GRC board and outer wall heat preservation and decoration integrated board composite outer wall structure and construction technology

Abstract

The invention belongs to the technical field of constructional engineering applied to outer wall bodies, and discloses a GRC board and outer wall heat preservation and decoration integrated board composite outer wall structure and a construction technology. The composite outer wall structure is installed on the outer side of a building outer wall body and comprises first galvanized angle steel, second galvanized angle steel and a third galvanized angle steel, and the first galvanized angle steel is connected to the outer side of the building outer wall body; one end of the galvanized round steel is connected with the first galvanized angle steel; the GRC plate is connected with one end, far away from the first galvanized angle steel, of the galvanized round steel; the multiple GRC plates are arranged, and the multiple GRC plates intersect and are connected with one another; the outer wall heat preservation and decoration integrated plate is connected to the building outer wall body and the side, away from the building outer wall body, of the GRC plate. According to the invention, the GRC plate is arranged, so that a more attractive or more characteristic building outer wall structure outline is molded; due to the arrangement of the connecting positions of the external wall heat preservation and decoration integrated plate, the reasonability of component arrangement is higher, and the reliability and attractiveness of connection between components are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of building engineering applied to exterior walls, and specifically relates to a composite exterior wall structure of a GRC board and an exterior wall thermal insulation and decorative integrated board and a construction process. Background Art

[0002] In recent years, external insulation materials have gradually developed in the direction of factory production, finished products, panel production and standardization. Insulation and decorative integrated panels have emerged and gradually become one of the mainstream technologies of building exterior wall systems.

[0003] GRC material is a new type of lightweight building material that is made by combining glass fiber with base materials such as cement and sand through a special process. The outstanding features of GRC boards made of GRC materials are: low weight, strong tensile and flexural strength, good fire resistance and toughness. This material structure is particularly suitable for making building exterior shapes. The design scheme of using GRC boards and exterior wall insulation and decorative integrated panels for composite exterior wall structures can simultaneously meet the functional requirements of building exterior walls such as insulation and energy saving and beautiful and diverse shapes. However, the design scheme of using GRC boards and exterior wall insulation and decorative integrated panels for composite exterior wall structures in the prior art usually cannot effectively guarantee the reliability of the connection.

[0004] Therefore, it is urgently necessary to provide a composite exterior wall structure and construction process of GRC panels and exterior wall insulation and decoration integrated panels with more reasonable component layout, higher connection reliability between components, and longer overall service life under complex exterior wall modeling.

[0005] In view of this, this application is hereby filed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art in that the composite exterior wall structure has low structural stability and reliability, and the purpose is to provide a composite exterior wall structure of a GRC board and an exterior wall insulation and decoration integrated board with a more reasonable component layout and more reliable connection between components.

[0007] Another object of the present invention is to provide a construction process applied to the composite exterior wall structure of the above-mentioned GRC board and the exterior wall thermal insulation and decoration integrated board.

[0008] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a composite exterior wall structure of a GRC board and an exterior wall thermal insulation decorative integrated board, the composite exterior wall structure is installed on the outside of the main body of the building exterior wall, and the composite exterior wall structure includes:

[0009] A first galvanized angle steel, wherein the first galvanized angle steel is connected to the outer side of the main body of the building exterior wall; the first galvanized angle steel comprises two intersecting and mutually connected first side plates and a second side plate, wherein the first side plate is arranged parallel to the outer side surface of the main body of the building exterior wall;

[0010] Galvanized round steel, one end of which is connected to the second side plate of the first galvanized angle steel; a plurality of galvanized round steels are provided, and the plurality of galvanized round steels are all connected to the second side plate of the first galvanized angle steel;

[0011] A GRC plate, the GRC plate being connected to an end of the galvanized round steel away from the first galvanized angle steel; a plurality of the GRC plates are provided, and the plurality of the GRC plates intersect and are connected to each other;

[0012] The exterior wall thermal insulation and decoration integrated panel is connected to the exterior wall main body of the building and the side of the GRC panel away from the exterior wall main body of the building.

[0013] According to an embodiment of the present invention, the first galvanized angle steel is connected to the main body of the building exterior wall by means of expansion bolts.

[0014] According to one embodiment of the present invention, a plurality of expansion bolts are provided on the first side plate of the galvanized angle steel.

