Curtain wall assembly unit and preparation method and application thereof

Abstract

A curtain wall assembly unit relates to the technical field of curtain walls and comprises a concrete plate, the concrete plate comprises a decorative surface and a mounting surface which are arranged oppositely, and two opposite side walls, adjacent to the decorative surface and the mounting surface, of the concrete plate are provided with assembly protrusions which are arranged in a staggered mode; the reinforcing layer is arranged in the concrete slab; the stone surface layer is arranged on the decorative surface of the concrete slab; the plurality of connecting pieces are uniformly distributed between the inner side and the outer side of one side of the mounting surface of the concrete slab, and the plurality of connecting pieces are fixedly connected with the reinforcing layer; the invention further provides a preparation method. The preparation method comprises the following steps that S1, a plurality of bolt sleeves are pre-buried in a mold; s2, alkali-resisting gridding cloth and a reinforcing mesh are laid in the mold in sequence, then a plurality of bolt sleeves penetrate through the alkali-resisting gridding cloth, then limiting plates are fixedly installed, and each limiting plate is fixedly connected with the reinforcing mesh; s3, concrete is poured into the mold, then a plurality of sheet stones are embedded, and steam curing is carried out after the sheet stones are vibrated to be compact; and S4, after curing is completed, natural cooling is conducted for standby application.

Description

Technical Field

[0001] The invention relates to the technical field of curtain walls, and in particular to a curtain wall assembly unit and a preparation method and application thereof. Background Art

[0002] Dry hanging stone curtain wall is a modern building exterior wall decoration technology, which uses metal hangers to fix the stone on the main structure of the building, so that a certain cavity is formed between the stone and the wall. This technology not only improves the beauty of the building's exterior wall, but also has the advantages of moisture-proof, sound insulation, and heat insulation.

[0003] The existing dry-hanging stone curtain wall is divided into hook type and back bolt type. The hook type dry-hanging stone is to insert the metal hanger into the stone edge groove, glue it in the groove with epoxy resin glue or dry-hanging quick-drying glue, and fix it to the installed metal frame with bolts; the back bolt type dry-hanging stone is a special column cone anchor bolt. A hole is drilled on the back of the stone to ensure the accurate drilling depth and size. The anchor bolt is installed in the conical hole without expansion force and tightened, and then hung on the installed frame.

[0004] In the Chinese utility model patent with the authorization announcement number CN215563656U, a dry-hanging stone curtain wall is disclosed, in which the stones used are of regular shape and uniform size, which is convenient for dry-hanging installation. However, for natural stones, their area is small, and their shapes are irregular and their sizes vary. Without processing them, neither the hook type nor the back bolt type can be well applied to the installation of natural stones. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a curtain wall assembly unit and a preparation method and application thereof, which solves the problem that the existing dry hanging method in the prior art cannot be applied to natural stone.

[0006] A curtain wall assembly unit, comprising

[0007] A concrete slab, comprising a decorative surface and an installation surface arranged opposite to each other, wherein two opposite side walls of the concrete slab adjacent to the decorative surface and the installation surface are both provided with assembly protrusions, and the two assembly protrusions are arranged in a staggered manner;

[0008] reinforcement layer, which is built into the concrete slab;

[0009] a stone facing disposed on the decorative surface of the concrete slab; and

[0010] A plurality of connecting pieces are evenly distributed between the inner and outer sides of one side of the installation surface of the concrete slab, and the plurality of connecting pieces are fixedly connected to the reinforcement layer.

[0011] Compared with the prior art, the present invention has the following beneficial effects: the present invention increases the integrity and installability of the curtain wall assembly unit by adding a reinforcement layer in the concrete slab, and pre-buries a number of connectors in the concrete slab, which can effectively solve the problem of requiring post-hole opening when natural stone is hung by back bolts, and can ensure the assembly quality and aesthetics of the curtain wall assembly unit.

