A method for preparing a steel mesh mold sandwich thermal insulation integrated prefabricated wall and a prefabricated wall prepared by the method

Abstract

The application provides a preparation method of a steel mesh mold sandwich heat preservation integrated prefabricated wall and a prefabricated wall prepared by the method, and belongs to the technical field of fabricated buildings. The method comprises the following steps: sandwiching and fixing a heat preservation plate between a first steel mesh plate and a second steel mesh plate to assemble a heat preservation combined inner mold; arranging an outer leaf plate steel mesh in a pouring mold and pouring outer leaf plate concrete; placing the heat preservation combined inner mold in the pouring mold in a manner that the first steel mesh plate faces the outer leaf plate steel mesh, so that the first steel mesh plate is embedded and anchored in the outer leaf plate concrete; arranging an inner leaf plate steel mesh on the heat preservation combined inner mold and pouring inner leaf plate concrete, so that the second steel mesh plate is embedded and anchored in the inner leaf plate concrete. The steel mesh plate is directly embedded in the concrete to realize anchoring, without the need for special shotcreting equipment and skilled workers, so that the equipment investment and labor cost are reduced; meanwhile, the heat preservation plate is completely wrapped by the steel mesh plate and the concrete, so that cold and hot bridges and leakage paths are eliminated, and the connection reliability and integrity of the heat preservation layer and the wall body are improved.

Description

Technical Field

[0001] This invention relates to the field of prefabricated building technology, and in particular to a method for preparing a prefabricated wall with integrated steel mesh mold and thermal insulation, and the prefabricated wall prepared therefrom. Background Technology

[0002] Currently, in the field of non-load-bearing interior partition walls, a widely used construction system is the hollow internal formwork metal mesh cement internal partition wall technology (as shown in Figure 03J112). This technology uses cold-bent corrugated metal mesh as a permanent internal formwork, which is assembled into a framework using upper and lower side joists and vertical joists. Cement mortar is then sprayed or applied to both sides of the framework to form a lightweight composite wall with vertical cavities. This wall has the advantages of light weight, good sound insulation, excellent fire resistance, and no need for formwork, and has been widely used in infill walls and partition walls of frame structures.

[0003] However, the aforementioned existing technologies have revealed significant limitations in their widespread application. Firstly, to ensure that the cement mortar fully penetrates the mesh of the corrugated wire mesh and forms a reliable mechanical bond, while preventing mortar rebound, specialized mortar spraying machines must be used for high-pressure spraying. This type of spraying equipment is expensive, and the costs of equipment maintenance, cleaning, and pipeline wear significantly increase upfront investment. Secondly, the spraying process demands extremely high skill levels from operators: spraying distance, angle, air pressure, and the thickness of each coat must be strictly controlled; otherwise, common quality defects such as mortar flow or uneven thickness are easily encountered. Therefore, construction companies must hire experienced skilled workers, whose daily wages are far higher than those of ordinary bricklayers, resulting in high labor costs. These combined factors of high equipment barriers and heavy reliance on manual labor make this technology uneconomical in small and medium-sized projects, severely hindering its large-scale promotion.

[0004] It should be noted that the information disclosed in the background section of this invention is intended only to enhance the understanding of the general background of this invention, and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] This summary is provided to introduce, in a simplified form, some concepts that will be further described in the following detailed description. This summary is not intended to identify key or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

[0006] The present invention aims to solve the above-mentioned problems existing in the prior art and provide a novel method for preparing a precast wall with integrated steel mesh sandwich insulation.

[0007] To achieve the above objectives, the present invention first provides a method for preparing a precast steel mesh sandwich insulation integrated wall, comprising the following steps: Assemble the thermal insulation combination inner mold, which includes at least a first steel mesh plate, a thermal insulation plate, and a second steel mesh plate, and clamp and fix the thermal insulation plate between the first steel mesh plate and the second steel mesh plate; An outer leaf plate steel mesh is installed inside the casting mold; The outer leaf plate concrete is poured into the casting mold and the outer leaf plate steel mesh is covered. Install the thermal insulation combination inner mold, and place the thermal insulation combination inner mold in the casting mold with the first steel mesh plate facing the outer leaf plate steel mesh, and anchor the first steel mesh plate in the outer leaf plate concrete in an embedded manner; An inner leaf plate steel mesh is provided on the inner mold of the insulation assembly; The inner blade plate concrete is poured into the casting mold and the inner blade plate steel mesh is covered. The second steel mesh plate is then embedded and anchored in the inner blade plate concrete.

[0008] Preferably, it also includes setting structural columns; the casting mold forms the forming space of the steel mesh mold sandwich insulation integrated precast wall, and the structural column steel cage is arranged at the wall edge or in the middle of the wall within the casting mold.

[0009] Preferably, the structural column reinforcement cage is disposed between the outer leaf plate reinforcement mesh and the inner leaf plate reinforcement mesh.

