ALC panel wall body hole construction method

Abstract

The application belongs to the technical field of building engineering construction, and discloses an ALC plate wall hole construction method, which comprises the following steps: installing ALC plates in areas except the door hole top; reserving grooves on the ALC plates on both sides of the door hole; prefabricating a lintel according to the size of the grooves, and embedding longitudinal steel bars at both ends of the lintel; binding first construction column steel bars on both sides of the door hole; placing both ends of the lintel in the two grooves respectively, and binding and connecting the longitudinal steel bars at both ends of the lintel with the first construction column steel bars on both sides of the door hole; installing ALC plates in the area above the lintel, and binding second construction column steel bars at both ends above the lintel, and binding and connecting the longitudinal steel bars with the second construction column steel bars; supporting the first construction column steel bars and the second construction column steel bars, pouring concrete, and finally removing the formwork. Thus, the lintel and the upper and lower construction columns are constructed at one time, the strength of the lintel and the construction columns is improved, the lintel can bear a large door load, and the wall body is not prone to cracking.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a method for constructing openings in ALC panel walls. Background Technology

[0002] Currently, in the field of building construction, ALC (Autoclaved Lightweight Concrete) panels are increasingly being used in infill wall construction due to their advantages of being lightweight, high-strength, and quick to install. However, the construction technology is still somewhat immature.

[0003] For walls infilled with ALC panels, flat steel is often used to reinforce door openings to prevent cracking and damage at the wall-door connection due to the door's weight, external impacts, and frequent opening and closing. However, for larger doors, such as those in important public buildings like schools and hospitals, which often use large steel doors, these doors are not only larger in size but also heavier than doors in regular residential buildings, making them more prone to wall cracking and damage. Therefore, using conventional flat steel reinforcement for door openings in this area cannot guarantee the quality of subsequent construction. To ensure the construction quality of larger door openings, a lintel needs to be installed above the door opening, similar to the construction of ordinary walls, with structural columns on both sides. However, using conventional procedures for lintels and structural columns reduces the advantage of the fast installation speed of ALC panels. It requires first constructing the lower structural columns and lintel at the opening, then installing the upper ALC panels, and finally pouring the upper structural columns. This process is not only cumbersome and inefficient but also compromises construction quality, easily leading to wall cracking and loose door frames.

[0004] Therefore, there is an urgent need for a construction method for openings in ALC panel walls to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a construction method for wall openings made of ALC panels, so as to solve the problems of cumbersome construction procedures, low efficiency, and difficulty in ensuring construction quality when filling wall openings with ALC panels, which can easily lead to wall cracking and loose door frames.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A method for constructing openings in ALC panel walls includes the following steps:

[0008] Step S1: Install the ALC panel in the area excluding the area above the door opening; and make grooves on the ALC panel on both sides of the door opening;

[0009] Step S2: Prefabricate the lintel according to the dimensions of the groove, and pre-embed longitudinal steel bars at both ends of the lintel;

[0010] Step S3: Tie the reinforcing bars of the first structural column on both sides of the doorway;

[0011] Step S4: Place both ends of the lintel into the two grooves respectively, and pour mortar into the grooves to connect the lintel to the groove wall. Then, tie the longitudinal steel bars at both ends of the lintel to the first structural column steel bars on both sides of the doorway respectively.

[0012] Step S5: Install the ALC plate in the area above the lintel and tie the second structural column reinforcement bars at both ends above the lintel. Then tie the longitudinal reinforcement bars to the second structural column reinforcement bars respectively. The two second structural column reinforcement bars correspond one-to-one with the two first structural column reinforcement bars and are on the same vertical line.

[0013] Step S6: Set up formwork for the first structural column reinforcement and the second structural column reinforcement, and pour concrete.

[0014] Step S7: Once the concrete reaches the preset strength, remove the formwork.

[0015] Preferably, in step S1, the opening height of the groove is not less than 30mm higher than the height of the lintel, so as to form a notch above the lintel.

[0016] Preferably, after mortar is poured into the groove, dry-hardened cement mortar is inserted into the gap to fill the gap.

[0017] Preferably, in step S1, before installing the ALC panels in the area other than above the door opening, the ALC panels in the area other than above the door opening are arranged. If the ALC panels retain tongue and groove at the ends, no processing is required. If they are cut due to size issues, tie bars are inserted at the ends of adjacent ALC panels to connect the adjacent ALC panels.

[0018] Preferably, the two ends of the tie bar are inserted into the adjacent ALC plate to a depth of not less than 500 mm.

