A kind of autoclaved lightweight aerated concrete board exterior wall structure

Abstract

This invention relates to an autoclaved aerated concrete (AAC) panel exterior wall structure, comprising a windowless wall, a windowed wall, and corner column joints. The outer side of the main beam wall is secured with autoclaved aerated concrete panels using expanded-base mechanical anchors. An asbestos insulation layer is fixed to the upper end of the autoclaved aerated concrete panels. The windowless wall is represented by autoclaved aerated concrete panel A, whose upper and lower ends are fixedly connected to the main beam wall. A window is fixed between the upper and lower main beam walls. At the corner column joints, two outer right-angled surfaces of the right-angled columns are secured with autoclaved aerated concrete panels B using expanded-base mechanical anchors. This invention uses autoclaved aerated concrete panels as the main exterior wall, fixed integrally with reinforced concrete beams, columns, and thin-walled walls. It fully utilizes the unique advantages of aerated concrete panels, such as lightweight, fire resistance, sound insulation, and environmental friendliness. Furthermore, the prefabricated construction results in an aesthetically pleasing finished product with fewer joints and high strength.

Description

Technical Field

[0001] The invention relates to the field of door, window and wall construction, and in particular to an autoclaved lightweight aerated concrete board exterior wall structure. Background Art

[0002] The construction methods, construction technologies, building materials and construction organization of green buildings and prefabricated buildings in the new era are gradually maturing. Through scientific management and technical optimization, energy conservation and construction activities with negative impacts on the environment can be reduced, achieving four savings and one environmental protection. At present, most of the enclosure walls of housing buildings or municipal infrastructure are built with bricks, including sintered ordinary bricks, fly ash bricks, sintered porous bricks, sintered hollow bricks, etc. The specifications and sizes of the blocks are limited, the blocks are heavy, easy to shrink and deform, break, have poor thermal insulation performance, and are inconvenient to cut. There are common cracks, holes and high thermal conductivity, and low construction efficiency.

[0003] The existing project has a 800mm high and 100mm thick thin-walled reinforced concrete wall on the outer edge of the frame beam around each floor slab. Because the thin-walled wall has a smaller load-bearing surface, the self-weight and construction method of the filling wall are the key considerations, and a wall structure with light self-weight and easy operation is required.

[0004] The new material autoclaved aerated concrete board (ALC board) has many advantages such as light weight and high strength, increased use area, fast construction speed and short construction period, strong hanging force, direct grooving and burying pipelines, easy decoration, good fire prevention, sound insulation, heat insulation, thermal insulation, moisture resistance, environmental protection, economy, earthquake resistance, anti-penetration, anti-aging, etc. It can be widely used in concrete and steel structure houses, office buildings, schools, municipal infrastructure and other enclosure structures. Therefore, it is considered to use autoclaved aerated concrete board as the main exterior wall structure.

[0005] However, in view of the special frame beams and thin-walled wall structures of the existing project, it is necessary to further design the connection between the autoclaved aerated concrete panels and the beams, columns and walls to ensure stable installation, reliable quality and beautiful appearance. Summary of the invention

[0006] The purpose of the present invention is to provide an autoclaved lightweight aerated concrete board exterior wall structure, which is used to complete the exterior wall construction design reserved for existing projects. The autoclaved lightweight aerated concrete board is used as the main exterior wall and is fixed into a whole with reinforced concrete beams, columns and thin-walled wall structures. At the same time, a door and window structure is reserved, and the advantages of the aerated concrete board such as light weight, fire resistance, sound insulation and environmental protection are fully utilized. In addition, the assembled construction is adopted, the finished product is beautiful, has few joints, high strength, and is not prone to cracks and breakage.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] A autoclaved lightweight aerated concrete panel exterior wall structure, comprising a wall without a window surface, a wall with a window surface, and a corner column node. The upper and lower parts of the window are main beam walls. The outer side of the main beam wall is fixed with an autoclaved lightweight aerated concrete panel by a bottom-expanded mechanical anchor bolt. An asbestos insulation layer is fixed to the upper end of the autoclaved lightweight aerated concrete panel. The wall without a window surface is an autoclaved lightweight aerated concrete panel A. The upper and lower ends of the autoclaved lightweight aerated concrete panel A are fixedly connected to the main beam wall. At the wall with a window surface, a window is fixed between the upper and lower main beam walls. The corner column node is a right-angled wall formed by right-angle columns. The two outer right-angle surfaces of the right-angle columns are fixed with an autoclaved lightweight aerated concrete panel B by a bottom-expanded mechanical anchor bolt. The autoclaved lightweight aerated concrete panel B is connected to the window or is integrally connected to the autoclaved lightweight aerated concrete panel A.

