamping groove 16 abuts against the clamping piece 15.

[0044] Referring to Figure 2 The grouting formwork 4 abuts against the outer facade of the prefabricated load-bearing member 2, and the grouting formwork 4 and the outer wall of the first embedded part 5 are fixedly connected through spot welding to prevent the grouting formwork 4 from falling off during grouting. However, the spot welding connection between the grouting formwork 4 and the first embedded part 5 is detachable.

[0045] Referring to Figure 2 The lower edge of the prefabricated roof 1 is provided with a first filling groove 8, and the first filling groove 8 is provided through along the length direction of the end of the prefabricated roof 1. The first filling groove 8 is located above the prefabricated load-bearing member 2, and a filling layer 81 is filled in the first filling groove 8, and the filling layer 81 abuts against the top wall of the prefabricated load-bearing member 2. Preferably, the filling layer 81 is a waterproof layer, which enhances the waterproof performance of the connecting structure, for example, by filling and coating anti-cracking waterproof mortar.

[0046] In addition, the inner wall of the grouting formwork 4, the top wall of the prefabricated load-bearing member 2, and the end wall of the prefabricated roof 1 enclose a second filling groove 9, which communicates with the first filling groove 8. A grouting layer 91 is formed by grouting in the second filling groove 9, and preferably the grouting layer 91 is formed by high-strength mortar grouting.

[0047] As follows, the construction process of the above structure of the present embodiment is described:

[0048] S1: Install the prefabricated load-bearing member 2 to the predetermined position, and then weld the connecting angle steel 7 with the first embedded part 5 correspondingly;

[0049] S2: Hoist the prefabricated roof 1 to the predetermined installation position, weld the connecting angle steel 7 with the second embedded part 6 correspondingly, and complete the rigid connection between the prefabricated load-bearing member 2 and the prefabricated roof 1;

[0050] S3: Perform decoration and treatment inside the prefabricated concrete module, fill anti-cracking waterproof mortar in the first filling groove 8 to form a filling layer 81, and seal the joints;

[0051] S4: Clamping the grouting formwork 4 to the clamping piece 15 outside the connecting angle steel 7, and connecting the grouting formwork 4 with the first embedded part 5 through spot welding, completing the installation and fixation of the grouting formwork 4;

[0052] S5: filling high-strength mortar in the second filling groove 9 to form a grouting layer 91, which completes the forming of the overall structure of the prefabricated concrete module while further reinforcing the connecting structure; and a prefabricated concrete module is obtained.

[0053] In the subsequent construction process, if necessary, the grouting formwork 4 can be knocked off and the clamping piece 15 can be removed by cutting, so that the surface of the obtained prefabricated concrete module is smooth.

[0054] In summary, the prefabricated concrete module of the embodiment, since the top plate connecting piece 3 is used in the connecting structure, when connecting and fixing, only the prefabricated top plate 1 needs to be lifted, and then the corresponding rigid connecting piece 7 is aligned with the first embedded part 5 and the second embedded part 6 and welded to complete the rigid connection of the prefabricated top plate 1 and the prefabricated load-bearing component 2; compared with the prior art, the connecting method of the top plate connecting piece 3 is simple and the connecting speed is faster; and since the specific connecting point of the rigid connecting piece 7 with the first embedded part 5 and the second embedded part 6 in the top plate connecting piece 3 is adjustable, the construction personnel can also adjust the specific connecting position of the prefabricated top plate 1 and the prefabricated load-bearing component 2 according to the existing error situation on site, which can adjust or compensate for the error to prevent large quality problems; at the same time, the L-shaped structure of the first embedded part 5 can further enhance the structural strength of the prefabricated load-bearing component 2 at the corners to prevent the corners of the prefabricated load-bearing component 2 from being damaged during transportation.

[0055] The connecting structure of the embodiment also has the first filling groove 8, the filling layer 81, the second filling groove 9, and the grouting layer 91, which seals and reinforces the connection between the prefabricated top plate 1 and the prefabricated load-bearing component 2, and when processing the joint of the prefabricated top plate 1 and the prefabricated load-bearing component 2, the joint can be directly processed by filling the anti-cracking waterproof material in the first filling groove 8 to form the filling layer 81, and then the reinforcement and sealing of the overall connecting structure can be completed by filling the grouting material in the second filling groove 9; compared with the prior art, since the embodiment blocks the joint by filling the filling material in the first filling groove 8, the filling of the joint is more sufficient and uniform, and it is not easy to have filling gaps and good sealing effect; and since the prefabricated top plate 1 and the prefabricated load-bearing component 2 have been rigidly connected by the top plate connecting piece 3 before grouting, the stress borne by the filling layer 81 and the grouting layer 91 in the connecting structure is smaller, the durability of the filling layer 81 and the grouting layer 91 is higher, the joint is more firmly combined, and it is not easy to have cracks or delamination, and the impermeability is stronger.

[0056] In addition, since the prefabricated top plate 1 and the prefabricated load-bearing component 2 of the embodiment do not need to be provided with post-poured strips when being made, the prefabrication difficulty is lower and the production and manufacturing speed is faster.

