Construction method of high sound insulation wall

Abstract

The application discloses a construction method of a high sound insulation wall body, and the construction standard is specified through unified and strict construction steps, the construction process is simple and easy to understand, standardized construction can be implemented, construction efficiency and construction quality are improved, sound insulation quality of the sound insulation wall body is ensured, on-site management is facilitated, the construction steps and the process can be unified, in the batch construction process, consumption materials can be saved to the maximum extent, the air sound insulation of the wall body can be improved to above 51 dB, low-frequency pipeline noise and high-frequency conversation sound can be effectively insulated, and a quiet environment is provided for hotels, residences, office spaces and the like, and the industry pain point of poor sound insulation of traditional wall bodies is solved.

Description

Technical Field

[0001] This invention belongs to the field of soundproof wall technology, specifically relating to a construction method for a high soundproof wall. Background Technology

[0002] The sound insulation effect of walls directly affects the living comfort of a house. With the development of architecture, many buildings use lightweight panels for non-load-bearing partition walls. Traditional light steel keel partition walls use light steel keels as the framework and gypsum board as the surface layer to form a hollow core, creating a non-load-bearing partition wall system with two flat sides. However, the construction process is slow, requiring on-site cutting and fixing of the keel, filling with sound insulation cotton, and applying glue. This results in a lot of material waste and also tests the skill level of the installers. The sound insulation effect may be unsatisfactory in the same room due to different installers' skill levels and methods. Therefore, a construction method for double-cavity sound insulation walls has been developed to standardize construction and improve construction efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a construction method for high sound insulation walls. By specifying construction standards through unified and strict construction steps, the construction process is simple and easy to understand, enabling standardized construction, improving construction efficiency and quality, and ensuring the sound insulation quality of the sound insulation walls.

[0004] This invention is achieved through the following technical solution: A method for constructing a high sound insulation wall includes the following steps: S1: Construct the keel frame; S2: Sound insulation cotton filling; S3: Front and rear sealing plate installation; S4: Sealing treatment.

[0005] Preferably, in step S1, the keel frame adopts a double-cavity light steel keel structure, the vertical keel adopts an H-shaped slot design, a convex slot is set in the middle, and anti-slip positioning structure is set on both sides; the top and bottom keels and the vertical keels are connected by snap-fit ​​or bolts to form a continuous cavity, and the cavity width is 50-100mm.

[0006] Preferably, in step S2, the sound insulation cotton is rock wool or glass wool, with a density ≥80kg / m³ and a filling rate ≥95%.

[0007] Preferably, the sound insulation cotton is filled in layers, with each layer having a thickness of ≤40mm, and the layers are staggered and spliced ​​together, and then compacted with a pressure plate.

[0008] Preferably, in step S3, the sealing board is a double-layer fireproof gypsum board with a thickness ≥12mm.

[0009] Preferably, when installing the front and rear sealing plates in step S3, self-tapping screws are used for fixing. The spacing between the self-tapping screws is: edge distance ≤ 150mm, center distance ≤ 300mm, and screw distance from the edge of the plate is 10-15mm.

[0010] Preferably, the joints between the double-layer fireproof gypsum boards are staggered by ≥300mm and do not overlap with the joints of the keel.

[0011] Preferably, the sealing treatment in step S4 is as follows: fill the joints of the outer fireproof gypsum board with elastic joint filler and attach alkali-resistant fiberglass mesh; inject polyurethane sealant at the junction of the wall and the floor slab and column.

[0012] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1) This invention specifies construction standards through unified and strict construction steps, making the construction process simple and easy to understand. It enables standardized construction, improves construction efficiency and quality, ensures the sound insulation quality of the soundproof wall, facilitates on-site management, and unifies construction steps and processes. During batch construction, it can save materials to the greatest extent and can increase the airborne sound insulation of the wall to more than 51dB. It can effectively isolate low-frequency pipe noise and high-frequency conversation noise, providing a quiet environment for hotels, residences, office spaces, etc., and solving the industry pain point of poor sound insulation of traditional walls.

[0013] 2) The construction process of this invention adopts a modular design, with clear and quantifiable parameters from keel processing to board installation. Combined with standardized sealing technology, it can shorten the construction cycle, reduce on-site wet work, and reduce dust pollution. The materials selected are Class A fireproof and soundproof cotton and fireproof gypsum board, which improves sound insulation performance while ensuring building fire safety and indoor air quality. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0015] Example 1:

[0016] A construction method for a high sound insulation wall involves first fabricating a double-cavity light steel keel frame. The vertical keel uses 100mm wide H-shaped slot light steel keel made of Q235 cold-rolled galvanized steel sheet with a thickness of 1.2mm. The inner side of the slot is equipped with a convex slot with a height of 20mm and a width of 15mm, used to fix the horizontal support keel. The two sides of the keel are stamped with 3mm high anti-slip toothed positioning structures with a spacing of 50mm to prevent displacement when filling with sound insulation cotton.

[0017] The top and bottom keel uses matching 100mm wide U-shaped light steel keel with a thickness of 1.0mm. The inner side has pre-set bolt holes with a spacing of 400mm. It is connected to the vertical keel by galvanized bolts or directly fixed by the buckle at the end of the vertical keel, forming two independent 50mm wide continuous cavities.

[0018] When installing the keel, mark the keel installation baseline on the ground, top surface and side walls. The spacing between the vertical keels should be strictly controlled at 400mm with an error of less than 5mm. The gap between the top and bottom keels and the wall should be ≤2mm, and the gap should be filled tightly with polyurethane foam.