[0015] According to an embodiment of the present invention, one end of the galvanized round steel away from the first galvanized angle steel is connected to the GRC board by welding.

[0016] According to one embodiment of the present invention, anti-rust paint is applied on the welding points where the galvanized round steel and the GRC plate are connected.

[0017] According to one embodiment of the present invention, the composite exterior wall structure further comprises: a second galvanized angle steel, the second galvanized angle steel is connected to the outer side of the building exterior wall body through the expansion bolt; the second galvanized angle steel comprises two intersecting and interconnected third side plates and a fourth side plate, the third side plate is arranged parallel to the outer side surface of the building exterior wall body;

[0018] The edge of the exterior wall thermal insulation and decoration integrated panel abuts against the fourth side panel of the second galvanized angle steel.

[0019] According to an embodiment of the present invention, the composite exterior wall structure further comprises: an anchor, wherein a plurality of anchors are provided;

[0020] The anchor is connected to the main body of the building exterior wall through the expansion bolts, and the anchor is connected to the GRC board through the petal expansion bolts;

[0021] The anchoring member comprises:

[0022] A supporting member, wherein the supporting member comprises a fifth side plate and a sixth side plate which are vertically connected, wherein the fifth side plate is arranged in parallel with the outer side surface of the main body of the building exterior wall, or the fifth side plate is arranged in parallel with a side of the GRC plate away from the main body of the building exterior wall; an end of the sixth side plate away from the fifth side plate extends in a direction away from the main body of the building exterior wall;

[0023] A support member, one end of which is connected to the fifth side plate of the supporting member, and one end of which is away from the supporting member connects two adjacent exterior wall thermal insulation and decorative integrated panels.

[0024] According to one embodiment of the present invention, the exterior wall thermal insulation decorative integrated panel comprises a finishing layer, an adhesive layer and an insulation layer arranged layer by layer, and the insulation layer is arranged with a side away from the finishing layer toward the outer side surface close to the main body of the building exterior wall;

[0025] The support member comprises:

[0026] A first flat plate, wherein a side of the first flat plate close to the outer side of the building exterior wall main body is arranged parallel to a side of the facing layer of the exterior wall thermal insulation decorative integrated plate away from the thermal insulation layer;

[0027] A second flat plate, the second flat plate is arranged in parallel with the first flat plate, and a side of the second flat plate away from the outer side surface of the building exterior wall main body is arranged in parallel with a side of the facing layer of the exterior wall thermal insulation decorative integrated plate close to the thermal insulation layer; along the extension direction of the sixth side plate, the distance between the second flat plate and the first flat plate is equal to the thickness of the facing layer; along the extension direction parallel to the sixth side plate, the projection of the second flat plate is larger than the projection of the first flat plate;

[0028] A support plate is arranged in parallel with the sixth side plate and connected to the sixth side plate; the support plate passes through the second flat plate and is vertically connected to the first flat plate.

[0029] The present application also provides a construction process of a composite exterior wall structure of a GRC board and an exterior wall thermal insulation decorative integrated board, which is applied to the above-mentioned GRC board and exterior wall thermal insulation decorative integrated board composite exterior wall structure. The construction process of the composite exterior wall structure comprises the following steps:

[0030] S1. Install the first galvanized angle steel on the main body of the building exterior wall using expansion bolts;

[0031] S2, connecting the galvanized round steel to the first galvanized angle steel;

[0032] S3, connecting the GRC plate to the first galvanized angle steel through galvanized round steel;

[0033] S4. Anchors are set on the main body of the building exterior wall and / or the GRC board;

[0034] S5. Install the exterior wall thermal insulation decorative integrated panel on the main body of the building exterior wall and / or the GRC panel through anchors;

[0035] S6. Apply weather-resistant glue in the gaps between multiple exterior wall insulation and decorative integrated panels.

[0036] According to one embodiment of the present invention, after step S4 and before step S5, the method further includes the following step: S4.5, applying bonding mortar on one side of the exterior wall thermal insulation and decoration integrated panel close to the main body of the building exterior wall.

