Thermal and acoustic insulation floor for fabricated construction

Abstract

The utility model discloses a heat preservation and sound insulation floor for assembly type construction, including the upper concrete layer, heat preservation and sound insulation layer and lower concrete layer that set gradually from top to bottom, heat preservation and sound insulation layer is equipped with special composite material truss mesh for connecting upper and lower concrete layer and transmitting vertical pressure, and lower concrete layer is factory prefabricated reinforced concrete layer, is provided with floor bottom layer steel bar, and upper concrete layer is the on -the -spot pouring concrete layer, is provided with floor surface layer steel bar. The utility model adopts multilayer composite structure, and organically combines heat preservation and sound insulation layer and structure layer, can effectively solve the problem of insufficient heat preservation and sound insulation performance of the existing assembly type floor, improves the heat preservation and sound insulation performance between building floors under the premise of not increasing cost and process complexity degree significantly, provides more comfortable, energy -conserving living environment for the user.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically to a thermal insulation and soundproof floor slab for prefabricated construction. It is mainly used in the floor slab structure of various prefabricated buildings and aims to improve the thermal insulation and soundproof performance of the floor slab. Background Technology

[0002] With the rapid pace of urbanization, the number of buildings is increasing dramatically, and people's pursuit of building quality is also rising. As concepts such as "good houses" and energy-efficient buildings become more widely accepted, traditional building floor slabs are finding it difficult to achieve ideal sound insulation and thermal insulation performance.

[0003] Prefabricated buildings have been widely used due to their high efficiency and environmental friendliness. However, existing prefabricated floor slabs have certain shortcomings in terms of thermal insulation and soundproofing. Traditional prefabricated floor slabs often focus on structural strength and ease of installation, with insufficient consideration given to thermal insulation and soundproofing performance. In actual use, the interior is easily disturbed by external noise, and heat is easily lost through the floor slab, leading to increased indoor energy consumption and decreased living comfort. Therefore, developing a prefabricated building floor slab with good thermal insulation and soundproofing performance is of significant practical importance. Utility Model Content

[0004] The purpose of this invention is to provide a thermal insulation and soundproof floor slab for prefabricated construction, which can effectively solve the problem of insufficient thermal insulation and soundproof performance of existing prefabricated floor slabs. Without significantly increasing costs and process complexity, it can improve the thermal insulation and soundproof performance between building floors, providing users with a more comfortable and energy-saving living environment.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a thermal insulation and soundproof floor slab for prefabricated construction, comprising an upper concrete layer, a thermal insulation and soundproof layer and a lower concrete layer arranged sequentially from top to bottom. The thermal insulation and soundproof layer is provided with a truss mesh to connect the upper concrete layer and the lower concrete layer and transmit vertical pressure. The lower concrete layer is a factory-precast reinforced concrete layer with bottom reinforcement bars. The upper concrete layer is a field-cast concrete layer with surface reinforcement bars.

[0006] Furthermore, both the lower concrete layer and the thermal insulation and soundproofing layer are prefabricated in the factory.

[0007] Furthermore, the thermal insulation and sound insulation layer is provided with a microporous structure.

[0008] Furthermore, the truss mesh includes an upper chord, a lower chord, and web members. The upper and lower chords are made of steel bars of the designed specifications, and the web members are made of composite materials to transmit vertical pressure. The thermal conductivity is significantly lower than that of concrete and steel bars, thereby improving the overall thermal insulation performance of the floor slab.

[0009] Furthermore, the upper and lower concrete layers may be equipped with embedded parts as needed.

[0010] The upper concrete layer is a cast-in-place layer. The surface reinforcement of the floor slab is placed on-site and reliably tied to the truss mesh. After the embedded parts are installed, concrete is poured. The truss mesh, together with the prefabricated insulated and soundproof floor slab, forms a unified whole. This not only provides a solid surface for the composite floor slab, enabling it to withstand significant loads, but also provides a certain degree of wear resistance and impact resistance, ensuring the floor slab's service life.

[0011] The lower concrete layer is a precast reinforced concrete layer. After the bottom reinforcement of the floor slab is tied, the embedded parts and truss mesh are arranged on the factory production line, the concrete is poured. It provides structural strength for the thermal insulation and sound insulation floor slab in a series of manufacturing and construction stages such as production, transportation, installation and pouring, and ensures the overall rigidity and stability of the thermal insulation and sound insulation floor slab during this period.

[0012] The thermal insulation and sound insulation layer is completely encased within the reinforced concrete layer, enabling it to maintain its thermal insulation and sound insulation performance under different environmental conditions. It is not significantly affected by factors such as temperature and humidity, ensuring that the prefabricated thermal insulation and sound insulation floor slab can continuously provide stable and reliable thermal insulation and sound insulation effects throughout its entire service life.

