Autoclaved aerated concrete bearing panel and fabricated building

Abstract

The invention provides an autoclaved aerated concrete bearing panel and a fabricated building, and belongs to the technical field of fabricated buildings. The autoclaved aerated concrete bearing panel comprises a mesh cage framework and a panel body, the mesh cage framework is located in the panel body, and the panel body is made of autoclaved aerated concrete materials. The mesh cage framework comprises a first reinforcing mesh, a second reinforcing mesh, a connecting sheet and a connecting rib; the first reinforcing mesh is close to the top bearing surface of the panel body, and the second reinforcing mesh is close to the bottom non-bearing surface of the panel body; the first reinforcing mesh comprises a first longitudinal rib material and a first transverse rib material which are transversely and longitudinally connected in a staggered manner, and the second reinforcing mesh comprises a second longitudinal rib material and a second transverse rib material which are transversely and longitudinally connected in a staggered manner; one end of the connecting sheet is connected with the first longitudinal rib material, and the other end of the connecting sheet is connected with the second longitudinal rib material corresponding to the position; one end of the connecting rib material is connected with the first longitudinal rib material, and the other end of the connecting rib material is connected with the second longitudinal rib material.

Description

Technical Field

[0001] The present application relates to the technical field of prefabricated buildings, and in particular to an autoclaved aerated concrete load-bearing panel and a prefabricated building. Background Art

[0002] Autoclaved aerated concrete load-bearing panels are mostly used in wall panels as prefabricated components. Their function is to serve as the enclosure panels of the main structure and they do not participate in the stress of the structural system.

[0003] However, with the further development of prefabricated buildings, cast-in-place composite slabs, reinforced truss floor decking, PH brace-free slabs, etc. cannot be widely used in smaller structural systems such as prefabricated farmhouses and homestays due to problems such as inconvenient construction and high cost. When autoclaved aerated concrete load-bearing panels are used as roof panels, floor panels and other load-bearing panels, there are problems such as low initial crack load, small failure load, and brittle failure of the panels. Summary of the invention

[0004] The present application provides an autoclaved aerated concrete load-bearing panel and an assembled building, which can solve the problems of low initial crack load, small failure load and brittle failure of the autoclaved aerated concrete load-bearing panel.

[0005] The technical solution is as follows:

[0006] In one aspect, an autoclaved aerated concrete load-bearing panel is provided, the autoclaved aerated concrete load-bearing panel comprising: a mesh cage frame and a panel body;

[0007] The mesh cage frame is located in the panel body, and the panel body is made of autoclaved aerated concrete material;

[0008] The mesh cage skeleton includes a first steel mesh, a second steel mesh, a connecting sheet and a connecting rib; the first steel mesh is close to the top load-bearing surface of the panel body, and the second steel mesh is close to the bottom non-load-bearing surface of the panel body;

[0009] The first steel mesh and the second steel mesh are arranged in parallel and spaced apart in the thickness direction of the panel body, the first steel mesh comprises a plurality of first longitudinal ribs and a plurality of first transverse ribs connected in a staggered manner horizontally and vertically, and the second steel mesh comprises a plurality of second longitudinal ribs and a plurality of second transverse ribs connected in a staggered manner horizontally and vertically;

[0010] One end of the connecting sheet is connected to at least one of the first longitudinal ribs, and the other end of the connecting sheet is connected to at least one of the second longitudinal ribs at a corresponding position;

[0011] One end of the connecting reinforcement is connected to the first longitudinal reinforcement, and the other end of the connecting reinforcement is connected to the second longitudinal reinforcement.

[0012] In some embodiments, at least one gas emission hole is provided on the connecting sheet, and the at least one gas emission hole is used for normal gas emission during the process of preparing the panel body by using autoclaved aerated concrete material.

[0013] In some embodiments, there are multiple connecting sheets, and the multiple connecting sheets are arranged at intervals along the extension direction of the first longitudinal ribs and the second longitudinal ribs, and the connecting sheets are located in the plane determined by the first longitudinal ribs and the second longitudinal ribs.

[0014] In some embodiments, there are multiple connecting ribs, and the multiple connecting ribs are obliquely arranged between the first longitudinal ribs and the second longitudinal ribs.

