Outer wall body structure

Abstract

The utility model relates to the field of buildings, and particularly discloses an outer wall body structure. The outer wall structure is installed on a structural frame of a building body and comprises a first structural layer, a second structural layer and a third structural layer which are sequentially arranged. And the second structural layer is connected to the structural frame to play a role in sealing and bearing, so that the air tightness and water tightness of the building main body are good. A supporting keel is arranged between the second structural layer and the first structural layer and installed on the structural frame, and the first structural layer is fixedly installed on the supporting keel. The first structural layer mainly plays a role in heat preservation, water prevention, air tightness and facade decoration. And the third structural layer is an anti-static aluminum honeycomb metal sandwich plate layer, is a lining wall body, is mainly applied to the interior of a building main body in clean production, and meets the dustproof and anti-static production requirements. According to the outer wall body structure, the multiple structural layers are stacked, all the structural layers can play different roles and supplement each other, and the comprehensive performance of the building main body outer wall used for clean production is enhanced.

Description

Technical Field

[0001] The present application relates to the field of building technology, and in particular to an exterior wall structure. Background Art

[0002] The prefabricated walls of existing high-precision electronic clean workshops are usually made of metal rock wool sandwich panels. Due to the existence of connecting plate seams and other problems at the joints, the air tightness and water tightness of the wall are poor, causing condensation on the side of the wall facing the room. In addition, during construction, due to the defects of the rock wool sandwich material filled inside the metal rock wool sandwich panel, flying catkins are easily generated, polluting the indoor environment. Utility Model Content

[0003] The embodiment of the utility model provides an exterior wall structure, which is easy to install and disassemble and has good sealing performance.

[0004] In order to achieve the above object, the utility model provides the following technical solutions:

[0005] The present application provides an exterior wall structure installed on the structural frame of the main building. The exterior wall structure includes a first structural layer, a second structural layer and a third structural layer arranged in sequence along a first direction, the second structural layer is connected to the structural frame, the second structural layer is used to seal the main building, the second structural layer is provided with a supporting keel on the side facing the first structural layer, the supporting keel is connected to the structural frame, the first structural layer is fixedly installed on the supporting keel, the first structural layer is used for heat preservation, waterproofing, airtightness and facade decoration; the third structural layer is an aluminum honeycomb metal sandwich panel layer, which is used for dust prevention and anti-static.

[0006] The exterior wall structure of the present application superimposes multiple structural layers, each of which can play a different role, complement and enhance each other, and strengthen the comprehensive performance of the exterior wall of the building main body used for clean production. The third structural layer located on the innermost side adopts an aluminum honeycomb metal sandwich panel layer. The third structural layer is used as an inner lining wall and is mainly used inside the building main body of clean production to meet the production needs of dust and anti-static. It has high surface flatness, anti-static and high cleanliness characteristics, and can still remain clean and bright after long-term use. Meet the requirements of clean workshops.

[0007] In one embodiment, the second structural layer is a grouting wallboard, including two cement fiber boards spaced apart along the first direction, and a polystyrene concrete layer filled between the two cement fiber boards.

[0008] In another embodiment, the second structural layer is an autoclaved aerated concrete slat layer.

[0009] In one embodiment, the first structural layer is a metal rock wool sandwich panel layer.

[0010] In another embodiment, the first structural layer includes autoclaved aerated concrete strip board layers and metal rock wool sandwich board layers stacked along the first direction.

[0011] In one embodiment, the exterior wall structure further includes a fourth structural layer, which is disposed between the second structural layer and the third structural layer, and is used for heat preservation.

[0012] In one embodiment, the fourth structural layer is a metal rock wool sandwich panel layer.

[0013] In one embodiment, the fourth structural layer has a thickness of 30 mm to 50 mm.

[0014] In one embodiment, the thickness of the first structural layer is 50 mm to 120 mm.

[0015] In one embodiment, the thickness of the second structural layer is 80 mm to 200 mm.

