RU209635U1 - Soundproof fence - Google Patents

Abstract

The utility model relates to construction and is intended for use as a soundproof fence between the premises of residential, public and industrial buildings. Currently, in urban areas, protection of the population from noise is relevant. This task is important in the construction of new and renovation of existing buildings. Elevated noise levels cause great harm to human health, lead to the emergence and development of serious diseases. Therefore, the creation of new types of soundproof enclosures (partitions between rooms) that provide the required noise reduction in residential buildings, as well as at workplaces in public and industrial buildings, is an urgent and important task for the Russian construction industry.

Description

The utility model relates to construction and is intended to be used as a soundproof barrier between residential, public and industrial buildings.

Currently, in the conditions of urban development, the protection of the population from noise is relevant. This task is important in the construction of new and renovation of existing buildings. Elevated noise levels cause great harm to human health, lead to the emergence and development of serious diseases. Therefore, the creation of new types of soundproof enclosures (partitions between rooms) that provide the required noise reduction in residential buildings, as well as at workplaces in public and industrial buildings, is an urgent and important task for the Russian construction industry.

Closest to the claimed device, selected as a prototype, is a soundproof fence (utility model patent No. 194663, IPC E04B 2/76, publ. 12/18/2019).

In a soundproof enclosure made of sheet skins fixed on a frame of guide metal profiles and rack metal profiles, between the rack metal frame profiles, rectangular elements made of sheet material are fixed through a layer of elastic material.

The disadvantage of the known soundproof fence is: the elements of the supporting frame (rails and rack profiles of the frame) are covered with sheet sheathing on only one side of the fence, which does not provide sufficient sound insulation and makes it impossible to use the fence as partitions between buildings.

The technical problem solved by the proposed utility model is the improvement of the soundproof enclosure for its use in the form of soundproof partitions between the premises of residential, public and industrial buildings.

The technical result of using the utility model is to increase the sound insulation of the soundproof enclosure.

This result is achieved by the fact that in a soundproof enclosure made of sheet sheathing, fixed on a frame of metal profiles on the front side, with rectangular elements, made of sheet material, fixed to the sheet sheathing through a layer of elastic material, an additional sheet sheathing is attached to the frame elements from the side opposite to the mentioned front side.

Additional sheet sheathing closes the elements of the metal frame from the side opposite the front side, which increases the sound insulation of the fence and allows it to be used as partitions between the premises of buildings for various purposes.

In FIG. 1 shows a horizontal section of a fragment of a soundproof fence using a single metal frame; in fig. 2 shows a horizontal section of a fragment of a soundproof fence using a double metal frame; in fig. 3 and FIG. Figure 4 shows the experimental frequency characteristics of sound insulation, showing an increase in the sound insulation of the patented fence compared to the analogous design.

The soundproof enclosure is made of sheet 1, fixed on a frame of metal profiles 2 on the front side 3, and on the opposite side 4.

Sheet sheathing 1 is fixed with steel self-tapping screws 5. Thin-walled galvanized steel profiles are used as frame profiles. The cross-sectional dimensions of the frame profiles can be different, depending on the requirements for the strength and stability of the fence. The frame can be single or double, depending on the requirements for the strength and stability of the fence. Rectangular elements 6 are fixed between frame profiles 2 to sheet sheathings 1 with steel self-tapping screws 5. At the same time, a layer of elastic material 7 is located between the elements 6 and sheet sheathings 1.

The installation sequence of the soundproof fence is as follows. Frame profiles 2 are mounted between the premises of the building. Sheet sheathing 1 is fixed on the frame from the front side of the fence 3 with steel self-tapping screws 5. Rectangular elements 6 are fixed between the frame profiles 2 to sheet sheathing 1 with steel self-tapping screws 5. At the same time, between elements 6 and sheet sheathing 1, a layer of elastic material 7. The frame is sheathed with additional sheet sheathing 1 on the opposite front side of the fence 4, steel self-tapping screws 5. The joints between the sheet sheathing 1 are filled with putty and leveled. Further finishing of the fence (painting, pasting with decorative materials) is carried out at the request of the operating organization.

Elements 1 and elements 6 are made from sheet materials: for example, from gypsum-fiber sheets (GVL), gypsum boards (GCR), etc., and may have different thicknesses. The elastic material layer 7 can be made of various materials, such as polyester fiber mats, mineral wool mats, fiberglass mats, etc., and can have different thicknesses.

Figure 3 and figure 4 shows the frequency characteristics of sound insulation, which were obtained by experimental measurements in the reverberation chambers of the acoustics laboratory NNGASU (Large acoustic chambers, the volume of the high-level chamber V _KVU =259 m ³ , the volume of the low-level chamber V _KNU = 211 m ³ , test opening area S=10.5 m ² ), in accordance with the requirements of GOST 27296-2012.

In FIG. 3 graph number 9 shows the sound insulation of a patented soundproof fence with a single frame, with elements 6 having a thickness of 12.5 mm (GVL) and a layer of elastic material 7 having a thickness of 4 mm (polyester fiber mat), with sheet sheathing 1 of GVL 12.5 mm thick, with 83.5 mm air gap thickness. Graph number 8 shows the soundproofing of an analogue structure.