[0015] In some embodiments, one of the first longitudinal ribs is connected to the top ends of two of the connecting ribs, and the bottom ends of the two connecting ribs are respectively connected to two of the second longitudinal ribs on the left and right sides of the second longitudinal ribs located directly below the first longitudinal rib, and the two connecting ribs form a V-shape with an opening facing the second longitudinal ribs.

[0016] In some embodiments, at least one connecting sheet is provided between the first longitudinal rib connecting two connecting ribs and the second longitudinal rib located directly below the first longitudinal rib.

[0017] In some embodiments, the mesh cage frame further includes a connecting sleeve;

[0018] One of the first longitudinal ribs or the second longitudinal ribs has a first rib segment and a second rib segment, and the connecting sleeve is threadedly connected to the first rib segment and the second rib segment respectively, so that the first rib segment and the second rib segment are coaxially fixedly connected.

[0019] In some embodiments, the connecting sleeve includes a first interface, a second interface, and a third interface;

[0020] The first interface and the second interface are coaxially arranged, and the axis of the third interface intersects with the axis of the first interface or the second interface;

[0021] The first interface is threadedly connected to the first rib segment, the second interface is threadedly connected to the second rib segment, and the third interface is threadedly connected to the connecting rib material.

[0022] In some embodiments, a reinforcement coating is provided on the tension zone and the crack initial development zone on the surface of the panel body.

[0023] On the other hand, a prefabricated building is provided, wherein the prefabricated building adopts the autoclaved aerated concrete load-bearing panel described in the present application.

[0024] The beneficial effects of the technical solution provided by this application include at least:

[0025] The autoclaved aerated concrete load-bearing panel of the present application has a panel body made of autoclaved aerated concrete material and a mesh cage frame provided inside the panel body, the mesh cage frame has a first steel mesh and a second steel mesh, and a connecting sheet and a connecting rib are provided between the first steel mesh and the second steel mesh, the two ends of the connecting sheet are respectively connected to the longitudinal ribs in the first steel mesh and the second steel mesh, and the two ends of the connecting rib are also respectively connected to the longitudinal ribs in the first steel mesh and the second steel mesh, the use of the connecting sheet and the connecting rib can greatly improve the shear resistance of the load-bearing panel, improve the initial crack load and the failure load of the load-bearing panel, so that the autoclaved aerated concrete load-bearing panel can meet the use requirements of load-bearing structures such as roof panels and floor panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a structural schematic diagram of the autoclaved aerated concrete load-bearing panel provided in an embodiment of the present application;

[0028] Figure 2 is a longitudinal cross-sectional view of an autoclaved aerated concrete load-bearing panel provided in an embodiment of the present application;

[0029] Figure 3 is a transverse cross-sectional view of an autoclaved aerated concrete load-bearing panel provided in an embodiment of the present application;

[0030] Figure 4 is a schematic diagram of the connection state of the connecting sleeve provided in an embodiment of the present application;

[0031] Figure 5 is a schematic diagram of a connection state of a connecting sleeve provided by another embodiment of the present application;

[0032] Figure 6 It is a schematic diagram of the connection state of a connecting sleeve provided in another embodiment of the present application.

[0033] The reference numerals in the figures represent respectively:

[0034] 1. Net cage frame;

[0035] 11. first steel mesh; 111. first longitudinal reinforcement; 1111. first reinforcement segment; 1112. second reinforcement segment; 112. first transverse reinforcement;

[0036] 12. second steel mesh; 121. second longitudinal reinforcement; 122. second transverse reinforcement;

[0037] 13. Connecting sheets; 131. Ventilation holes;

[0038] 14. Connecting reinforcement;

[0039] 15, connecting sleeve; 151, first interface; 152, second interface; 153, third interface;

[0040] 2. Panel body;

[0041] 201, load-bearing surface; 202, non-load-bearing surface. DETAILED DESCRIPTION

[0042] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0043] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0044] Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meanings as commonly understood by those of ordinary skill in the art.

[0045] Autoclaved Aerated Concrete (AAC) is a lightweight, energy-saving building material that is widely used in residential, commercial buildings, industrial plants and other fields.

[0046] However, the autoclaved aerated concrete in the related art is usually used as a prefabricated non-load-bearing component and has brittle material properties, which determines that the autoclaved aerated concrete products are not suitable for structural load-bearing components.