[0012] Preferably, the reinforcement layer includes an alkali-resistant mesh cloth and a steel mesh fixedly installed in the concrete slab parallel to the decorative surface and the installation surface of the concrete slab. The alkali-resistant mesh cloth is arranged close to the installation surface of the concrete slab, and the steel mesh is arranged close to the decorative surface of the concrete slab. A number of connecting parts penetrate the alkali-resistant mesh cloth and are fixedly connected to the steel mesh.

[0013] Preferably, each of the connecting parts includes a bolt sleeve fixedly penetrating between the inner and outer sides of one side of the concrete slab installation surface and a limit plate fixedly connected to the steel mesh, and the bolt sleeve is fixedly connected to the limit plate after penetrating the alkali-resistant mesh cloth.

[0014] Preferably, the stone surface layer comprises a plurality of thin-sheet stones embedded in the decorative surface of the concrete slab.

[0015] Preferably, the concrete slab is a hyperbolic structure.

[0016] The present invention also provides a method for preparing a curtain wall assembly unit, comprising the following steps:

[0017] S1. Pre-embed several bolt sleeves in the mold;

[0018] S2. Lay the alkali-resistant mesh cloth and the steel mesh in the mold in sequence, and then install the limit plates after several bolt sleeves penetrate the alkali-resistant mesh cloth, and each limit plate is fixedly connected to the steel mesh;

[0019] S3. Pour concrete into the mold, then embed several thin stone pieces, vibrate and compact them, and then steam cure them;

[0020] S4. After curing, cool naturally for standby use.

[0021] Preferably, in step S3, before pouring the concrete, a release agent needs to be applied on the inner wall of the mold.

[0022] Preferably, in step S3, when embedding the plurality of thin-flaked stones, the plurality of thin-flaked stones protrude from the concrete surface by 5 mm.

[0023] Preferably, in step S3, the temperature during steam curing is less than 80°C, the relative humidity is maintained at 95% during the constant temperature heating stage, and the temperature is lowered after curing for 24 hours at a rate of 20-30°C / hour.

[0024] The invention also provides an application of a curtain wall assembly unit in a hyperbolic outward-inclined curtain wall system.

[0025] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of an embodiment of a curtain wall assembly unit of the present invention.

[0027] Figure 2 for Figure 1 Schematic diagram of the structure from another angle.

[0028] Figure 3 It is a structural schematic diagram of another embodiment of the curtain wall assembly unit of the present invention.

[0029] Figure 4 for Figure 1 Schematic diagram of the layered preparation of curtain wall assembly units.

[0030] The numbers in the figure are: 1. concrete slab; 2. alkali-resistant mesh cloth; 3. steel mesh; 4. thin stone; 5. bolt sleeve; 51. limit plate; 6. mold. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and functions of the present invention clearer and easier to understand, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments:

[0032] like Figure 1-4 As shown, an embodiment of the present invention provides a curtain wall assembly unit, including a concrete slab 1, which includes a decorative surface and an installation surface arranged opposite to each other, and two opposite side walls of the concrete slab 1 adjacent to its decorative surface and installation surface are provided with assembly protrusions, and the two assembly protrusions are arranged alternately; a reinforcement layer, which is built into the concrete slab 1; a stone surface layer, which is arranged on the decorative surface of the concrete slab 1; and a plurality of connecting parts, which are evenly distributed between the inner and outer sides of one side of the installation surface of the concrete slab 1, and the plurality of connecting parts are fixedly connected to the reinforcement layer.

[0033] By adding a reinforcement layer in the concrete slab 1 to improve the integrity and installability of the curtain wall assembly unit, and pre-embedding a number of connectors in the concrete slab 1, the problem of requiring post-hole drilling when using a back-bolt dry hanging method for natural stone can be effectively solved, and the assembly quality and aesthetics of the curtain wall assembly unit can be ensured.