[0009] The main beam wall body comprises a main beam and a thin-walled wall, and the thin-walled wall is integrally connected to the upper end of the main beam.

[0010] The upper end of the autoclaved lightweight aerated concrete slab A is fixedly connected to the main beam through an angle steel, a hook bolt and a bottom-enlarged mechanical anchor bolt, one side of the angle steel is fixedly connected to the main beam through a bottom-enlarged mechanical anchor bolt, the other side of the angle steel is buckled on the inner side of the wall of the autoclaved lightweight aerated concrete slab A, the hook bolt is inserted into the autoclaved lightweight aerated concrete slab A, and the hook head of the hook bolt hooks the other side of the angle steel and is welded and fixed;

[0011] The lower end of the autoclaved lightweight aerated concrete board A is fixedly connected to the thin-walled wall by an angle steel, a hook bolt and a bottom-enlarged mechanical anchor bolt. One side of the angle steel is between the butt end faces of the autoclaved lightweight aerated concrete board A and the thin-walled wall, and is fixedly connected to the thin-walled wall by a bottom-enlarged mechanical anchor bolt. The other side of the angle steel is buckled on the inner side of the wall of the autoclaved lightweight aerated concrete board A. The hook bolt is inserted into the autoclaved lightweight aerated concrete board A, and the hook head of the hook bolt hooks the other side of the angle steel and is welded and fixed.

[0012] The thin-walled wall has two levels of thickness, with an upper thickness of 200 mm and a lower thickness of 100 mm.

[0013] The thickness of the autoclaved lightweight aerated concrete board A is 300 mm.

[0014] The autoclaved lightweight aerated concrete panels on the outside of the main beam wall are of two types: autoclaved lightweight aerated concrete panel C and autoclaved lightweight aerated concrete panel D. The thickness of the autoclaved lightweight aerated concrete panel C is 100 mm, and the thickness of the autoclaved lightweight aerated concrete panel D is 200 mm. The autoclaved lightweight aerated concrete panel C is located at the upper and lower ends of the window, and the autoclaved lightweight aerated concrete panel C is located at the upper and lower ends of the autoclaved lightweight aerated concrete panel A.

[0015] The thickness of the autoclaved lightweight aerated concrete board B is 200 mm.

[0016] The two autoclaved lightweight aerated concrete panels B at the corner column node are butted at an angle, and embedded parts are arranged at the intersection for external shape connection.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1) The present invention combines the frame beam thin-wall wall and corner column structure reserved in the existing project, uses ALC board as the external wall structure of the enclosure body, and sets doors, windows and insulation structure at the same time, which can give full play to the advantages of ALC board of light weight, high strength, good ductility and strong earthquake resistance, and has good insulation and sound insulation performance. ALC board is thinner than ordinary wall, under the same building area, it can reduce the floor space of the structure, increase the usable area, and reduce the burden on the foundation.

[0019] 2) The present invention is energy-saving and environmentally friendly, with high installation precision. Prefabricated construction reduces the labor intensity of the base layer, increases installation speed, improves construction efficiency, shortens construction period, and is economical in cost.

[0020] 3) It has good thermal insulation performance and can avoid the common wall cracking problem in the traditional extruded polystyrene board external mortar insulation method.