[0047] In this regard, the present application provides an autoclaved aerated concrete load-bearing panel, which can utilize a pre-embedded mesh cage frame with a specific structure to improve the shear resistance of the load-bearing panel, increase the initial crack load and the failure load of the load-bearing panel, so that the autoclaved aerated concrete load-bearing panel can meet the use requirements of load-bearing structures such as roof panels and floor panels.

[0048] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0049] Combination Figure 1 As shown, this embodiment provides an autoclaved aerated concrete load-bearing panel, and the autoclaved aerated concrete load-bearing panel includes: a mesh cage frame 1 and a panel body 2.

[0050] The mesh cage frame 1 is located inside the panel body 2, and the panel body 2 is made of autoclaved aerated concrete material.

[0051] The mesh cage skeleton 1 includes a first steel mesh 11 , a second steel mesh 12 , a connecting sheet 13 and a connecting rib 14 ; the first steel mesh 11 is close to the top load-bearing surface 201 of the panel body 2 , and the second steel mesh 12 is close to the bottom non-load-bearing surface 202 of the panel body 2 .

[0052] The first steel mesh 11 and the second steel mesh 12 are arranged in parallel and spaced apart along the thickness direction of the panel body 2. The first steel mesh 11 includes a plurality of first longitudinal ribs 111 and a plurality of first transverse ribs 112 that are staggered in the horizontal and vertical directions, and the second steel mesh 12 includes a plurality of second longitudinal ribs 121 and a plurality of second transverse ribs 122 that are staggered in the horizontal and vertical directions.

[0053] One end of the connecting sheet 13 is connected to at least one first longitudinal rib 111 , and the other end of the connecting sheet 13 is connected to at least one second longitudinal rib 121 at a corresponding position.

[0054] One end of the connecting rib 14 is connected to the first longitudinal rib 111 , and the other end of the connecting rib 14 is connected to the second longitudinal rib 121 .

[0055] The autoclaved aerated concrete load-bearing panel of the present embodiment has a panel body 2 made of autoclaved aerated concrete material and a mesh cage frame 1 therein. The mesh cage frame 1 has a first steel mesh 11 and a second steel mesh 12, and a connecting sheet 13 and a connecting rib 14 are provided between the first steel mesh 11 and the second steel mesh 12. The two ends of the connecting sheet 13 are respectively connected to the longitudinal ribs in the first steel mesh 11 and the second steel mesh 12, and the two ends of the connecting rib 14 are also respectively connected to the longitudinal ribs in the first steel mesh 11 and the second steel mesh 12. The use of the connecting sheet 13 and the connecting rib 14 can greatly improve the shear resistance of the load-bearing panel, improve the initial crack load and the failure load of the load-bearing panel, so that the autoclaved aerated concrete load-bearing panel can meet the use requirements of load-bearing structures such as roof panels and floor panels.

[0056] In some embodiments, the connecting sheet 13 is made of steel material, and the thickness of the connecting sheet 13 is 0.6-1.0 mm. Exemplarily, the thickness of the connecting sheet 13 is 0.8 mm.

[0057] In some possible implementations, the autoclaved aerated concrete material includes the following components:

[0058] 16-25 parts of sand, 40-58 parts of limestone powder, 2-5 parts of mineral powder, 13-21 parts of white cement, 1-5 parts of sulphoaluminum cement, 1-5 parts of slag silicate cement, 3-6 parts of semi-hydrated gypsum, 1-4 parts of fly ash, 0.1-1.5 parts of titanium dioxide, 0.2-0.5 parts of microfibers, 0.1-0.6 parts of aerogel, 0.2-0.7 parts of redispersible latex powder, 0.3-0.7 parts of water retaining agent, 0.1-0.3 parts of water reducing agent, 0-0.02 parts of early strength agent, 0-0.03 parts of dispersant, and 0.01-0.02 parts of air entraining agent.

[0059] The sand is at least one of quartz sand, dolomite sand and natural river sand, and has a fineness of 40-120 meshes.

[0060] The limestone powder is commercially available ordinary limestone powder with a fineness of 40-120 mesh and is off-white powder.

[0061] The mineral powder is commercially available S95 grade mineral powder with a density of 2.93-2.95g / cm 3 , fineness is 325 mesh.

