SU1308728A1 - Transluscent suspension ceiling - Google Patents

Abstract

The invention relates to building structures, in particular to multifunctional suspended ceilings for halls. The aim of the invention is to improve sound absorption and performance properties. The translucent suspended ceiling consists of a ribbed screen 1 connected to transverse supporting elements of the frame 3 by means of a plate 2 with limbs. The pendants 5 are equipped with traverses 11 for fixing luminaires 12. Over the rebrisses SL

Description

1308728

In addition, a screen is laid with a passing floor, with a co-absorber 8 wrapped in sound, made of two perforated transparent films 9. 1 cp f-ly, plates 7 with sound between them 4 silt.

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The invention relates to building structures, in particular to multifunctional suspended ceilings for halls.

The aim of the invention is to improve sound absorption and performance properties.

Figure 1 shows a fragment of a suspended ceiling, a general view in isometric projection; in fig. 2 - the same, longitudinal section; on fig - section A-A in FIG. 2; in fig. 4 - section bb in figure 2.

The proposed suspended translucent ceiling contains a often-ribbed screen formed of ribbed paired elements 1, mainly of wood, fastened at the ends by bends of plates 2, with the help of which they are hung to the elements of frame 3. The latter, through clamps 4, are attached to height-adjustable hangers 5, I connected to the carriers. Elements 6 of the building.

On the surface of the ribbed screen, bounded by the elements of the frame 3, a layer of sound absorber is laid on its top, which is a layer of mineral wool, dense porous fiber board 8, stacked in bags of acoustic film, placed between two solid perforated fibreboard 7 9, with the perforation area for the plates 7 being the same and at least 8%.

Acoustic studies have shown that the combination of such a sound-absorbing plate enclosed between two solid sheets with the same perforation area and not less than 8% is optimal for sound absorption of the walk-through ceiling.

A mesh face element 10 is laid over the top of the adjacent portions of the ridge screen. The suspended ceiling sections having mesh face plates

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the elements 10 are equipped with cross-arms 11 for fixing linear luminaires 12, the latter being located along the edges of the screen.

The installation of the suspended ceiling is carried out in the following sequence.

The suspensions 5 on the rolling scaffolding fasten and frame the elements of the frame 3 to which the ribbed paired elements 1 are bolted. Then, the lower perforated sheets are rigidly attached to their top, which form the installation floor for the installation of the mesh face element and the installation of sound absorber bags on which the upper perforated sheets are then laid. After performing the above work, using the resulting flooring, auxiliary traverses are bolted to the ceiling hangers to hang bolts and other engineering equipment on them.

The ribbed screen of the suspended translucent ceiling works both as a diffuser, and as a supporting base for walk-through and acoustic flooring, perceiving operational loads from above and possible impacts from below.

The upper perforated sheet forms the ceiling walk-through necessary to ensure the operation of engineering equipment (luminaires, radio equipment, ventilation devices, automatic devices, etc.) located in the upper metalworking space.

The design of the ceiling makes it possible to ensure an optimal protection angle of the electric lighting installation within 40-45 ° by using the rib pitch, which are the diffusers, and the placement of light sources above them.

Placement of linear lamps above the edges of the ceiling and parallel to them

reduces the glare of the lighting installation due to the optimal protective angle, increases the luminous flux entering the room through the fins, contributes to improving the shock protection of luminaires, since the latter are attached to the frame hangers (and not to the fins) and allows for significant. increase the possibility of adjusting the height of the suspension lamps.

In the pass-through areas of the ceiling, sound absorption is provided by the specified sound-absorbing structure by successive attenuation of the sound energy as a result of the resonator effect, i.e. alternately compressing and expanding sound waves as they pass through alternating dense and rarefied layers of the structure.

In a section of the ceiling without a sound absorber, the attenuation of the light energy transmitted through the ribbed screen and reflected from the supporting structure of the coating occurs in reverse order due to the presence of an upper perforated sheet absorbing the first sound reflections.

The presence of such areas allows the combination of lighting and acoustic functions. Due to the uniform sound absorption and its higher coefficient in the mid-frequency range, the acoustic mode in the rooms will be no worse than in the analogue, while reducing the area and thickness of the sound absorber.

The safety and convenience of servicing engineering equipment is provided by free access to various equipment due to the passage surface formed by the upper perforated sheet with alternating mesh face element of the ribbed ceiling screen.

The mesh covering of the light-scattering screen serves to protect the equipment from both possible impacts from the premises (blows from gymnasiums) and from the over-ceiling space (blows from the possible fall of equipment elements during their maintenance).

Exhausting is carried out by removing air through the light-transmitting portions of the ceiling.

ribbed screen and mesh face element.

Sound distribution in the rooms is achieved by placing the loudspeakers above the ribbed screen of the ceiling and between the light sources, and this radio equipment is attached to the suspensions of the ceiling frame via auxiliary traverses.

A reduction in material consumption is achieved by making the screen out of twin-ribbed elements with the exception of the screen frame, reducing the consumption of sound-absorbing material using a double-perforated sound-absorbing structure, reducing the metal consumption due to the arrangement of suspensions, which are the same for the ceiling and luminaries with radio equipment, and the elimination of entrance shields.

The reduction in labor intensity is achieved by reducing the construction volume of the ribbed elements of the ceiling design, especially labor-intensive to manufacture.

The light comfort is significantly improved due to the absence of banding and glare, energy consumption is reduced due to an increase in the efficiency of the lighting installation by increasing the outgoing light flux through the grating screen, and the impact protection of the light sources is increased due to the supra-thermal placement and the protective grid arrangement.

F o rmula of the invention

Claims (2)

1. A translucent suspended ceiling, including a ribbed screen connected to transverse load-bearing elements, a sound absorber and a passage through which, in order to improve sound absorption and performance, the suspended ceiling is formed of alternating sound-absorbing and translucent portions, and the entrance deck is made of paired perforated plates, between which is placed a sound absorber made of solid material. 2. A ceiling according to claim 1, characterized in that the ribbed screen is connected to the transverse supporting elements by means of plates with bends. ir 6 f2 n f 1 17 If // / R1 nGT fO 798 I / figg 6 Aa - to: tgk . Compiled by A. Muzyko Editor A. Shandor Tehred V. Kadar Proofreader E, - Roshko ..... "" ".. - ...-- .." ---- - --- "-" ------ Order 1780/26 Circulation 666 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab, d, A / 5 Production and printing company, Uzhgorod, st. Project, 4 // 5-5 L-5 FIG. four