Prefabricated ALC external wall mounting structure and construction method thereof

Abstract

The prefabricated ALC outer partition wall mounting structure and construction method thereof belong to the technical field of outer wall mounting, and the prefabricated ALC outer partition wall mounting structure is characterized in that: first, an anti-overturning component is mounted between the original concrete structures on both sides of the outer wall hole, and a prefabricated ALC outer partition wall plate is placed at the position of the outer wall hole indoors; then, the prefabricated ALC outer partition wall plate is tilted to the outside, so that the prefabricated ALC outer partition wall plate leans on the anti-overturning component, and the pre-installation of the prefabricated ALC outer partition wall plate is completed; then, an angle steel is mounted on the inner side of the original concrete structure at the top of the outer wall hole indoors; then, the prefabricated ALC outer partition wall plate is righted; finally, a hook bolt is mounted indoors. The prefabricated ALC outer partition wall plate can be installed indoors, a large number of hoisting operations are avoided, the personal safety of construction personnel is ensured, and the construction efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of exterior wall installation technology, specifically a prefabricated ALC exterior partition wall installation structure and its construction method. Background Technology

[0002] With the rapid development of China's construction industry, prefabricated buildings are being used more and more widely, including prefabricated ALC partition walls. High-rise buildings often require prefabricated ALC exterior partition walls to withstand wind pressure. In most cases, angle steel is installed on the inside of the prefabricated ALC partition wall, and hook bolts are used to connect the angle steel to the wall. Specifically, the angle steel is first installed inside the structure at the top of the opening, then the ALC panels are installed outside, and finally the hook bolts are installed inside. However, installing ALC panels indoors presents challenges, such as difficulty in installing the angle steel after the ALC panels are installed, or difficulty in positioning the ALC panels after the angle steel is installed. Therefore, this method is only suitable for outdoor installation of ALC panels in single-story buildings. Using it in high-rise buildings would significantly increase lifting and hoisting operations, posing a greater installation risk. Summary of the Invention

[0003] The purpose of this invention is to provide a prefabricated ALC external partition wall installation structure and its construction method to solve the above-mentioned technical problems.

[0004] Therefore, the present invention provides a construction method for a prefabricated ALC external partition wall installation structure, comprising the following steps: S1. Detailed layout of precast ALC exterior partition wall panels and inspection of exterior wall openings; S2. Connect the anti-overturning components between the original concrete structures on both sides of the opening in the exterior wall; S3. Place the prefabricated ALC external partition wall panel at the opening of the external wall, tilt the prefabricated ALC external partition wall panel outward so that the prefabricated ALC external partition wall panel rests on the anti-overturning component, and complete the prefabricated ALC external partition wall panel pre-installation. S4. Install the angle steel inside the original concrete structure at the top of the external wall opening according to the design requirements; S5. Straighten the prefabricated ALC external partition wall panel, ensuring that the vertical plate of the angle steel hooks onto the top inner side of the prefabricated ALC external partition wall panel. S6. Pass the shank of the hook bolt through the prefabricated ALC outer partition wall panel, and hook the hook of the hook bolt onto the vertical plate of the angle steel; S7. Treat the joints between adjacent precast ALC exterior partition panels, as well as the joints between the precast ALC exterior partition panels and the original concrete structure.

[0005] Preferably, the anti-overturning component includes two through-wall bolts and a connecting rod connected between the outer sides of the two through-wall bolts.

[0006] Preferably, prior to S4, a first notch is cut on the top inner side of the prefabricated ALC exterior partition wall panel, the first notch being adapted to the vertical plate of the angle steel.

[0007] Preferably, before S6, a through hole is opened between the inner and outer sides of the prefabricated ALC outer partition wall panel below the first notch, and a second notch is opened at the prefabricated ALC outer partition wall panel outside the through hole, the through hole allowing the shank of the hook bolt to pass through; in S6, after the shank of the hook bolt passes through the prefabricated ALC outer partition wall panel, the second notch is filled with adhesive mortar.

[0008] Preferably, in step S5, after the precast ALC exterior partition wall is straightened, adhesive mortar is spread in the gap between the precast ALC exterior partition wall and the original concrete structure.

[0009] Preferably, in S7, a mesh cloth is laid at the joint between adjacent precast ALC exterior partition panels and at the joint between the precast ALC exterior partition panel and the original concrete structure, and adhesive mortar is spread on the side of the mesh cloth away from the precast ALC exterior partition panel.

[0010] Preferably, a waterproof layer is also provided on the side of the mesh fabric away from the prefabricated ALC exterior partition wall panel.

