RU202308U1 - Frameless panel for frameless soundproofing fencing - Google Patents

Abstract

The utility model relates to the field of construction. Frameless panel for frameless soundproofing fencing can be used in residential, public and industrial buildings as: 1) partitions between rooms; 2) acoustic screens around noisy areas; 3) walls of soundproof enclosures for noisy equipment. One of the main tasks of modern construction is the creation of enclosing structures with high soundproofing properties, which provide the required protection against noise in the premises of civil and industrial buildings. At the same time, one of the most important criteria is to reduce the weight and thickness of the fences. This problem can be solved by the use of multilayer structures.

Description

The utility model relates to the field of construction. Frameless panel for frameless soundproofing fencing can be used in residential, public and industrial buildings as: 1) partitions between rooms; 2) acoustic screens around noisy areas; 3) walls of soundproof enclosures for noisy equipment.

One of the main tasks of modern construction is the creation of enclosing structures with high soundproofing properties, which provide the required noise protection in the premises of civil and industrial buildings. At the same time, one of the most important criteria is to reduce the weight and thickness of the fences. This problem can be solved by the use of multilayer structures.

The closest to the claimed one, in terms of the technical essence and the achieved result, selected as a prototype, is a soundproofing fence (utility model patent No. 153758). This fencing is a multi-layer sandwich panel and consists of two outer sheeting, a middle layer of rigid, lightweight, porous material and two separating layers of elastic material. The layers of the fence are glued together. To connect individual panels to each other and attach them to building structures, metal “U-shaped” profiles are provided along the perimeter of each panel, to which external sheet cladding is attached.

The disadvantage of the known soundproofing fencing is the laboriousness of installation due to the large mass of a separate panel, which ranges from 95 kg to 110 kg with a size of 2.5 × 1.2 m, with sheet cladding made of gypsum fiber sheets (GVL) with a thickness of 12.5 mm and a middle layer of foam or hard mineral wool with a thickness of 50 mm to 200 mm.

The technical problem solved by the proposed utility model is the creation of a frameless panel for a frameless soundproofing fence, which provides the required noise protection in civil and industrial buildings and reduces the weight of individual panels to facilitate their manual installation in buildings.

The technical result consists in reducing the labor intensity of installation due to a decrease in the mass of individual panels, due to the elimination of the frame and a 2-fold reduction in the volume of the material of individual vertical elements, while maintaining the required noise protection in the premises of civil and industrial buildings.

The technical result is achieved by the fact that a frameless panel for a frameless soundproofing fence is an external sheet cladding, to the inner surface of which vertical elements of a rigid light material are attached, and steel corners are installed along the perimeter.

Conclusion on the achievement of the result: the use of the utility model allows to reduce the mass of the enclosing structure by 2 times by reducing the mass of the frameless panel: one frameless panel weighs from 48 kg to 55 kg, depending on the thickness (from 50 mm to 200 mm). This weight allows individual frameless panels to be manually assembled by a two-person link. Each frameless panel has its own attachment points to the building structures, while frameless panels located opposite each other (in parallel, in two lines) do not have rigid connections to each other. Separate vertical members of rigid, lightweight material are attached to the inner surface of each frameless panel. When installing a soundproofing fence in a building, vertical elements made of rigid lightweight material of two separate frameless panels, located opposite, are inserted into each other according to the "groove-comb" principle, without forming a single rigid connection with each other. Separate vertical elements of rigid lightweight material in frameless panels provide the necessary strength and stability of frameless panels for frameless soundproofing fences.

On the inner side of the sheet liners, a continuous layer of thin elastic material can be fixed, to which individual vertical elements made of rigid lightweight material are attached (acoustic separation of the layers).

Weight reduction, in comparison with the prototype, is achieved due to: 1) the absence of a steel frame; 2) a 2-fold reduction in the volume of rigid light material, which is made in the form of separate vertical elements, and not in the form of a continuous layer.

Frameless panel for frameless soundproofing fencing is a prefabricated product, only its installation is carried out at the construction site.

