Prefabricated self-insulation load-bearing wall structure and preparation method

Abstract

The application discloses an assembled self-thermal-insulation load-bearing wall structure and a preparation method thereof. The wall body is prepared by layer-by-layer installation of components and pouring of concrete layers, and required thermal insulation materials are integrated into the wall body. Each layer of concrete is internally grafted with a plurality of steel bar structures. The solidified concrete makes the wall body more firm, and the thermal insulation plates placed between two layers of concrete play a thermal insulation role, so that the wall body can maintain its original thermal insulation and load-bearing performance.

Description

Technical Field

[0001] This invention relates to the field of prefabricated wall technology, specifically to a prefabricated self-insulating load-bearing wall structure and its preparation method. Background Technology

[0002] Prefabricated walls utilize the principle of cast-in-place shear walls, employing galvanized light steel keel as the supporting framework and high-strength magnesium oxide flat panels as non-removable panels. The final wall structure is formed by pouring environmentally friendly, flame-retardant, lightweight mortar inside the magnesium oxide flat panels. Prefabricated walls adhere to the national policy of developing green building materials and moving away from traditional brick and tile construction, aiming to save energy, reduce dust, lower costs, accelerate construction, reduce labor, and improve wall quality. The entire wall uses high-strength magnesium oxide flat panels as the panel and light steel keel as the framework, with the wall core cast using lightweight, non-toxic, and flame-retardant materials. This ensures wall flatness while improving the overall integrity, sound insulation, and seismic resistance of the wall, fully aligning with the development trend of wall materials, and particularly highlighting the characteristics of lightweight, energy-saving, and environmentally friendly construction.

[0003] In the prior art, such as Chinese patent application number CN109881810A, a prefabricated wall structure is disclosed, which includes a concrete wall and an insulation component. The outer side of the concrete wall has several fasteners, and the insulation component has several fastening slots. Each fastening slot corresponds to one of the fasteners, and the fasteners are connected to the fastening slots. By connecting the fasteners to the fastening slots, the connection strength between the concrete wall and the insulation component is effectively improved. At the same time, construction efficiency is improved, and the firmness and safety of the prefabricated wall structure are greatly enhanced.

[0004] However, the aforementioned patents have the following shortcomings:

[0005] To ensure the thermal insulation of the interior space, existing prefabricated walls usually require insulation materials. The wall structure involved in the aforementioned patent uses pre-set snap-fit ​​grooves on the wall surface and snap-fit ​​components on the required insulation components. Through splicing and concrete pouring, the two are fixed together, thereby increasing the connection strength between the wall and the insulation components. However, some shortcomings still exist. For example, the insulation components are still attached to the wall surface. Although concrete is used for pouring, the insulation components themselves have a large area, resulting in less concrete content between the two. At the same time, no supporting components are added between the two, causing the concrete between the two to gradually weather and fall off as the wall ages. Without the reinforcement of the concrete layer, the insulation components will eventually detach from the wall surface.

[0006] Therefore, we propose a prefabricated self-insulating load-bearing wall structure and its preparation method to solve the problems mentioned above. Summary of the Invention

[0007] The purpose of this invention is to provide a prefabricated self-insulating load-bearing wall structure and its preparation method. This wall structure is prepared by pouring the wall and insulation material layer by layer. The steel mesh provides part of the frame support for the wall. After the first layer of concrete is poured, the grooved insulation board is placed inside the galvanized corrugated mesh. At the same time, multiple steel cages are added horizontally on the surface of the concrete layer in sequence. Subsequent pouring of concrete layers can increase the strength of the wall structure.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a prefabricated self-insulating load-bearing wall structure, comprising multiple galvanized corrugated meshes, multiple sets of connecting steel plates, biomass concrete, grooved insulation boards, galvanized flat steel meshes, non-biomass concrete, and multiple tie members.

[0009] Preferably, the top and bottom of each pair of the plurality of galvanized corrugated meshes are spliced ​​together to form a plurality of hexagonal hollow mesh structures. The plurality of hexagonal hollow mesh structures formed by combining two galvanized corrugated meshes can be used for dehumidification and weight reduction, and can also serve as fresh air channels.

[0010] Preferably, a set of reinforcing bars is welded between the opposite sides of each pair of connecting steel plates in the plurality of sets of connecting steel plates, and multiple reinforcing cages are placed between the outer walls of each set of reinforcing mesh. Each of the plurality of connecting steel plates has a bolt sleeve pre-set inside. The bolt sleeve can serve as a connection structure between each pair of adjacent walls. By using a specified threaded rod, the walls can be fully combined.

[0011] Preferably, the biomass concrete is placed on top of the galvanized flat steel mesh, which further increases the connection strength between the groove insulation board and the bottom concrete layer of the wall panel.