[0016] In one embodiment, the third structural layer has a thickness of 12 mm to 50 mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A partial schematic diagram of an exterior wall structure provided in an embodiment of the present application being assembled on a building body.

[0018] Reference numerals:

[0019] 1-first structural layer; 2-second structural layer; 3-third structural layer; M-first direction; 4-fourth structural layer; 5-supporting keel; 6-first beam; 7-second beam; 60-floor slab; 70-floor. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] First, the application scenario is introduced.

[0022] Cleanroom is a general term for cleanrooms and related controlled environments used for product production, as well as the power utilities that serve them. Depending on the production process, the cleanliness level requirements for cleanrooms are different. The cleanliness level is the level of cleanliness of suspended particles in the cleanroom, expressed by the number of particles per cubic meter of air. The cleanroom has requirements for thermal insulation, heat insulation, fire prevention, moisture resistance, air tightness, and vibration resistance. There are many structural gaps in the outer protective structure of the factory building, and active measures need to be taken to reduce the structural gaps and strengthen the air tightness of the gaps to minimize the leakage or pollution of clean air. The existing single wall structure cannot meet the above requirements well.

[0023] Figure 1 A partial schematic diagram of an external wall structure provided in an embodiment of the present application being assembled on a structural frame of a building main body. Figure 1 As shown, an embodiment of the present application provides an exterior wall structure installed on the structural frame of the building main body. The exterior wall structure includes a first structural layer 1, a second structural layer 2 and a third structural layer 3 arranged in sequence along a first direction M. The above-mentioned first direction M refers to the direction from the outside to the inside of the building main body. The above-mentioned first structural layer 1 mainly plays the role of heat preservation, waterproofing, and airtightness, and can also play the role of external decoration. The second structural layer 2 is connected to the structural frame, which is used to seal the interior of the building main body to reduce the dust, gas, water and other substances outside the building main body from entering the building main body, so that the airtightness and watertightness of the building main body are higher. The second structural layer 2 can also play the role of heat preservation and wall load-bearing. The second structural layer 2 is provided with a supporting keel 5 on the side facing the first structural layer 1, and the supporting keel 5 is installed on the structural frame of the building main body. The first structural layer 1 is fixedly installed on the supporting keel 5. The third structural layer 3 is an aluminum honeycomb metal sandwich panel layer, and the aluminum honeycomb metal sandwich panel has anti-static properties. The third structural layer 3 is arranged on the side of the second structural layer 2 facing the inner side of the building body, and is used as an inner lining wall. It is mainly used inside the building body of clean production to meet the production requirements of dust and anti-static, and can also serve as a decorative layer.

[0024] In the above embodiment, the antistatic aluminum honeycomb metal sandwich panel used in the third structural layer 3 has an antistatic coating on its surface, which can make the third structural layer 3 have antistatic properties. Specifically, the aluminum honeycomb metal sandwich panel is composed of a polypropylene film (PP film), a hot-rolled aluminum-magnesium-manganese plate, a polyurethane hot-melt film (PUR) and a high-strength honeycomb aluminum core. The processing of the honeycomb aluminum plate is to bond the polypropylene film, the rolled aluminum-magnesium-manganese plate and the high-strength honeycomb aluminum core by high-temperature hot melting of the PUR hot-melt film. Because of the high thermal conductivity of the honeycomb core and the aluminum-magnesium-manganese plate, the thermal expansion and contraction are synchronized, and the gas in the plate can flow freely, the structural deformation is small, and extremely high flatness can be guaranteed. The antistatic aluminum honeycomb metal sandwich panel has high surface flatness, antistatic and high cleanliness characteristics, can be used for dust prevention, and can remain clean and bright after long-term use. The exterior wall structure of the present application superimposes multiple structural layers, and each structural layer can play a different role, complement and enhance each other, and enhance the comprehensive performance of the exterior wall of the building main body used for clean production. This maintains a low pollution level environment inside the building.