After the installation of the frameless soundproofing fence on top of one of the outer sheet claddings of the frameless panels (on one side of the frameless soundproofing barrier), an additional external sheet cladding can be fixed. This makes it possible to further increase the sound insulation of the fence.

The utility model is illustrated by the following figures: FIG. 1 shows a diagram with frameless panels for frameless soundproofing fencing; in fig. 2 is a diagram with frameless panels for frameless soundproofing enclosures with an additional thin elastic layer placed on the inner surfaces of the sheet cladding (acoustic separation of layers); in fig. 3 is a diagram with frameless panels for frameless soundproofing fencing with additional external sheet cladding; in fig. 4 shows the frequency response of the soundproofing of frameless panels for the frameless soundproofing barriers of FIG. 1 and FIG. 2; in fig. 5 illustrates the frequency response of the soundproofing of frameless panels for frameless soundproofing enclosures shown in FIG. 1 and FIG. 3.

A frameless panel for frameless soundproofing fencing (Fig. 1) is an external sheet cladding 1, to the inner surface of which vertical elements 2 made of rigid light material are attached using an adhesive connection 3. Steel corners are installed along the perimeter of the frameless panel 4. Steel dowel-nails 5, steel screws 6 are used to fasten frameless panels to building structures and to connect adjacent frameless panels to each other.

If it is necessary to acoustically separate the outer sheet cladding 1 and individual vertical elements 2 made of rigid lightweight material, the fence can contain a continuous layer of thin elastic material 7, which is attached to the inner surfaces of the outer sheet cladding 1 by means of an adhesive bond 3, to which, in turn, 3 separate vertical elements 2 made of rigid lightweight material are attached by means of an adhesive joint (Fig. 2).

The frameless panel may contain additional outer sheet claddings 8 attached over the outer sheet claddings 1 with steel screws 9, on one side of the frameless soundproofing fence or on both sides of the frameless soundproofing enclosure (Fig. 3).

Frameless panels for frameless soundproofing fencing between two rooms of a civil or industrial building (partition) are mounted as follows. On the walls, floor and ceiling of the room, the installation site of the partition is marked, taking into account the two parallel lines for the installation of separate frameless panels. The first frameless panel of the first line is installed vertically in the corner of the room and attached to the wall, floor and ceiling with steel dowel nails 5 through steel corners 4, which are installed along the perimeter of each individual frameless panel with a pitch of 300 mm. Then, in the same way, the second and subsequent frameless panels of the first line are mounted along the entire length of the room. Adjacent frameless panels of the first line are interconnected with steel screws 6 through steel corners 4, which are installed along the perimeter of each frameless panel with a pitch of 300 mm. After the installation of the first line of frameless panels along the entire length of the room, the installation of the second line of individual frameless panels, parallel to the first line, begins. For this, individual vertical elements 2 made of rigid lightweight material of frameless panels of the first and second lines are inserted into each other according to the groove-comb principle (Fig. 1). In this case, the vertical joints of the individual frameless panels of the first and second lines should have an offset relative to each other of at least 300 mm in order to avoid the through passage of sound waves through the joints. After completing the installation of the second line of individual frameless panels along the entire length of the room, all joints and grooves for fasteners (steel dowel-nails 5, steel screws 6) in the outer sheet cladding 1 of the first and second lines of individual frameless panels are putty and prepared for finishing ( painting, wallpapering, etc.).

External sheet cladding 1 is made of solid sheet materials with a thickness of 10 mm to 30 mm: gypsum fiber sheets (GVL), gypsum plasterboards (GKL), cement-bonded particle boards (DSP), oriented strand boards (OSB) and other materials. Separate vertical elements 2 are made of rigid light material with a thickness of 40 mm to 200 mm, a width of 100 mm: hard mineral wool, rigid materials based on wood fiber, foam, expanded polystyrene and other materials. A thin elastic layer of acoustic isolation 7, located between vertical elements 2 made of rigid lightweight material and sheet cladding 1, is made with a thickness of 2 mm to 5 mm from polyester fiber mats, polyethylene foam and other materials. For interconnecting frameless panels for frameless sound-insulating fencing (sheet cladding 1 with separate vertical elements 2 made of rigid light material; sheet cladding 1 with a thin elastic layer of acoustic isolation 7; separate vertical elements 2 of rigid light material with a thin elastic layer of acoustic isolation 7 ), polymer adhesives are used that provide high adhesion and a rigid connection. Additional outer claddings 8 are made of the same materials as the outer claddings 1.