[0062] The white cement is at least one of the commercially available P.W32.5, P.W42.5, and P.W52.5 grade white silicate cements, with a whiteness of ≥89.

[0063] The sulphoaluminium cement is commercially available 42.5R grade, with an initial setting time of 5 minutes, a final setting time of 12 minutes, and a cement fineness of 35%.

[0064] The slag silicate cement is at least one of commercially available PS A 32.5 and PS A 42.5 grades.

[0065] Hemihydrate gypsum is a commercially available white building gypsum with an initial setting time of 3-5 minutes, a final setting time of 12 minutes, a flexural strength of 5 MPa, an expansion coefficient of 60, and a standard consistency of 70%.

[0066] The fly ash is at least one of Class II fly ash, Class I fly ash or ultrafine modified fly ash.

[0067] The titanium dioxide is one of rutile type and anatase type, wherein the TiO2 content is greater than or equal to 96%, and the tinting power is greater than or equal to 100.

[0068] The microfiber is at least one of polyvinyl alcohol fiber, basalt fiber, nylon fiber, cellulose fiber and glass fiber.

[0069] The redispersible latex powder is ethylene / vinyl acetate copolymer powder, vinyl acetate / ethylene / higher fatty acid vinyl ester copolymer powder, vinyl acetate / ethylene copolymer powder, and ethylene-vinyl acetate copolymer.

[0070] The water retaining agent is at least one of hydroxypropyl methyl cellulose ether, hydroxyethyl cellulose ether, hydroxypropyl starch ether and prefabricated starch ether.

[0071] The water reducer is at least one of an allyl polyglycol polycarboxylic acid water reducer, a polycarboxylic acid powder water reducer, and a melamine powder water reducer.

[0072] The early strength agent is at least one of lithium carbonate and calcium formate.

[0073] The dispersant is at least one of polyvinyl alcohol, bentonite, sodium polyacrylate and sodium hexametaphosphate.

[0074] The air entraining agent is one or more of sodium dodecyl sulfate, rosin resin, alkyl benzene sulfonate, and fatty alcohol sulfonate.

[0075] In some other possible implementations, the processing method of the autoclaved aerated concrete load-bearing panel of this embodiment includes:

[0076] Step 101: sand, limestone powder, mineral powder, white cement, sulphoaluminum cement, slag silicate cement, semi-hydrated gypsum, fly ash, titanium dioxide, microfiber, aerogel, redispersible latex, water retaining agent, water reducing agent, early strength agent, dispersant, and air entraining agent are uniformly mixed to obtain a mixed powder.

[0077] Step 102: Add water to the mixed powder obtained in step 101, use a mixer to perform mechanical stirring, and continue to mix evenly to obtain autoclaved aerated concrete slurry.

[0078] Step 103: pouring the autoclaved aerated concrete slurry into the mold.

[0079] Step 104: insert the mesh cage frame 1 of this embodiment into a mold containing autoclaved aerated concrete slurry.

[0080] Step 105: Place the mold in a temperature environment of 40-55°C and pre-cure for 2-3 hours.

[0081] Step 106: The pre-cured embryo is cut three times by milling, longitudinal cutting and transverse cutting, and then the embryo is turned over to remove the scraps on the surface and surrounding of the embryo.

[0082] Step 107: Send the embryo body to an autoclave for autoclaving at a constant temperature and pressure for 7 hours.

[0083] Combination Figure 2 As shown, in some embodiments, at least one gas emission hole 131 is provided on the connecting sheet 13, and the at least one gas emission hole 131 is used for normal gas emission during the process of preparing the panel body 2 by using the autoclaved aerated concrete material.

[0084] Through the above arrangement, the connecting sheet 13 can use its own venting holes 131 to ensure that the autoclaved aerated concrete material can be normally gassed when increasing the initial crack load and the destruction load of the bearing panel, ensure that a porous structure is formed inside the panel body, and ensure the lightweight, thermal insulation and sound insulation properties of the panel body.

[0085] In some possible implementations, the number of the air holes 131 is, for example, one, two, three, etc.

[0086] When the number of the air emitting holes 131 of each connecting sheet 13 is two or more, the air emitting holes 131 may be evenly distributed on the connecting sheet 13 or randomly distributed on the connecting sheet 13 .