[0011] In addition, the present invention provides a prefabricated ALC external partition wall installation structure, including a prefabricated ALC external partition wall panel. This prefabricated ALC external partition wall installation structure is obtained by the construction method described above for the prefabricated ALC external partition wall installation structure. The prefabricated ALC external partition wall installation structure further includes: Anti-overturning components are connected between the original concrete structures on both sides of the structural opening; Angle steel is installed on the top inner side of the prefabricated ALC exterior partition wall panel, and the vertical plate of the angle steel hooks onto the top inner side of the prefabricated ALC exterior partition wall panel. The shank of the hook bolt passes through the prefabricated ALC outer partition wall panel, and the hook of the hook bolt hooks onto the vertical plate of the angle steel.

[0012] Preferably, the top inner side of the precast ALC exterior partition wall panel is cut with a first notch, the vertical plate of the angle steel is adapted to the first notch, and the horizontal plate of the angle steel is set between the original concrete structure at the top of the precast ALC exterior partition wall panel and the precast ALC exterior partition wall panel.

[0013] Preferably, a through hole is provided between the inner and outer sides of the prefabricated ALC outer partition wall panel below the first notch, and a second notch is provided at the prefabricated ALC outer partition wall panel outside the through hole. The shank of the hook bolt passes through the through hole, and the end of the shank remains in the second notch and is connected to the nut.

[0014] Compared with existing technologies, the features and beneficial effects of this invention are as follows: First, anti-overturning components are installed between the original concrete structures on both sides of the exterior wall opening. Then, prefabricated ALC exterior partition panels are placed indoors at the exterior wall opening location, tilted outwards so that they rest against the anti-overturning components, completing the pre-installation of the prefabricated ALC exterior partition panels. Next, angle steel is installed indoors on the inner side of the original concrete structure at the top of the exterior wall opening. Then, the prefabricated ALC exterior partition panels are straightened, and finally, hook bolts are installed indoors. This invention enables indoor installation of prefabricated ALC exterior partition panels, eliminating extensive hoisting operations, ensuring the personal safety of construction personnel, and improving construction efficiency. Attached Figure Description

[0015] Figure 1 A schematic diagram of the installation of the anti-tipping components; Figure 2 for Figure 1 A schematic diagram of the aa section; Figure 3 Installation details for prefabricated ALC exterior partition wall panels; Figure 4 A schematic diagram of the top of the prefabricated ALC exterior partition wall panel; Figure 5 This is a schematic diagram showing the treatment of gaps between adjacent prefabricated ALC exterior partition panels; Figure 6 for Figure 5 Enlarged schematic diagram of part b in the middle.

[0016] Attached diagram labels: 1-Precast ALC exterior partition wall panel, 2-Anti-overturning component, 21-Through-wall bolt, 22-Connecting rod, 3-First notch, 4-Second notch, 5-Hook bolt, 51-Bar part, 52-Hook part, 6-Angle steel, 7-Expansion bolt, 8-Original concrete structure, 9-Adhesive mortar, 10-Mesh cloth, 11-Waterproof layer, 12-Through hole, 13-Nut. Detailed Implementation

[0017] To make the technical means, innovative features, objectives and effects of this invention easier to understand, the invention will be further described below.

[0018] The embodiments described herein are specific implementations of the present invention, used to illustrate the concept of the invention, and are illustrative and exemplary, and should not be construed as limiting the implementation or scope of the invention. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.

[0019] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] To achieve indoor installation of prefabricated ALC exterior partition wall panels 1, eliminating extensive hoisting work, ensuring the safety of construction personnel, and improving construction efficiency, this invention proposes a construction method for installing prefabricated ALC exterior partition wall structures. This method includes the following steps: S1. Based on the width and height of the structural openings, conduct detailed design of the ALC panel layout, determining the quantity of prefabricated ALC exterior partition wall panels 1 for each exterior wall opening location, as well as the width and height of each prefabricated ALC exterior partition wall panel 1, thus completing the detailed layout of the prefabricated ALC exterior partition wall panels 1. Verify the opening dimensions and locations against the design drawings, completing the exterior wall opening inspection. Thoroughly clean the structural surface where the prefabricated ALC exterior partition wall panels 1 will be installed, ensuring that the surfaces in contact with the prefabricated ALC exterior partition wall panels 1 are flat and compact, completing the base layer cleaning.

[0022] S2. Connect the anti-overturning component 2 between the original concrete structures 8 on both sides of the opening in the exterior wall. It should be noted that the specific form of the anti-overturning component 2 is not specifically limited, as long as it can provide an inclined support point for the precast ALC exterior partition wall panel 1. For example, consider a certain anti-overturning component 2... Figure 1 and Figure 2 As shown, the anti-overturning component 2 includes two through-wall bolts 21 and a connecting rod 22 connecting the two through-wall bolts 21 on their outer sides. In common frame structures, the two sides of the external wall opening are shear walls, and the shear walls are designed with pre-reserved openings. In this invention, the through-wall bolts 21 of the anti-overturning component 2 are installed in the shear walls, and the connecting rod 22 is used to provide inclined support points for the prefabricated ALC external partition wall panel 1.