Experimental studies of sound insulation of the developed frameless soundproof enclosures containing frameless panels were carried out in the reverberation chambers of the Acoustics Laboratory of NNGASU according to the standard method GOST 27296 “Noise protection in construction. Soundproofing of building envelopes. Measurement methods ". The object for measurements was a fence measuring 4.0 × 2.5 m (length × height), consisting of separate frameless panels, each of which consists of the following materials: external sheet cladding made of gypsum-fiber sheets (thickness 12.5 mm, density 1150 kg / m); individual vertical elements made of rigid lightweight material made of hard mineral wool (thickness 50 mm, density 25 kg / m ³ ); a continuous layer of a thin elastic material (acoustic separation of layers) made of mats of elastic material made of polyester fibers (thickness 4 mm, density 75 kg / m ³ ); gluing individual elements of frameless soundproofing fences to each other (sheet cladding 1 with individual vertical elements 2 made of rigid light material; sheet cladding 1 with a thin elastic layer of acoustic isolation 7; individual vertical elements 2 of rigid light material with a thin elastic layer of acoustic isolation 7) carried out with polymer glue; additional external sheet cladding made of gypsum fiber sheets (thickness 12.5 mm, density 1150 kg / m ³ ).

The results of the measurements are shown in FIG. 4, figs. 5. Based on the results of the measurements, the airborne noise insulation indices (R _w , dB) were determined for the following fences:

1) frameless soundproofing fence (partition) made of frameless panels (Fig. 1): R _w1 = 47 dB;

2) frameless soundproofing fence (partition), made of frameless panels with acoustic separation of layers in the form of a continuous layer of thin elastic material 7 (Fig. 2): R _w2 = 48 dB;

3) frameless soundproofing fence (partition) made of frameless panels with additional external sheet cladding 8, fixed on one side (Fig. 3): R _w3 = 49 dB;

4) frameless soundproofing fence (partition), made of frameless panels with additional external cladding 8, fixed on both sides (Fig. 3): R _w4 = 51 dB.

In accordance with clause 9.2, table. 2 SP 51.13330 "Protected from noise" frameless soundproof fences (partitions) made of frameless panels (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 _wrequire ≥47 dB);

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

In accordance with clause 9.2, table. 2 SP 51.13330 "Noise protection" frameless soundproofing fences (partitions) made of frameless panels with acoustic separation of layers in the form of a continuous layer of thin elastic material 7 (Fig. 2) and frameless soundproofing fences (partitions) made of frameless panels with additional external sheet cladding 8, fixed on one side, in addition to the above places, can be used in administrative buildings and in offices - as partitions between offices of various organizations (R _wrequire ≥48 dB).

In accordance with clause 9.2, table. 2 SP 51.13330 "Noise protection" frameless soundproof enclosures (partitions) made of frameless panels with additional external sheet cladding 8 fixed on both sides (Fig. 3), in addition to the above-mentioned places, can be used in hotels with three stars - as partitions between numbers (R _wreq ≥51 dB).