[0087] Combination Figure 1 and Figure 2 As shown, in some embodiments, there are multiple connecting sheets 13, and the multiple connecting sheets 13 are evenly spaced along the extension direction of the first longitudinal ribs 111 and the second longitudinal ribs 121, and the connecting sheets 13 are located in the plane determined by the first longitudinal ribs 111 and the second longitudinal ribs 121.

[0088] Through the above arrangement, the connecting sheet 13 is arranged in the plane determined by the first longitudinal ribs 111 and the second longitudinal ribs 121, and a plurality of stable connecting structures can be formed between the parallel arranged first longitudinal ribs 111 and the second longitudinal ribs 121, so that the forces on the first longitudinal ribs 111 and the second longitudinal ribs 121 are more balanced, thereby greatly improving the shear resistance of the load-bearing panel, that is, the load-bearing capacity of the load-bearing panel can be improved.

[0089] Combination Figure 1 and Figure 2 As shown, in some embodiments, there are multiple connecting ribs 14 , and the multiple connecting ribs 14 are obliquely arranged between the first longitudinal rib 111 and the second longitudinal rib 121 .

[0090] Through the above arrangement, the connecting rib 14 is obliquely arranged between the first longitudinal rib 111 and the second longitudinal rib 121 , and the direction is consistent with the force in the first longitudinal rib 111 and the second longitudinal rib 121 , which can better exert the tensile or shear resistance.

[0091] Combination Figure 3 As shown, in some embodiments, one of the first longitudinal ribs 111 connects the top ends of two connecting ribs 14, and the bottom ends of the two connecting ribs 14 are respectively connected to two second longitudinal ribs 121 on the left and right sides of the second longitudinal rib 121 located directly below the first longitudinal rib 111, and the two connecting ribs 14 form a V-shape with an opening facing the second longitudinal rib 121.

[0092] Through the above arrangement, the two connecting reinforcements 14 can form a V-shaped support structure between a first longitudinal reinforcement 111 and the two second longitudinal reinforcements 121. The two connecting reinforcements 14 can be used to disperse the force of the first longitudinal reinforcement 111 and transfer it to the two second longitudinal reinforcements 121, which is beneficial to improve the force uniformity of the second steel mesh 12 and improve the bearing capacity of the load-bearing panel.

[0093] Combination Figure 3 As shown, in some embodiments, at least one connecting sheet 13 is provided between a first longitudinal rib 111 connecting two connecting ribs 14 and a second longitudinal rib 121 located directly below the first longitudinal rib 111 .

[0094] Through the above arrangement, the connecting sheet 13 is arranged under the first longitudinal rib 111 connecting the two connecting ribs 14, and is connected to the second longitudinal rib 121 directly under the first longitudinal rib 111, which can make up for the lack of connection of the corresponding second longitudinal rib 121, thereby comprehensively improving the compression and shear resistance of the load-bearing panel.

[0095] Combination Figure 4 As shown, in some embodiments, the cage frame 1 also includes a connecting sleeve 15.

[0096] One of the first longitudinal ribs 111 or the second longitudinal ribs 121 has a first rib segment 1111 and a second rib segment 1112, and the connecting sleeve 15 is threadedly connected to the first rib segment 1111 and the second rib segment 1112 respectively, so that the first rib segment 1111 and the second rib segment 1112 are coaxially fixedly connected.

[0097] Taking into account the autoclaved aerated concrete load-bearing panel, it is necessary to take into account the lightweight characteristics, and the mass and volume of the cage skeleton 1 are also limited. Therefore, the diameters of the first longitudinal reinforcement 111 and the second longitudinal reinforcement 121 are smaller than the diameters used in traditional concrete cages. In addition, the steel bars in traditional concrete cages are usually bundled with thin iron wires, which is difficult to operate in the cage skeleton 1 with limited volume and mass.

[0098] Therefore, in the autoclaved aerated concrete slab of the present embodiment, the mesh cage skeleton 1 uses a connecting sleeve 15 to connect the first rib segment 1111 and the second rib segment 1112 of the first longitudinal reinforcement 111 or the second longitudinal reinforcement 121, which can not only achieve the butt-jointing extension of the longitudinal reinforcements, but also reduce the difficulty of butt-joining the longitudinal reinforcements, thereby reducing the production difficulty of the mesh cage skeleton 1.

