A fabricated wall and a method of assembly

Abstract

The application relates to the field of fabricated buildings, and particularly discloses a fabricated wall body and a fabrication method. The fabricated wall body comprises, from outside to inside, an outer wall plate, a heat preservation layer, a sound insulation layer and an inner wall plate. The outer wall plate and the inner wall plate are both provided with a connecting portion on the same side, and the connecting portions on the opposite sides are both provided with a connecting groove for inserting the connecting portions. The transverse length of the connecting portion is greater than that of the connecting groove, so that a grouting cavity is formed at the wall body connecting position. The connecting portion of the outer wall plate is provided with a grout inlet and a grout outlet. Adjacent fabricated wall bodies are connected in a plug-in mode, and a grouting cavity is reserved at the connecting position, so that mortar can be injected during fabrication and construction, the connecting tightness between the adjacent fabricated wall bodies is improved, and gaps are not prone to occurring, thereby ensuring that the structural strength of the wall body as a whole is excellent and the functionality is perfect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of prefabricated buildings, in particular to a prefabricated wall and an assembling method. BACKGROUND

[0002] Prefabricated buildings refer to a modern building method, which transfers a large amount of on-site operation in the traditional construction method to a factory to realize prefabricated production of building components and accessories. Prefabricated buildings have short construction period, less construction waste, energy saving and environmental protection, and are currently commonly applied to temporary buildings, industrial plants, public buildings and the like.

[0003] As an important component of prefabricated buildings, the prefabricated wall is usually composed of a concrete plate, a thermal insulation plate and a sound insulation plate, which has the advantages of multiple materials and good structural strength, thermal insulation performance and sound insulation performance. However, due to the production precision, gaps inevitably occur at the wall connection, which affects the structural integrity and functionality, and needs to be improved. SUMMARY

[0004] In order to improve the tightness of the wall connection, the present application provides a prefabricated wall and an assembling method.

[0005] In a first aspect, the prefabricated wall provided by the present application adopts the following technical solution:

[0006] The prefabricated wall comprises an outer wall plate, a thermal insulation layer, a sound insulation layer and an inner wall plate arranged in sequence from outside to inside, the same side of the outer wall plate and the inner wall plate is provided with a connecting part, and the opposite side of the same side is provided with a connecting groove for inserting the connecting part, the transverse length of the connecting part is greater than the transverse length of the connecting groove, so that a grouting cavity is formed at the wall connection, and the connecting part of the outer wall plate is provided with a grout inlet and a grout outlet.

[0007] By adopting the above technical solution, the adjacent prefabricated walls are connected in a plug-in manner, and a grouting cavity is reserved at the connection to facilitate the injection of mortar during assembly and construction, thereby improving the connection tightness between the adjacent prefabricated walls, and gaps are not easy to occur, thereby ensuring that the overall structural strength of the wall is excellent and the functionality is perfect.

[0008] Optionally, a plurality of outer steel bars are vertically and spacedly arranged in the outer wall plate, a plurality of inner steel bars are vertically and spacedly arranged in the inner wall plate, and both ends of the outer steel bars and the inner steel bars extend into the grouting cavity; a first connecting piece is arranged between the sides of the outer wall plate and the inner wall plate away from the connecting part, and a second connecting piece is arranged between the sides of the outer wall plate and the inner wall plate close to the connecting part.

[0009] By adopting the technical scheme, on one hand, the outer steel bars and the inner steel bars can improve the strength of the wallboard, and on the other hand, the connection between the outer wallboard, the inner wallboard and the connection column formed by the grouting is more compact, thereby improving the connection strength between the wall bodies.

[0010] Optionally, the first connecting piece and the second connecting piece are both provided with a round hole for the outer steel bar to pass through and a waist-shaped hole for the inner steel bar to pass through, both ends of the outer steel bar are threadedly connected with an outer nut, and both ends of the inner steel bar are threadedly connected with an inner nut.