[0025] The structural frame of the above-mentioned building main body includes beams, plates and columns. Among them, the plates located on the first floor of the building main body are floors, and the plates located above one floor are floor slabs, and the beams are connected to the edge positions of the plates. The structural frame of the building main body is a prior art, and those skilled in the art are aware of its specific structure. This embodiment is mainly to illustrate the specific connection position between the second structural layer 2 and the structural frame. The structural frame of the building main body usually includes multiple layers. This application takes the installation of the exterior wall structure on one layer of the building main body structural frame as an example. Figure 1 As shown, in the structural frame of each layer, the beam located at the top is called the first beam 6, and the first beam 6 is connected to the floor 60. The beam located at the bottom is called the second beam 7, and the second beam 7 is connected to the floor 70. The upper end of the second structural layer 2 is connected to the bottom surface of the first beam 6, and the lower end is connected to the top surface of the second beam 7. Figure 1 The middle floor 70 is specifically a raised floor.

[0026] In one embodiment, the upper end of the third structural layer 3 is connected to the bottom surface of the first beam 6, and the lower end is connected to the top surface of the second beam 7. The third structural layer 3 is located on the inner side of the second structural layer 2, which can better isolate the second structural layer 2 from the internal space of the building body and reduce the dust generated by the second structural layer 2 from entering the interior of the building body. The thickness of the third structural layer 3 can be 12mm to 50mm, preferably 50mm. Of course, during construction, the thickness of the third structural layer 3 can also be other sizes, which can be selected according to specific construction requirements, and this application does not make specific restrictions.

[0027] In one embodiment, the total thickness of the second structural layer 2 may be 80 mm to 200 mm. In other embodiments, the second structural layer 2 may also be of other sizes, which is not specifically limited in the present application.

[0028] In one embodiment, the second structural layer 2 is a grouting wallboard layer, including two cement fiber boards spaced apart along the first direction M, and a polystyrene concrete layer filled between the two cement fiber boards. Specifically, when making the second structural layer 2, polystyrene concrete slurry is poured between the two cement fiber boards so that the thickness of the polystyrene concrete layer is 60 mm to 200 mm. The thickness of the cement fiber board is 4 mm to 16 mm. It is worth noting that, in the above two cement fiber boards, each cement fiber board is spliced ​​by a plurality of cement fiber blocks. In other embodiments, the thickness of the polystyrene concrete layer and the cement fiber board is not limited to the above dimensions.

[0029] During the specific construction, the second structural layer 2 can be applied first to seal the main building. At the same time, the second structural layer 2 can also play the role of a closed environment, isolating the internal and external spaces of the main building, so as to facilitate the construction on both sides of the second structural layer 2 at the same time: the first structural layer 1 and the supporting keel 5 located on the outside and the third structural layer 3 located on the inside are constructed, and the construction on both sides does not affect each other.

[0030] In another embodiment, the second structural layer 2 can also be an autoclaved aerated concrete strip layer. The autoclaved aerated concrete strip layer is composed of a plurality of autoclaved aerated concrete strips. Autoclaved aerated concrete strips (AAC or ALC board) are a high-performance building material. It is mainly made of fly ash, cement, lime and other raw materials, and is made through multiple processes such as high-pressure steam curing. Autoclaved aerated concrete strips have the following characteristics: light weight and high strength. Its dry density is lower than that of ordinary concrete, only 0.5 to 0.8 g / cm3, but it has high strength and good bending and crack resistance. The thermal conductivity is low, usually 0.11 to 0.16 W / (m·Kelvin), and has good thermal insulation effect. Since the autoclaved aerated concrete strip is a porous structure, it has a good sound insulation effect. The autoclaved aerated concrete strip also has a high fire resistance limit and meets the first-level fire resistance standard. The autoclaved aerated concrete strip is an inorganic silicate material that is not easy to age and matches the service life of the building. Autoclaved aerated concrete slats have good frost resistance and can maintain stable performance even in extreme hot and cold environments. Autoclaved aerated concrete slats are an environmentally friendly and energy-saving choice in the construction industry and are suitable for a variety of building environments.