[0037] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0038] In the present invention, by setting the GRC board, a more beautiful or more distinctive building exterior wall structure contour is created, providing a position reference and structural support for the setting of the exterior wall thermal insulation decoration integrated board; the setting of the connection position of the exterior wall thermal insulation decoration integrated board makes the component layout more reasonable, which not only improves the connection reliability between the components, but also improves the aesthetics of the composite exterior wall structure.

[0039] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0041] Figure 1 This is a structural schematic diagram of a composite exterior wall structure of a GRC board and an exterior wall thermal insulation and decoration integrated board in an embodiment of the present invention;

[0042] Figure 2 This is a schematic structural diagram of a GRC board in an embodiment of the present invention;

[0043] Figure 3 This is a schematic structural diagram of another GRC board in an embodiment of the present invention;

[0044] Figure 4 It is a schematic diagram of the structure of the anchor member in an embodiment of the present invention;

[0045] Figure 5This is a plan view of the anchor installation in an embodiment of the present invention;

[0046] Figure 6 It is a schematic diagram of the connection structure between the anchor piece and the GRC plate through the petal expansion bolts in a cross-sectional perspective in an embodiment of the present invention.

[0047] Description of the main components in the figure:

[0048] 1. The main body of the building's exterior wall; 2. The first galvanized angle steel; 3. Galvanized round steel; 4. GRC board; 5. Exterior wall insulation and decorative integrated board; 51. Finishing layer; 52. Adhesive layer; 53. Insulation layer; 6. Anchors; 61. Supporting parts; 62. Supporting parts; 621. The first flat plate; 622. The second flat plate; 623. The support plate; 63. The fifth side plate; 64. The sixth side plate; 7. The second galvanized angle steel; 8. Expansion bolts; 9. Petal expansion bolts.

[0049] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0051] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0052] In the description of the present invention, it should be noted 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 or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] like Figures 1 to 6 As shown, a composite exterior wall structure of a GRC board and an exterior wall thermal insulation decorative integrated board according to the present invention is installed on the outside of a main body 1 of an exterior wall of a building, and the composite exterior wall structure comprises:

[0054] A first galvanized angle steel 2, wherein the first galvanized angle steel 2 is connected to the outer side of the building exterior wall main body 1 (the side of the building exterior wall main body 1 away from the interior); the first galvanized angle steel 2 comprises two intersecting and mutually connected first side panels and a second side panel, wherein the first side panel is arranged parallel to the outer side surface of the building exterior wall main body 1 (the first side panel is attached to the outer side surface of the building exterior wall main body 1); the angle formed between the first side panel and the second side panel is an acute angle, a right angle or an obtuse angle; the second side panel extends in a direction away from the building exterior wall main body 1 at one end away from the first side panel (the end of the second side panel not connected to the first side panel);

[0055] A galvanized round steel 3, one end of which is connected to the second side plate of the first galvanized angle steel 2; a plurality of galvanized round steels 3 are provided, and the plurality of galvanized round steels 3 are all connected to the second side plate of the first galvanized angle steel 2; the plurality of galvanized round steels 3 are connected on the same side or on two opposite sides of the second side plate;

[0056] A GRC plate 4, wherein the GRC plate 4 is connected to an end of the galvanized round steel 3 away from the first galvanized angle steel 2; a plurality of the GRC plates 4 are provided, and the plurality of the GRC plates 4 intersect and are connected to each other;

[0057] The exterior wall thermal insulation decorative integrated panel 5 is connected to the outer side of the building exterior wall main body 1 and the side of the GRC panel 4 away from the building exterior wall main body 1 .

[0058] In the present invention, by setting the GRC board 4, a more beautiful or more distinctive building exterior wall structure outline is created, providing a position reference and structural support for the setting of the exterior wall thermal insulation decoration integrated board 5; the setting of the connection position of the exterior wall thermal insulation decoration integrated board 5 makes the component layout more reasonable, which not only improves the connection reliability between the components, but also improves the aesthetics of the composite exterior wall structure.

[0059] In a specific implementation of this embodiment, the size of the first galvanized angle steel 2 is 25*25*4mm;

[0060] Wherein, 25*25 means that the length of the first side plate and the second side plate of the first galvanized angle steel 2 are both 25 mm;

[0061] 4 indicates that the thickness of the first side plate and the second side plate of the first galvanized angle steel 2 are both 4 mm.