[0019] Preferably, in step S2, the longitudinal reinforcement bars pass through the lintel, and the connection between the lintel and the longitudinal reinforcement bars is roughened.

[0020] Preferably, in step S5, the reinforcing bars of the second structural column are tied to the main beam or floor slab above the lintel.

[0021] Preferably, in step S5, before installing the ALC plate in the area above the lintel, the ALC plates in the area above the lintel are arranged. If the ALC plate retains a tongue and groove at the end, no processing is required. If it is cut due to size issues, tie bars are inserted at the ends of adjacent ALC plates to connect the adjacent ALC plates.

[0022] Preferably, in step S6, a first pouring port is reserved on the template at the top of the first structural column reinforcement, and a second pouring port is reserved on the template at the top of the second structural column reinforcement.

[0023] Preferably, in step S7, after demolding, the excess concrete at the first pouring port and the second pouring port is chipped and polished.

[0024] The beneficial effects of this invention are:

[0025] The ALC panel wall opening construction method provided by this invention involves pre-reserving grooves on the ALC panels on both sides of the doorway and prefabricating lintels according to the groove dimensions. After the ALC panels are installed, the lintels are installed by placing both ends of the lintels into the grooves. Mortar is then poured into the grooves to connect the lintels to the groove walls, achieving initial fixation. By pre-embedding longitudinal reinforcing bars at both ends of the lintel, after the first structural column reinforcing bars are tied on both sides of the doorway, the longitudinal reinforcing bars are tied to the first structural column reinforcing bars to connect the first structural column reinforcing bars to the lintel. Above the lintel... After the reinforcement bars of the second structural column are tied at both ends, they are tied to the reinforcement bars of the second structural column through longitudinal reinforcement bars to connect the reinforcement bars of the second structural column with the lintel, thereby improving the integrity of the structural column and the lintel. By supporting the formwork of the reinforcement bars of the first and second structural columns and pouring concrete, the structural column is formed. The construction of the structural columns on both sides of the lintel is realized in one go. The structural column and the lintel can form an integral structure through concrete and longitudinal reinforcement bars, which greatly improves the strength of the lintel and the structural column. It can bear a large door load, the door is not easy to loosen, and it can effectively protect the wall from cracking. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the ALC panel wall opening provided in an embodiment of the present invention;

[0027] Figure 2 yes Figure 1 Cross-sectional view of AA.

[0028] In the picture:

[0029] 1. Doorway; 2. ALC slab; 3. Lintel; 31. Longitudinal reinforcement; 4. First structural column reinforcement; 5. Second structural column reinforcement; 6. First pouring opening; 7. Second pouring opening. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0031] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0034] like Figure 1 and Figure 2 As shown, this embodiment provides a method for constructing openings in an ALC panel wall, including the following steps:

[0035] Step S1: Install ALC plate 2 in the area excluding the area above the door opening 1; and reserve grooves on the ALC plate 2 on both sides of the door opening 1.

[0036] Step S2: Prefabricate the lintel 3 according to the dimensions of the groove, and pre-embed longitudinal steel bars 31 at both ends of the lintel 3.

[0037] Step S3: Tie the first structural column steel bars 4 on both sides of the doorway 1.

[0038] Step S4: Place the two ends of the lintel 3 into the two grooves respectively, and pour mortar into the grooves to connect the lintel 3 with the groove wall. Then, tie the longitudinal steel bars 31 at both ends of the lintel 3 to the first structural column steel bars 4 on both sides of the door opening 1 respectively.

[0039] Step S5: Install ALC plate 2 in the area above lintel 3 and tie the second structural column reinforcement 5 at both ends above lintel 3. Then tie the longitudinal reinforcement 31 to the second structural column reinforcement 5 respectively. The two second structural column reinforcement 5 correspond one-to-one with the two first structural column reinforcement 4 and are on the same vertical line.

[0040] Step S6: Set up formwork for the first structural column reinforcement 4 and the second structural column reinforcement 5, and pour concrete.

[0041] Step S7: Once the concrete reaches the preset strength, remove the formwork.

