Ultralow-energy-consumption building heat preservation integrated assembly type outer wall

Abstract

The invention provides an ultra-low-energy-consumption building heat preservation integrated fabricated outer wall which is suitable for an ultra-low-energy-consumption building outer wall and is a fabricated wall plate for solving the problems of air tightness and thermal bridge breaking of an ultra-low-energy-consumption building. Comprising a window auxiliary frame, a window peripheral concrete structure, an autoclaved sand concrete inner page wall, a heat insulation and heat bridge breaking anchor bolt, a steel wire mesh fixing part and an outer page wall body. The window auxiliary frame is embedded into the inner page wall, and the heat preservation covers the local part of the auxiliary frame; the window periphery concrete structure is a reinforced concrete horizontal beam, a reinforcing steel bar extends out of the reinforced concrete horizontal beam to be connected with a building structure column reinforcing steel bar, and a reinforced concrete vertical constructional column and the horizontal beam intersect to the wall end and are connected with a building structure beam through a sleeve grouting method. The heat-insulating and heat-bridge-breaking anchor bolts and the steel wire mesh are fixed by fixing the window auxiliary frame after laying in the grinding tool, pouring concrete on the periphery and pouring autoclaved sand concrete; the horizontal and vertical structure in the heat preservation integrated assembly type outer wall enhances the integrity of the outer wall, blocks a heat bridge at the window frame part, and meets the heat preservation requirement of the outer wall of an ultra-low energy consumption building.

Description

Technical Field

[0001] The invention relates to the technical field of assembled energy-saving buildings, and in particular is applicable to assembled exterior walls of ultra-low energy consumption buildings. Background Art

[0002] Prefabricated ultra-low energy consumption buildings are also a trend in the high-quality development of the construction industry and can meet the current development needs of green and low-carbon buildings.

[0003] At present, the components in prefabricated buildings have been factory-scaled and are widely used in ordinary energy-saving buildings. For example, the energy-saving rate of public buildings in cold areas is more than 72%, and the average energy-saving rate of residential buildings is more than 75%; while ultra-low energy consumption buildings can achieve an average energy-saving rate of more than 82.5%, which requires more stringent insulation measures to achieve the improvement of their energy-saving rate. The shortcoming of prefabricated buildings is that the application of their own components can meet the implementation of ordinary energy-saving buildings, but has many shortcomings for ultra-low energy consumption buildings.

[0004] For example, in the patent for an ultra-low energy consumption building exterior wall with application number 202211141011.2 and invention name: The thermal insulation effect is poor and there are many thermal bridges. For example, the heat loss at the window does not take into account the details of the thermal bridge. There are many gaps in the filling of the insulation material, which creates many thermal bridges and is not conducive to the implementation of ultra-low energy consumption buildings. It cannot withstand the detection of infrared equipment.

[0005] The combination of prefabricated and ultra-low energy consumption buildings will cause many problems, such as substandard air tightness, increased thermal bridges, condensation in indoor corners, increased operating energy consumption, etc. The present invention combines the exterior wall assembly with the thermal insulation structure of ultra-low energy consumption buildings in an effort to achieve a win-win result for both parties and realize the smooth implementation of green and low-carbon buildings. Summary of the invention

[0006] The purpose of this patent is to solve the shortcomings of combining prefabricated exterior walls with ultra-low energy consumption building exterior walls and propose an integrated insulation prefabricated exterior wall, which is a wall that simultaneously achieves the assembly rate and the thermal insulation requirements of the ultra-low energy consumption building exterior envelope structure.

[0007] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present invention is: an ultra-low energy consumption building insulation integrated assembled exterior wall, including a window frame, a concrete structure around the window, an inner wall, insulation, thermal break anchor bolts and a wire mesh fixing, and an outer wall. The window frame is embedded in the inner wall, and the outer insulation covers part of the frame; the concrete structure around the window is a reinforced concrete horizontal beam and extends steel bars to connect with the steel bars of the building structure column, and the reinforced concrete vertical structural column and the horizontal beam cross to the wall end, and are connected to the building structure beam by the sleeve grouting method; the inner wall is made of high-performance autoclaved sand aerated concrete; the insulation, thermal break anchor bolts and wire mesh fixing are to fix the window frame after laying in the mold, and the surrounding structure concrete is poured, and the autoclaved sand concrete is poured; the outer wall, the lightweight concrete used to meet the requirements of the insulation exterior wall fire protection to reach a certain thickness, and the steel mesh is laid and the alkali-resistant mesh anti-cracking mortar is plastered. The internal horizontal and vertical structures of the thermally-insulated integrated assembled exterior wall enhance the integrity of the exterior wall, improve the thermal insulation performance of doors and windows, and block thermal bridges at window frames and at the fixing points of thermal insulation materials. It can meet the thickness and combustion performance requirements of the thermal insulation of the exterior walls of ultra-low energy consumption buildings, while meeting factory customization, improving construction convenience and shortening construction period. Its lightweight characteristics also reduce the cost of transportation and on-site lifting.

