An aerated concrete thermal insulation external wall panel system and a construction method thereof

Abstract

The application discloses an aerated concrete heat-insulation outer wall plate system, which comprises a base plate, a closed cavity is formed in the base plate, a plurality of reinforcing columns are formed in the cavity, a machine heat-insulation waterproof layer is formed on the inner wall of the cavity and the outer wall of the reinforcing columns; a ladder-shaped groove and a first C-shaped groove are arranged on one side of the base plate along the length direction, the other side of the base plate is provided with a ladder-shaped convex block matched with the ladder-shaped groove and a second C-shaped groove matched with the first C-shaped groove; a mounting hole is formed in the lower end of the base plate; a supporting piece with reinforcing ribs is arranged in the mounting hole; and an FRP connecting piece is arranged through the upper end of the base plate. The supporting piece, the FRP connecting piece and the L-shaped connecting piece are connected with the main body structure, the wall plate has high heat-insulation performance and the cold bridge phenomenon is reduced, better connection reliability and safety are obtained, and the three-layer waterproof structure is adopted, so that the problem of water leakage is better solved.

Description

Technical Field

[0001] This invention relates to the fields of building assembly and insulation technology, and more specifically to an aerated concrete insulated exterior wall panel system and its construction method. Background Technology

[0002] With the nation's vigorous promotion of steel structure prefabricated buildings, lightweight concrete wall panels are widely used. The most important aspects of exterior wall panel installation are reliable installation quality and safe use, as well as preventing water seepage. Simultaneously, with increasing demands for thermal insulation and energy conservation, how to conveniently and reliably solve the cold bridging problem of exterior wall installation connectors is an urgent issue faced in practical engineering. In particular, there is still no excellent solution for the external installation of self-insulating integrated exterior wall panels. This invention solves the problems of reliable and safe connection by setting pre-drilled installation holes at the bottom of the wall panel and connecting it to the main structure through specially designed pre-embedded brackets, connectors, FRP connectors, and bolts. The three-layer waterproof structure solves the waterproofing problem. Summary of the Invention

[0003] In view of the above, the present invention provides an aerated concrete insulated exterior wall panel system and its construction method. The purpose is to address the aforementioned shortcomings.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: An aerated concrete insulated exterior wall panel system includes multiple base panels, each base panel forming a closed cavity, and multiple reinforcing columns forming within the cavity. An organic thermal insulation and waterproof layer is formed on the inner wall of the cavity and the outer wall of the reinforcing columns. A polyurethane foam insulation material layer is injected into the cavity. Each base panel has a trapezoidal groove and a first C-shaped groove on one side along its length, and a trapezoidal protrusion adapted to the trapezoidal groove and a second C-shaped groove corresponding to the first C-shaped groove on the other side. Each of the base plates has an installation hole inside its lower end; a support member with reinforcing ribs is provided in the installation hole, and the lower end of the base plate is welded to the embedded part on the upper side of the external frame steel beam through the support member; an FRP connector is provided through the upper end of each base plate; one side of the FRP connector protrudes from the base plate and is welded to the lower end of the frame steel beam through an L-shaped tie.

[0005] Preferably, each base plate has an L-shaped protrusion at its lower end below the mounting hole; correspondingly, the upper end of the base plate has an L-shaped groove that matches the L-shaped protrusion; after the upper and lower base plates are assembled, the joint between the plates forms a staggered platform with the outer side lower than the inner side.

[0006] Preferably, each of the base plates has a filling hole located at the mounting hole position, and the filling hole communicates with the mounting hole.

[0007] Preferably, the support member is configured as T-shaped or Z-shaped, and a fixing iron piece is vertically welded to its supporting surface.

[0008] Preferably, each of the base plates has a fire-resistant isolation strip between floors at the contact surface with the frame steel beams and columns.

[0009] Preferably, each of the base plates has a waterproof interface layer on the side away from the frame steel beam.

[0010] Preferably, the base plate is provided with a thermal insulation mortar leveling layer, a crack-resistant layer, and a finishing layer in sequence on the side away from the frame steel beam.

[0011] Preferably, the FRP connector has a square or round anchor head at one end and a nut at the other end.

[0012] Preferably, the anchor head is made of high-strength plastic, FRP, or steel.

[0013] Preferably, the anchor head is flush with the surface of the base plate.