In FIG. 4, graph number 10 shows the sound insulation of a patented soundproof fence with a double frame, with elements 6 having a thickness of 12.5 mm (GVL) and a layer of elastic material 7 having a thickness of 4 mm (polyester fiber mat), with sheet sheathing 1 of GVL 12.5 mm thick, with an air gap thickness of 88.5 mm. Graph number 8 shows the soundproofing of an analogue structure.

Based on the results of the measurements, airborne noise insulation indices (R _w , dB) for the considered soundproof fences were determined:

1) soundproof enclosure (partition) with a single frame of metal profiles (Fig. 1): R _w1 =47 dB;

2) soundproof enclosure (partition) with a double frame of metal profiles (Fig. 2): R _w2 =50 dB;

3) soundproofing fence-analogue: R _{w (analogue)} =36 dB.

In accordance with clause 9.2, table. 2 SP 51.13330 "Protection from noise" a patented soundproof fence (partition) with a single frame made of metal profiles (Fig. 1) can be used:

1) in residential buildings - as partitions without doors between rooms (R _wreq ≥ 43 dB); partitions between the kitchen and the room in the apartment (R _wreq ≥ 43 dB); partitions between a bathroom and a room of one apartment (R _wreq ≥ 47 dB);

2) in administrative buildings and offices - as partitions between offices and separating offices from working rooms ( _Rwreq ≥ 45 dB).

In accordance with paragraph 9.2, Table 2 of SP 51.13330 "Protection from noise", a patented soundproof fence (partition) with a double frame of metal profiles (Fig. 2) can be used:

1) in residential buildings - as partitions without doors between rooms (R _wreq ≥ 43 dB); partitions between the kitchen and the room in the apartment (R _wreq ≥ 43 dB); partitions between a bathroom and a room of one apartment (R _wreq ≥ 47 dB);

2) in administrative buildings and offices - as partitions between offices and separating offices from work rooms ( _Rwreq ≥ 45 dB);

3) in administrative buildings and offices - as partitions between the offices of various organizations (R _wreq ≥ 48 dB).

Analyzing the measurement results presented in Fig. 3, the following conclusions can be drawn:

1) a soundproof enclosure (partition) with a single frame made of metal profiles (Fig. 1) provides the required sound insulation values in the normalized frequency range from 125 Hz to 3150 Hz. Airborne sound insulation index is R _w1 =47 dB;

2) the sound insulation of the patented soundproofing fence with a single frame exceeds the sound insulation of the analog structure by 1 dB to 23 dB in the frequency range from 125 Hz to 5000 Hz;

3) the increase in the airborne sound insulation index of the patented soundproof fence (partition) in comparison with the analogue fence is: ΔR _w =R _w1 - R _{w (analogue)} =47 dB - 36 dB=11 dB.

Analyzing the measurement results presented in figure 4, we can draw the following conclusions:

1) a soundproof enclosure (partition) with a double frame made of metal profiles (Fig. 2) provides the required sound insulation values in the normalized frequency range from 100 Hz to 3150 Hz. Airborne sound insulation index is R _w2 -50 dB;

2) the sound insulation of the patented soundproofing fence with a single frame exceeds the sound insulation of the analog structure by 1 dB to 24 dB in the frequency range from 100 Hz to 5000 Hz;

3) the increase in the airborne sound insulation index of the patented soundproof fence (partition) compared to the analogue fence is: ΔR _w =R _w2 - R _{w (analogue)} =50 dB - 36 dB=14 dB.

The achievement of the technical result is ensured as follows:

1) the increase in sound insulation of the patented soundproof fence is provided by reducing the resonant sound transmission in the normalized frequency range from 100 Hz to 3150 Hz. This result is achieved by fixing additional sheet skins on the side opposite the front side of the soundproof enclosure;

2) a patented soundproof enclosure (partition) with a single frame made of metal profiles (Fig. 1) ensures compliance with the regulatory requirements of SP 51.13330 "Protection from noise" for sound insulation (the value of the airborne noise insulation index R _w , dB) when used as the following types of enclosing building structures:

2.1) in residential buildings - as partitions without doors between rooms (R _wreq ≥ 43 dB); as partitions between the kitchen and the room in the apartment (R _wreq ≥ 43 dB); as partitions between a bathroom and a room of one apartment (R _wreq ≥ 47 dB);

2.2) in administrative buildings and offices - as partitions between offices and separating offices from working rooms (R _wreq ≥ 45 dB);

3) a patented soundproof enclosure (partition) with a double frame made of metal profiles (Fig. 2) ensures compliance with the regulatory requirements of SP 51.13330 "Noise protection" for sound insulation (the value of the airborne noise insulation index R _w , dB) when used as the following types of enclosing building structures:

3.1) in residential buildings - as partitions without doors between rooms (R _wreq ≥ 43 dB); as partitions between the kitchen and the room in the apartment (R _wreq ≥ 43 dB); as partitions between a bathroom and a room of one apartment (R _wreq ≥ 47 dB);

3.2) in administrative buildings and offices - as partitions between offices and separating offices from work rooms ( _Rwreq ≥ 45 dB); as partitions between offices of different organizations (R _wreq ≥ 48 dB).

Claims (1)

Soundproof enclosure made of sheet sheathing, fixed on a frame of metal profiles on the front side, with rectangular-shaped elements, made of sheet material, fixed to the sheet sheathing through a layer of elastic material, characterized in that additional sheet sheathing is attached to the frame elements from the side, opposite said front side.

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