[0008] Based on the above, the auxiliary frame is selected from non-metallic auxiliary frames according to the requirements of thermal bridge breaking and is fixed with special components.

[0009] Based on the above, the concrete structure around the window is reinforced according to the structural calculation and the concrete grade required by the design.

[0010] Based on the above, the autoclaved sand concrete inner wall is filled with high-performance autoclaved sand-added aerated concrete in the formwork.

[0011] Based on the above, the insulation can be made of B1 grade insulation materials such as extruded polystyrene board and molded polystyrene board, and the thickness of the inner and outer walls shall not be less than 5 cm to meet the requirements of fire protection regulations. The thickness of the insulation material shall be calculated and determined based on the average heat transfer coefficient requirements of the external envelope structure of the ultra-low energy consumption building.

[0012] Based on the above, the thermal break anchor bolts should use an anchor plate with a diameter of not less than 6 cm. The number of wall anchor bolts per square meter is calculated according to the building height, and the anchoring depth is not less than 5 cm inside the inner wall.

[0013] Based on the above, the specifications of the wire mesh should be determined according to the bulk density and thickness of lightweight concrete.

[0014] Based on the above, the anti-cracking mortar mesh cloth is the outer layer of lightweight concrete, located in the outermost protective layer, and the mesh cloth and the anti-cracking mortar provide double protection to ensure that the wall does not crack.

[0015] Based on the above, the outer wall is composed of lightweight concrete with steel wire mesh and anti-cracking mortar with mesh cloth. The window insulation sealing is evenly coated with anti-cracking mortar mesh cloth, and the gap between the attached frame and the mortar is sealed with sealant.

[0016] Based on the above, the grouting sleeve component is used to connect the wall and the reserved steel bars, and the construction is simple, safe and reliable, and it is a common method for connecting prefabricated components.

[0017] The present invention is applicable to residential buildings and is used in conjunction with cast-in-place and prefabricated shear wall structures. It is also applicable to the outer protective walls of public buildings such as frame structures and steel structures. This invention is used for non-structural wall parts and is used in conjunction with cast-in-place concrete structures and thermal insulation outer leaf wall panels. The assembled wall panels and structural area construction can be carried out simultaneously. The gaps are filled with polyurethane foam and leveled and cleaned to ensure that the base is clean and easy to construct thermal insulation and outer leaf panels.

[0018] In short, this invention avoids the thermal bridges that are easy to be generated on the exterior walls of assembled ultra-low energy consumption buildings to the greatest extent, such as window treatment, thermal insulation pre-bonding and blocking, connection treatment, etc. It makes the assembled exterior walls consistent with the requirements of ultra-low energy consumption buildings, and jointly meets the standardized design and construction of green and low-carbon buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is the inner wall diagram of the present invention;

[0021] Figure 3 It is a schematic diagram of the overall cross section.

[0022] In the figure, 1 is the window frame, 2 is the concrete structure around the window, 3 is the insulation board, 4 is the outer wall, 5 is the lightweight concrete with wire mesh, 6 is the thermal break anchor bolt, 7 is the anti-cracking mortar mesh cloth, 8 is the autoclaved sand concrete inner wall, 9 is the fixed steel bar, 10 is the polyurethane insulation plugging, 11 is the cement mortar, and 12 is the sleeve grouting component. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings.

[0024] like Figure 1-3 The outer wall 4, the autoclaved sand concrete inner wall 8 and the insulation board 3 are the ultra-low energy consumption building insulation as the main assembled outer wall panels, which are fixed with thermal break anchor bolts 6. The thermal break anchor bolts 6 are located in the lightweight concrete with steel mesh 5 and the autoclaved sand concrete inner wall 8, and penetrate the insulation board 3. The three combinations of outer wall 4, insulation board 3 and autoclaved sand concrete inner wall 8 are constructed and cast in sequence from the inside to the outside as a whole.