[0042] The ALC panel wall opening construction method provided in this embodiment involves pre-reserving grooves on the ALC panels 2 on both sides of the door opening 1, and prefabricating lintels 3 according to the dimensions of the grooves. After the ALC panels 2 are installed, the two ends of the lintels 3 are respectively placed in the grooves to achieve the installation of the lintels 3. Mortar is poured into the grooves to connect the lintels 3 to the groove walls, achieving the initial fixation of the lintels 3. By pre-embedding longitudinal steel bars 31 at both ends of the lintels 3, after the first structural column steel bars 4 are tied on both sides of the door opening 1, the longitudinal steel bars 31 are tied to the first structural steel bars to achieve the connection between the first structural column steel bars 4 and the lintels 3. After the upper two ends of the second structural column steel bar 5 are tied together, the second structural column steel bar 5 is tied together with the longitudinal steel bar 31 to achieve the connection between the second structural column steel bar 5 and the lintel 3, thereby improving the integrity of the structural column and the lintel 3. By supporting the formwork of the first structural column steel bar 4 and the second structural column steel bar 5 and pouring concrete, the structural column is formed. The construction of the structural columns on the upper and lower sides of the lintel 3 is achieved in one go. The structural column and the lintel 3 can form an integral structure through concrete and longitudinal steel bar 31, which greatly improves the strength of the lintel 3 and the structural column, enabling it to bear a large door load, making the door less prone to loosening, and effectively protecting the wall from cracking.

[0043] Optionally, in step S1, the opening height of the groove is not less than 30mm higher than the height of the lintel 3, so as to form a notch above the lintel 3. This provides space for the lintel 3 to move within the groove, thereby adjusting the position of the lintel 3 and facilitating its installation.

[0044] Optionally, after grout is poured into the groove, dry-hardened cement mortar is inserted into the gap to fill it. It is understood that after grout is poured into the groove, the lintel 3 can be fixed in the groove. However, after the grout hardens, a gap will form between the lintel 3 and the top of the groove. To prevent the lintel 3 from being loosely fixed in the groove, dry-hardened cement mortar is inserted into the gap to fill it, thereby fixing the position of the lintel 3 and improving the connection strength between the lintel 3 and the ALC plate 2.

[0045] Optionally, in step S1, before installing the ALC panels 2 in the area excluding the area above the doorway 1, the ALC panels 2 in the area excluding the doorway 1 are arranged. If the ALC panels 2 retain tongue and groove joints at their ends, no further processing is needed. If they are cut due to size issues, tie bars are inserted into the ends of adjacent ALC panels 2 to connect them. It is understood that complete ALC panels 2 have tongue and groove joints at their ends, allowing adjacent ALC panels 2 to be connected via these joints. However, in actual engineering projects, some ALC panels 2 need to be cut, thus damaging the tongue and groove joints, making it impossible for adjacent ALC panels 2 to be connected via these joints. Therefore, tie bars are inserted into the ends of adjacent ALC panels 2 to connect them.

[0046] Optionally, the two ends of the tie bar are embedded into the adjacent ALC plate 2 to a depth of not less than 500mm. This increases the connection strength of the adjacent ALC plates 2 by increasing the anchorage length of the tie bar. Specifically, in this embodiment, the tie bar is a steel bar; in other embodiments, the tie bar may also be a bolt. The specific material is not specifically limited here.

[0047] Optionally, in step S2, the longitudinal reinforcement 31 passes through the lintel 3, and the connection between the lintel 3 and the longitudinal reinforcement 31 is roughened. By roughening, an uneven surface can be formed at the connection between the lintel 3 and the longitudinal reinforcement 31. Therefore, after the formwork is erected for the first structural column reinforcement 4 and the second structural column reinforcement 5 and concrete is poured, the connection between the concrete and the lintel 3 can be made denser and stronger, thereby improving the overall integrity of the structural column and the lintel 3.

[0048] Optionally, such as Figure 2 As shown, in step S5, the second structural column reinforcement 5 is tied to the main beam or floor slab above the lintel 3. Thus, after the formwork for the second structural column reinforcement 5 is erected and concrete is poured, the concrete can connect to the main beam or floor slab above the lintel 3, thereby connecting the structural column to the main beam or floor slab above the beam, improving the integrity of the structural column with the main beam or floor slab, and increasing the strength of the structural column.

[0049] Optionally, in step S5, before installing the ALC panels 2 in the area above the lintel 3, the ALC panels 2 in the area above the lintel 3 are arranged. If the ALC panels 2 retain a tongue and groove joint at the ends, no further processing is needed. If they are cut due to size issues, tie bars are inserted at the ends of adjacent ALC panels 2 to connect them. It is understood that the area above the lintel 3, like the area below it, is also filled with ALC panels 2 to form a wall. Therefore, adjacent complete ALC panels 2 are connected by tongue and groove joints, and cut ALC panels 2 are connected by tie bars to ensure the stability of the wall.