[0010] Preferably, when a structural column is set in the wall position within the casting mold, the number of the insulation combination inner molds is at least two, and the structural column reinforcement cage is located between two adjacent insulation combination inner molds; when a structural column is set in the wall side position within the casting mold, the structural column reinforcement cage is located between the insulation combination inner mold and the side mold of the casting mold.

[0011] Preferably, the outer leaf plate concrete and the inner leaf plate concrete are poured together at the structural column reinforcement cage; an outer leaf plate pouring space is formed between the inner mold of the insulation assembly and the mold platform of the pouring mold, and the outer leaf plate reinforcement mesh is placed in the outer leaf plate pouring space; an inner leaf plate pouring space is formed above the inner mold of the insulation assembly, and the inner leaf plate reinforcement mesh is placed in the inner leaf plate pouring space; the outer leaf plate pouring space and the inner leaf plate pouring space are connected through the structural column reinforcement cage.

[0012] Preferably, it also includes setting an edge seal, wherein the casting mold forms the forming space of the steel mesh sandwich insulation integrated precast wall, and concrete is poured between the side mold in the casting mold and the inner mold of the insulation combination to form an edge seal.

[0013] Preferably, the outer leaf plate concrete and the inner leaf plate concrete are poured together at the sealing edge; an outer leaf plate pouring space is formed between the inner mold of the insulation assembly and the mold platform of the pouring mold, and the outer leaf plate reinforcing mesh is placed in the outer leaf plate pouring space; an inner leaf plate pouring space is formed above the inner mold of the insulation assembly, and the inner leaf plate reinforcing mesh is placed in the inner leaf plate pouring space; the outer leaf plate pouring space and the inner leaf plate pouring space are connected through the pouring space of the sealing edge.

[0014] Preferably, the first steel mesh is a flat mesh or a wavy mesh; the second steel mesh is a flat mesh or a wavy mesh.

[0015] Preferably, when the first steel mesh is a corrugated mesh, when the outer leaf plate concrete initially sets, a groove adapted to the protrusion shape of the corrugated mesh is pressed out on the surface of the outer leaf plate concrete using a tool; the protrusion of the first steel mesh is embedded in the groove and anchored to the outer leaf plate concrete.

[0016] Preferably, the slump of the outer leaf plate concrete at initial setting is 20~50mm.

[0017] Preferably, the space on the side of the corrugated mesh facing the insulation board is filled with auxiliary foamed insulation material.

[0018] Preferably, when installing the inner formwork of the insulation assembly, anti-floating tie-and-fixture components are provided on the inner formwork of the insulation assembly, and the tie-and-fixture components are at least tied to the steel mesh of the outer leaf plate.

[0019] Preferably, the tie fastener is a tie member, which includes a main body and hooks at both ends of the main body; the main body passes through the inner mold of the insulation assembly, and the hooks at both ends of the main body hook the outer leaf plate steel mesh and the inner leaf plate steel mesh respectively.

[0020] The present invention also provides a precast wall with integrated steel mesh sandwich insulation, which is prepared according to the above-described preparation method.

[0021] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: 1. Completely eliminate reliance on specialized shotcrete equipment, significantly reducing equipment investment. This invention revolutionizes the traditional "on-site spraying and forming" process for hollow internal molded metal mesh cement partition walls into a "factory-cast layered casting" process. The steel mesh plate no longer serves as the internal mold for on-site spraying, but rather as a reinforcing connector that is integrally anchored to the concrete during the prefabrication stage. The entire production process requires only a conventional concrete mixing plant and ordinary vibration equipment, eliminating the need to purchase expensive specialized mortar spraying machines and their associated high-pressure delivery pipeline systems. This significantly lowers the fixed asset investment threshold for production enterprises, making it particularly beneficial for the promotion and application of this technology in small and medium-sized precast component factories.

[0022] 2. Eliminate reliance on skilled shotcrete technicians, reducing labor costs and quality fluctuations. In traditional processes, the distance, angle, air pressure, and thickness of each coat of mortar spraying all require precise control by experienced technicians. Even slight errors can lead to common quality problems such as uneven flow. This invention employs factory-scale layered pouring, where concrete pouring and vibration are standardized assembly line operations, which can be performed by ordinary concrete workers after short-term training. This ensures high consistency in worker operations, eliminating reliance on individual skill in wall construction and effectively solving the problem of inconsistent project quality caused by staff turnover, while also significantly reducing labor costs.

[0023] 3. The steel mesh is mechanically anchored, and the reliability of the insulation layer connection is superior to that of traditional tie-down components. This invention achieves a mechanically interlocking anchorage between the steel mesh and concrete by embedding the first and second steel mesh plates into the outer and inner leaf plate concrete, respectively. Compared to traditional sandwich insulation walls that rely on separate FRP connectors or metal tie rods to connect the inner and outer leaf plates, the steel mesh plate itself acts as the connector, providing a large and uniformly distributed anchorage area. In particular, when a corrugated mesh is used, the wedge-shaped anchorage effect created by the wave crests embedded in the concrete significantly enhances the anti-peeling ability and shear bearing capacity between the insulation layer and the structural layer, avoiding the risk of loosening or breakage that may occur with traditional connectors under long-term loads or temperature stresses.