[0021] 4) The present invention has beautiful external appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the elevation arrangement of the present invention;

[0023] Figure 2 It is a schematic diagram of the connection structure of the wall without window surface;

[0024] Figure 3 This is a schematic diagram of the connection structure of a wall with a window surface;

[0025] Figure 4 It is a schematic diagram of the connection structure at the corner column node.

[0026] In the figure: 1. Asbestos insulation layer, 2. Autoclaved lightweight aerated concrete board D, 3. Autoclaved lightweight aerated concrete board B, 4. Autoclaved lightweight aerated concrete board C, 5. Autoclaved lightweight aerated concrete board A, 6. Window, 7. Expanded bottom mechanical anchor bolts, 8. Hook bolts, 9. Angle steel, 10. Thin-walled wall, 11. Main beam, 12. Aluminum profile shape, 13. Embedded parts, 14. Right-angle column. DETAILED DESCRIPTION

[0027] The present invention is described in detail below, but the implementation scope of the present invention is not limited to the following embodiments.

[0028] like Figure 1-Figure 4As shown, an autoclaved lightweight aerated concrete board exterior wall structure includes a wall without window surface, a wall with window surface, and a corner column node. The upper and lower parts of the window are main beam walls. The outer side of the main beam wall is fixed with an autoclaved lightweight aerated concrete board by a bottom-expanded mechanical anchor bolt 7. An asbestos insulation layer 1 is fixed to the upper end of the autoclaved lightweight aerated concrete board. The wall without window surface is an autoclaved lightweight aerated concrete board A5. The upper and lower ends of the autoclaved lightweight aerated concrete board A5 are fixedly connected to the main beam wall. At the wall with window surface, a window 6 is fixed between the upper and lower main beam walls. The corner column node is a right-angled wall formed by a right-angle column 14. The two outer right-angle surfaces of the right-angle column are fixed with an autoclaved lightweight aerated concrete board B3 by a bottom-expanded mechanical anchor bolt 7. The autoclaved lightweight aerated concrete board B3 is connected to the window 6 or is integrally connected to the autoclaved lightweight aerated concrete board A5.

[0029] The present invention is designed for the existing engineering reserved structure, which is composed of upper and lower frame main beams 11, thin-walled low walls integrally connected at the upper end of the main beams 11, and corner columns. The present invention uses autoclaved lightweight aerated concrete panels as the main body of the exterior wall, connects the upper and lower frame main beam walls, and reserves windows for installing doors and windows.

[0030] The main beam wall includes a main beam 11 and a thin-walled wall 10 , and the thin-walled wall 10 is integrally connected to the upper end of the main beam 11 .

[0031] The upper end of the autoclaved lightweight aerated concrete slab A5 is fixedly connected to the main beam 11 through an angle steel 9, a hook bolt 8 and a bottom-enlarged mechanical anchor bolt 7. One side of the angle steel 9 is fixedly connected to the main beam 11 through the bottom-enlarged mechanical anchor bolt 7. The other side of the angle steel 9 is buckled on the inner side of the wall of the autoclaved lightweight aerated concrete slab A5. The hook bolt 8 is inserted into the autoclaved lightweight aerated concrete slab A5. The hook head of the hook bolt 8 hooks the other side of the angle steel 9 and is welded and fixed.

[0032] The lower end of the autoclaved lightweight aerated concrete board A5 is fixedly connected to the thin-walled wall 10 by an angle steel 9, a hook bolt 8 and a bottom-enlarged mechanical anchor bolt 7. One side of the angle steel 9 is between the butt end faces of the autoclaved lightweight aerated concrete board A5 and the thin-walled wall 10, and is fixedly connected to the thin-walled wall 10 by the bottom-enlarged mechanical anchor bolt 7. The other side of the angle steel 9 is buckled on the inner side of the wall of the autoclaved lightweight aerated concrete board A5. The hook bolt 8 is inserted into the autoclaved lightweight aerated concrete board A5, and the hook head of the hook bolt 8 hooks the other side of the angle steel 9 and is welded and fixed.