[0062] Please refer to the attached Figure 1 To Attachment Figure 3In a specific implementation of this embodiment, the first galvanized angle steel 2 (the first side plate) is connected to the building exterior wall body 1 by means of expansion bolts 8;

[0063] The first galvanized angle steel 2 connects the expansion bolts 8 in series, and the waterproofing is fixed by perforating, so that the expansion bolts 8 and the first galvanized angle steel 2 are firmly fixed.

[0064] In a specific implementation of this embodiment, the expansion bolt 8 is an M8 expansion bolt or an M12 expansion bolt.

[0065] In a specific implementation of the present embodiment, a plurality of expansion bolts 8 are provided on the first side plate of the first galvanized angle steel 2; and the distance between any two adjacent expansion bolts 8 among the plurality of expansion bolts 8 is greater than or equal to 300 mm.

[0066] In the present invention, the connection points between the first galvanized angle steel 2 and the main body 1 of the building exterior wall are more evenly distributed, which can evenly transfer the weight of the composite exterior wall structure and other possible external forces to the main body 1 of the building exterior wall, avoiding excessive local stress and enhancing the stability and bearing capacity of the entire structure; the distance limitation of adjacent expansion bolts 8 not only provides construction space for the installation of the component, improves construction efficiency and installation quality, but also reduces the problem of intensive stress concentration caused by wall deformation, helps to protect the structural integrity of the main body of the building exterior wall, thereby extending the service life of the entire building structure.

[0067] In a specific implementation of this embodiment, the diameter of the galvanized round steel 3 is 6 mm.

[0068] In a specific implementation of this embodiment, one end of the galvanized round steel 3 away from the first galvanized angle steel 2 is connected to the GRC board 4 (the inner lining steel bar) by welding (lap welding).

[0069] In a specific implementation of this embodiment, the welding points / welds connecting the galvanized round steel 3 and the GRC plate 4 are painted with anti-rust paint.

[0070] It should be pointed out that the Figure 2 and attached Figure 3 The diagram shows the arrangement of GRC panels at two different wall locations;

[0071] Attached Figure 2 The GRC board 4 shown is on the vertical surface of the main body 1 of the building exterior wall;

[0072] Attached Figure 3 What is shown is the GRC board 4 at the window lintel of the main body 1 of the building exterior wall;

[0073] The GRC board 4 in the two figures can be a combination of multiple boards with different planes, or can be an integrated (containing multiple planes) modeling board.

[0074] Please see attached Figure 3 In a specific implementation of this embodiment, the composite exterior wall structure further includes: a second galvanized angle steel 7, the second galvanized angle steel 7 is connected to the outer side of the building exterior wall body 1 through the expansion bolt 8;

[0075] The second galvanized angle steel 7 includes two intersecting and interconnected third side plates and a fourth side plate, the third side plate is arranged in parallel with the outer side surface of the building exterior wall main body 1 (the third side plate is attached to the outer side of the building exterior wall main body 1); the angle between the third side plate and the fourth side plate is an acute angle, a right angle or an obtuse angle; the end of the fourth side plate away from the third side plate (the end of the fourth side plate not connected to the third side plate) extends in a direction away from the outer side surface of the building exterior wall main body 1;

[0076] The edge of the exterior wall thermal insulation decorative integrated panel 5 abuts against the fourth side panel of the second galvanized angle steel 7; the edge of the exterior wall thermal insulation decorative integrated panel 5 abuts against the side of the fourth side panel close to the third side panel.

[0077] In the present invention, by providing the second galvanized angle steel 7, a bearing point is provided for a position on the building where a load-bearing structure cannot be installed, thereby ensuring the reliability of the installation of the GRC board 4.

[0078] Please see attached Figure 1 , Attachment Figure 4 and attached Figure 5 In a specific implementation of this embodiment, the composite exterior wall structure further includes: an anchor 6, wherein a plurality of anchors 6 are provided; and the plurality of anchors 6 are arranged in a rectangular array;

[0079] The anchor 6 is connected to the building exterior wall body 1 through the expansion bolt 8, and / or the anchor 6 is connected to the GRC board 4 through the petal expansion bolt 9 (the petal expansion bolt 9 is an existing component in the art, and this embodiment does not involve the optimization and improvement of its structure, which will not be described in detail);

[0080] Wherein, the anchoring depth of the expansion bolt 8 and / or the petal expansion bolt 9 to the anchor 6 is greater than or equal to 60 mm.