[0024] 4. Achieve full coverage of the insulation layer, eliminating thermal bridging and leakage paths. The insulation board is completely sealed between the first and second steel mesh panels and is further encased in the outer and inner leaf plate concrete during subsequent pouring. This structure completely eliminates the point-like thermal bridges formed in traditional sandwich insulation walls due to connectors penetrating the insulation layer. Simultaneously, the mesh openings of the steel mesh panels are filled with concrete after pouring, forming a continuous concrete matrix without any through gaps penetrating the insulation layer. This fundamentally blocks the channels for moisture to penetrate to the inner leaf plate along the connectors, resulting in superior durability and thermal performance compared to traditional methods.

[0025] 5. It can flexibly integrate structural columns and edge sealing to achieve integrated structure and insulation. By reserving space between the inner molds of the insulation assembly or between the side molds and the inner molds and placing the reinforcing cage of the structural columns, the outer leaf plates, inner leaf plates, and structural columns can be cast in one go. The structural columns become "vertical channels" connecting the inner and outer leaf plates, allowing the casting spaces of the outer and inner leaf plates to be connected at the structural columns. This allows the concrete for the outer and inner leaf plates to be cast together at this point, simplifying the process. Similarly, the connecting design at the edge sealing also forms a complete concrete closed frame around the perimeter of the wall, improving the overall rigidity of the wall, its resistance to cracking during transportation, and the precision of the connection during installation.

[0026] 6. Modular internal formwork adapts to diverse wall types and sizes. The thermal insulation modular formwork adopts a standardized modular design of "steel mesh plate + insulation board". It can flexibly adapt to the needs of walls with different spans and opening positions by increasing or decreasing the number of modules or adjusting the arrangement of modules. When setting structural columns in or along the wall, it is only necessary to insert the structural column steel cage between adjacent modules. There is no need to customize special-shaped molds, which realizes the goal of industrialized production with fewer specifications and more combinations, and reduces the amortization cost of molds. Attached Figure Description

[0027] Figure 1 The diagram illustrates the structure of the thermal insulation combined inner mold in this invention.

[0028] Figure 2 The side view of the thermal insulation combination inner mold in this invention is shown.

[0029] Figure 3 This diagram illustrates the arrangement of the outer leaf plate steel mesh and the structural column steel cage in this invention.

[0030] Figure 4 This diagram illustrates the arrangement of the thermal insulation composite inner mold in this invention.

[0031] Figure 5 This diagram illustrates another structural design of the thermal insulation composite inner mold in this invention.

[0032] Figure 6 This diagram illustrates the construction and forming process of the groove in the outer blade of the present invention.

[0033] Figure 7 The diagram shows a comparison of the groove effect of the outer blade in this invention.

[0034] Figure 8 This diagram illustrates the anchoring of the inner formwork of the thermal insulation assembly to the concrete of the outer leaf plate in this invention.

[0035] Figure 9 This diagram illustrates the hierarchical structure of the outer leaf plate, the thermal insulation combined inner mold, and the inner leaf plate in this invention.

[0036] Figure 10The diagram illustrates the structure of the first steel mesh plate of the thermal insulation combined inner mold in this invention, which is implemented as a first flat mesh plate.

[0037] Figure 11 This diagram illustrates the on-site layout of the outer leaf plate steel mesh and the structural column steel cage in this invention.

[0038] Figure 12 This document presents a field construction drawing illustrating the rough surface of the outer blade plate during initial setting in this invention.

[0039] Figure 13 The diagram shows the on-site construction of the small plate of the thermal insulation combined inner mold in this invention.

[0040] Figure 14 The diagram shows the on-site construction of the large panel of the thermal insulation combined inner mold in this invention.

[0041] Figure 15 This diagram illustrates the on-site layout of the inner leaf plate reinforcement mesh in this invention.

[0042] The components include: 1. Insulation assembly inner mold; 11. First steel mesh plate; 11a. First flat mesh plate; 12. Insulation board; 13. Second steel mesh plate; 13a. Second flat mesh plate; 14. Nail gun; 15. Auxiliary foamed insulation material. 2. Outer leaf plate concrete; 21. Outer leaf plate steel mesh; 20. Groove; 20a. Rough surface; 3. Inner leaf plate concrete; 31. Inner leaf plate steel mesh; 41. Reinforcing cage for structural columns; 5. Casting molds; 6. Tools; 7. Edge sealing; 8. Hanging rings. Detailed Implementation

[0043] The preferred embodiments described below are merely examples, and other obvious variations will be apparent to those skilled in the art. The basic principles of the invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0044] An exemplary method for preparing a precast wall with integrated steel mesh sandwich insulation is provided: The preparation method of this embodiment includes the following steps. However, it should be noted that each step is not necessarily performed in the order described, and may be partially combined or split according to the specific construction process; each step may also be appropriately adjusted in order or performed in parallel according to the specific implementation. The following is combined with... Figures 1-15 To provide a detailed explanation.