[0034] The reinforcement layer includes an alkali-resistant mesh cloth 2 and a steel mesh 3 fixedly installed in the concrete slab 1 parallel to the decorative surface and the installation surface of the concrete slab 1, wherein the alkali-resistant mesh cloth 2 is arranged close to the installation surface of the concrete slab 1, and the steel mesh 3 is arranged close to the decorative surface of the concrete slab 1, and a plurality of connectors penetrate the alkali-resistant mesh cloth 2 and are fixedly connected to the steel mesh 3; wherein the alkali-resistant mesh cloth 2 can make the concrete slab 1 itself more compact, ensuring that it does not have a honeycombed surface; and the steel mesh 3 can enhance the integrity, shear strength, durability and safety of the concrete slab 1 as a whole.

[0035] Each of the connecting parts includes a bolt sleeve 5 fixedly passed through the inner and outer sides of one side of the installation surface of the concrete slab 1 and a limiting plate 51 fixedly connected to the steel mesh 3. The bolt sleeve 5 is fixedly connected to the limiting plate 51 after passing through the alkali-resistant mesh cloth 2; the limiting plate 51 ensures the fixation with the steel mesh 3, ensures the stability of the fixation of the bolt sleeve 5, and enhances the pulling force of the bolt sleeve 5; and preferably, four bolt sleeves 5 are provided and arranged in a rectangular shape.

[0036] The stone surface layer includes a plurality of thin-sheet stones 4 embedded in the decorative surface of the concrete slab 1 , which can further enhance the strength of the concrete slab 1 and improve the aesthetics of the concrete slab 1 .

[0037] like Figure 3 As shown, according to another embodiment of the present invention, in the curtain wall assembly unit, preferably, the concrete slab 1 is a hyperbolic structure, so that it can be suitable for the assembly of curtain walls of different shapes.

[0038] The present invention also provides a method for preparing a curtain wall assembly unit, comprising the following steps:

[0039] S1. Pre-embed a number of bolt sleeves 5 in the mold 6;

[0040] S2. Alkali-resistant mesh cloth 2 and steel mesh 3 are laid in the mold 6 in sequence, and then a plurality of bolt sleeves 5 are passed through the alkali-resistant mesh cloth 2 and fixedly installed with the limit plate 51, and each limit plate 51 is fixedly connected to the steel mesh 3;

[0041] S3. Pour concrete into the mold 6, then embed several thin stone sheets 4, vibrate and compact, and steam cure;

[0042] S4. After curing, cool naturally for standby use.

[0043] Preferably, in step S3, before pouring the concrete, a release agent needs to be applied to the inner wall of the mold 6 to facilitate the removal of the concrete from the mold 6 after solidification.

[0044] Preferably, in step S3, when embedding the plurality of thin-flaked stones 4, the plurality of thin-flaked stones 4 protrude 5 mm from the concrete surface, so as to facilitate subsequent filling of gaps between the thin-flaked stones 4 to improve the overall aesthetics.

[0045] Preferably, in step S3, the temperature during steam curing is less than 80°C, and the relative humidity is maintained at 95% during the constant temperature heating stage to prevent cracking of the concrete surface; the temperature is lowered after 24 hours of curing, and the cooling rate is 20-30°C / hour to avoid cracking of the concrete or problems with its internal stress caused by sudden cooling; steam curing can accelerate the hydration and hardening process of concrete.

[0046] And preferably, the thickness of the curtain wall assembly unit prepared above does not exceed 60 mm. If it is too thick, the curtain wall assembly unit will be too heavy, which will cause the subsequent curtain wall system assembly requirements to be too high and increase costs; if it is too thin, the concrete slab 1 in the curtain wall assembly unit will be easy to crack, causing the thin stone 4 to fall off, and the safety is poor.