[0031] In one embodiment, the thickness of the first structural layer 1 is 50 mm to 120 mm, which can achieve a better use effect. Of course, during construction, the thickness of the first structural layer 1 can also be other sizes, which can be selected according to specific construction requirements, and this application does not make specific restrictions.

[0032] In one embodiment, the first structural layer 1 is a metal rock wool sandwich panel layer, which has good thermal insulation performance. The metal rock wool sandwich panel is a load-bearing structural panel composited on a dedicated automated production line, also known as a "sandwich" panel. The metal rock wool sandwich panel layer includes two metal sheets and a rock wool core material arranged between the two metal sheets. The metal sheet located on the outside can be an aluminum-zinc-coated steel sheet with a thickness of 0.8 mm, and the metal sheet located on the inside can be an aluminum-zinc-coated steel sheet with a thickness of 0.6 mm. The bulk density of the rock wool layer located in the middle is not less than 100 kg / m 3 , preferably 120kg / m 3 .

[0033] In another embodiment, the first structural layer 1 may also be formed by stacking two materials, specifically comprising a layer of autoclaved aerated concrete strips and a layer of metal rock wool sandwich panels stacked along the first direction M.

[0034] To improve the thermal insulation effect, in one embodiment, the outer wall structure may further include a fourth structural layer 4, which is disposed between the second structural layer 2 and the third structural layer 3. The fourth structural layer 4 is used for thermal insulation, and can further improve the thermal insulation effect of the outer wall structure.

[0035] When the fourth structural layer 4 is specifically selected, a metal rock wool sandwich panel layer can be selected as the fourth structural layer 4, and its thickness is 30mm to 50mm. Of course, the thickness of the fourth structural layer 4 can also be other sizes, which can be selected according to specific construction requirements, and this application does not make specific restrictions.

[0036] The exterior wall structure of the present application uses different types of materials as structural layers, and takes advantage of the performance of different materials to ensure good air tightness and water tightness of the building body, thereby maintaining a low pollution level in the indoor environment. In addition, the multi-level structure is easy to install and construct, improving construction efficiency. It is easy to repair and replace after a certain level is damaged.

[0037] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of this application and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An exterior wall structure installed on the structural frame of a building, characterized in that: It comprises a first structural layer, a second structural layer and a third structural layer arranged in sequence along a first direction, the second structural layer is connected to the structural frame, the second structural layer is used to make the building main body sealed, a supporting keel is arranged on the side of the second structural layer facing the first structural layer, the supporting keel is connected to the structural frame, the first structural layer is fixedly installed on the supporting keel, and the first structural layer is used for heat preservation, waterproofing, airtightness and facade decoration; The third structural layer is an aluminum honeycomb metal sandwich panel layer, which is used for dust prevention and anti-static.

2. The exterior wall structure according to claim 1, characterized in that: The second structural layer is a grouting wallboard, comprising two cement fiber boards spaced apart along the first direction, and a polystyrene concrete layer filled between the cement fiber boards.

3. The exterior wall structure according to claim 1, characterized in that: The second structural layer is an autoclaved aerated concrete slab layer.

4. The exterior wall structure according to claim 1, characterized in that: The first structural layer is a metal rock wool sandwich panel layer.

5. The exterior wall structure according to claim 1, characterized in that: The first structural layer includes an autoclaved aerated concrete strip board layer and a metal rock wool sandwich board layer stacked along the first direction.

6. The exterior wall structure according to any one of claims 1 to 5, characterized in that: It also includes a fourth structural layer, which is arranged between the second structural layer and the third structural layer, and is used for heat preservation.

7. The exterior wall structure according to claim 6, characterized in that: The fourth structural layer is a metal rock wool sandwich panel layer, and the thickness of the fourth structural layer is 30 mm to 50 mm.

8. The exterior wall structure according to claim 1, characterized in that: The thickness of the first structural layer is 50 mm to 120 mm.

9. The exterior wall structure according to claim 1, characterized in that: The thickness of the second structural layer is 80 mm to 200 mm.

10. The exterior wall structure according to claim 1, characterized in that: The thickness of the third structural layer is 12 mm to 50 mm.

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