Fabricated multifunctional load-bearing wall panel

Abstract

The utility model discloses an assembly type multifunctional load-bearing wallboard, including load-bearing layer, the side of load-bearing layer to the outside by near to far is equipped with fireproof layer, sound insulation layer, thermal -insulated layer and decorative layer in proper order. The utility model solves the problem of traditional load-bearing wallboard multiple focus single function, construction procedure is complicated, the problem of high cost, can be widely used in the field of building component construction.

Description

Technical Field

[0001] This utility model relates to the construction of building components, and in particular to a prefabricated multi-functional load-bearing wall panel. Background Technology

[0002] Wall panels are vertical structural components used in buildings to partition space, bear loads, or achieve specific functions. Their core functions include load-bearing: transferring the load from the superstructure to the foundation; and enclosure: acting as an enclosure structure to resist external environmental factors, such as insulation, soundproofing, and fireproofing. Traditional load-bearing wall panels often focus on a single function, such as load-bearing or soundproofing, failing to simultaneously address both load-bearing and functional requirements, leading to complex construction procedures and increased costs. With the accelerating pace of building industrialization, prefabricated buildings have become the mainstream trend in the industry due to their advantages such as short construction cycles and significant environmental benefits. Therefore, further research and application of the structural design of prefabricated multifunctional load-bearing wall panels are needed. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the above-mentioned background technology and provide a prefabricated multifunctional load-bearing wall panel, which solves the problems of traditional load-bearing wall panels focusing on single functions, complex construction procedures, and high costs.

[0004] This utility model provides a prefabricated multifunctional load-bearing wall panel, which includes a load-bearing layer. On the side of the load-bearing layer facing the outside, a fireproof layer, a sound insulation layer, a heat insulation layer and a decorative layer are arranged in sequence from near to far.

[0005] In the above technical solution, multiple steel sleeves with axes perpendicular to the surface of the wall panel are evenly distributed in the load-bearing layer. The inner wall of the steel sleeve is provided with internal threads, and high-strength bolts are provided in the steel sleeve that correspond to it one by one and are connected by threaded engagement.

[0006] In the above technical solution, each steel sleeve is provided with a foam or rubber plug, and each steel sleeve is provided with an expansion rubber strip that wraps around the outer wall of the steel sleeve. A flat washer or spring washer is provided between the bolt head of each high-strength bolt and the contacting layer. The structure composed of the high-strength bolt and the steel sleeve is arranged in a staggered manner.

[0007] In the above technical solution, the load-bearing layer is a lightweight aggregate concrete structure, and the lightweight aggregate concrete structure is provided with a steel mesh as a skeleton.

[0008] In the above technical solution, the fireproof layer is an intumescent fireproof coating layer or a high-density magnesium oxide fireproof board.

[0009] In the above technical solution, the sound insulation layer is composed of a rock wool layer near the fireproof layer and a foam aluminum layer near the thermal insulation layer.

[0010] In the above technical solution, the insulation layer is a vacuum insulation board.

[0011] In the above technical solution, the fireproof layer and the load-bearing layer, the sound insulation layer and the fireproof layer are fixedly connected by stainless steel bolts, and a structural adhesive layer is provided between the fireproof layer and the load-bearing layer, the sound insulation layer and the fireproof layer, and the heat insulation layer and the sound insulation layer.

[0012] In the above technical solution, the decorative layer is a prefabricated decorative panel or an on-site coating layer. The base layer of the on-site coating layer includes a fiberglass mesh connecting the insulation layer and a crack-resistant mortar layer connecting the fiberglass mesh. The surface layer of the on-site coating layer is real stone paint.

[0013] In the above technical solution, the load-bearing layer is provided with a steel fiber mesh or carbon fiber mesh to enhance crack resistance, pipelines are pre-embedded in the load-bearing layer, and serrated grooves or roughened surface layers are respectively provided on both sides of the side of the load-bearing layer facing the fireproof layer.