[0014] Meanwhile, the present invention also provides a construction method for an aerated concrete insulated exterior wall panel system, comprising the following steps: 1) Laying out and arranging panels: First, design the panel layout based on the design drawings and the actual site conditions; cut and groove wall panels with a width smaller than the standard; determine the quantity and location of aerated concrete composite insulation wall panels and their supporting components and L-shaped tie pieces; 2) According to the layout diagram of the aerated concrete composite insulation strip, mark the installation control lines on the main structure, install the support brackets on the embedded parts at the upper end of the frame steel beam; install the L-shaped tie members on the lower end of the frame steel beam, and weld the L-shaped tie members to the lower flange of the frame steel beam segment. 3) Connection with the main structure: Hoist one of the prefabricated wall panels from step 1) onto the support bracket, so that the fixing iron of the support bracket is inserted into the mounting hole at the lower end of the wall panel, and weld the extension of the support bracket to the embedded part of the upper floor slab of the frame steel beam; fix the L-shaped tie member to the upper part of the other prefabricated wall panel with FRP connector, and fix it to the lower end of the frame steel beam. 4) Inserting PE rods: When splicing two precast wall panels, insert PE rods. The diameter of the PE rods should be larger than the diameter of the C-groove. 5) Adjust the axial position and joint width of the aerated concrete composite insulation strip. Adjusting the gap between the mounting hole and the support member, and adjusting the position of the L-shaped tie member, can adjust the axial position and joint width of the precast wall panel, thereby controlling the installation accuracy of the wall panel. 6) Joint treatment After adjusting the position of the precast wall panels, inject polymer mortar or special grouting grout into the joints between the panels; fill the joints between the upper and lower precast wall panels with structural adhesive. 7) Grouting of mounting holes Use a grouting device to inject the bonding mortar into the installation hole through the filling hole; 8) Wall leveling and finishing construction Apply a leveling layer of thermal insulation mortar to the side of the base plate (1) away from the frame steel beam. The thickness of the thermal insulation mortar is 10-25mm to level the wall surface. After the thermal insulation mortar leveling layer dries, a 3-5mm thick polymer cement mortar is evenly applied and alkali-resistant fiberglass mesh is pressed in to form a crack-resistant layer. After the crack-resistant layer dries, apply flexible water-resistant putty and elastic coating to form the finishing layer.

[0015] The present invention achieves the following technical effects compared to the prior art: This invention achieves better connection reliability and safety by setting brackets, FRP connectors, and L-shaped tie members to connect with the main structure, while ensuring that the wall panel has high thermal insulation performance and eliminating cold bridging. Furthermore, this invention better solves the waterproofing problem by adopting a three-layer waterproof structure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the construction structure of an aerated concrete insulated exterior wall panel system according to the present invention; Figure 2 This is a schematic diagram of the assembly between wall panels of an aerated concrete insulated exterior wall panel system according to the present invention; Figure 3 This is a schematic diagram of the Z-type support structure of an aerated concrete insulated exterior wall panel system according to the present invention; Figure 4 This is a schematic diagram of the T-shaped bracket structure of an aerated concrete insulated exterior wall panel system according to the present invention; In the diagram: 1. Base plate; 101. Trapezoidal protrusion; 102. Second C-groove; 11. Trapezoidal groove; 12. First C-groove; 13. Mounting hole; 14. Filling hole; 15. L-shaped protrusion; 16. L-shaped groove; 2. Polyurethane foam insulation material layer; 3. Supporting component; 4. Frame steel beam; 5. L-shaped tie; 6. FRP connector. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example

[0019] Reference Figure 1-4 The diagram illustrates an aerated concrete insulated exterior wall panel system, comprising a base plate 1, wherein a closed cavity is formed inside the base plate 1, and multiple reinforcing columns are formed within the cavity. An organic thermal insulation and waterproof layer is formed on both the inner wall of the cavity and the outer wall of the reinforcing columns. A polyurethane foam insulation material layer 2 is injected into the cavity. One side of the base plate 1 is provided with a trapezoidal groove 11 and a first C-shaped groove 12, while the other side is provided with a trapezoidal protrusion 101 adapted to the trapezoidal groove 11 and a second C-shaped groove 102 corresponding to the first C-shaped groove 12. A mounting hole 13 is provided at the lower end of the base plate 1 along the short side direction; a support member 3 with reinforcing ribs is provided in the mounting hole 13, and the lower end of the base plate 1 is welded to the upper side of the frame steel beam 4 through the support member 3; an FRP connector 6 is provided through the upper end of the base plate 1; one side of the FRP connector 6 protrudes from the base plate 1 and is welded to the lower end of the frame steel beam 4 through an L-shaped tie member 5; a filling hole 14 is provided in the base plate 1 at the position of the mounting hole 13, and the filling hole 14 communicates with the mounting hole 13. An L-shaped protrusion 15 is provided at the lower end of the base plate 1 below the mounting hole 13; correspondingly, an L-shaped groove 16 adapted to the L-shaped protrusion 15 is provided at the corresponding position on the upper end of the base plate 1; after the two base plates 1 are assembled, the joint of the plates forms a staggered platform with the outer side lower and the inner side higher.