[0045] As one implementation step of this embodiment, assembling the inner mold 1 of the thermal insulation assembly is a prefabricated component that forms a sandwich insulation layer. For example... Figure 1 , Figure 2 As shown, the inner mold 1 of the insulation assembly includes at least a first steel mesh plate 11, an insulation board 12, and a second steel mesh plate 13, with the insulation board 12 clamped and fixed between the first steel mesh plate 11 and the second steel mesh plate 13.

[0046] Specifically, the first steel mesh plate 11 is a flat mesh or a wavy mesh; the second steel mesh plate 13 is a flat mesh or a wavy mesh. That is, the first steel mesh plate 11 can be implemented as a first flat mesh plate 11a, and the second steel mesh plate 13 can be implemented as a second flat mesh plate 13a. In this embodiment, both the first steel mesh plate 11 and the second steel mesh plate 13 are wavy mesh. For the relevant dimensional parameters of the wavy mesh, refer to the national standard drawing 03J112 for hollow inner mold metal mesh cement inner partition walls. Both the first steel mesh plate 11 and the second steel mesh plate 13 are formed by stamping steel plates. Other materials that can form equivalent substitutes for steel are also acceptable.

[0047] Furthermore, the first steel mesh plate 11, the insulation board 12, and the second steel mesh plate 13 are assembled using nails 14 or other fittings to form the insulation combination inner mold 1.

[0048] Furthermore, such as Figure 1 As shown, the space on the side of the corrugated mesh (first steel mesh plate 11 and / or second steel mesh plate 13) facing the insulation board 12 is filled with auxiliary foamed insulation material 15. That is, the recessed part between the corrugated mesh and the insulation board 12 is filled with auxiliary foamed insulation material 15.

[0049] Furthermore, to facilitate positioning and prevent floating during the installation of the inner mold 1 of the insulation assembly, anti-floating tie-and-fixture components (not shown in the figure, not a necessary component in the specific implementation, and not a necessary part of this technical solution) are provided on the inner mold 1 of the insulation assembly. The tie-and-fixture components are at least tied to the outer leaf plate steel mesh 21. Preferably, the tie-and-fixture components are tie members, which include a main body and hooks at both ends of the main body; the main body passes through the inner mold 1 of the insulation assembly, and the hooks at both ends of the main body hook the outer leaf plate steel mesh 21 and the inner leaf plate steel mesh 31 as described later.

[0050] As one implementation step of this embodiment, such as Figure 3 and Figure 11 As shown, an outer leaf plate reinforcing mesh 21 is installed inside the casting mold 5. The outer leaf plate reinforcing mesh 21 is formed by the staggered arrangement of longitudinal and transverse reinforcing bars, and is laid out in accordance with relevant specifications to form a protective layer between it and the mold platform of the casting mold 5. The tie fasteners in the above steps are preferably tied to the staggered nodes of the outer leaf plate reinforcing mesh 21.

[0051] As one implementation step of this embodiment, such as Figure 6 or Figure 12As shown, outer leaf plate concrete 2 is poured into casting mold 5 and the outer leaf plate steel mesh 21 is covered. The outer leaf plate is formed after the outer leaf plate concrete 2 covers the outer leaf plate steel mesh 21.

[0052] As one implementation step of this embodiment, such as Figure 4 , Figure 5 As shown, or refer to Figure 8 and Figure 13 Install the insulation combination inner mold 1. Specifically, the insulation combination inner mold 1 is placed inside the casting mold 5 with the first steel mesh plate 11 facing the outer leaf plate steel mesh 21, and the first steel mesh plate 11 is embedded and anchored in the outer leaf plate concrete 2. In actual implementation, the first steel mesh is embedded and anchored in the outer leaf plate concrete 2 by means of tool 6 or by pressing it down manually.

[0053] There are multiple implementation methods for installing the thermal insulation combination inner mold 1 in this step. When it is a square regular wall, the thermal insulation combination inner mold 1 and the casting mold 5 are square in shape, which is suitable for the entire parapet wall or shear wall.

[0054] When used as a wall under a window, the inner mold 1 and the casting mold 5 of the insulation assembly are elongated. Similarly, L-shaped, U-shaped, and other wall shapes can also be formed.

[0055] Furthermore, such as Figure 14 and Figure 15 As shown, the steel mesh sandwich insulated precast wall also includes an edge sealing step. When setting the edge sealing 7, a forming space for the steel mesh sandwich insulated precast wall is created within the casting mold 5. Concrete is poured between the side mold and the inner mold 1 of the insulation assembly within the casting mold 5 to form the edge sealing 7. This method completely protects the inner mold 1 of the insulation assembly.

[0056] Please combine Figures 3-5 And see Figure 11 and Figure 12 When the precast steel mesh sandwich insulated wall needs to have a certain load-bearing capacity, this embodiment also includes the step of setting structural columns. Further, the forming space of the precast steel mesh sandwich insulated wall is formed in the casting mold 5, and the structural column reinforcement cage 41 is arranged at the wall edge or in the wall position in the casting mold 5.