[0012] Preferably, the non-biomass concrete is poured on the surface of a galvanized flat steel mesh, and the non-biomass concrete is made of rice husks and concrete. Multiple tie members are equidistantly distributed inside the multi-layer structure, and the tie members are used to tighten the steel reinforcement structure inside the wall.

[0013] A method for fabricating a prefabricated self-insulating load-bearing wall structure includes the following fabrication steps:

[0014] Step 1: Select the specified mold and before placing multiple components, lay the first layer of pre-welded steel mesh at the bottom of the mold and set up multiple tie rods;

[0015] Step 2: Next, place a steel cage with an irregular quantity of bolt sleeves and connecting steel plates, then pour the first layer of non-biomass concrete and mechanically vibrate it to compact it.

[0016] Step 3: Lay an irregular amount of galvanized corrugated mesh horizontally on the first layer of non-biomass concrete, then lay the second layer of welded steel mesh, and then pour the second layer of non-biomass concrete.

[0017] Step 4: After the second layer of non-biomass concrete has been mechanically vibrated and compacted, press the required grooved insulation board horizontally onto the upper surface of the second layer of non-biomass concrete, and then pour biomass concrete until it completely covers the surface of the grooved insulation board.

[0018] Step 5: Lay galvanized flat steel mesh horizontally on the surface of biomass concrete. After laying, tie and fix the third layer of steel mesh and galvanized flat steel mesh together.

[0019] Step 6: After completing the above steps, tighten the tie pieces that run through the wall, then pour the second layer of biomass concrete until all tie pieces are completely buried, and then mechanically vibrate to compact it. Finally, use a leveling device to compact and flatten the wall surface after vibration.

[0020] Step 7: After completing the above procedures for the three parts of the wall, the assembly of this prefabricated wall system is complete.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] This invention describes a novel heat-insulating and load-bearing wall structure manufactured through a layer-by-layer assembly and pouring process. The wall structure utilizes a steel mesh and steel cage as its main framework. After laying the steel mesh and installing the tie rods, the steel cage is placed in and the first layer of non-biomass concrete is poured. Next, a hexagonal hollow mesh structure, i.e., galvanized corrugated mesh, is placed between the first and second layers of steel mesh. The second layer of non-biomass concrete is then poured. A grooved insulation board is placed on top of the second layer of non-biomass concrete, followed by the pouring of biomass concrete, and finally, the steel reinforcement is installed. After the wire mesh and galvanized flat steel mesh are fixed, they are placed on top of biomass concrete. Then, the pre-erected tie rods are fastened to secure the three-layer wall structure. Finally, another layer of biomass concrete is placed on top to prevent the wall from separating or falling off. This reduces the overall weight of the wall, saves assembly time, and greatly increases the convenience of actual house assembly. Meanwhile, the insulation material is placed between the two layers of concrete, allowing the wall to maintain its original insulation and load-bearing performance after use, effectively solving the shortcomings of the aforementioned technologies. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the wall structure in the prefabricated self-insulating load-bearing wall structure and its preparation method according to the present invention.

[0024] Figure 2 This is an enlarged perspective view of the galvanized corrugated mesh structure in the prefabricated self-insulating load-bearing wall structure and its preparation method of the present invention.

[0025] Figure 3 This is a vertical sectional view of the wall in this invention.

[0026] Legend: 1. Galvanized corrugated wire mesh; 2. Hexagonal hollow mesh structure; 3. Connecting steel plate; 4. Reinforcing mesh; 5. Reinforcing cage; 6. Bolt sleeve; 7. Biomass concrete; 8. Grooved insulation board; 9. Galvanized flat steel mesh; 10. Non-biomass concrete; 11. Tie member. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1: Please refer to Figure 1 - Figure 3 As shown, the present invention provides a technical solution: a prefabricated self-insulating load-bearing wall structure, including multiple galvanized corrugated mesh 1, multiple sets of connecting steel plates 3, biomass concrete 7, grooved insulation board 8, galvanized flat steel mesh 9, non-biomass concrete 10 and multiple tie members 11.

[0029] according to Figure 1 - Figure 2 As shown, the top and bottom of each pair of galvanized corrugated mesh 1 are spliced ​​together to form multiple hexagonal hollow mesh structures 2. The multiple hexagonal hollow mesh structures 2 formed by combining two galvanized corrugated mesh 1 can be used for dehumidification and weight reduction, and can also serve as a fresh air channel.

[0030] according to Figure 2 As shown, a set of steel mesh 4 is welded between the opposite sides of each pair of connecting steel plates 3 in the multiple sets of connecting steel plates 3. Multiple steel cages 5 are placed between the outer walls of each set of steel mesh 4. Each of the multiple sets of connecting steel plates 3 has a bolt sleeve 6 pre-set inside. By setting the bolt sleeve 6, it can be used as a connection structure between each pair of adjacent walls. By using a specified threaded rod, the walls can be fully combined.