[0013] The thermal insulation and soundproof floor slab is equipped with a special composite material truss mesh that connects the upper concrete layer, the thermal insulation and soundproof layer, and the lower concrete layer, organically combining them together. In addition to its mechanical properties of transferring the tensile and compressive forces between the upper and lower reinforced concrete slabs and enhancing the shear bearing capacity of the intermediate layer, the diagonal web members of the special composite material truss mesh have a significantly lower thermal conductivity than reinforced concrete, effectively improving both the overall performance and the thermal insulation performance of the floor slab.

[0014] This invention employs a multi-layer composite structure, organically combining the thermal insulation and soundproofing layers with the structural layer, allowing each layer to exert its maximum performance advantage. Compared to existing technologies, it has the following beneficial effects:

[0015] 1) By setting up a thermal insulation and sound insulation layer, the thermal insulation and sound insulation performance of the floor slab is significantly improved, and the heat exchange and noise transmission between floors are reduced;

[0016] 2) By embedding thermal insulation and sound insulation materials between concrete layers, the thermal insulation and sound insulation materials can avoid being directly subjected to repeated pressure, water absorption, drying, mold and other adverse effects, which can effectively extend the service life of the thermal insulation and sound insulation materials and avoid the fire hazards caused by the partial laying of thermal insulation and sound insulation materials.

[0017] 3) Due to the fine microporous structure of the thermal insulation and sound insulation layer, compared with the traditional method of laying it on the floor slab, this integrated thermal insulation and sound insulation floor slab can effectively reduce the growth of bacteria;

[0018] 4) The thermal insulation and sound insulation layer has a low density, which can increase the thickness of the floor slab and the thermal insulation performance without significantly increasing the structural load;

[0019] 5) The thermal insulation and sound insulation layer is installed in the factory, which is highly mechanized, reduces manual labor, and lowers production costs;

[0020] 6) Special composite material truss mesh is installed in the upper and lower concrete layers to ensure the structural strength of the floor slab and meet the load-bearing requirements of prefabricated buildings. Attached Figure Description

[0021] Figure 1 This is a schematic diagram showing the structural breakdown of this utility model;

[0022] Figure 2 This is a schematic diagram after the construction of this utility model is completed.

[0023] Attached diagram labels: 1. Lower concrete layer; 2. Thermal insulation and soundproofing layer; 3. Upper concrete layer; 4. Truss mesh; 11. Bottom layer reinforcement of floor slab; 31. Top layer reinforcement of floor slab. Detailed Implementation

[0024] The following is in conjunction with the appendix Figures 1 to 2 The present invention provides a more detailed description of the specific implementation method of a thermal insulation and soundproof floor slab for prefabricated construction.

[0025] A thermally insulated and soundproof floor slab for prefabricated construction includes an upper concrete layer 3, a thermally insulated and soundproof layer 2, and a lower concrete layer 1 arranged sequentially from top to bottom. A truss mesh 4 is provided on the lower concrete layer, and bottom floor steel bars 11 are provided in the lower concrete layer 1. Top floor steel bars 31 are provided in the upper concrete layer 3.

[0026] In this preferred embodiment, both the lower concrete layer and the thermal insulation and soundproofing layer are prefabricated in the factory.

[0027] In this preferred embodiment, the thermal insulation and sound insulation layer has a microporous structure, which can be cast or sprayed.

[0028] In this preferred embodiment, the truss mesh includes an upper chord, a lower chord, and web members. The upper and lower chords are steel bars of the designed specifications, and the web members are made of a special composite material (epoxy resin matrix + glass fiber) to transmit vertical pressure. The thermal conductivity is significantly lower than that of concrete and steel bars, thereby improving the overall thermal insulation performance of the floor slab.

[0029] In this preferred embodiment, the upper and lower concrete layers may be provided with embedded parts as needed.

[0030] The upper concrete layer 3 is a cast-in-place layer, formed by pouring concrete after the pre-tied bottom reinforcement of the floor slab is placed in the factory. A special composite material truss mesh 4 forms an integral whole with the prefabricated thermal and sound insulation floor slab. This not only provides a solid surface for the floor slab, enabling it to withstand large loads, but also provides a certain degree of wear resistance and impact resistance, ensuring the service life of the floor slab.

[0031] The lower concrete layer 1 is a precast reinforced concrete layer, which is formed by tying the top layer of the floor slab reinforcement on site and then pouring concrete. It provides structural strength for the thermal insulation and soundproof floor slab in a series of manufacturing and construction stages such as production, transportation, installation and pouring, and ensures the overall rigidity and stability of the thermal insulation and soundproof floor slab during this period.

[0032] The thermal insulation and soundproofing layer 2 is completely encased within the reinforced concrete layer, maintaining its sound insulation performance under various environmental conditions and unaffected by factors such as temperature and humidity. This ensures that the prefabricated thermal insulation and soundproofing floor slab provides stable and reliable sound insulation throughout its entire service life. The thermal insulation and soundproofing layer 2 is made of a new type of composite thermal insulation and soundproofing material, with its sound insulation performance prioritized while also considering thermal insulation during the process design. From a microscopic perspective, the non-uniform sound transmission space formed by the composite material acts like a series of small sound wave traps. When sound waves enter, they continuously undergo reflection, scattering, and interference, thereby consuming a large amount of sound energy and achieving effective absorption of sound waves. In terms of frequency response, the composite properties of the material exhibit comprehensive and efficient sound insulation capabilities. It can effectively control and reduce both high-frequency and low-frequency noise. Furthermore, this composite material also possesses good stability and durability.