[0057] Specifically, the structural column reinforcement cage 41 is placed between the outer leaf plate reinforcement mesh 21 and the inner leaf plate reinforcement mesh 31. Combined with concrete pouring, it forms an integral "hidden column" structure with the outer and inner leaf plates. It can be placed at the edge or center of the wall, depending on the wall's span. Because this structural column does not protrude from the wall surface, it is a "hidden column" structure.

[0058] In practice, when structural columns are installed within the walls of the casting mold 5, the number of insulation combination inner molds 1 is at least two, and the structural column reinforcement cage 41 is located between two adjacent insulation combination inner molds 1. The insulation combination inner molds 1 are assembled in a modular structure to form walls of different sizes.

[0059] Alternatively, when a structural column is set at the wall side position inside the casting mold 5, the structural column reinforcement cage 41 is located between the inner mold 1 of the insulation combination and the side mold of the casting mold 5.

[0060] As one implementation step of this embodiment, please refer to Figure 9 And see Figure 13 , Figure 14 and Figure 15 An inner leaf plate steel mesh 31 is installed on the inner formwork 1 of the insulation assembly. The same applies to the outer leaf plate steel mesh 21. The inner leaf plate steel mesh 31 is formed by the staggered arrangement of longitudinal and transverse steel bars, and is laid out according to relevant specifications to form a protective layer between it and the top surface of the wall during pouring. The tie-and-fixture components in the above steps are preferably installed at the staggered nodes of the inner leaf plate steel mesh 31.

[0061] As one implementation step of this embodiment, please refer to Figure 9 and Figure 10 The inner blade plate concrete 3 is poured into the casting mold 5, covering the inner blade plate reinforcing mesh 31, and the second steel mesh plate 13 is embedded and anchored in the inner blade plate concrete 3. Similarly, the inner blade plate concrete 3 is poured into the casting mold 5, covering the inner blade plate reinforcing mesh 31. The inner blade plate is formed after the inner blade plate concrete 3 covers the inner blade plate reinforcing mesh 31.

[0062] As an optimization of the above steps, the outer leaf plate concrete 2 and the inner leaf plate concrete 3 can be poured together according to the design of the edge sealing 7 or the structural column. For example, the outer leaf plate concrete 2 and the inner leaf plate concrete 3 can be poured together at the structural column reinforcement cage 41. Specifically, an outer leaf plate pouring space is formed between the inner mold 1 of the insulation combination and the mold platform of the pouring mold 5, and the outer leaf plate reinforcement mesh 21 is set in the outer leaf plate pouring space. An inner leaf plate pouring space is formed above the inner mold 1 of the insulation combination, and the inner leaf plate reinforcement mesh 31 is set in the inner leaf plate pouring space. The outer leaf plate pouring space and the inner leaf plate pouring space are connected through the structural column reinforcement cage 41.

[0063] Alternatively, the outer leaf plate concrete 2 and the inner leaf plate concrete 3 are poured together at the sealing edge 7; an outer leaf plate pouring space is formed between the inner mold of the insulation combination 1 and the mold platform of the pouring mold 5, and the outer leaf plate steel mesh 21 is set in the outer leaf plate pouring space. An inner leaf plate pouring space is formed above the inner mold of the insulation combination 1, and the inner leaf plate steel mesh 31 is set in the inner leaf plate pouring space; the outer leaf plate pouring space and the inner leaf plate pouring space are connected through the pouring space of the sealing edge 7.

[0064] As an optimization of the above steps, when the outer leaf plate concrete 2 and the inner leaf plate concrete 3 are poured separately, during the pouring of the outer leaf plate concrete 2 to form the outer leaf plate, when the outer leaf plate concrete 2 initially sets, a groove 20 adapted to the protrusion of the corrugated mesh is pressed out using a tool 6; the protrusion of the first steel mesh plate 11 is embedded in the groove 20 and anchored to the outer leaf plate concrete 2. In this way, after the outer leaf plate concrete 2 initially sets, the first steel mesh plate 11 is anchored to the outer leaf plate concrete 2, which also positions and fixes the inner mold 1 of the insulation assembly, eliminating the need for tie fasteners. Preferably, the slump of the outer leaf plate concrete 2 at initial setting is 20~50mm, preferably 40mm. The tool 6 can be a roller adapted to the shape of the groove 20.

[0065] Preferably, please refer to Figure 14 Alternatively, a lifting point (a conventional method) can be set up. This lifting point is a lifting ring 8, with its bottom fixed to the inner mold of the insulation combination 1 or passing through the inner mold of the insulation combination 1 and fixed to the outer leaf plate steel mesh 21. The top lifting ring 8 can extend above the inner leaf plate pouring space.

[0066] It should be noted that the above-mentioned implementation method for structural columns can also be applied to the implementation of structural beams. The only difference is the location; the construction principles and steps are the same.

