Noise reduction structure for house building
By combining materials such as cement fiber pressure board, fireproof rock wool, gypsum board, composite damping sound insulation board and sound insulation felt, a multi-layer sound insulation system is formed, which solves the problem of low-frequency noise transmission in buildings and achieves efficient noise reduction and a quieter living environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-14
AI Technical Summary
Existing buildings cannot effectively reduce low-frequency noise, especially low-frequency vibrations from overpasses or roads, as well as the sounds of daily conversations, shouting, barking dogs, television, and musical instruments. These low-frequency noises have strong penetrating power, leading to serious noise pollution and affecting residents' health and mental well-being.
The system uses a combination of cement fiber pressure board, fireproof rock wool, gypsum board, composite damping sound insulation board, sound insulation felt and keel steel frame, etc., and connects and fills sound-absorbing cotton and air layer through adhesive process to form a multi-layer sound insulation system that absorbs and blocks noise of different frequency bands.
It effectively reduces low-frequency noise, creates a quiet living environment, alleviates psychological anxiety, improves sound insulation to ≥50dB, reduces normal conversation to the level of a whisper, and reduces the impact of noise pollution on health.
Smart Images
Figure CN224119741U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of noise reduction structure technology for building construction, specifically a noise reduction structure for building construction. Background Technology
[0002] Building noise reduction structures are a comprehensive solution for addressing urban noise pollution, protecting health rights, and meeting policy regulations. Through material innovation, system design, and construction quality control, they achieve a leap from "basic sound insulation" to "precise noise reduction." Noise complaints about urban residential buildings in my country are increasing year by year. Long-term exposure to noise levels above 55dB significantly increases the risk of cardiovascular disease and can easily lead to sleep disorders and neurasthenia. Building noise reduction structures, through sound insulation materials and vibration reduction technology, increase the airborne sound insulation of partition walls to ≥50dB, reducing normal conversation to a whisper level. Noise pollution can lead to increased stress levels among residents; noise reduction structures create a quiet living environment and alleviate psychological anxiety by blocking solid-borne and airborne sound transmission.
[0003] However, low-frequency noise permeates people's lives, including low-frequency vibrations from vehicles on overpasses or roads, daily conversations, shouts, barking of pet dogs, television and musical instrument playing, and external speakers. Low-frequency noise has a long wavelength and strong penetrating power, making it easy to spread through building structures. Existing buildings often struggle to effectively reduce low-frequency noise.
[0004] To address this issue, we designed a noise-reducing structure for building construction. Utility Model Content
[0005] The purpose of this invention is to provide a noise reduction structure for building construction, so as to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, this utility model provides a noise reduction structure for building construction, including a cement fiber pressure board and concrete blocks. Fireproof rock wool is provided on one side of the cement fiber pressure board, and gypsum board is provided on the side of the fireproof rock wool facing away from the cement fiber pressure board. The gypsum board is provided on one side of the keel steel frame, and a composite damping sound insulation board is provided on the other side of the keel steel frame. Sound insulation felt is provided on the side of the composite damping sound insulation board facing away from the keel steel frame.
[0007] Furthermore, the cement fiber pressure board has a thickness of 18mm, the fireproof rock wool has a thickness of 50mm, and the cement fiber pressure board and the fireproof rock wool are connected by an adhesive process.
[0008] Furthermore, the gypsum board is 12mm thick, the keel steel frame is 20mm thick, the composite damping sound insulation board is 15mm thick, and sound insulation sealant is applied to the joints of the gypsum board and the composite damping sound insulation board with the keel steel frame.
[0009] Furthermore, multiple sets of hollow grooves are formed at the keel steel frame, and sound-absorbing cotton is installed inside each set of hollow grooves.
[0010] Furthermore, the sound insulation felt is 5mm thick, and the sound insulation felt is connected to the composite damping sound insulation board by an adhesive process.
[0011] Furthermore, the thickness of the concrete block is 150mm, and a 20mm thick air layer is provided between the concrete block and the sound insulation felt.
[0012] Furthermore, the outer surface of the concrete block is brushed with a 3mm thick layer of sound-insulating mortar.
[0013] Compared with the prior art, the beneficial effects of this utility model are: the structure can effectively absorb and reduce low-frequency noise by setting up composite damping sound insulation boards, sound insulation felt, air layers, and filling the keel steel frame with sound-absorbing cotton. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the overall external structure of this utility model;
[0015] Figure 2 This is a three-dimensional structural schematic diagram of the present invention, showing a layer-by-layer sectional view from the front.
[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the keel steel frame of this utility model.
[0017] In the diagram: 1. Cement fiber pressure board; 2. Fireproof rock wool; 3. Gypsum board; 4. Keel steel frame; 5. Composite damping sound insulation board; 6. Sound insulation felt; 7. Air layer; 8. Concrete block; 9. Sound insulation mortar; 10. Sound-absorbing cotton. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figure 1-3This utility model provides a technical solution: a noise reduction structure for building construction, including a cement fiber pressure board 1 and concrete blocks 8. Fireproof rock wool 2 is provided on one side of the cement fiber pressure board 1, and gypsum board 3 is provided on the side of the fireproof rock wool 2 facing away from the cement fiber pressure board 1. The gypsum board 3 is provided on one side of the keel steel frame 4, and a composite damping sound insulation board 5 is provided on the other side of the keel steel frame 4. Sound insulation felt 6 is provided on the side of the composite damping sound insulation board 5 facing away from the keel steel frame 4.