[0081] Please see attached Figure 1 and attached Figure 5 In a specific implementation of this embodiment, the anchor 6 includes:

[0082] A supporting member 61, wherein the supporting member 61 comprises a fifth side plate 63 and a sixth side plate 64 connected (perpendicularly to each other), wherein the fifth side plate 63 is arranged in parallel with the outer side surface of the building exterior wall main body 1 (the fifth side plate 63 is attached to the outer side surface of the building exterior wall main body 1), or the fifth side plate 63 is arranged in parallel with a side of the GRC board 4 away from the building exterior wall main body 1 (the fifth side plate 63 is attached to the GRC board); an end of the sixth side plate 64 away from the fifth side plate 63 (an end of the sixth side plate 64 not connected to the fifth side plate 63) extends in a direction away from the building exterior wall main body 1;

[0083] The support member 62 has one end connected to the sixth side plate 64 of the supporting member 61 , and one end of the support member 62 away from the supporting member 61 connects two adjacent exterior wall thermal insulation and decorative integrated panels 5 .

[0084] In a specific implementation of this embodiment, the end of the support member 62 away from the supporting member 61 connects two adjacent exterior wall thermal insulation and decorative integrated panels 5 on the same plane.

[0085] Please see attached Figure 1 In a specific implementation of the present embodiment, the exterior wall thermal insulation and decoration integrated panel 5 includes a finishing layer 51, an adhesive layer 52 and an insulation layer 53 arranged layer by layer, the finishing layer 51 is arranged on a side of the exterior wall thermal insulation and decoration integrated panel 5 away from the building exterior wall main body 1, and the insulation layer 53 is away from the finishing layer 51 and close to the outer side of the building exterior wall main body 1.

[0086] In a specific implementation of this embodiment (not shown in the figure), the thermal insulation layer 53 includes: a thermal insulation layer inner shell, a thermal insulation medium and a thermal insulation layer outer shell.

[0087] In a specific implementation of this embodiment, the finishing layer 51 is an ultra-thin stone finishing layer.

[0088] Please see attached Figure 4 In a specific implementation of this embodiment, the support member 62 includes:

[0089] A first flat plate 621, wherein a side of the first flat plate 621 close to the outer side of the building exterior wall main body 1 is arranged in parallel with a side of the facing layer 51 of the exterior wall thermal insulation decorative integrated plate 5 away from the thermal insulation layer 53;

[0090] A second flat plate 622, the second flat plate 622 is arranged in parallel with the first flat plate 621; the side of the second flat plate 622 away from the outer side surface of the building exterior wall main body 1 is arranged in parallel with the side of the finishing layer 51 of the exterior wall thermal insulation decorative integrated panel 5 close to the thermal insulation layer 53; the horizontal plane height of the second flat plate 622 is lower than the horizontal plane height of the first flat plate 621; along the extension direction of the sixth side panel 64, the distance between the second flat plate 622 and the first flat plate 621 is (slightly greater than or) equal to the thickness of the finishing layer 51; along the extension direction parallel to the sixth side panel 64, the projection of the second flat plate 622 is greater than the projection of the first flat plate 621; the second flat plate 622 and the first flat plate 621 clamp the finishing layer 51 of the exterior wall thermal insulation decorative integrated panel 5;

[0091] The support plate 623 is arranged parallel to the sixth side plate 64 and connected to the sixth side plate 64 ; the support plate 623 penetrates the second flat plate 622 and is vertically connected to the first flat plate 621 .

[0092] In the present invention, the facing layer 51 can be firmly fixed in a designated position by clamping two flat plates, avoiding displacement due to external forces (such as wind, collision, etc.) during installation or use, ensuring the overall stability and appearance integrity of the exterior wall thermal insulation decorative integrated panel 5; the facing layer 51 may be warped and deformed under the influence of environmental factors (such as temperature changes, humidity changes) (or local damage). The clamping effect of the second flat plate 622 and the first flat plate 621 can help limit the deformation of the facing layer 51, ensuring that it always maintains a good flat state and maintains a consistent decorative style; the second flat plate 622 and the first flat plate 621 are tightly clamped with the facing layer 51, so that a synergistic force relationship can be formed between them; when the exterior wall thermal insulation decorative integrated panel 5 is subjected to external force, the force can be evenly transmitted to the two flat plates through the facing layer 51, and then dispersed to the entire composite exterior wall structure, thereby improving the ability of the entire structure to resist external forces.