[0067] Regarding the above implementation steps, the following are examples of specific implementation methods with different sequences: 1. Implementation method when there are no structural columns and edge sealing: First, the first steel mesh plate 11, the insulation board 12, and the second steel mesh plate 13 are assembled using nails 14 to form the insulation combination inner mold 1.

[0068] Secondly, an outer leaf plate steel mesh 21 is set inside the casting mold 5; the outer leaf plate concrete 2 is poured inside the casting mold 5 and covered with the outer leaf plate steel mesh 21 to form an outer leaf plate; when the outer leaf plate concrete 2 initially sets, a groove 20 that matches the protrusion of the corrugated mesh is pressed out by a tool 6; a rough surface 20a is formed on the surface of the initially set outer leaf plate by a tool 6.

[0069] Then, the protrusions of the first steel mesh plate 11 are embedded in the groove 20 and anchored to the outer leaf plate concrete 2; ensuring that the outer leaf plate concrete 2 can submerge the protrusions of the first steel mesh plate 11 (the trapezoidal protrusions formed by the crests and their sides). At this time, if tie fasteners are installed on the inner mold 1 of the insulation assembly, the hooks are hooked to the interlacing nodes of the outer leaf plate steel mesh 21.

[0070] Finally, the inner blade plate concrete 3 is poured into the casting mold 5 and covers the inner blade plate reinforcing mesh 31, and the second steel mesh plate 13 is embedded and anchored in the inner blade plate concrete 3. Similarly, the inner blade plate concrete 3 is poured into the casting mold 5 and covers the inner blade plate reinforcing mesh 31. After the inner blade plate concrete 3 covers the inner blade plate reinforcing mesh 31, the inner blade plate is formed.

[0071] 2. One implementation method with structural columns: First, the first steel mesh plate 11, the insulation board 12, and the second steel mesh plate 13 are assembled using nails 14 to form the insulation combination inner mold 1. The longitudinal bars and stirrups are then tied to form the structural column reinforcement cage 41.

[0072] Secondly, an outer leaf plate steel mesh 21 is set inside the casting mold 5; and the structural column steel cage 41 is arranged together with the structural column at the designed position.

[0073] Then, the outer leaf plate concrete 2 is poured into the casting mold 5 and the outer leaf plate steel mesh 21 is covered to form the outer leaf plate; when the outer leaf plate concrete 2 initially sets, a groove 20 that matches the protrusion of the corrugated mesh is pressed out by a tool 6; a rough surface 20a is formed on the surface of the initially set outer leaf plate by a tool 6. Alternatively, the outer leaf plate concrete 2 is poured directly and the outer leaf plate steel mesh 21 is covered to form the outer leaf plate, and before it sets, the protrusion of the first steel mesh plate 11 is pressed into the outer leaf plate concrete 2, so that the first steel mesh plate 11 is embedded in the groove 20 and anchored to the outer leaf plate concrete 2. At this time, if the insulation combination inner mold 1 is equipped with tie fasteners, the hooks are hooked onto the interlacing nodes of the outer leaf plate steel mesh 21.

[0074] Finally, the inner leaf plate concrete 3 is poured into the casting mold 5, covering the inner leaf plate reinforcing mesh 31 and the structural column reinforcing cage 41, and the second steel mesh plate 13 is embedded and anchored in the inner leaf plate concrete 3. Similarly, the inner leaf plate concrete 3 is poured into the casting mold 5, covering the inner leaf plate reinforcing mesh 31, and the inner leaf plate concrete 3 forms the inner leaf plate after covering the inner leaf plate reinforcing mesh 31. The structural column is formed after the inner leaf plate concrete 3 covers the structural column reinforcing cage 41.

[0075] 3. Another implementation method with structural columns: First, the first steel mesh plate 11, the insulation board 12, and the second steel mesh plate 13 are assembled using nails 14 to form the insulation combination inner mold 1. The longitudinal bars and stirrups are then tied to form the structural column reinforcement cage 41.

[0076] Secondly, an outer leaf plate steel mesh 21 is set inside the casting mold 5; and the structural column steel cage 41 is arranged together with the structural column at the designed position.

[0077] Then, tie fasteners are installed on the inner mold 1 of the insulation assembly, and hooks are used to hook the interlacing nodes of the outer leaf plate steel mesh 21; the inner leaf plate steel mesh 31 is installed on the inner mold 1 of the insulation assembly. Specifically, an outer leaf plate casting space is formed between the inner mold 1 of the insulation assembly and the mold platform of the casting mold 5, and the outer leaf plate steel mesh 21 is placed in the outer leaf plate casting space. An inner leaf plate casting space is formed above the inner mold 1 of the insulation assembly, and the inner leaf plate steel mesh 31 is placed in the inner leaf plate casting space; the outer leaf plate casting space and the inner leaf plate casting space are connected through the structural column steel cage 41.