[0047] The present invention also provides an application of a curtain wall assembly unit in a hyperbolic outward-inclined curtain wall system, wherein the structure of the hyperbolic outward-inclined curtain wall system is a barrel-shaped structure that is larger at the top and smaller at the bottom. When using the curtain wall assembly unit of the present invention for installation, it is necessary to determine the installation point of the curtain wall assembly unit on the keel steel frame, and then fix the back bolt hanger on the four bolt sleeves 5 on each concrete slab 1, and fix the back bolt hanger to the corresponding point on the keel steel frame to complete the installation of one curtain wall assembly unit, and then install the remaining curtain wall assembly units in the same manner according to the above method. During the installation process, the assembly protrusions of two adjacent concrete slabs 1 overlap each other. After the installation is completed, the gaps between the thin-flaked stones 4 and the gaps between two adjacent concretes are filled and compacted with a color-adjusting mortar similar in color to the thin-flaked stones 4, and finally the seams are wiped and cleaned, thereby completing the installation of the hyperbolic outward-inclined curtain wall system; wherein the specific structure and use principle of the back bolt hanger belong to the prior art and are not described in detail here.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A curtain wall assembly unit, characterized in that: include A concrete slab (1) comprising a decorative surface and an installation surface arranged opposite to each other, wherein two opposite side walls of the concrete slab (1) adjacent to the decorative surface and the installation surface are both provided with assembly protrusions, and the two assembly protrusions are arranged in a staggered manner; A reinforcement layer built into the concrete slab (1); A stone surface layer, which is arranged on the decorative surface of the concrete slab (1); and A plurality of connecting pieces are evenly distributed between the inner and outer sides of one side of the installation surface of the concrete slab (1), and the plurality of connecting pieces are fixedly connected to the reinforcement layer.

2. A curtain wall assembly unit according to claim 1, characterized in that: The reinforcing layer comprises an alkali-resistant mesh cloth (2) and a steel mesh sheet (3) fixedly installed therein parallel to the decorative surface and the installation surface of the concrete slab (1); the alkali-resistant mesh cloth (2) is arranged close to the installation surface of the concrete slab (1); the steel mesh sheet (3) is arranged close to the decorative surface of the concrete slab (1); and a plurality of connecting pieces penetrate the alkali-resistant mesh cloth (2) and are fixedly connected to the steel mesh sheet (3).

3. A curtain wall assembly unit according to claim 2, characterized in that: Each of the connecting parts comprises a bolt sleeve (5) fixedly penetrating between the inner and outer sides of one side of the installation surface of the concrete slab (1) and a limit plate (51) fixedly connected to the steel mesh (3); the bolt sleeve (5) is fixedly connected to the limit plate (51) after penetrating the alkali-resistant mesh cloth (2).

4. The curtain wall assembly unit according to claim 1, characterized in that: The stone surface layer comprises a plurality of thin-slab stones (4) embedded on the decorative surface of the concrete slab (1).

5. The curtain wall assembly unit according to claim 1, characterized in that: The concrete slab (1) is a hyperbolic structure.

6. A method for preparing a curtain wall assembly unit according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1. Pre-embed a number of bolt sleeves (5) in the mold (6); S2. Lay the alkali-resistant mesh cloth (2) and the steel mesh (3) in the mold (6) in turn, then pass a plurality of bolt sleeves (5) through the alkali-resistant mesh cloth (2) and then fix the limit plates (51) thereon, and each limit plate (51) is fixedly connected to the steel mesh (3); S3. Pour concrete into the mold (6), then embed several thin stone sheets (4), vibrate and compact, and steam cure; S4. After curing, cool naturally for standby use.

7. The method for preparing a curtain wall assembly unit according to claim 6, characterized in that: In step S3, before pouring the concrete, a release agent needs to be applied on the inner wall of the mold (6).

8. The method for preparing a curtain wall assembly unit according to claim 6, characterized in that: In step S3, when embedding the plurality of thin-flaked stones (4), the plurality of thin-flaked stones (4) protrude 5 mm from the concrete surface.

9. The method for preparing a curtain wall assembly unit according to claim 6, characterized in that: In step S3, the temperature during steam curing is less than 80°C, the relative humidity is maintained at 95% during the constant temperature heating stage, and the temperature is lowered after curing for 24 hours at a rate of 20 to 30°C per hour.

10. Application of a curtain wall assembly unit according to any one of claims 1 to 5 in a hyperbolic outward-inclined curtain wall system.

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