[0057] In the description of the utility model, it is necessary to understand that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0058] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium; it can be the communication between two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0059] In the utility model, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature, can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature, can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is lower than that of the second feature.

[0060] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.

[0061] Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the utility model, and those skilled in the art can modify, modify, replace and change the above embodiments within the scope of the utility model.

Claims

1. A prefabricated concrete module for use in a fabricated building, comprising a prefabricated top plate (1) and a prefabricated load-bearing component (2) thereof, which is a wall component or a beam component, characterized in that, The connecting structure is used for connecting the prefabricated roof (1) and the prefabricated bearing component (2); The connecting structure comprises a plurality of roof connectors (3), a grouting formwork (4) arranged at intervals along the end of the prefabricated roof (1); Each roof connector (3) comprises a first embedded part (5), a second embedded part (6) and a rigid connector (7), the first embedded part (5) is embedded in the top wall of the prefabricated bearing component (2), the second embedded part (6) is embedded in the end wall of the prefabricated roof (1), the rigid connector (7) has two ends which are perpendicular to each other and are welded with the first embedded part (5) and the second embedded part (6) respectively, and the grouting formwork (4) is connected with the rigid connector (7); A first filling groove (8) is arranged at the lower edge of the prefabricated roof (1), the inner wall of the grouting formwork (4), the top wall of the prefabricated bearing component (2) and the end wall of the prefabricated roof (1) form a second filling groove (9), the first filling groove (8) is in communication with the second filling groove (9), the first filling groove (8) is filled with a filling layer (81), and the second filling groove (9) is filled with a grouting layer (91).

2. The prefabricated concrete module of claim 1, wherein The first embedded part (5) is an L-shaped embedded part, the vertical edge of which is arranged vertically and flush with the outer vertical surface of the prefabricated bearing component (2), and the horizontal edge of which is arranged horizontally and flush with the upper end surface of the prefabricated bearing component (2); The second embedded part (6) is a rectangular embedded part arranged vertically; The rigid connector (7) is an angle steel or a channel steel, which is welded at the corner of the L-shaped embedded part and the outer wall of the rectangular embedded part.

3. The precast concrete module of claim 2, wherein, The second embedded part (6) comprises a rectangular steel plate (10) and embedded steel bars (11), all of which are embedded into the prefabricated roof (1) and fixedly connected with the steel bars in the prefabricated roof (1).

4. The precast concrete module of claim 3, wherein, The rectangular steel plate (10) further comprises a reserved hole (12), the embedded steel bars (11) pass through the reserved hole (12) and are fixedly connected with the rectangular steel plate (10); the height of the rectangular steel plate (10) in the vertical direction is less than or equal to the width of the end surface of the prefabricated roof (1).

5. The precast concrete module of claim 2, wherein, The first embedded part (5) comprises an L-shaped angle steel (13) and additional steel bars (14); The long edge of the L-shaped angle steel (13) constitutes the vertical edge of the first embedded part (5), and the short edge of the L-shaped angle steel (13) constitutes the horizontal edge of the first embedded part (5); the length of the short edge of the L-shaped angle steel (13) is less than the thickness of the prefabricated bearing component (2); The additional steel bars (14) are fixedly connected with the inner wall of the long edge of the L-shaped angle steel (13), and all of the additional steel bars (14) are embedded into the prefabricated bearing component (2) and fixedly connected with the steel bars in the prefabricated bearing component (2).

6. The precast concrete module of claim 1, wherein, The outer wall of the rigid connecting piece (7) away from the prefabricated roof (1) is flush with the outer facade of the prefabricated load-bearing component (2), the height of the rigid connecting piece (7) in the vertical direction is less than or equal to the width of the end of the prefabricated roof (1); the width of the rigid connecting piece (7) in the horizontal direction is less than the thickness of the prefabricated load-bearing component (2).

7. The precast concrete module of claim 6, wherein, The rigid connecting piece (7) is provided with a clamping piece (15) away from the outer wall of the prefabricated roof (1); the bottom of the grouting formwork (4) is provided with a clamping groove (16) corresponding to the clamping piece (15); the grouting formwork (4) is clamped with the clamping groove (16) and the clamping piece (15).

8. The precast concrete module of claim 7, wherein, The grouting formwork (4) abuts against the outer facade of the prefabricated load-bearing component (2); the grouting formwork (4) is fixedly connected with the outer wall of the first embedded part (5).

9. The prefabricated concrete module of claim 1, wherein, The first filling groove (8) is provided through along the length direction of the end of the prefabricated roof (1), the first filling groove (8) extends above the prefabricated load-bearing component (2), the filling layer (81) abuts against the top wall of the prefabricated load-bearing component (2); the filling layer (81) in the first filling groove (8) is a waterproof layer.

10. The precast concrete module of claim 9, wherein, The grouting layer (91) is formed by high-strength mortar grouting, and the filling layer (81) is formed by waterproof mortar filling.

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