[0014] This utility model of prefabricated multifunctional load-bearing wall panel has the following beneficial effects: 1. It solves the problem of the single function of traditional wall panels. A single wall panel integrates four functions: load-bearing, fireproofing, sound insulation and heat insulation, reducing on-site construction steps and improving construction efficiency.

[0015] 2. The load-bearing part uses lightweight aggregate concrete, which has the characteristics of light weight, high strength, heat insulation, shock resistance and impermeability, solving the problems of difficult transportation and hoisting and high structural load caused by the excessive weight of traditional concrete wall panels.

[0016] 3. Pre-embedded pipe channels inside the wall allow water and electricity lines to pass through, avoiding the problem of later trenching and simplifying the construction process.

[0017] 4. The use of rock wool + aluminum foam composite sound insulation technology solves the problems of high consumption and high pollution of traditional wall materials.

[0018] 5. High-strength connectors are embedded in the load-bearing wall panels to support flexible connections in the horizontal (seismic joints) and vertical (inter-story) directions, which can adapt to the tolerance adjustment of prefabricated buildings and facilitate subsequent construction. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the prefabricated multi-functional load-bearing wall panel of this utility model; Figure 2 This is a schematic diagram of the basic structure of the prefabricated multi-functional load-bearing wall panel of this utility model; Figure 3 This is a flowchart illustrating the prefabrication process of the modular multi-functional load-bearing wall panel of this utility model in the factory prefabrication stage. Figure 4 This is a flowchart illustrating the on-site installation process of the prefabricated multi-functional load-bearing wall panel of this utility model. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, but these embodiments should not be construed as limiting the present invention.

[0021] This utility model provides a wall panel design that combines load-bearing capacity with functionality, in order to solve the problems of traditional load-bearing wall panels focusing on a single function, resulting in complex construction procedures and increased costs.

[0022] To achieve the above technology, the following will be combined with the appendix. Figures 1 to 4 This utility model will be described in detail as follows: The prefabricated multifunctional load-bearing wall panel of this utility model can be used as an exterior wall for buildings, and is applicable to high-rise residential buildings (rapid assembly, reducing wet work) and modular buildings (such as hospitals, schools, and hotels). The overall structure is shown in the figure (see figure). Figures 1 to 2 ): The main material of load-bearing layer 1 is lightweight aggregate concrete with a strength grade of LC30, incorporating steel fiber or carbon fiber mesh to enhance crack resistance. The internal skeleton uses a steel mesh (HRB400, Φ8-12mm).

[0023] The material of fireproof layer 2 is intumescent fireproof coating or high-density glass magnesium fireproof board (density ≥1.30g / cm³), with a fire resistance limit ≥2 hours and a combustion rating of A1 non-combustible.

[0024] The sound insulation layer 3 adopts a gradient density structure, with the material consisting of an inner layer of rock wool (density 100kg / m³) and an outer layer of aluminum foam. It uses the principle of sound wave reflection and absorption to reduce noise, with a sound insulation level Rw≥50dB.

[0025] The insulation layer 4 is made of vacuum insulation board with a thermal conductivity of ≤0.008W / m·K and an insulation performance of K≤0.80W / m²K.

[0026] Material selection for decorative layer 5: Prefabricated decorative panels are manufactured in a factory: ceramic thin plates, metal carved plates, wood grain cement fiber boards, or painted on-site.

[0027] See Figures 2 to 4 The manufacturing process of the prefabricated multifunctional load-bearing wall panel described in this utility model is as follows: Step 1: Install high-strength connectors embedded in the concrete for connecting the wall panels with stainless steel bolts (6). Before pouring the concrete for load-bearing layer 1, fix the internally threaded steel sleeves (material Q345B steel, not shown in the figure) to the formwork (not shown in the figure), ensuring that the axis of the steel sleeve is perpendicular to the wall panel surface. Fill the steel sleeves with foam or rubber plugs to prevent concrete from entering the steel sleeves during pouring. Securely connect the steel sleeves to the corresponding steel sleeves of adjacent wall panels using 8.8 or 10.9 grade high-strength bolts (not shown in the figure), along with flat washers or spring washers. Pre-embed PN150 type expansion rubber strips (expansion rate ≥250%) around the steel sleeves for waterproofing.