[0011] By adopting the technical scheme, the four-layer structure of the fabricated wall body is pre-assembled through the first connecting piece and the second connecting piece, the prefabricated production is simple and efficient, and the overall structure of the wall body is stable and reliable.

[0012] Optionally, the first connecting piece and the second connecting piece are both provided with a tensioning part, the tensioning part is provided with a tensioning bolt, the inner wallboard is fixedly connected with a threaded seat, and the tensioning bolt is threadedly connected with the threaded seat.

[0013] By adopting the technical scheme, before the inner nut is tightened, the tensioning bolt is first screwed, so that the outer wallboard and the inner wallboard are close to each other, the sound insulation layer and the thermal insulation layer are clamped, the sound insulation layer and the thermal insulation layer are not prone to have gaps therebetween, and the sound insulation performance and the thermal insulation performance of the wall body are ensured.

[0014] Optionally, a plurality of outer keels are arranged between the outer wallboard and the thermal insulation layer, a plurality of inner keels are arranged between the inner wallboard and the sound insulation layer, and grouting gaps for the mortar to enter are formed between the plurality of outer keels and between the plurality of inner keels.

[0015] By adopting the technical scheme, on one hand, the inner keels and the outer keels can improve the structural strength of the wall body, and on the other hand, the mortar can flow into the outer wallboard and the thermal insulation layer and the inner wallboard and the sound insulation layer along the grouting gaps, the compact connection effect is improved, and the wall body has excellent thermal insulation performance and sound insulation performance.

[0016] Optionally, one end of the outer keel close to the first connecting piece is higher than one end close to the second connecting piece, and one end of the inner keel close to the first connecting piece is lower than one end close to the second connecting piece.

[0017] By adopting the technical scheme, the outer keels and the inner keels are distributed in an X shape, so that the strength of the wall body in the transverse direction and the longitudinal direction is improved.

[0018] Optionally, the first connecting piece is in a plate shape and closes the grouting gap, and the second connecting piece is in a cross shape.

[0019] By adopting the technical scheme, the mortar injected into the grouting gap will not flow into another grouting cavity, and the construction is facilitated.

[0020] Optionally, the outer wall panel and the inner wall panel are both autoclaved aerated concrete panels.

[0021] By adopting the technical scheme, the autoclaved aerated concrete panel is a light and porous green building material, has good heat preservation and insulation performance, and is light in weight, high in strength, and fire resistant.

[0022] Optionally, the heat preservation layer is a vacuum insulation panel, and the sound insulation layer is an EPS sound insulation panel.

[0023] By adopting the technical scheme, the vacuum insulation panel is a high-efficiency heat preservation material, and effectively avoids heat transfer caused by air convection through a vacuum environment, so that the heat conductivity coefficient is greatly reduced. Compared with traditional heat preservation materials, the vacuum insulation panel has a thinner thickness and a smaller volume while achieving the same heat preservation effect. The EPS sound insulation panel is a building material with excellent sound insulation performance, which is light in weight but has high compressive strength, and mainly relies on its sound absorption characteristics and high density to achieve sound insulation effect.

[0024] In a second aspect, the application provides an assembly method using the following technical scheme:

[0025] An assembly method includes the following steps:

[0026] Step 1: Mark the wall installation position on the construction ground and set the embedded steel bars at the wall connection position;

[0027] Step 2: Hoist the assembled wall to the installation position, and smear the mortar between the bottom of the wall and the ground and between the top of the wall and the cross beam to seal the gap;

[0028] Step 3: Inject mortar into the grouting cavity, plug the grouting port and the mortar outlet with a wooden plug after filling, wait for the mortar to solidify, then pull out the wooden plug, and complete the assembly.

[0029] In summary, the application has the following beneficial effects:

[0030] 1. The adjacent assembled walls are connected in a plug-in manner, and a grouting cavity is reserved at the connection position, so that mortar can be injected during assembly and construction, improving the connection tightness between the adjacent assembled walls, and the assembled walls are not prone to have gaps, thereby ensuring excellent structural strength and perfect functionality of the wall as a whole.