[0033] The thin-walled wall 10 has two levels of thickness, with an upper thickness of 200 mm and a lower thickness of 100 mm.

[0034] The thickness of the A5 autoclaved lightweight aerated concrete slab used as the main wall structure is 300 mm.

[0035] The present invention fixes autoclaved lightweight aerated concrete slabs of different thicknesses at different positions outside the main beam wall. The autoclaved lightweight aerated concrete slabs on the outside of the main beam wall are of two types: autoclaved lightweight aerated concrete slab C4 and autoclaved lightweight aerated concrete slab D2. The thickness of the autoclaved lightweight aerated concrete slab C4 is 100 mm, and the thickness of the autoclaved lightweight aerated concrete slab D2 is 200 mm. The autoclaved lightweight aerated concrete slab C4 is located at the upper and lower ends of the window, and the autoclaved lightweight aerated concrete slab C4 is located at the upper and lower ends of the autoclaved lightweight aerated concrete slab A5.

[0036] The specific installation structure is as follows: In the windowless position, a 200mm thick ALC strip board (autoclaved lightweight aerated concrete board D2) is selected, holes are opened at the upper and lower fixed positions of the ALC strip board, and the M12 bottom-enlarged mechanical anchor bolts 7 are used to anchor the thin-walled wall 10 and the main beam 11 respectively; a 300mm thick ALC strip board (i.e. autoclaved lightweight aerated concrete board A5) is selected between the upper end of the thin-walled wall 10 and the upper main beam 11, and the autoclaved lightweight aerated concrete board A5 is used inside the wall. Full-length galvanized angle steels 9 are respectively arranged at the joints between the bottom of the upper main beam 11 and the top of the next thin-walled wall 10. The full-length galvanized angle steels 9 are anchored to the main beam 11 and the thin-walled wall 10 at intervals of 600 mm by expanded-bottom mechanical anchor bolts 7. A hole is respectively opened at the upper and lower fixed positions of the ALC strips, and are welded to the full-length galvanized angle steels 9 by M12 hook bolts 8. The gap at the upper end of the thin-walled wall 10 is filled with rock wool for insulation treatment, so that it can be made into a lightweight shape.

[0037] In the window position, 100mm thick ALC strips (i.e., autoclaved lightweight aerated concrete board C4) are used above and below the window. A hole is opened at the upper and lower fixed positions of the ALC strips respectively, and they are anchored to the thin-walled wall 10 and the main beam 11 respectively with M12 bottom-enlarged mechanical anchor bolts 7; the gap at the upper end of the thin-walled wall 10 is filled with rock wool for insulation treatment, so that a lightweight shape can be made.

[0038] Asbestos insulation layer on the outside, the channel steel is fixed on the embedded parts of the thin-wall wall, the rock wool insulation is embedded in the channel steel, and the decorative metal strips are fixed on the channel steel.

[0039] The thickness of the autoclaved lightweight aerated concrete slab B3 at the corner column node is 200 mm. The two autoclaved lightweight aerated concrete slabs B3 are butted at an angle, and an embedded part 13 is provided at the intersection for external molding connection.

[0040] At the four corners of the building, 200mm thick ALC strips (i.e., autoclaved lightweight aerated concrete panels B3) are selected. Two holes are opened at the upper and lower fixed positions of the ALC strips, and the M12 bottom-enlarged mechanical anchor bolts 7 are used to anchor the columns. The intersection is a right-angle concave shape, and embedded parts 13 are set for the fixed connection of the outer aluminum profile shape 12. The gaps between the column, the wall, and the window are filled with rock wool insulation layer.

[0041] The hook bolt holes and the expanded bottom mechanical bolt holes are sealed with special glue. At the junction of different walls, a steel wire mesh is laid on the back, and the width of the joint perimeter is not less than 300mm. Alkali-resistant glass fiber mesh cloth is pressed into the polymer cement mortar layer, that is, a high-strength plaster layer crack prevention measure is adopted.