[0020] In this embodiment, the axial position, flatness, verticality, and joint width of the precast wall panel are adjusted by adjusting the gap between the mounting hole 13 and the support member 3 and by adjusting the position of the L-shaped tie member 5, thereby controlling the installation accuracy of the wall panel.

[0021] In this embodiment, the support member 3 is configured as T-shaped or Z-shaped, and a fixed iron piece 31 is vertically welded to its supporting surface.

[0022] In this embodiment, the contact surface between the base plate 1 and the frame steel beam 4 and the corresponding column is provided with a fireproof isolation strip.

[0023] In this embodiment, the FRP connector 6 has a square or round anchor head at one end and a nut at the other end.

[0024] In this embodiment, the anchor head is made of high-strength plastic, FRP, or steel.

[0025] In this embodiment, the anchor head is flush with the surface of the base plate.

[0026] In some embodiments, the base plate 1 is provided with a thermal insulation grout leveling layer, a crack-resistant layer, and a finishing layer on the side away from the frame steel beam 4 in sequence.

[0027] In some embodiments, the quantity and size of the base plate 1 can be adjusted according to actual conditions.

[0028] In some embodiments, the FRP connector 6 can be replaced with a steel connector.

[0029] In some embodiments, the anchor head of the steel connector is made of plastic or other organic materials.

[0030] In some embodiments, when the anchor head of the steel connector is a steel anchor head, an organic insulation board is provided on its outer side and is flush with the surface of the base plate 1.

[0031] In some embodiments, the base plate 1 may be provided with only one set of trapezoidal grooves 11 and trapezoidal grooves 11 on both sides along the long side direction, or a set of first C-shaped grooves 12 and second C-shaped grooves 102.

[0032] In some other embodiments, a construction method for an aerated concrete insulated exterior wall panel system includes the following steps: 1) Laying out and arranging panels: First, design the panel layout based on the design drawings and the actual site conditions; cut and groove wall panels with a width smaller than the standard; determine the quantity and location of aerated concrete composite insulation wall panels and their supporting components and L-shaped tie pieces; 2) According to the layout diagram of the aerated concrete composite insulation strip, the installation control line is marked on the main structure, and the support 3 is installed on the embedded part at the upper end of the frame steel beam 4; L-shaped tie 5 is installed on the lower end of the frame steel beam 4, and the L-shaped tie 5 is welded to the lower flange of the frame steel beam segment. 3) Connection with the main structure: Hoist one of the prefabricated wall panels from step 1) onto the support member 3, so that the fixing iron part 31 of the support member 3 is inserted into the mounting hole 13 at the lower end of the wall panel, and weld the extended part of the support member 3 to the embedded part of the upper floor slab of the frame steel beam 4; fix the L-shaped tie member 5 to the upper part of the other prefabricated wall panel through the FRP connector 6, and fix it to the lower end of the frame steel beam 4. 4) Inserting PE rods: When splicing two precast wall panels, insert PE rods. The diameter of the PE rods should be larger than the diameter of the C-groove. 5) Adjust the axial position and joint width of the aerated concrete composite insulation strip. Adjusting the gap between the mounting hole 13 and the support 3, and adjusting the position of the L-shaped tie member 5, can adjust the axial position and joint width of the precast wall panel and control the installation accuracy of the wall panel. 6) Joint treatment After adjusting the position of the precast wall panels, inject polymer mortar or special grouting grout into the joints between the panels; fill the joints between the upper and lower precast wall panels with structural adhesive. 7) Grouting of mounting holes The bonding mortar is poured into the installation hole 13 through the filling hole 14 using a grouting device; 8) Wall leveling and finishing construction Apply a leveling layer of thermal insulation mortar to the side of the base plate 1 away from the frame steel beam 4. The thickness of the thermal insulation mortar is 10-25mm to level the wall surface. After the thermal insulation mortar leveling layer dries, a 3-5mm thick polymer cement mortar is evenly applied and alkali-resistant fiberglass mesh is pressed in to form a crack-resistant layer. After the crack-resistant layer dries, apply flexible water-resistant putty and elastic coating to form the finishing layer.

[0033] This invention achieves better connection reliability and safety by setting brackets, FRP connectors, and L-shaped tie members to connect with the main structure, while ensuring that the wall panel has high thermal insulation performance and eliminating cold bridging. Furthermore, this invention solves the waterproofing problem better by adopting a three-layer waterproof structure.