[0078] Finally, concrete is poured into the casting mold 5 to fill the casting spaces of the outer leaf plate and the inner leaf plate, as well as the casting space of the structural column. This allows the first steel mesh plate 11 to be embedded and anchored in the outer leaf plate concrete 2, and the second steel mesh plate 13 to be embedded and anchored in the inner leaf plate concrete 3. The outer leaf plate concrete 2 and the inner leaf plate concrete 3 are poured together at the structural column reinforcement cage 41, forming the outer leaf plate, the inner leaf plate, and the structural column, respectively.

[0079] An example is provided of a prefabricated wall with integrated steel mesh sandwich insulation: Please combine Figures 1-15 The precast steel mesh sandwich insulation integrated wall in this embodiment is prepared by the above-described preparation method. Its structure varies depending on the implementation method.

[0080] For example: precast steel mesh sandwich insulation wall without structural columns and edge sealing: The precast steel mesh sandwich insulation wall includes an outer leaf plate, an inner leaf plate, and an insulation combination inner mold 1 sandwiched between the two. Specifically, the insulation combination inner mold 1 includes at least a first steel mesh plate 11, an insulation board 12, and a second steel mesh plate 13, with the insulation board 12 sandwiched and fixed between the first steel mesh plate 11 and the second steel mesh plate 13.

[0081] Specifically, the first steel mesh plate 11 is a flat mesh or a wavy mesh; the second steel mesh plate 13 is also a flat mesh or a wavy mesh. In this embodiment, both the first steel mesh plate 11 and the second steel mesh plate 13 are wavy mesh. For the relevant dimensional parameters of the wavy mesh, refer to the national standard drawing 03J112 for hollow inner mold metal mesh cement inner partition walls. Both the first steel mesh plate 11 and the second steel mesh plate 13 are formed by stamping steel plates. Other materials that can form equivalent substitutes are also acceptable.

[0082] Furthermore, the first steel mesh plate 11, the insulation plate 12, and the second steel mesh plate 13 are assembled by nail guns 14 to form the insulation combination inner mold 1.

[0083] Furthermore, the space on the side of the corrugated mesh (first steel mesh plate 11 and / or second steel mesh plate 13) facing the insulation board 12 is filled with auxiliary foamed insulation material 15. The recessed portion between the corrugated mesh and the insulation board 12 is also filled with auxiliary foamed insulation material 15.

[0084] An outer leaf plate steel mesh 21 is installed inside the outer leaf plate. The outer leaf plate steel mesh 21 is formed by the interlacing of longitudinal and transverse steel bars. When it is laid out, it forms a protective layer between itself and the formwork of the casting mold 5 in accordance with relevant specifications. Similarly, the inner leaf plate steel mesh 31 is formed by the interlacing of longitudinal and transverse steel bars. When it is laid out, it forms a protective layer between itself and the top surface of the wall during casting in accordance with relevant specifications.

[0085] The inner mold 1 of the thermal insulation assembly is submerged and anchored to the outer leaf plate and the inner leaf plate through the first steel mesh plate 11 and the second steel mesh plate 13.

[0086] For example: precast steel mesh sandwich insulation wall with structural columns: Unlike the steel mesh sandwich insulation integrated precast wall mentioned above, this structure incorporates structural columns.

[0087] A precast wall with integrated steel mesh sandwich insulation is formed within the casting mold 5. Reinforcing cages 41 for structural columns are arranged at the wall edges or within the wall within the casting mold 5. Specifically, the reinforcing cages 41 are positioned between the outer leaf plate reinforcing mesh 21 and the inner leaf plate reinforcing mesh 31. In conjunction with concrete pouring, they form an integral "hidden column" structure with the outer and inner leaf plates. They can be positioned at the wall edges or within the wall depending on the wall's span. Because this structural column does not protrude from the wall surface, it is a "hidden column" structure.

[0088] In practice, when structural columns are installed within the walls of the casting mold 5, the number of insulation combination inner molds 1 is at least two, and the structural column reinforcement cage 41 is located between two adjacent insulation combination inner molds 1. The insulation combination inner molds 1 are assembled in a modular structure to form walls of different sizes.

[0089] Alternatively, when a structural column is set at the wall side position inside the casting mold 5, the structural column reinforcement cage 41 is located between the inner mold 1 of the insulation combination and the side mold of the casting mold 5.

[0090] Specifically, an outer leaf plate casting space is formed between the inner mold 1 of the insulation combination and the mold platform of the casting mold 5. The outer leaf plate steel mesh 21 is set in the outer leaf plate casting space. An inner leaf plate casting space is formed above the inner mold 1 of the insulation combination. The inner leaf plate steel mesh 31 is set in the inner leaf plate casting space. The outer leaf plate casting space and the inner leaf plate casting space are connected through the structural column steel cage 41.

[0091] Concrete is poured into the casting mold 5 to cover the outer leaf plate reinforcement mesh 21 and the inner leaf plate reinforcement mesh 31. After the concrete covers the outer leaf plate reinforcement mesh 21, the outer leaf plate is formed. After the concrete covers the inner leaf plate reinforcement mesh 31, the inner leaf plate is formed. After the concrete covers the structural column reinforcement cage 41, the structural column is formed.