[0050] Optionally, such as Figure 2 As shown, in step S6, a first pouring port 6 is reserved on the formwork at the top of the first structural column reinforcement 4, and a second pouring port 7 is reserved on the formwork at the top of the second structural column reinforcement 5. By reserving the first pouring port 6 and the second pouring port 7 on the formwork at the top of the first structural column reinforcement 4 and the second structural column reinforcement 5 respectively, it is convenient to pour concrete. The concrete flows to the bottom of the formwork under the action of gravity. During the pouring process, the formwork is gradually filled with concrete until the first pouring port 6 and the second pouring port 7 are reached. This ensures the compactness of the concrete pouring in the formwork and improves the quality of concrete pouring.

[0051] Optionally, in step S7, after demolding, excess concrete at the first pouring port 6 and the second pouring port 7 is chipped and ground down. This is to prevent concrete from protruding from the structural column, causing inconvenience in door installation and affecting aesthetics.

[0052] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A method for constructing openings in ALC panel walls, characterized in that, Includes the following steps: Step S1: Install ALC plates (2) in the area excluding the area above the door opening (1); and reserve grooves on the ALC plates (2) on both sides of the door opening (1); Step S2: Prefabricate the lintel (3) according to the dimensions of the groove, and pre-embed longitudinal steel bars (31) at both ends of the lintel (3); Step S3: Tie the first structural column reinforcement (4) on both sides of the doorway (1); Step S4: Place the two ends of the lintel (3) into the two grooves respectively, and pour mortar into the grooves to connect the lintel (3) with the groove wall. Then, tie the longitudinal steel bars (31) at both ends of the lintel (3) to the first structural column steel bars (4) on both sides of the door opening (1). Step S5: Install the ALC plate (2) in the area above the lintel (3) and tie the second structural column steel bars (5) at both ends above the lintel (3). Then tie the longitudinal steel bars (31) to the second structural column steel bars (5) respectively. The two second structural column steel bars (5) correspond one-to-one with the two first structural column steel bars (4) and are on the same vertical line. Step S6: Formwork is erected for the first structural column reinforcement (4) and the second structural column reinforcement (5), and concrete is poured. Step S7: Once the concrete reaches the preset strength, remove the formwork.

2. The construction method for openings in ALC panel walls according to claim 1, characterized in that, In step S1, the opening height of the groove is not less than 30mm higher than the height of the lintel (3) to form a notch above the lintel (3).

3. The construction method for openings in ALC panel walls according to claim 2, characterized in that, After mortar is poured into the groove, dry-hardened cement mortar is inserted into the gap to fill the gap.

4. The construction method for openings in ALC panel walls according to claim 1, characterized in that, In step S1, before installing the ALC board (2) in the area other than above the door opening (1), the ALC board (2) in the area other than above the door opening (1) is arranged. If the ALC board (2) retains tongue and groove at the end, no processing is required. If it is cut due to size issues, tie bars are inserted at the ends of adjacent ALC boards (2) to connect adjacent ALC boards (2).

5. The construction method for openings in ALC panel walls according to claim 4, characterized in that, The two ends of the tie bar are implanted into the adjacent ALC plate (2) to a depth of not less than 500 mm.

6. The construction method for openings in ALC panel walls according to claim 1, characterized in that, In step S2, the longitudinal steel bar (31) is installed through the lintel (3) at both ends, and the connection between the lintel (3) and the longitudinal steel bar (31) is roughened.

7. The construction method for openings in ALC panel walls according to claim 1, characterized in that, In step S5, the second structural column reinforcement (5) is tied to the main beam or floor slab above the lintel (3).

8. The construction method for openings in ALC panel walls according to claim 1, characterized in that, In step S5, before installing the ALC plate (2) in the area above the lintel (3), the ALC plate (2) in the area above the lintel (3) is arranged. If the ALC plate (2) retains tongue and groove at the end, no processing is required. If it is cut due to size issues, tie bars are inserted at the ends of adjacent ALC plates (2) to connect adjacent ALC plates (2).

9. The construction method for openings in ALC panel walls according to claim 1, characterized in that, In step S6, a first pouring port (6) is reserved on the template at the top of the first structural column reinforcement (4), and a second pouring port (7) is reserved on the template at the top of the second structural column reinforcement (5).

10. The construction method for openings in ALC panel walls according to claim 9, characterized in that, In step S7, after the formwork is removed, the excess concrete at the first pouring port (6) and the second pouring port (7) is chipped and polished.

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