[0019] A C-shaped horizontal support keel is installed every 600mm on the vertical keel. The support keel is embedded in the convex slot of the vertical keel and fixed with self-tapping screws to enhance the overall stability of the frame and prevent the keel from deforming after the sound insulation cotton is filled.

[0020] Next, high-density layered sound insulation cotton is used for filling. The sound insulation cotton is made of water-repellent rock wool board with a density of 80kg / m³, a fire performance rating of Class A, a thermal conductivity of ≤0.038W / (m·K), and a noise reduction coefficient (NRC) of ≥0.90. A 5mm installation gap is reserved for each piece of sound insulation cotton.

[0021] The sound insulation cotton is filled in layers. The first layer is filled by embedding 40mm thick sound insulation cotton into the cavity formed by the vertical keel and the top and bottom keels. The cotton block is tightly attached to the side of the keel, and the filling rate reaches 98%. It is then compacted with a custom steel plate to ensure that the cotton block has no gaps or bulges.

[0022] The second layer of filling involves laying a 40mm thick layer of sound insulation cotton on top of the first layer, with staggered joints between the layers, with a staggered joint distance of ≥200mm, to avoid vertical gaps running through each other. After filling, the filling is compacted again with a pressure plate to ensure that the total thickness of the two layers of sound insulation cotton is consistent with the height of the cavity.

[0023] Example 2:

[0024] Based on the above embodiments, this embodiment further defines the installation of the front and rear sealing plates. The light steel keel frame is equipped with double-layer fireproof gypsum board, using 12mm thick Class A fireproof gypsum board with glass fiber reinforcement material added to the core; the total thickness of the double-layer sealing plates is 24mm.

[0025] During the installation of the gypsum board, the screw spacing on the board edge is 150mm and the spacing in the middle of the board is 300mm; the joint of the second layer of gypsum board is staggered from the joint of the first layer by a distance of ≥300mm, and the joint position does not coincide with the joint of the vertical keel to avoid sound being directly transmitted through the joint.

[0026] The second layer of sealing plate is fixed with 3.5×30mm self-tapping screws. The screw positions are staggered by ≥50mm from the screws of the first layer to prevent the screws of the two layers of sealing plates from penetrating and forming a sound bridge.

[0027] The joints of the outer fireproof gypsum board are filled with elastic joint filler, which is 20mm wide and 1mm thick. After the filler dries, a 100mm wide alkali-resistant fiberglass mesh is pasted on, with the mesh extending 40mm beyond each side of the joint. Then, another layer of elastic filler is applied to level the joint and enhance its crack resistance and sound insulation.

[0028] At the junction of the wall and the floor slab and column, first fill with PE foam rods as a backing, then inject polyurethane sealant. The sealant depth should be ≥10mm and the width 20mm. Smooth the surface of the sealant to ensure it is flush with the wall.

[0029] At the junction of the door frame and the wall, a special soundproof sealing strip is installed. The sealing strip is ≥8mm thick to block air transmission of sound through the gap.

[0030] 72 hours after the wall construction is completed, the weighted sound insulation is measured using a sound insulation measuring instrument and must reach ≥50dB. The test points are selected at the middle and corners of the wall, and each location is tested 3 times. The average value is taken as the final result.

[0031] In the description of this invention, it should be noted that the terms “center,” “upper,” “lower,” “left,” “right,” “vertical,” “horizontal,” “inner,” and “outer” used are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0032] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this invention does not imply that the components are required to be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A construction method for a high sound insulation wall, characterized in that, Includes the following steps: S1: Construct the keel frame; S2: Sound insulation cotton filling; S3: Front and rear sealing plate installation; S4: Sealing treatment.

2. The construction method of the high sound insulation wall as described in claim 1, characterized in that, In step S1, the keel frame adopts a double-cavity light steel keel structure. The vertical keel adopts an H-shaped slot design with a convex slot in the middle and anti-slip positioning structure on both sides. The top and bottom keels and the vertical keels are connected by snap-fit ​​or bolts to form a continuous cavity with a cavity width of 50-100mm.

3. The construction method of the high sound insulation wall as described in claim 1, characterized in that, In step S2, the sound insulation cotton is rock wool or glass wool, with a density ≥80kg / m³ and a filling rate ≥95%.

4. The construction method of the high sound insulation wall as described in claim 3, characterized in that, The sound insulation cotton is filled in layers, with each layer being ≤40mm thick. The layers are staggered and then compacted with a pressure plate.

5. The construction method of the high sound insulation wall as described in claim 1, characterized in that, In step S3, the sealing board is made of double-layer fireproof gypsum board with a thickness of ≥12mm.

6. The construction method of the high sound insulation wall as described in claim 5, characterized in that, When installing the front and rear sealing plates in step S3, self-tapping screws are used for fixing. The spacing between the self-tapping screws is: edge distance ≤ 150mm, center distance ≤ 300mm, and screw distance 10-15mm from the edge of the plate.

7. The construction method of the high sound insulation wall as described in claim 5, characterized in that, The joints between the two layers of fireproof gypsum boards should be staggered by ≥300mm and should not overlap with the joints of the keel.

8. The construction method of the high sound insulation wall as described in claim 5, characterized in that, The specific steps for sealing in step S4 are as follows: fill the joints of the outer fireproof gypsum board with elastic joint filler and attach alkali-resistant fiberglass mesh; inject polyurethane sealant at the junction of the wall and the floor slab and column.