[0033] A special composite material truss mesh 4 is installed inside the thermal insulation and soundproof floor slab, connecting the upper concrete layer 3, the thermal insulation and soundproof layer 2, and the lower concrete layer 1. This organically combines the upper concrete layer 3, the thermal insulation and soundproof layer 2, and the lower concrete layer 1. The diagonal web members of the special composite material truss can not only transmit the tensile and compressive forces of the upper and lower reinforced concrete slabs, but also enhance the shear bearing capacity of the intermediate layer. While effectively improving the overall performance of the floor slab, its low thermal conductivity also improves the overall thermal insulation performance of the floor slab.

[0034] In this preferred embodiment, the upper surfaces of the lower concrete layer 1 and the thermal insulation and sound insulation layer 2 are roughened to form an uneven texture. The uneven texture is created on the surfaces of the concrete and the thermal insulation and sound insulation layer 2 by mechanical or manual means, forming a rough surface structure to increase the contact area, thereby enhancing their adhesion to the subsequent thermal insulation and sound insulation layer 2 and the upper concrete layer 3.

[0035] In this preferred embodiment, the truss mesh 4 is made of a single special composite material truss. The single special composite material truss used is different from the triangular steel bar truss used in general precast composite floor slabs. The use of a single special composite material truss in this thermal insulation and sound insulation floor slab expands the convenience of laying high-performance thermal insulation materials.

[0036] In this preferred embodiment, embedded parts are provided in the upper concrete layer 3 and the lower concrete layer 1 as needed. During construction, embedded parts such as junction boxes and pipelines can be arranged as required by the design.

[0037] For detailed implementation procedures, please refer to [link / reference]. Figure 1 and Figure 2 A thermally insulated and soundproof floor slab for prefabricated construction includes the following steps:

[0038] Step 1, Constructing the lower concrete layer 1: Select concrete of appropriate strength grade according to design requirements, and arrange floor slab molds, place pre-tied bottom steel bars 11 and composite material truss mesh 4 in the prefabrication plant according to the dimensions in the drawings. Place embedded parts where required. After the relevant work is completed, pour the lower concrete layer, vibrate to compact, roughen the surface, and cure to the specified strength.

[0039] The second step is the fabrication of the thermal insulation and sound insulation layer 2: The fabrication of the thermal insulation and sound insulation layer is carried out after the concrete layer below has been cured to the standard strength. The material, thickness and compressive strength of the thermal insulation and sound insulation layer 2 should be selected according to the design requirements. High-density foamed polyurethane or special inorganic thermal insulation and sound insulation mortar can be selected. In this embodiment, special inorganic thermal insulation and sound insulation mortar is selected. The inorganic thermal insulation and sound insulation mortar is poured, vibrated and compacted, the surface is roughened, and cured to the specified strength to form a prefabricated prefabricated floor slab with thermal insulation and sound insulation.

[0040] The third step is to construct the upper concrete layer 3: After the prefabricated insulated and soundproof floor slabs are installed on site, the embedded parts are arranged according to the design requirements, the floor slab surface steel bars 31 are tied on site, the concrete is poured, vibrated to compact, and cured to the specified strength.

[0041] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A thermally insulated and soundproof floor slab for prefabricated construction, characterized in that: It includes an upper concrete layer, a thermal insulation and sound insulation layer, and a lower concrete layer arranged sequentially from top to bottom. The thermal insulation and sound insulation layer is equipped with a truss mesh to connect the upper concrete layer and the lower concrete layer and transmit vertical pressure. The lower concrete layer is a factory-precast reinforced concrete layer with bottom floor reinforcement. The upper concrete layer is a cast-in-place concrete layer with surface floor reinforcement.

2. The thermally insulated and soundproof floor slab for prefabricated construction according to claim 1, characterized in that: Both the lower concrete layer and the thermal insulation and soundproofing layer are prefabricated in the factory.

3. The thermally insulated and soundproof floor slab for prefabricated construction according to claim 1, characterized in that: The thermal insulation and sound insulation layer has a microporous structure.

4. The thermally insulated and soundproof floor slab for prefabricated construction according to claim 1, characterized in that: The truss mesh includes an upper chord, a lower chord, and web members. The upper and lower chords are made of steel bars of the designed specifications, while the web members are made of composite materials to transmit vertical pressure. The thermal conductivity is significantly lower than that of concrete and steel bars, thereby improving the overall thermal insulation performance of the floor slab.

5. The thermally insulated and soundproof floor slab for prefabricated construction according to claim 1, characterized in that: The upper and lower concrete layers may be equipped with embedded parts as needed.

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