[0031] 2. The four-layer structure of the assembled wall is pre-assembled through the first connecting piece and the second connecting piece, and the prefabricated production is simple and efficient, and the overall structure of the wall is stable and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is an exploded schematic view of the assembled wall of the embodiment of the application;

[0033] Figure 2 This is a top view of the prefabricated wall structure according to an embodiment of this application;

[0034] Figure 3 This is a structural schematic diagram of the prefabricated wall according to an embodiment of this application;

[0035] Figure 4 yes Figure 3 Enlarged view of region A in the middle;

[0036] Figure 5 This is a structural schematic diagram of the outer wall panel and the second connector according to an embodiment of this application.

[0037] Explanation of reference numerals in the attached drawings: 1. Insulation layer; 2. Sound insulation layer; 3. Exterior wall panel; 31. External reinforcing bar; 32. External keel; 4. Interior wall panel; 41. Internal reinforcing bar; 42. Internal keel; 5. Connecting part; 51. Grout inlet; 52. Grout outlet; 6. Connecting groove; 7. Grouting cavity; 8. First connecting piece; 81. Round hole; 82. Oblong hole; 83. Tensioning part; 9. Second connecting piece; 10. External nut; 11. Internal nut; 12. Tensioning bolt; 13. Threaded seat; 14. Grouting gap. Detailed Implementation

[0038] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0039] This application discloses a prefabricated wall and its assembly method.

[0040] Reference Figure 1 The prefabricated wall structure comprises, from the outside in, an exterior wall panel 3, an insulation layer 1, a sound insulation layer 2, and an interior wall panel 4. Both the exterior wall panel 3 and the interior wall panel 4 are autoclaved aerated concrete (AAC) panels. The insulation layer 1 is a vacuum insulation panel, and the sound insulation layer 2 is an EPS sound insulation panel. This four-layer composite structure provides excellent structural strength, sound insulation, and thermal insulation, meeting building requirements while being energy-efficient and environmentally friendly.

[0041] Reference Figure 1 , Figure 2 To facilitate rapid horizontal assembly and connection of prefabricated wall panels, both the exterior wall panel 3 and the interior wall panel 4 have an integrally formed connecting part 5 on the same side, and a connecting groove 6 for inserting the connecting part 5 is provided on the opposite side of the same wall panel. The exterior wall panel 3 and the interior wall panel 4 have the same thickness, while the thickness of the connecting part 5 is less than that of the exterior wall panel 3, and the side of the connecting part 5 is flush with the outer side of either the exterior wall panel 3 or the interior wall panel 4. The prefabricated wall panels are joined using a staggered joint method, making on-site construction quick and convenient.

[0042] Reference Figure 1 , Figure 2To improve the tightness of the connection between prefabricated walls, the transverse length of the connecting part 5 is greater than the transverse length of the connecting groove 6. Therefore, there is a gap between the middle of adjacent walls, forming a grouting cavity 7 at the wall connection. The lower end of the connecting part 5 of the exterior wall panel 3 is provided with a grout inlet 51, and the upper end is provided with a grout outlet 52. During assembly construction, mortar is injected, which improves the tightness of the connection between the prefabricated walls, making it less likely for gaps to appear, thereby ensuring excellent overall structural strength and good functionality of the wall.

[0043] Reference Figure 1 , Figure 2 To fill the gaps between the exterior wall panel 3 and the insulation layer 1, and between the interior wall panel 4 and the sound insulation layer 2, multiple external keels 32 are vertically spaced between the exterior wall panel 3 and the insulation layer 1, and are fixedly connected to the exterior wall panel 3. Similarly, multiple internal keels 42 are vertically spaced between the interior wall panel 4 and the sound insulation layer 2, and are fixedly connected to the interior wall panel 4. Both the external keels 32 and the internal keels 42 are made of steel. Grouting gaps 14 are formed between the multiple external keels 32 and between the multiple internal keels 42 for mortar to enter, and these grouting gaps 14 are connected to the grouting cavity 7. On the one hand, the internal keels 42 and the external keels 32 can improve the structural strength of the wall; on the other hand, mortar can flow along the grouting gaps 14 into the gaps between the exterior wall panel 3 and the insulation layer 1, and between the interior wall panel 4 and the sound insulation layer 2, improving the tight connection and giving the wall excellent thermal insulation and sound insulation performance.