[0025] In this embodiment, the thermal bridge anchor bolt 6 is located in the lightweight concrete with steel wire mesh 5, the pre-set anchor disc is located outside the steel wire mesh, and its screw penetrates the insulation board 3 and is inserted into the autoclaved sand concrete inner wall 8; it can increase the function of fixing the insulation board to the inner wall; the configuration of the steel wire mesh can increase the stability of the outer wall and reduce the risk of cracking. The auxiliary frame 1 is embedded in the concrete structure 2 around the window and cast as a whole at one time. The auxiliary frame 1 is located inside the insulation 3 and is sealed with cement mortar 7.

[0026] In this embodiment, Figures 2-3 The concrete structure 2 around the window is located between the autoclaved sand concrete inner page wall 8 and the window frame 1; the surrounding concrete structure 2 and the autoclaved sand concrete inner page wall 8 are cast as an inner page wall. The surrounding concrete structure 2 is a reinforced concrete horizontally extending steel bar connected to the main body of the building cast-in-place structural column, and the reinforced concrete vertical structural column crosses the horizontal beam to the wall end, and the sleeve grouting equipment 12 is used to connect the building structure beam.

[0027] In this embodiment, Figure 3 The polyurethane insulation plug 10 is located at the end of the insulation 3, that is, at the end between the inner page wall 8 and the outer page wall 4 of the autoclaved sand concrete, and is cast integrally with the inner and outer page walls at one time.

[0028] The above describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only the basic principles of the present invention. There will be various changes and improvements without changing the gist of the present invention, and the improved contents will be included in the scope of the present invention.

Claims

1. An ultra-low energy consumption building thermal insulation integrated assembled exterior wall, comprising a window frame (1), a concrete structure around the window (2), thermal insulation (3), an outer wall (4), a lightweight concrete with a steel wire mesh (5), a thermal break anchor bolt (6), a crack-resistant mortar mesh cloth (7), an autoclaved sand concrete inner wall (8), fixed steel bars (9), a polyurethane thermal insulation plug (10), cement mortar (11), and a sleeve grouting component (12), which are cast in one piece.

2. The ultra-low energy consumption building thermal insulation integrated assembled exterior wall according to claim 1, characterized in that: The outer wall (4) comprises lightweight concrete with steel wire mesh (5), thermal break anchor bolts (6), and anti-cracking mortar mesh cloth (7); the autoclaved sand concrete inner wall (8) comprises a window frame (1), a concrete structure around the window (2), fixed steel bars (9), and cement mortar (11), which are cast in one piece.

3. The ultra-low energy consumption building thermal insulation integrated assembled exterior wall according to claim 1, characterized in that: The outer wall (4) and the autoclaved sand concrete inner wall (8), wherein the thermal insulation (3) is ultra-low energy consumption building thermal insulation located between the outer wall (4) and the autoclaved sand concrete inner wall (8), and fixed by the thermal break anchor bolt (6); the thermal break anchor bolt (6) is located between the lightweight concrete with steel wire mesh (5) and the autoclaved sand concrete inner wall (8), and penetrates the thermal insulation (3).

4. The ultra-low energy consumption building thermal insulation integrated assembled exterior wall according to claim 1, characterized in that: The thermal break anchor bolt (6) is located in the lightweight concrete with steel wire mesh (5), and its anchoring disc is located outside the steel wire mesh. The screw penetrates the thermal insulation (3) and is inserted into the autoclaved sand concrete inner wall (8); the auxiliary frame (1) is embedded in the concrete structure (2) around the window and cast as a whole at one time. The auxiliary frame (1) is located inside the thermal insulation (3) and is sealed with cement mortar (7).

5. The ultra-low energy consumption building thermal insulation integrated assembled exterior wall according to claim 1, characterized in that: The concrete structure (2) around the window is located between the autoclaved sand concrete inner page wall (8) and the window frame (1); the concrete structure (2) around the window and the autoclaved sand concrete inner page wall (8) are cast as a whole to form an inner page wall; the concrete structure around the window is a reinforced concrete horizontally extending steel bar connected to the main body of the building cast-in-place structural column; the reinforced concrete vertical structural column crosses the horizontal beam to the wall end, and is connected to the building structure beam using the sleeve grouting equipment (12).

6. The ultra-low energy consumption building thermal insulation integrated assembled exterior wall according to claim 1, characterized in that: The polyurethane thermal insulation plug (10) is located at the end of the thermal insulation (3), that is, at the end between the autoclaved sand concrete inner page wall (8) and the outer page wall (4), and is cast integrally with the inner and outer page walls at one time.

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