[0028] Step Two: Cast the load-bearing layer 1 in the factory. Use lightweight aggregate concrete with a strength grade of LC30. The internal framework uses a steel mesh (HRB400, Φ8-12mm), and the wall thickness is 150-200mm (adjustable according to load requirements). Pre-embedded pipe channels are installed inside the wall for water and electricity lines to pass through, avoiding later trenching. The surface treatment involves creating serrated grooves or a roughened finish on both sides to enhance adhesion to the functional layer.

[0029] Step 3: The functional layers are fabricated in the factory to provide fire resistance, sound insulation, and thermal insulation. The inner layer, immediately adjacent to the load-bearing layer 1, uses intumescent fire-retardant coating or high-density magnesium oxide fire-resistant board as the fire-resistant layer 2. The thickness of the intumescent fire-retardant coating is 5-8mm, and the thickness of the high-density magnesium oxide fire-resistant board (density ≥1.30g / cm³) is 8-10mm to meet the aforementioned fire resistance requirements. The middle layer uses rock wool + aluminum foam as the sound insulation layer 3. The rock wool density is 100kg / m³ with a thickness of 50mm, and the aluminum foam thickness is 10mm to meet the aforementioned sound insulation requirements. The outer layer uses a vacuum insulation panel (VIP) as the thermal insulation layer 4, with a thickness of 10-20mm to meet the aforementioned thermal insulation requirements. The fire-resistant layer 2 is fixed to the load-bearing layer 1, and the sound insulation layer 3 is fixed to the fire-resistant layer 2 using structural adhesive and stainless steel bolts 6, fixing them from the inside out in a staggered manner to prevent detachment. The thermal insulation layer 4 is fixed to the sound insulation layer 3 using structural adhesive. After the fireproof layer 2 is fixed or sprayed, the sound insulation layer 3 and the heat insulation layer 4 are made using a layered pressing process to ensure no hollow areas. The whole is wrapped with fiberglass mesh cloth 7 to enhance crack resistance.

[0030] Step 4: Create Decorative Layer 5. Decorative panels can be prefabricated in the factory using ceramic thin sheets (3-5mm thick, frost-resistant and fire-resistant), or metal carved panels (aluminum or stainless steel, custom patterns available), or wood-grain cement fiberboard (wood-like finish, fire-resistant B1 grade) as decorative layer 5. Alternatively, an on-site painting solution can be used for decorative layer 5 (suitable for low-cost projects). The base layer consists of alkali-resistant fiberglass mesh 7 (used in the previous step to wrap the sound insulation layer 3 and thermal insulation layer 4) + crack-resistant mortar, and the surface layer is stone-like paint (custom colors available).

[0031] Step 5: On-site installation. Hoist the wall panels to the site, align the pre-embedded connectors, fix with 6 stainless steel bolts / grout, and seal the joints.

[0032] Innovation 1. This prefabricated multi-functional load-bearing wall panel adopts a composite lamination technology of precast concrete + magnesium oxide fireproof board + inner layer rock wool, outer layer aluminum foam + vacuum insulation board, which solves the problems of low efficiency caused by the single function of traditional wall panels and the cross-operation of multiple trades on site. A single wall panel integrates four properties: load-bearing, fireproof, sound insulation and heat insulation, reducing on-site construction steps, improving construction efficiency and reducing construction costs.

[0033] 2. The load-bearing part of this prefabricated multi-functional load-bearing wall panel is made of lightweight aggregate concrete, which has the characteristics of light weight, high strength, heat insulation, shock resistance and impermeability. It solves the problems of difficult transportation and hoisting and high structural load caused by the excessive weight of traditional concrete wall panels. It not only has the characteristics of low weight, low thermal conductivity and high seismic performance, but also meets the needs of efficient construction of prefabricated buildings.