[0099] Combination Figure 4 As shown, in some embodiments, the connecting sleeve 15 includes a first interface 151 , a second interface 152 and a third interface 153 .

[0100] The first interface 151 and the second interface 152 are coaxially arranged, and the axis of the third interface 153 intersects with the axis of the first interface 151 or the second interface 152; the first interface 151 is threadedly connected to the first rib segment 1111, the second interface 152 is threadedly connected to the second rib segment 1112, and the third interface 153 is threadedly connected to the connecting rib 14.

[0101] Through the above arrangement, the connecting sleeve 15 can realize the connection and installation of the connecting reinforcement 14 while realizing the docking and extension of the first longitudinal reinforcement 111 or the second longitudinal reinforcement 121. Compared with welding and bundling connection, the connection reliability of the connecting sleeve 15 is higher.

[0102] In some possible implementations, the first interface 151, the second interface 152 and the third interface 153 are all provided with connecting threads, and the first rib segment 1111, the second rib segment 1112 and the connecting reinforcement 14 are all made of threaded steel bars. Thus, the connecting threads in the interface can be used to achieve a more reliable threaded connection with the first rib segment 1111, the second rib segment 1112 and the connecting reinforcement 14 respectively.

[0103] Combination Figure 4 As shown, in some embodiments, the first interface 151 and the second interface 152 are coaxially arranged, and the axis of the third interface 153 intersects perpendicularly with the axis of the first interface 151 or the second interface 152, so that the connecting sleeve 15 can realize the connection between the first longitudinal rib 111 or the second longitudinal rib 121 and the vertically arranged connecting rib 14.

[0104] Combination Figure 5As shown, in some embodiments, the first interface 151 and the second interface 152 are coaxially arranged, and the axis of the third interface 153 is obliquely intersected with the axis of the first interface 151 or the second interface 152, so that the connecting sleeve 15 can realize the connection between the first longitudinal rib 111 or the second longitudinal rib 121 and the obliquely arranged connecting rib 14.

[0105] Combination Figure 6 As shown, in some embodiments, the number of the third interfaces 153 is two, and the axes of the two third interfaces 153 are respectively obliquely intersected with the axes of the first interface 151 or the second interface 152, so that the connecting sleeve 15 can realize the connection between the first longitudinal rib 111 or the second longitudinal rib 121 and the two obliquely arranged connecting ribs 14.

[0106] In some embodiments, the tension zone and the initial crack development zone on the surface of the panel body 2 are provided with a reinforcement coating. Exemplarily, the reinforcement coating is an epoxy resin layer. The tension zone and the initial crack development zone of the panel body 2 can be determined by simulation analysis of the stress environment of the panel body 2.

[0107] In this embodiment, the epoxy resin forms a protective film in the tensile zone of the plate and the place where the initial cracks develop, and the permeability and porosity of the autoclaved aerated concrete structure are used to ensure that the new epoxy resin penetrates into the autoclaved aerated concrete board and combines with the aggregate of the plate body to form a new composite material autoclaved aerated concrete board. The tensile toughness and durability of the new epoxy resin are used to improve the brittle failure performance of the plate, while enhancing the corrosion resistance of the steel bars in the plate and extending the service life of the plate.

[0108] The experiment verified that the initial crack load of this batch of plates is 4400N / m 2 , the failure load is 9200N / m 2 The experiment started two weeks after the plates came out of the autoclave. The same batch of plates was tested within two days, and the data were processed and averaged.

[0109] On the other hand, a prefabricated building is provided, wherein the prefabricated building adopts the autoclaved aerated concrete load-bearing panel of the present application.

[0110] The prefabricated building of this embodiment adopts the autoclaved aerated concrete load-bearing panel of the present application, and has all the beneficial technical effects of all the embodiments herein.

[0111] It should be pointed out that in the description of this application, it should be explained that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0112] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0113] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0114] In the description of this specification, the reference terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application.