[0023] S3. The staff stands indoors and places the prefabricated ALC external partition wall panel 1 at the opening of the external wall. The prefabricated ALC external partition wall panel 1 is tilted outward so that it rests against the anti-overturning component 2, thus completing the pre-installation of the prefabricated ALC external partition wall panel 1.

[0024] S4. Workers stand indoors and install angle steel 6 inside the original concrete structure 8 at the top of the exterior wall opening, according to design requirements. Specifically, as follows... Figure 3 As shown, the angle steel 6 is connected to the inside of the original concrete structure 8 at the top of the external wall opening using expansion bolts 7, with the vertical plate of the angle steel 6 facing downwards. Before step S4, a first notch 3 is cut on the top inner side of the precast ALC external partition wall panel 1. The first notch 3 is adapted to the vertical plate of the angle steel 6, specifically as shown... Figure 4 As shown. By creating the first notch 3, it can be ensured that after the hook bolt 5 is installed, the hook part 52 of the hook bolt 5 is flush with the inner side of the prefabricated ALC exterior partition wall panel 1, which is beneficial for subsequent interior decoration.

[0025] S5. The worker stands indoors and straightens the precast ALC exterior partition wall panel 1, ensuring that the vertical plate of the angle steel 6 hooks onto the top inner side of the precast ALC exterior partition wall panel 1. Adhesive mortar 9 is then spread on the bottom, top, and sides of the precast ALC exterior partition wall panel 1.

[0026] S6. The worker stands indoors and inserts the shank 51 of the hook bolt 5 through the prefabricated ALC outer partition wall panel 1, and the hook 52 of the hook bolt 5 hooks onto the vertical plate of the angle steel 6. Before S6, the invention... Figure 4 As shown, a through hole 12 is opened between the inner and outer sides of the precast ALC outer partition wall 1 below the first notch 3. A second notch 4 is opened at the precast ALC outer partition wall 1 outside the through hole 12. The through hole 12 allows the shank 51 of the hook bolt 5 to pass through. After the shank 51 of the hook bolt 5 passes through the precast ALC outer partition wall 1, the second notch 4 is filled with adhesive mortar 9.

[0027] S7. Treat the joints between adjacent precast ALC exterior partition panels 1, and the joints between the precast ALC exterior partition panel 1 and the original concrete structure 8. Specifically, such as... Figure 5 and Figure 6 As shown, mesh fabric 10 is laid at the joints between adjacent precast ALC exterior partition wall panels 1 and at the joints between the precast ALC exterior partition wall panel 1 and the original concrete structure 8. Adhesive mortar 9 is then spread on the side of the mesh fabric 10 away from the precast ALC exterior partition wall panel 1. A waterproof layer 11 is then installed on the side of the mesh fabric 10 away from the precast ALC exterior partition wall panel 1 to improve waterproofing. Specifically, the waterproof layer 11 is a polyurethane waterproof coating. After the precast ALC exterior partition wall panels 1 are installed, the anti-overturning components 2 are removed.

[0028] An installation structure for a precast ALC (Alternating Current Carrier) external partition wall includes a precast ALC external partition wall panel 1, an anti-overturning component 2, angle steel 6, and hook bolts 5. The anti-overturning component 2 connects the precast ALC external partition wall panel 1 to the existing concrete structure 8 on both sides of the structural opening, providing temporary support points when the precast ALC external partition wall panel 1 tilts. The anti-overturning component 2 is removed after the precast ALC external partition wall panel 1 is installed.

[0029] Angle steel 6 is installed on the top inner side of the precast ALC external partition wall panel 1, and the vertical plate of angle steel 6 hooks onto the top inner side of the precast ALC external partition wall panel 1. Specifically, the top inner side of the precast ALC external partition wall panel 1 is cut with a first notch 3, and the vertical plate of angle steel 6 is adapted to the first notch 3. The horizontal plate of angle steel 6 is installed between the original concrete structure 8 at the top of the precast ALC external partition wall panel 1 and the precast ALC external partition wall panel 1, and the horizontal plate of angle steel 6 is connected to the original concrete structure 8 by expansion bolts 7.

[0030] The shank 51 of the hook bolt 5 passes through the precast ALC outer partition plate 1, and the hook 52 of the hook bolt 5 hooks onto the vertical plate of the angle steel 6. Specifically, a through hole 12 is provided between the inner and outer sides of the precast ALC outer partition plate 1 below the first notch 3, and a second notch 4 is provided at the precast ALC outer partition plate 1 outside the through hole 12. The shank 51 of the hook bolt 5 passes through the through hole 12, and the end of the shank 51 remains in the second notch 4 and is connected to the nut 13.