[0093] In a specific implementation of this embodiment, the fifth side plate 63 of the supporting member 61 of the anchor member 6 is connected to the outer surface of the building exterior wall body 1 by using the expansion bolt 8;

[0094] The fifth side plate 63 of the supporting member 61 of the anchor member 6 is connected to the GRC plate 4 by using the petal expansion bolt 9;

[0095] The support plate 623 of the support member 62 is connected to the sixth side plate 64 of the supporting member 61 by means of connecting bolts;

[0096] The second flat plate 622 and the first flat plate 621 clamp the finishing layer 51 of the exterior wall thermal insulation and decoration integrated plate 5 .

[0097] In a specific implementation of this embodiment, the distance between the anchor 6 and the edge of the exterior wall thermal insulation decorative integrated panel 5 is not less than 100 mm and not more than 200 mm;

[0098] The distance between the plurality of anchors 6 is not less than 200 mm and not more than 500 mm;

[0099] The number of anchors 6 on each exterior wall thermal insulation decorative integrated panel 5 is greater than or equal to 4;

[0100] At least six anchors 6 are arranged on each square meter of the exterior wall thermal insulation decoration integrated panel 5 .

[0101] Please refer to the attached Figure 1 and attached Figure 4 In a specific implementation of this embodiment, a first waist-shaped hole is provided on the fifth side plate 63 of the supporting member 61, and a second waist-shaped hole is provided on the sixth side plate 64;

[0102] The support member 61 of the anchor member 6 is connected to the main body 1 of the building exterior wall by passing the expansion bolt 8 through the first waist-shaped hole, and / or,

[0103] Connect the supporting member 61 of the anchor member 6 to the GRC board 4 by passing the petal expansion bolt 9 through the first waist-shaped hole;

[0104] The support plate 623 of the support member 62 of the anchor 6 is connected to the sixth side plate 64 of the supporting member 61 of the anchor 6 by passing the connecting bolt through the second waist-shaped hole (the connecting bolt passes through one end of the second waist-shaped hole and is connected to the nut matching the connecting bolt).

[0105] Please refer to the attached Figure 6 In a specific implementation of this embodiment, the petal expansion bolt 9 includes a deformable expansion tube, and a petal-shaped expansion piece is provided on the expansion tube;

[0106] After the petal expansion bolt 9 is deformed, the petal-shaped expansion piece of the expansion tube of the petal expansion bolt 9 abuts against the side of the GRC board 4 close to the main body 1 of the building exterior wall;

[0107] The petal expansion bolts 9 connect the supporting member 61 of the anchor member 6 to the GRC board 4 .

[0108] In the present application, by providing the petal expansion bolts 9, the deficiency in the prior art that the exterior wall insulation and decoration integrated panel 5 cannot be effectively connected to the GRC panel 4 is solved, so that the component layout of the composite exterior wall structure is more reasonable, the connection reliability between components is higher, and the overall service life is longer.

[0109] The present invention also provides a construction process of a GRC board and an external wall thermal insulation decorative integrated board composite external wall structure applied to the above-mentioned GRC board and external wall thermal insulation decorative integrated board composite external wall structure, and the construction process of the composite external wall structure comprises the steps of:

[0110] S1, installing the first galvanized angle steel 2 on the building exterior wall main body 1 using expansion bolts 8;

[0111] S2, connecting the galvanized round steel 3 to the first galvanized angle steel 2 (by welding);

[0112] S3, connecting the GRC plate 4 to the first galvanized angle steel 2 through the galvanized round steel 3 (by welding the two);

[0113] S4, setting anchors 6 on the building exterior wall body 1 and / or the GRC board 4;

[0114] S5, installing the exterior wall thermal insulation decorative integrated panel 5 on the building exterior wall main body 1 and / or the GRC panel 4 through the anchor 6;

[0115] S6. Apply weather-resistant glue in the gaps between the plurality of exterior wall thermal insulation and decorative integrated panels 5.