[0031] according to Figure 1 - Figure 2 As shown, biomass concrete 7 is placed on top of galvanized flat steel mesh 9. By placing galvanized flat steel mesh 9, the connection strength between the groove insulation board 8 and the bottom concrete layer of the wall panel is further increased.

[0032] according to Figure 1 - Figure 2As shown, non-biomass concrete 10 is poured on the surface of galvanized flat steel mesh 9, and non-biomass concrete 10 is made of rice husk and concrete. Multiple tie members 11 are evenly distributed inside the multi-layer structure. By setting tie members 11, the steel reinforcement structure inside the wall is tightened.

[0033] Example 2: The present invention also provides a method for manufacturing a prefabricated self-insulating load-bearing wall structure, comprising the following manufacturing steps:

[0034] Step 1: Select the specified mold and before placing multiple components, lay the first layer of pre-welded steel mesh at the bottom of the mold and set up multiple tie rods;

[0035] Step 2: Next, place a steel cage with an irregular quantity of bolt sleeves and connecting steel plates, then pour the first layer of non-biomass concrete and mechanically vibrate it to compact it.

[0036] Step 3: Lay an irregular amount of galvanized corrugated mesh horizontally on the first layer of non-biomass concrete, then lay the second layer of welded steel mesh, and then pour the second layer of non-biomass concrete.

[0037] Step 4: After the second layer of non-biomass concrete has been mechanically vibrated and compacted, press the required grooved insulation board horizontally onto the upper surface of the second layer of non-biomass concrete, and then pour biomass concrete until it completely covers the surface of the grooved insulation board.

[0038] Step 5: Lay galvanized flat steel mesh horizontally on the surface of biomass concrete. After laying, tie and fix the third layer of steel mesh and galvanized flat steel mesh together.

[0039] Step 6: After completing the above steps, tighten the tie pieces that run through the wall, then pour the second layer of biomass concrete until all tie pieces are completely buried, and then mechanically vibrate to compact it. Finally, use a leveling device to compact and flatten the wall surface after vibration.

[0040] Step 7: After completing the above procedures for the three parts of the wall, the assembly of this prefabricated wall system is complete.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A prefabricated self-insulating load-bearing wall structure, characterized in that: It includes multiple galvanized corrugated mesh (1), multiple sets of connecting steel plates (3), biomass concrete (7), grooved insulation board (8), galvanized flat steel mesh (9), non-biomass concrete (10), and multiple tie members (11). The top and bottom of each pair of the multiple galvanized corrugated meshes (1) are spliced ​​together to form multiple hexagonal hollow mesh structures (2). A set of reinforcing bars is welded between the opposite sides of each pair of connecting steel plates (3). The outer side of each set of reinforcing mesh (4) Multiple steel cages (5) are placed between the surface walls. Each of the multiple sets of connecting steel plates (3) has a bolt sleeve (6) pre-set inside. The biomass concrete (7) is poured on the inside of the galvanized flat steel mesh (9) and on the outside of the galvanized flat steel mesh (9). The biomass concrete (7) is made of biomass concrete. Multiple tie members (11) are erected inside the multi-layer structure. The size of the load-bearing wall and the insulation layer with biomass concrete in the wall can be designed and adjusted.

2. A method for manufacturing a prefabricated self-insulating load-bearing wall structure, characterized in that: The prefabricated self-insulating load-bearing wall structure according to any one of claims 1 includes the following assembly steps: S1: Select the specified mold, before placing multiple components, first lay the first layer of steel mesh (4) at the bottom of the mold and set up multiple tie pieces (11), then place an unspecified amount of steel cage (5) with bolt sleeves (6) and connecting steel plates (3), then pour the first layer of non-biomass concrete (10) and mechanically vibrate to compact it; S2: Lay an irregular amount of galvanized corrugated mesh (1) horizontally on the first layer of non-biomass concrete (10), then lay the second layer of steel mesh (4), and pour the second layer of non-biomass concrete (10). S3: After the second layer of non-biomass concrete (10) is mechanically vibrated and compacted, the required groove insulation board (8) is pressed horizontally onto the upper surface of the second layer of non-biomass concrete (10), and then biomass concrete (7) is poured to completely cover the surface of the groove insulation board (8). S4: Lay galvanized flat steel mesh (9) horizontally on the surface of biomass concrete (7), and after laying, tie and fix the steel mesh (4) and galvanized flat steel mesh (9) in the third layer; S5: After completing the above steps, fasten the tie pieces that run through the wall, and then pour the second layer of biomass concrete (7) until all tie pieces (11) are completely buried. Then mechanically vibrate to compact the concrete to ensure that the three parts of the wall are fixed and do not separate.

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