[0044] Reference Figure 1 , Figure 2 To further improve the structural strength of the prefabricated wall, multiple external reinforcing bars 31 are inserted vertically at intervals in the outer wall panel 3, and multiple internal reinforcing bars 41 are inserted vertically at intervals in the inner wall panel 4. Both the external reinforcing bars 31 and the internal reinforcing bars 41 are arranged horizontally. The two ends of the external reinforcing bars 31 extend out of the outer wall panel 3, and the two ends of the internal reinforcing bars 41 extend out of the inner wall panel 4, so that when the walls are connected, both ends of the external reinforcing bars 31 and the internal reinforcing bars 41 extend into the corresponding grouting cavities 7, thereby improving the overall structural strength of the wall and the connection strength between the walls.

[0045] Reference Figure 1 , Figure 3 To improve the prefabrication efficiency of modular walls, a first connector 8 is provided between the exterior wall panel 3 and the interior wall panel 4 on the side away from the connecting part 5, and a second connector 9 is provided between the exterior wall panel 3 and the interior wall panel 4 on the side closer to the connecting part 5. Both the first connector 8 and the second connector 9 are made of steel. The four-layer composite structure is fixed by the first connector 8 and the second connector 9 without the need for adhesive bonding, thus improving production efficiency.

[0046] Reference Figure 4 , Figure 5The first connector 8 is plate-shaped and closes the grouting gap 14, preventing mortar from flowing through the first connector 8 into another grouting chamber 7, thereby isolating multiple grouting chambers 7 and allowing for segmented grouting, resulting in high grouting quality and high construction efficiency. The second connector 9 is grid-shaped and does not completely block the grouting gap 14, allowing mortar in the grouting chamber 7 to flow into the grouting gap 14 through the second connector 9.

[0047] Reference Figure 4 , Figure 5 Both the first connector 8 and the second connector 9 are provided with a round hole 81 for the outer reinforcing bar 31 to pass through and a slotted hole 82 for the inner reinforcing bar 41 to pass through. The length of the slotted hole 82 is arranged transversely. Both ends of the outer reinforcing bar 31 are threaded with an outer nut 10, which abuts against the first connector 8 or the second connector 9. Both ends of the inner reinforcing bar 41 are threaded with an inner nut 11, which abuts against the first connector 8 or the second connector 9. By tightening the outer nuts 10 and the inner nuts 11, the connection and fixation of the four-layer composite structure can be completed.

[0048] Reference Figure 1 , Figure 4 To reduce gaps between structural layers, both the first connector 8 and the second connector 9 are integrally formed with tensioning parts 83. Tensioning bolts 12 are threaded through the tensioning parts 83 laterally. Threaded seats 13 are fixedly connected to both sides of the inner wall panel 4, and the tensioning bolts 12 are threadedly connected to the threaded seats 13. Before tightening the inner nut 11, the tensioning bolts 12 are tightened first, so that the outer wall panel 3 and the inner wall panel 4 are brought closer together, clamping the sound insulation layer 2 and the thermal insulation layer 1. This prevents gaps from forming between the sound insulation layer 2 and the thermal insulation layer 1, thereby ensuring the sound insulation and thermal insulation performance of the wall.

[0049] Reference Figure 1 , Figure 5 The end of the outer keel 32 closest to the first connector 8 is higher than the end closest to the second connector 9, and the end of the inner keel 42 closest to the first connector 8 is lower than the end closest to the second connector 9. The outer keel 32 and the inner keel 42 are arranged in an X-shape, which improves the strength of the wall in both the horizontal and vertical directions.