[0116] In a specific implementation of this embodiment, before applying the weather-resistant glue, first use a paper adhesive tape to stick along the edge of the seam width, and then apply the weather-resistant glue (weather-resistant joint glue);

[0117] The weather-resistant glue covers the board surface with a width of 2-3mm, the glue width is 8-15mm, and the glue depth is 3-5mm;

[0118] After applying glue, peel off the paper tape.

[0119] In a specific implementation of this embodiment, after step S4 and before step S5, the following steps are further included:

[0120] S4.5. Apply bonding mortar to the side of the exterior wall thermal insulation and decoration integrated panel 5 close to the building exterior wall body 1.

[0121] In a specific implementation of this embodiment, the external wall thermal insulation decorative integrated panel 5 is coated with bonding mortar by a point bonding method or a strip bonding method;

[0122] For the spot bonding method or the strip bonding method, the area of ​​the applied bonding mortar accounts for more than 40% of the area of ​​the exterior wall thermal insulation decorative integrated board 5;

[0123] For the point sticking method, the diameter of each sticking point is required to be greater than 100 mm, and each wall insulation decoration integrated board 5 must not be less than 6 sticking points.

[0124] By applying the construction process of a composite exterior wall structure of a GRC board and an exterior wall thermal insulation decorative integrated board provided by the present invention, the components are sequentially installed on the outer side of the building exterior wall main body 1 to form the composite exterior wall structure;

[0125] The composite exterior wall structure has a more reasonable component layout, higher reliability of connection between components, and longer service life of the entire structure while meeting the requirements of complex exterior wall shapes.

[0126] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A composite exterior wall structure of a GRC board and an exterior wall thermal insulation decorative integrated board, the composite exterior wall structure being installed on the outside of a building exterior wall body (1), characterized in that: The composite exterior wall structure comprises: A first galvanized angle steel (2), the first galvanized angle steel (2) being connected to the outer side of the building exterior wall body (1); the first galvanized angle steel (2) comprising two intersecting and mutually connected first side plates and a second side plate, the first side plate being arranged parallel to the outer side surface of the building exterior wall body (1); A galvanized round steel (3), one end of which is connected to the second side plate of the first galvanized angle steel (2); a plurality of galvanized round steels (3) are provided, and the plurality of galvanized round steels (3) are all connected to the second side plate of the first galvanized angle steel (2); A GRC plate (4), the GRC plate (4) being connected to an end of the galvanized round steel (3) away from the first galvanized angle steel (2); a plurality of the GRC plates (4) are provided, and the plurality of the GRC plates (4) intersect and are connected to each other; An integrated exterior wall thermal insulation and decoration panel (5), wherein the integrated exterior wall thermal insulation and decoration panel (5) is connected to the main building exterior wall body (1) and the side of the GRC panel (4) away from the main building exterior wall body (1).

2. A composite exterior wall structure of a GRC board and an exterior wall thermal insulation and decoration integrated board according to claim 1, characterized in that: The first galvanized angle steel (2) is connected to the building exterior wall body (1) via an expansion bolt (8); The expansion bolt (8) is an M8 expansion bolt or an M12 expansion bolt.

3. The composite exterior wall structure of a GRC board and an exterior wall thermal insulation and decoration integrated board according to claim 2, characterized in that: A plurality of expansion bolts (8) are arranged on the first side plate of the galvanized angle steel (2); the distance between any two adjacent expansion bolts among the plurality of expansion bolts (8) is greater than or equal to 300 mm.

4. The composite exterior wall structure of a GRC board and an exterior wall thermal insulation and decoration integrated board according to claim 2, characterized in that: The diameter of the galvanized round steel (3) is 6 mm; One end of the galvanized round steel (3) away from the first galvanized angle steel (2) is connected to the GRC plate (4) by welding.

5. The composite exterior wall structure of a GRC board and an exterior wall thermal insulation and decoration integrated board according to claim 4, characterized in that: The welding points where the galvanized round steel (3) and the GRC plate (4) are connected are painted with anti-rust paint.