[0034] 3. The prefabricated multi-functional load-bearing wall panel has pre-embedded pipeline channels inside the wall during concrete pouring for water and electricity pipelines to pass through, avoiding the problem of later grooving, simplifying the construction steps and improving construction efficiency.

[0035] 4. This prefabricated multi-functional load-bearing wall panel uses green and energy-saving materials and adopts rock wool + aluminum foam composite sound insulation technology, which avoids the high consumption and high pollution problems of traditional wall materials, and achieves the effects of reducing construction costs, reducing construction waste, and improving sound insulation performance.

[0036] 5. The prefabricated multi-functional load-bearing wall panel is equipped with high-strength connectors that support flexible connections in both the horizontal (seismic joint) and vertical (inter-story) directions. This allows for tolerance adjustments in prefabricated buildings and facilitates subsequent construction.

[0037] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

[0038] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

Claims

1. A prefabricated multi-functional load-bearing wall panel, comprising a load-bearing layer (1), characterized in that: The load-bearing layer (1) is provided with a fireproof layer (2), a sound insulation layer (3), a heat insulation layer (4), and a decorative layer (5) on the outdoor side.

2. The prefabricated multi-functional load-bearing wall panel according to claim 1, characterized in that: The load-bearing layer (1) is provided with a plurality of steel sleeves whose axes are perpendicular to the surface of the wall panel. The inner wall of the steel sleeve is provided with internal threads, and the steel sleeve is provided with high-strength bolts that correspond to it one by one and are connected by threaded engagement.

3. The prefabricated multi-functional load-bearing wall panel according to claim 2, characterized in that: Each steel sleeve is equipped with a foam or rubber plug, and each steel sleeve has an expansion rubber strip wrapped around its outer wall. Each high-strength bolt has a flat washer or spring washer between its bolt head and the contacting layer. The structure composed of the high-strength bolts and the steel sleeves is arranged in a staggered manner.

4. The prefabricated multi-functional load-bearing wall panel according to claim 3, characterized in that: The load-bearing layer (1) is a lightweight aggregate concrete structure, and a steel mesh frame is provided inside the lightweight aggregate concrete structure as a skeleton.

5. The prefabricated multi-functional load-bearing wall panel according to claim 4, characterized in that: The fireproof layer (2) is an intumescent fireproof coating layer or a high-density glass magnesium fireproof board.

6. The prefabricated multi-functional load-bearing wall panel according to claim 5, characterized in that: The sound insulation layer (3) consists of a rock wool layer near the fireproof layer (2) and a foam aluminum layer near the thermal insulation layer (4).

7. The prefabricated multi-functional load-bearing wall panel according to claim 6, characterized in that: The insulation layer (4) is a vacuum insulation board.

8. The prefabricated multi-functional load-bearing wall panel according to claim 7, characterized in that: The fireproof layer (2) is fixedly connected to the load-bearing layer (1), the sound insulation layer (3) is fixedly connected to the fireproof layer (2) by stainless steel bolts (6), and a structural adhesive layer is provided between the fireproof layer (2) and the load-bearing layer (1), the sound insulation layer (3) and the fireproof layer (2), and the heat insulation layer (4) and the sound insulation layer (3).

9. The prefabricated multi-functional load-bearing wall panel according to claim 8, characterized in that: The decorative layer (5) is a prefabricated decorative panel or an on-site coating layer. The base layer of the on-site coating layer includes a glass fiber mesh (7) connecting the insulation layer (4) and a crack-resistant mortar layer connecting the glass fiber mesh (7). The surface layer of the on-site coating layer is real stone paint.

10. The prefabricated multi-functional load-bearing wall panel according to claim 9, characterized in that: The load-bearing layer (1) is provided with a steel fiber mesh or carbon fiber mesh to enhance crack resistance. Pipelines are pre-embedded in the load-bearing layer (1). The load-bearing layer (1) has serrated grooves or roughened surface layers on both sides of the side facing the fireproof layer (2).

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