Analyzing the measurement results presented in FIG. 4, the following conclusions can be drawn:

1) frameless soundproofing fence (partition) made of frameless panels (Fig. 1) provides the required sound insulation values in the normalized frequency range from 100 Hz to 3150 Hz. The airborne sound insulation index is R _w1 = 47 dB with a small fence thickness of 75 mm. It can be seen that there is no decrease in sound insulation at the resonant frequency "mass-elasticity-mass" characteristic of sandwich panels in the frequency response of sound insulation. This result is achieved by effectively reducing the resonant transmission of sound during bending vibrations of the outer sheet claddings of frameless panels mounted in two parallel lines that are not rigidly connected to each other. The decrease in sound insulation in the frequency range from 2000 Hz to 5000 Hz is caused by the phenomenon of wave coincidence for external sheet cladding, however, it is located in the high frequency range and does not negatively affect the value of the airborne noise insulation index (R _w , dB);

2) the use of acoustic separation of the layers (a layer of thin elastic material 7 located between the outer sheet cladding and individual vertical elements 2 of rigid lightweight material) - see Fig. 2, makes it possible to further increase the sound insulation of a frameless soundproofing fence (partition) made of frameless panels in the frequency range from 315 Hz to 2000 Hz - by values from 1 dB to 2 dB. The airborne sound insulation index is R _w2 = 48 dB with a small fence thickness of 83 mm. This effect is ensured by reducing the resonant transmission of sound with dissipative losses in a layer of thin elastic material 7. The increase in the insulation index of airborne noise of the fence due to the acoustic separation of layers (Fig. 2) is: ΔR _w = R _w2 -R _w1 = 48 dB - 47 dB = 1 dB.

Analyzing the measurement results presented in FIG. 5, the following conclusion can be drawn:

1) frameless soundproofing enclosure (partition) made of frameless panels with the use of additional external sheet cladding 8, fixed on one side of the panel, provides a significant increase in sound insulation in a wide frequency range from 100 Hz to 5000 Hz - by values from 1 dB to 5 dB ... The airborne sound insulation index is R _w3 = 49 dB with a small fence thickness of 88 mm. This effect is provided due to the shift of the resonant frequency of the "mass-elasticity-mass" system, caused by an increase in the mass of the outer sheet cladding on one side of the fence. The increase in the airborne noise insulation index of frameless soundproofing enclosures (partitions) made of frameless panels, due to the fixing of additional external sheet cladding on one side, is: ΔR _w = R _w3 -R _w1 = 49 dB - 47 dB = 2 dB;

2) frameless soundproofing fence (partition), made of frameless panels using additional external sheet cladding 8, fixed on both sides of the fence (Fig. 3), provides an additional increase in sound insulation in the frequency range from 100 Hz to 200 Hz - by values from 1 dB to 3 dB. The airborne sound insulation index is R _w4 = 51 dB with a small fence thickness of 100 mm. This effect is provided due to an additional shift of the resonance frequency of the "mass-elasticity-mass" system, caused by an increase in the mass of the outer sheet linings on both sides of the fence. The increase in the airborne noise insulation index of frameless soundproofing enclosures (partitions) made of frameless panels by fixing additional external sheet cladding on both sides of the enclosure (Fig. 3) is: ΔR _w = R _w4 - R _w1 = 51 dB - 47 dB = 4 dB.

The achievement of the technical result is ensured as follows:

1) the labor intensity of installing frameless panels for frameless soundproofing fencing (for example, partitions between two rooms in a building) is reduced by reducing the weight of the panels by 2 times compared to the prototype. This result was achieved due to:

1.1) lack of a steel frame;

1.2) reducing by 2 times the volume of rigid light material, which is made in the form of separate vertical elements, and not in the form of a continuous layer;

2) frameless soundproof enclosures (partitions) made of frameless panels ensure compliance with the normative requirements of SP 51.13330 "Noise protection" for sound insulation (value of the airborne noise insulation index R _w , dB) when used as the following types of building envelope:

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 in one apartment (R _wreq ≥47 dB);

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

2.3) in administrative buildings and offices - as partitions between offices of various organizations (R _wrequire ≥48 dB).

2.4) in hotels with three stars according to the international classification - as partitions between rooms (R _wrequire ≥51 dB).

Claims (1)

A frameless panel for a frameless soundproofing fence, characterized by the fact that it is an external sheet cladding, to the inner surface of which vertical elements made of rigid lightweight material are attached, and steel corners are installed around the perimeter.

Images