6. The composite exterior wall structure of a GRC board and an exterior wall thermal insulation and decoration integrated board according to claim 2, characterized in that: The composite exterior wall structure further comprises: a second galvanized angle steel (7), the second galvanized angle steel (7) being connected to the outer side of the building exterior wall body (1) via the expansion bolts (8); the second galvanized angle steel (7) comprising two intersecting and mutually connected third side plates and a fourth side plate, the third side plate being arranged parallel to the outer side surface of the building exterior wall body (1); The edge of the exterior wall thermal insulation decorative integrated panel (5) abuts against the fourth side panel of the second galvanized angle steel (7).

7. A composite exterior wall structure of a GRC board and an exterior wall thermal insulation and decoration integrated board according to any one of claims 2 to 6, characterized in that: The composite exterior wall structure further comprises: an anchor (6), wherein a plurality of anchors (6) are provided; The anchor (6) is connected to the building exterior wall body (1) via the expansion bolt (8), and the anchor (6) is connected to the GRC board (4) via the petal expansion bolt (9); The anchor (6) comprises: A supporting member (61), the supporting member (61) comprising a fifth side plate and a sixth side plate connected vertically, the fifth side plate being arranged in parallel with the outer side surface of the building exterior wall body (1), or the fifth side plate being arranged in parallel with a side of the GRC plate (4) away from the building exterior wall body (1); an end of the sixth side plate away from the fifth side plate extending in a direction away from the building exterior wall body (1); A support member (62), one end of the support member (62) is connected to the sixth side plate of the supporting member (61), and one end of the support member (62) away from the supporting member (61) connects two adjacent external wall thermal insulation decorative integrated panels (5).

8. The composite exterior wall structure of a GRC board and an exterior wall thermal insulation and decoration integrated board according to claim 7, characterized in that: The exterior wall thermal insulation decorative integrated panel (5) comprises a finishing layer (51), an adhesive layer (52) and a thermal insulation layer (53) which are arranged layer by layer, and the thermal insulation layer (53) is arranged with a side away from the finishing layer (51) facing toward the outer side surface close to the building exterior wall body (1); The support member (62) comprises: A first flat plate (621), wherein a side of the first flat plate (621) close to the outer side surface of the building exterior wall body (1) is arranged in parallel with a side of the finishing layer (51) of the exterior wall thermal insulation decorative integrated plate (5) away from the thermal insulation layer (53); A second flat plate (622), the second flat plate (622) being arranged in parallel with the first flat plate (621), and a side of the second flat plate (622) away from the outer side surface of the building exterior wall body (1) being arranged in parallel with a side of the finishing layer (51) of the exterior wall thermal insulation decorative integrated plate (5) close to the thermal insulation layer (53); along the extension direction of the sixth side plate, the distance between the second flat plate (622) and the first flat plate (621) is equal to the thickness of the finishing layer (51); along the extension direction parallel to the sixth side plate, the projection of the second flat plate (622) is larger than the projection of the first flat plate (621); A support plate (623), wherein the support plate (623) is arranged in parallel with the sixth side plate and connected to the sixth side plate; the support plate (623) passes through the second flat plate (622) and is vertically connected to the first flat plate (621).

9. A construction process for a composite exterior wall structure of a GRC board and an exterior wall thermal insulation decorative integrated board, applied to the GRC board and an exterior wall thermal insulation decorative integrated board composite exterior wall structure according to any one of claims 1 to 8, characterized in that: The construction process of the composite exterior wall structure comprises the following steps: S1, installing the first galvanized angle steel (2) on the main body (1) of the building exterior wall by using expansion bolts; S2, connecting the galvanized round steel (3) to the first galvanized angle steel (2); S3, connecting the GRC plate (4) to the first galvanized angle steel (2) via the galvanized round steel (3); S4, setting anchors (6) on the building exterior wall body (1) and / or the GRC board (4); S5, installing the exterior wall thermal insulation decorative integrated panel (5) on the building exterior wall main body (1) and / or the GRC panel (4) through the anchoring piece (6); S6. Apply weather-resistant glue in the gaps between the plurality of exterior wall thermal insulation decorative integrated panels (5).

10. The construction process of a composite exterior wall structure of a GRC board and an exterior wall thermal insulation and decoration integrated board according to claim 9, characterized in that: After step S4 and before step S5, the following steps are also included: S4.

5. Apply bonding mortar to the side of the exterior wall thermal insulation decorative integrated panel (5) close to the building exterior wall body (1).

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