[0034] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. An aerated concrete insulated exterior wall panel system, comprising multiple base panels (1), each base panel (1) having a closed cavity inside, and multiple reinforcing columns formed within the cavity, wherein an organic thermal insulation and waterproof layer is formed on the inner wall of the cavity and the outer wall of the reinforcing columns; and a polyurethane foam insulation material layer (2) is injected into the cavity, characterized in that, Each of the base plates (1) has a trapezoidal groove (11) and a first C-shaped groove (12) on one side along the length direction, and a trapezoidal protrusion (101) adapted to the trapezoidal groove (11) and a second C-shaped groove (102) corresponding to the first C-shaped groove (12) on the other side. Each of the base plates (1) has an installation hole (13) inside its lower end; a support member (3) with reinforcing ribs is provided in the installation hole (13), and the lower end of the base plate (1) is welded to the embedded part on the upper side of the external frame steel beam (4) through the support member (3); an FRP connector (6) is provided through the upper end of each base plate (1); one side of the FRP connector (6) protrudes from the base plate (1) and is welded to the lower end of the frame steel beam (4) through an L-shaped tie member (5); Each of the base plates (1) has a filling hole (14) located at the mounting hole (13), and the filling hole (14) is connected to the mounting hole (13); The support member (3) is configured as T-type or Z-type, and a fixed iron piece (31) is vertically welded on its support surface.

2. The aerated concrete insulated exterior wall panel system according to claim 1, characterized in that, Each of the base plates (1) has an L-shaped protrusion (15) located below the mounting hole (13) at its lower end; correspondingly, the upper end of the base plate (1) has an L-shaped groove (16) that matches the L-shaped protrusion (15); after the two base plates (1) are assembled, the joint between the plates forms a staggered platform with the outer side lower than the inner side.

3. The aerated concrete insulated exterior wall panel system according to claim 1, characterized in that, Each of the baseboards (1) and the frame steel beams (4) has a fire-resistant isolation strip between floors at their contact surfaces.

4. The aerated concrete insulated exterior wall panel system according to claim 1, characterized in that, Each of the base plates (1) has a waterproof interface layer on the side away from the frame steel beam (4).

5. The aerated concrete insulated exterior wall panel system according to claim 1, characterized in that, The base plate (1) is provided with a thermal insulation grout leveling layer, a crack-resistant layer and a decorative layer on the side away from the frame steel beam (4) in sequence.

6. A construction method for an aerated concrete insulated exterior wall panel system as described in any one of claims 1-5, characterized in that, Includes the following steps: 1) Laying out and arranging panels: First, design the panel layout based on the design drawings and the actual site conditions; cut and groove wall panels with a width smaller than the standard; determine the quantity and location of aerated concrete composite insulation wall panels and their supporting components and L-shaped tie pieces; 2) According to the layout diagram of the aerated concrete composite insulation strip, the installation control line is marked on the main structure, and the support bracket (3) is installed on the embedded part at the upper end of the frame steel beam (4); the L-shaped tie member (5) is installed on the lower end of the frame steel beam (4), and the L-shaped tie member (5) is welded to the lower flange of the frame steel beam line segment; 3) Connection with the main structure: Hoist one of the prefabricated wall panels prefabricated in step 1) onto the support member (3), so that the fixing iron part (31) of the support member (3) is inserted into the mounting hole (13) at the lower end of the wall panel, and weld the extension part of the support member (3) to the embedded part of the upper floor slab of the frame steel beam (4); fix the L-shaped tie member (5) at the upper part of the other prefabricated wall panel through the FRP connector (6), and fix it to the lower end of the frame steel beam (4); 4) Inserting PE rods: When splicing two precast wall panels, insert PE rods. The diameter of the PE rods should be larger than the diameter of the C-groove. 5) Adjust the axial position and joint width of the aerated concrete composite insulation strip. Adjust the gap between the mounting hole (13) and the support (3) and adjust the position of the L-shaped tie (5) to adjust the axial position and joint width of the precast wall panel and control the installation accuracy of the wall panel; 6) Joint treatment After adjusting the position of the precast wall panels, inject polymer mortar or special grouting grout into the joints between the panels; fill the joints between the upper and lower precast wall panels with structural adhesive. 7) Grouting of mounting holes The bonding mortar is poured into the installation hole (13) through the filling hole (14) using a grouting device; 8) Wall leveling and finishing construction Apply a leveling layer of thermal insulation slurry to the side of the base plate (1) away from the frame steel beam (4). The thickness of the thermal insulation slurry is 10-25mm. Level the wall surface. After the thermal insulation mortar leveling layer dries, a 3-5mm thick polymer cement mortar is evenly applied and alkali-resistant fiberglass mesh is pressed in to form a crack-resistant layer. After the crack-resistant layer dries, apply flexible water-resistant putty and elastic coating to form the finishing layer.

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