[0020] In specific implementation, the cement fiber pressure board 1 is 18mm thick, the fireproof rock wool 2 is 50mm thick, and the cement fiber pressure board 1 and fireproof rock wool 2 are connected by an adhesive process. The fireproof rock wool 2 can provide a certain fire resistance and further improve the sound insulation effect. The gypsum board 3 is 12mm thick, the keel steel frame 4 is 20mm thick, and the composite damping sound insulation board 5 is 15mm thick. Sound insulation sealant is applied to the joints of the gypsum board 3 and the composite damping sound insulation board 5 with the keel steel frame 4 to avoid gaps that would affect the sound insulation effect. The composite damping sound insulation board 5 can suppress the transmission of low-frequency vibrations and effectively reduce low-frequency noise. The keel steel frame 4 is shaped as follows: The structure consists of multiple sets of hollow slots, each filled with sound-absorbing cotton 10. The sound-absorbing cotton 10 fills the cavities and absorbs low-frequency noise, preventing the mutual propagation of sound within the multiple cavities. The sound insulation felt 6 is 5mm thick and is connected to the composite damping sound insulation board 5 by an adhesive process. The concrete block 8 is 150mm thick, and a 20mm thick air layer 7 is placed between the concrete block 8 and the sound insulation felt 6. The combination of the sound insulation felt 6 and the air layer 7 can effectively absorb mid-to-low frequency noise. The outer surface of the concrete block 8 is brushed with a 3mm thick layer of sound-insulating mortar 9, which can increase the surface density to block high-frequency noise.
[0021] Working principle: An 18mm thick cement fiber pressure board 1 is bonded to a 50mm thick fireproof rock wool 2 on one side using an adhesive process. The fireproof rock wool 2 provides a certain fire resistance and further enhances sound insulation. The side of the fireproof rock wool 2 facing away from the cement fiber pressure board 1 is bonded to a gypsum board 3 using an adhesive process. A 12mm thick gypsum board 3 and a 15mm thick composite damping sound insulation board 5 are respectively placed on both sides of the keel steel frame 4, and sound insulation sealant is applied to the joints to avoid gaps affecting the sound insulation effect. The composite damping sound insulation board 5 can suppress the transmission of low-frequency vibrations, effectively reducing low-frequency noise. The thickness of the keel steel frame 4 is 20mm. The keel steel frame has multiple sets of slots at 4 locations, and each set of slots is filled with sound-absorbing cotton 10. By filling the cavities with sound-absorbing cotton 10, the mutual propagation of sound within the multiple cavities can be avoided and low-frequency noise can be absorbed. The composite damping sound insulation board 5 is connected to the 5mm thick sound insulation felt 6 on the side facing away from the keel steel frame 4 by an adhesive process. The concrete block 8 is 150mm thick, and a 20mm thick air layer 7 is set between the concrete block 8 and the sound insulation felt 6. The combination of the sound insulation felt 6 and the air layer 7 can effectively absorb mid-to-low frequency noise. The outer surface of the concrete block 8 is brushed with a 3mm thick layer of sound insulation mortar 9, which can increase the surface density to block high-frequency noise.
Claims
1. A noise reduction structure for building construction, comprising a cement fiber pressure board (1) and concrete blocks (8), characterized in that, Fireproof rock wool (2) is provided on one side of the cement fiber pressure board (1), and gypsum board (3) is provided on the side of the fireproof rock wool (2) facing away from the cement fiber pressure board (1). The gypsum board (3) is provided on one side of the keel steel frame (4), and composite damping sound insulation board (5) is provided on the other side of the keel steel frame (4). Sound insulation felt (6) is provided on the side of the composite damping sound insulation board (5) facing away from the keel steel frame (4).
2. The noise reduction structure for building construction as described in claim 1, characterized in that: The cement fiber pressure board (1) is 18mm thick, the fireproof rock wool (2) is 50mm thick, and the cement fiber pressure board (1) and the fireproof rock wool (2) are connected by an adhesive process.
3. The noise reduction structure for building construction as described in claim 1, characterized in that: The gypsum board (3) is 12mm thick, the keel steel frame (4) is 20mm thick, and the composite damping sound insulation board (5) is 15mm thick. Both the gypsum board (3) and the composite damping sound insulation board (5) are coated with sound insulation sealant at the joint with the keel steel frame (4).
4. A noise reduction structure for building construction as described in claim 3, characterized in that: Multiple sets of empty slots are formed at the keel steel frame (4), and sound-absorbing cotton (10) is provided inside each set of empty slots.
5. A noise reduction structure for building construction as described in claim 1, characterized in that: The sound insulation felt (6) is 5 mm thick, and the sound insulation felt (6) is connected to the composite damping sound insulation board (5) by an adhesive process.
6. A noise reduction structure for building construction as described in claim 1, characterized in that: The thickness of the concrete block (8) is 150mm, and a 20mm thick air layer (7) is provided between the concrete block (8) and the sound insulation felt (6).
7. A noise reduction structure for building construction as described in claim 1, characterized in that: The outer surface of the concrete block (8) is brushed with a 3mm thick layer of sound-insulating mortar (9).