[0031] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A construction method for a prefabricated ALC external partition wall installation structure, characterized in that, Includes the following steps: S1, Precast ALC exterior partition wall panel (1) layout detailing, exterior wall opening inspection; S2. Connect the anti-overturning component (2) between the original concrete structures (8) on both sides of the opening in the outer wall to provide an inclined support point for the precast ALC outer partition wall panel (1); the anti-overturning component (2) includes two through-wall screws (21) and a connecting rod (22) connected between the two through-wall screws (21). S3. Place the prefabricated ALC external partition wall panel (1) at the opening of the external wall, tilt the prefabricated ALC external partition wall panel (1) outward so that the prefabricated ALC external partition wall panel (1) rests on the anti-overturning component (2) to complete the prefabricated ALC external partition wall panel (1). S4. Install the angle steel (6) inside the original concrete structure (8) at the top of the external wall opening according to the design requirements; before this, cut the first notch (3) on the top inside of the prefabricated ALC external partition wall panel (1), the first notch (3) being adapted to the vertical plate of the angle steel (6); S5. Straighten the prefabricated ALC external partition wall panel (1) to ensure that the vertical plate of the angle steel (6) hooks onto the top inner side of the prefabricated ALC external partition wall panel (1); S6. Pass the rod (51) of the hook bolt (5) through the prefabricated ALC outer partition wall (1), and hook the hook (52) of the hook bolt (5) onto the vertical plate of the angle steel (6); S7. Treat the joints between adjacent precast ALC exterior partition panels (1) and the joints between the precast ALC exterior partition panels (1) and the original concrete structure (8). S8. After the prefabricated ALC external partition wall panel (1) is installed, remove the anti-overturning component (2).

2. The construction method for the prefabricated ALC external partition wall installation structure according to claim 1, characterized in that, Before S6, a through hole (12) is opened between the inner and outer sides of the prefabricated ALC outer partition wall panel (1) below the first notch (3). A second notch (4) is opened at the prefabricated ALC outer partition wall panel (1) outside the through hole (12). The through hole (12) allows the shank (51) of the hook bolt (5) to pass through. In S6, after the shank (51) of the hook bolt (5) is passed through the prefabricated ALC outer partition wall panel (1), the second notch (4) is filled with adhesive mortar (9).

3. The construction method for the prefabricated ALC external partition wall installation structure according to claim 1, characterized in that, After the precast ALC external partition wall panel (1) is straightened in S5, adhesive mortar (9) is spread in the gap between the precast ALC external partition wall panel (1) and the original concrete structure (8).

4. The construction method for the prefabricated ALC external partition wall installation structure according to claim 1, characterized in that, In S7, a mesh cloth (10) is laid at the joint between adjacent precast ALC external partition wall panels (1) and at the joint between the precast ALC external partition wall panel (1) and the original concrete structure (8), and adhesive mortar (9) is spread on the side of the mesh cloth (10) away from the precast ALC external partition wall panel (1).

5. The construction method for the prefabricated ALC external partition wall installation structure according to claim 4, characterized in that, A waterproof layer (11) is also provided on the side of the mesh fabric (10) away from the prefabricated ALC external partition wall panel (1).

6. A prefabricated ALC external partition wall installation structure, comprising a prefabricated ALC external partition wall panel (1), characterized in that, The prefabricated ALC external partition wall installation structure is obtained by the construction method of the prefabricated ALC external partition wall installation structure according to any one of claims 1-5, and the prefabricated ALC external partition wall installation structure further includes: Anti-overturning component (2) is connected between the original concrete structures (8) on both sides of the structural opening; Angle steel (6) is set on the top inner side of the prefabricated ALC external partition wall panel (1), and the vertical plate of the angle steel (6) hooks onto the top inner side of the prefabricated ALC external partition wall panel (1). The hook bolt (5) has its shank (51) passing through the prefabricated ALC outer partition wall panel (1), and the hook (52) of the hook bolt (5) hooks onto the vertical plate of the angle steel (6).

7. The prefabricated ALC external partition wall installation structure according to claim 6, characterized in that, The top inner side of the prefabricated ALC external partition wall panel (1) is cut with a first notch (3), the vertical plate of the angle steel (6) is adapted to the first notch (3), and the horizontal plate of the angle steel (6) is set between the original concrete structure (8) at the top of the prefabricated ALC external partition wall panel (1) and the prefabricated ALC external partition wall panel (1).

8. The prefabricated ALC external partition wall installation structure according to claim 7, characterized in that, A through hole (12) is provided between the inner and outer sides of the prefabricated ALC outer partition wall panel (1) below the first notch (3). A second notch (4) is provided at the prefabricated ALC outer partition wall panel (1) outside the through hole (12). The rod (51) of the hook bolt (5) passes through the through hole (12), and the end of the rod (51) remains in the second notch (4) and is connected to the nut (13).

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