[0050] An assembly method includes the following steps:

[0051] Step 1: Mark the wall installation position on the construction ground and set up pre-embedded steel bars at the wall connection. The position of the pre-embedded steel bars is at the lower end of the grouting cavity 7.

[0052] Step 2: Hoist the prefabricated wall panels one by one to the installation location, and apply mortar between the bottom of the wall and the ground, as well as between the top of the wall and the beam, to seal the gaps;

[0053] Step 3: Inject mortar into the grouting cavity 7. After the mortar fills the grouting cavity 7 and the grouting gap 14, plug the grout inlet 51 and the grout outlet 52 with a wooden plug. Let it stand and wait for the mortar to solidify. Then remove the wooden plug to complete the assembly.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fabricated wall, comprising, from the outside to the inside, an outer wall panel (3), a thermal insulation layer (1), a sound insulation layer (2) and an inner wall panel (4), characterized in that: The same side of the outer wall panel (3) and the inner wall panel (4) is provided with a connecting part (5), and the opposite side is provided with a connecting groove (6) for inserting the connecting part (5), the transverse length of the connecting part (5) is greater than the transverse length of the connecting groove (6), so that the wall connecting part forms a grouting cavity (7), the connecting part (5) of the outer wall panel (3) is provided with a grout inlet (51) and a grout outlet (52); A plurality of outer keels (32) are arranged between the outer wall panel (3) and the thermal insulation layer (1), and a plurality of inner keels (42) are arranged between the inner wall panel (4) and the sound insulation layer (2), and a plurality of grouting gaps (14) for entering the mortar are formed between the plurality of outer keels (32) and the plurality of inner keels (42); A first connecting piece (8) is arranged between the sides of the outer wall panel (3) and the inner wall panel (4) away from the connecting part (5), and a second connecting piece (9) is arranged between the sides of the outer wall panel (3) and the inner wall panel (4) close to the connecting part (5), wherein the first connecting piece (8) is a plate type and closes the grouting gap (14), and the second connecting piece (9) is a cross type and does not completely block the grouting gap (14); A plurality of outer steel bars (31) are arranged in the outer wall panel (3) along the vertical direction, a plurality of inner steel bars (41) are arranged in the inner wall panel (4) along the vertical direction, both ends of the outer steel bars (31) and the inner steel bars (41) extend into the grouting cavity (7), both ends of the outer steel bars (31) are threadedly connected with outer nuts (10), and both ends of the inner steel bars (41) are threadedly connected with inner nuts (11); The first connecting piece (8) and the second connecting piece (9) are respectively provided with a circular hole (81) for the outer steel bars (31) to pass through and a waist-shaped hole (82) for the inner steel bars (41) to pass through, the first connecting piece (8) and the second connecting piece (9) are provided with a tensioning part (83), the tensioning part (83) is provided with a tensioning bolt (12), the inner wall panel (4) is fixedly connected with a threaded seat (13), and the tensioning bolt (12) is threadedly connected with the threaded seat (13); The outer keel (32) is higher at one end close to the first connecting piece (8) than at one end close to the second connecting piece (9), and the inner keel (42) is lower at one end close to the first connecting piece (8) than at one end close to the second connecting piece (9).

2. The fabricated wall of claim 1, wherein: The outer wall panel (3) and the inner wall panel (4) are both autoclaved aerated concrete panels.

3. The fabricated wall of claim 1, wherein: The thermal insulation layer (1) is a vacuum insulation panel, and the sound insulation layer (2) is an EPS sound insulation panel.

4. A method of assembly, characterized in that, The method comprises the following steps: Step one, mark the wall installation position on the construction ground and set the embedded steel bars at the wall connecting part; Step two, hoist the assembled wall of any one of claims 1 to 3 to the installation position, and smear the mortar between the wall bottom and the ground and between the wall top and the cross beam to close the gap; Step three, inject the mortar into the grouting cavity (7), plug the grout inlet (51) and the grout outlet (52) with wooden plugs after filling, wait for the mortar to solidify, pull out the wooden plugs, and complete the assembly.

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