[0092] Furthermore, the present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A method for preparing a precast wall with integrated steel mesh sandwich insulation, characterized in that, Includes the following steps: Assemble the thermal insulation combination inner mold, which includes at least a first steel mesh plate, a thermal insulation plate, and a second steel mesh plate, and clamp and fix the thermal insulation plate between the first steel mesh plate and the second steel mesh plate; An outer leaf plate steel mesh is installed inside the casting mold; The outer leaf plate concrete is poured into the casting mold and the outer leaf plate steel mesh is covered. Install the thermal insulation combination inner mold, and place the thermal insulation combination inner mold in the casting mold with the first steel mesh plate facing the outer leaf plate steel mesh, and anchor the first steel mesh plate in the outer leaf plate concrete in an embedded manner; An inner leaf plate steel mesh is provided on the inner mold of the insulation assembly; The inner blade plate concrete is poured into the casting mold and the inner blade plate steel mesh is covered. The second steel mesh plate is then embedded and anchored in the inner blade plate concrete.

2. The preparation method according to claim 1, characterized in that, It also includes setting up structural columns; the forming space of the steel mesh mold sandwich insulation integrated precast wall is formed in the casting mold, and the structural column steel cage is arranged at the wall side or in the middle of the wall in the casting mold.

3. The preparation method according to claim 2, characterized in that, The structural column reinforcement cage is placed between the outer leaf plate reinforcement mesh and the inner leaf plate reinforcement mesh.

4. The preparation method according to claim 3, characterized in that, When a structural column is set in the wall position inside the casting mold, the number of the insulation combination inner mold is at least two, and the structural column reinforcement cage is located between two adjacent insulation combination inner molds; when a structural column is set in the wall side position inside the casting mold, the structural column reinforcement cage is located between the insulation combination inner mold and the side mold of the casting mold.

5. The preparation method according to claim 4, characterized in that, The outer leaf plate concrete and the inner leaf plate concrete are poured together at the structural column reinforcement cage; an outer leaf plate pouring space is formed between the inner mold of the insulation assembly and the mold platform of the pouring mold, and the outer leaf plate reinforcement mesh is placed in the outer leaf plate pouring space; an inner leaf plate pouring space is formed above the inner mold of the insulation assembly, and the inner leaf plate reinforcement mesh is placed in the inner leaf plate pouring space; the outer leaf plate pouring space and the inner leaf plate pouring space are connected through the structural column reinforcement cage.

6. The preparation method according to claim 1, characterized in that, It also includes setting an edge seal, forming a molding space for the steel mesh sandwich insulation integrated precast wall within the casting mold, and pouring concrete between the side mold and the inner mold of the insulation combination within the casting mold to form an edge seal.

7. The preparation method according to claim 6, characterized in that, The outer leaf plate concrete and the inner leaf plate concrete are poured together at the sealing edge; an outer leaf plate pouring space is formed between the inner mold of the insulation assembly and the mold platform of the pouring mold, and the outer leaf plate steel mesh is placed in the outer leaf plate pouring space; an inner leaf plate pouring space is formed above the inner mold of the insulation assembly, and the inner leaf plate steel mesh is placed in the inner leaf plate pouring space; the outer leaf plate pouring space and the inner leaf plate pouring space are connected through the pouring space of the sealing edge.

8. The preparation method according to claim 1, characterized in that, The first steel mesh is a flat mesh or a wavy mesh; the second steel mesh is a flat mesh or a wavy mesh.

9. The preparation method according to claim 8, characterized in that, When the first steel mesh is a corrugated mesh, when the outer leaf plate concrete initially sets, a groove matching the protrusion shape of the corrugated mesh is pressed out on the surface of the outer leaf plate concrete using a tool; the protrusion of the first steel mesh is embedded in the groove and anchored to the outer leaf plate concrete.

10. The preparation method according to claim 9, characterized in that, The slump of the outer leaf plate concrete at initial setting is 20~50mm.

11. The preparation method according to claim 8, characterized in that, The space on the side of the wave mesh facing the insulation board is filled with auxiliary foamed insulation material.

12. The preparation method according to claim 1, characterized in that, When installing the inner formwork of the insulation assembly, anti-floating tie-and-fixture components are installed on the inner formwork of the insulation assembly, and the tie-and-fixture components are at least tied to the steel mesh of the outer leaf plate.

13. The preparation method according to claim 12, characterized in that, The tie fastener is a tie member, which includes a main body and hooks at both ends of the main body; the main body passes through the inner mold of the thermal insulation assembly, and the hooks at both ends of the main body hook the outer leaf plate steel mesh and the inner leaf plate steel mesh respectively.

14. A precast wall with integrated steel mesh sandwich insulation, characterized in that, The steel mesh mold sandwich insulation integrated precast wall is prepared according to any one of claims 1 to 13.

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