[0042] The inner side of the wall is coated with 30mm thick RQW lightweight composite insulation material, the outer side of the wall is leveled with 10mm thick cement mortar, and then a 3~8mm thick polymer cement waterproof mortar waterproof layer is applied, and the outermost layer is a real paint layer.

Claims

1. An autoclaved lightweight aerated concrete board exterior wall structure, characterized in that: It includes a wall without a window surface, a wall with a window surface, and a corner column node. The upper and lower parts of the window are main beam walls. The outer side of the main beam wall is fixed with an autoclaved lightweight aerated concrete board through a bottom-expanding mechanical anchor bolt. The upper end of the autoclaved lightweight aerated concrete board is fixed with an asbestos insulation layer. The wall without a window surface is an autoclaved lightweight aerated concrete board A. The upper and lower ends of the autoclaved lightweight aerated concrete board A are fixedly connected to the main beam wall. At the wall with a window surface, a window is fixed between the upper and lower main beam walls. The corner column node is a right-angled wall formed by a right-angle column. The two outer right-angle surfaces of the right-angle column are fixed with an autoclaved lightweight aerated concrete board B through a bottom-expanding mechanical anchor bolt. The autoclaved lightweight aerated concrete board B is connected to the window or integrally connected to the autoclaved lightweight aerated concrete board A. The main beam wall body comprises a main beam and a thin-walled wall, and the thin-walled wall is integrally connected to the upper end of the main beam; The thin wall has two levels of thickness, the upper part is 200mm thick and the lower part is 100mm thick; The thickness of the autoclaved lightweight aerated concrete board A is 300 mm; The autoclaved lightweight aerated concrete panels on the outside of the main beam wall are autoclaved lightweight aerated concrete panels C and autoclaved lightweight aerated concrete panels D. The thickness of the autoclaved lightweight aerated concrete panels C is 100 mm, and the thickness of the autoclaved lightweight aerated concrete panels D is 200 mm. The autoclaved lightweight aerated concrete panels C are located at the upper and lower ends of the window body, and the autoclaved lightweight aerated concrete panels C are located at the upper and lower ends of the autoclaved lightweight aerated concrete panels A. The thickness of the autoclaved lightweight aerated concrete board B is 200 mm; The two autoclaved lightweight aerated concrete panels B at the corner column node are butted at an angle, and embedded parts are provided at the intersection for external shape connection; Fill the gaps between columns, walls and windows with rock wool insulation; The hook bolt holes and the expanded bottom mechanical bolt holes are sealed with special putty; at the junction of different walls, a steel wire mesh is laid on the back, and the width of the joint is not less than 300mm; alkali-resistant glass fiber mesh cloth is used to press into the polymer cement mortar layer.

2. The autoclaved lightweight aerated concrete board exterior wall structure according to claim 1, characterized in that: The upper end of the autoclaved lightweight aerated concrete slab A is fixedly connected to the main beam through an angle steel, a hook bolt and a bottom-enlarged mechanical anchor bolt, one side of the angle steel is fixedly connected to the main beam through a bottom-enlarged mechanical anchor bolt, the other side of the angle steel is buckled on the inner side of the wall of the autoclaved lightweight aerated concrete slab A, the hook bolt is inserted into the autoclaved lightweight aerated concrete slab A, and the hook head of the hook bolt hooks the other side of the angle steel and is welded and fixed; The lower end of the autoclaved lightweight aerated concrete board A is fixedly connected to the thin-walled wall by an angle steel, a hook bolt and a bottom-enlarged mechanical anchor bolt. One side of the angle steel is between the butt end faces of the autoclaved lightweight aerated concrete board A and the thin-walled wall, and is fixedly connected to the thin-walled wall by a bottom-enlarged mechanical anchor bolt. The other side of the angle steel is buckled on the inner side of the wall of the autoclaved lightweight aerated concrete board A. The hook bolt is inserted into the autoclaved lightweight aerated concrete board A, and the hook head of the hook bolt hooks the other side of the angle steel and is welded and fixed.

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