[0115] The above description is only an embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. An autoclaved aerated concrete load-bearing panel, characterized in that: The autoclaved aerated concrete load-bearing panel comprises: a mesh cage frame (1) and a panel body (2); The mesh cage frame (1) is located inside the panel body (2), and the panel body (2) is made of autoclaved aerated concrete material; The mesh cage skeleton (1) comprises a first steel mesh (11), a second steel mesh (12), a connecting sheet (13) and a connecting rib (14); the first steel mesh (11) is close to the top load-bearing surface (201) of the panel body (2), and the second steel mesh (12) is close to the bottom non-load-bearing surface (202) of the panel body (2); The first steel mesh (11) and the second steel mesh (12) are arranged in parallel and spaced apart along the thickness direction of the panel body (2); the first steel mesh (11) comprises a plurality of first longitudinal ribs (111) and a plurality of first transverse ribs (112) connected in a transverse and longitudinal staggered manner; and the second steel mesh (12) comprises a plurality of second longitudinal ribs (121) and a plurality of second transverse ribs (122) connected in a transverse and longitudinal staggered manner. One end of the connecting sheet (13) is connected to at least one of the first longitudinal ribs (111), and the other end of the connecting sheet (13) is connected to at least one of the second longitudinal ribs (121) at a corresponding position; One end of the connecting rib (14) is connected to the first longitudinal rib (111), and the other end of the connecting rib (14) is connected to the second longitudinal rib (121).

2. The autoclaved aerated concrete load-bearing panel according to claim 1, characterized in that: The connecting sheet (13) is provided with at least one gas emission hole (131), and the at least one gas emission hole (131) is used for normal gas emission during the process of preparing the panel body (2) using autoclaved aerated concrete material.

3. The autoclaved aerated concrete load-bearing panel according to claim 1 or 2, characterized in that: The number of the connecting sheets (13) is multiple, and the multiple connecting sheets (13) are arranged at intervals along the extension direction of the first longitudinal ribs (111) and the second longitudinal ribs (121), and the connecting sheets (13) are located in the plane determined by the first longitudinal ribs (111) and the second longitudinal ribs (121).

4. The autoclaved aerated concrete load-bearing panel according to any one of claims 1 to 3, characterized in that: The number of the connecting ribs (14) is plural, and the plural connecting ribs (14) are arranged obliquely between the first longitudinal ribs (111) and the second longitudinal ribs (121).

5. The autoclaved aerated concrete load-bearing panel according to claim 4, characterized in that: One of the first longitudinal ribs (111) is connected to the top ends of the two connecting ribs (14), and the bottom ends of the two connecting ribs (14) are respectively connected to two second longitudinal ribs (121) on the left and right sides of the second longitudinal rib (121) located directly below the first longitudinal rib (111), so that the two connecting ribs (14) form a V-shape with an opening facing the second longitudinal rib (121).

6. The autoclaved aerated concrete load-bearing panel according to claim 5, characterized in that: At least one connecting sheet (13) is provided between the first longitudinal rib (111) connecting the two connecting ribs (14) and the second longitudinal rib (121) located directly below the first longitudinal rib (111).

7. The autoclaved aerated concrete load-bearing panel according to any one of claims 1 to 6, characterized in that: The mesh cage frame (1) further comprises a connecting sleeve (15); One of the first longitudinal rib (111) or the second longitudinal rib (121) has a first rib segment (1111) and a second rib segment (1112), and the connecting sleeve (15) is threadedly connected to the first rib segment (1111) and the second rib segment (1112) respectively, so that the first rib segment (1111) and the second rib segment (1112) are coaxially fixedly connected.

8. The autoclaved aerated concrete load-bearing panel according to claim 7, characterized in that: The connecting sleeve (15) comprises a first interface (151), a second interface (152) and a third interface (153); The first interface (151) and the second interface (152) are coaxially arranged, and the axis of the third interface (153) intersects with the axis of the first interface (151) or the second interface (152); The first interface (151) is threadedly connected to the first rib segment (1111), the second interface (152) is threadedly connected to the second rib segment (1112), and the third interface (153) is threadedly connected to the connecting rib (14).

9. The autoclaved aerated concrete load-bearing panel according to any one of claims 1 to 8, characterized in that: The tension zone and the initial crack development zone on the surface of the panel body (2) are provided with a reinforcement coating.

10. An assembled building, characterized in that: The prefabricated building adopts the autoclaved aerated concrete load-bearing panel according to any one of claims 1 to 9.

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