CN2283093Y

CN2283093Y - Light sound-proof wall plate

Info

Publication number: CN2283093Y
Application number: CN 96216007
Authority: CN
Inventors: 张增寿; 张文才; 彭荣
Original assignee: BEIJING ACADEMY OF ARCHITECTURAL MATERIAL SCIENCES
Current assignee: BEIJING ACADEMY OF ARCHITECTURAL MATERIAL SCIENCES
Priority date: 1996-08-01
Filing date: 1996-08-01
Publication date: 1998-06-03
Anticipated expiration: 2006-08-01

Abstract

The utility model discloses a structure for a light sound-proof wall plate. The utility model adopts a sandwich structure with double air layers; core materials adopt air inflating gypsum or analogs of an opencelled structure; two surface layers choose gypsum plates or GRC plates with unequal thickness; the core materials are suspended between the two surface layers. The surface density of the sound-proof wall plate of the utility model is less than 45 kg/ m< 2 >, and the air sound insulation indexes of the utility model meet the requirements of 'JG11-82 sound-proof standards for dwelling houses'.

Description

The light sound-insulation wallboard

The utility model relates to the structure design category of the combined wall board that the non-bearing inner wall of building uses, and specifically, relates to the structure design category of the sound insulation wallboard that non-bearing locellus wall or party wall use.

As everyone knows, sound, light, heat, vapour have constituted the physical environment of architecture indoor jointly, and bad indoor acoustic environment had both influenced people's work efficient, can't ensure people's rest quality again.Interior wall is an importance of control room noise, and the air sound reduction index Ia of interior wall is the important indicator of the indoor sound environment quality of internationally recognized evaluation.China has stipulated the Ia value of party wall: one-level 50dB in " JGJ11-82 dwelling house sound insulation standard "; Secondary 45dB; Three grades of 40dB.

At present at home and abroad, particularly at Japan, North America, European Region, the sound-proof wall practice of locellus wall and party wall mainly adopts the lightgage steel joist composite plate, sound absorption material is imitated in interior raising, this class sound-proof wall practice is as long as structure is reasonable, all more than 45dB, the most frequently used practice is to fill out rock wool in the outer paster surface gypsum board of lightgage steel joist to air sound reduction index Ia value.Because this sound-proof wall practice cost is higher, is difficult to enter the normal domestic house market in China.What China was used for the non-bearing interior wall mainly contains sand-lime carbonified board, gypsum perlite batten, GRC perlite batten etc., the main feature of these wallboards is that wall is thin, light weight, high-strength, surfacing, construction are fast, but because the Ia value all is lower than dwelling house sound insulation standard, thereby in the use of party wall, be restricted.

It is cheap that the purpose of this utility model will design a kind of cost of material exactly, can satisfy the difficult a kind of light sound-insulation wallboard that requires of dwelling house sound insulation mark again.

Realize that concrete structure design of the present utility model is:

Adopt two air layer sandwich structures, core [1] adopts the inflation gypsum or the similar item of open-celled structure, purpose is to utilize the air space acoustic vibration that decays, utilize the sound absorption of open-celled structure inflation gypsum, avoid the standing wave effect of sound wave in air layer, the lateral propagation of decay air in cavity, two surface layers [2] are selected gypsum plank or GRC plate for use, surface thickness is unequal, causes resonance to avoid coincidence effect.Rib inboard, two limits at this sound insulation wallboard is provided with the spill locating slot, and the inflation gypsum core of open-celled structure or similar item fix in the spill locating slot of edges of boards rib inboard, guarantee that core is suspended between two surface layers.Distance between the rib inboard, two limits of sound insulation wallboard is controlled between the 800-900mm, to reduce the overhead speaker influence of the thing that is rigidly connected as far as possible.In two limit ribs outsides, an end design of section is the spill tongue-and-groove, and other end design of section is the convex tenon, and in section is the limit shaft of rib of convex tenon a paper core [3] is set, and is used to arrange cable tubing.Avris at two surface layers leaves key of joint.Adopt the light sound-insulation wallboard of the utility model design, surface density is at 45Kg/m ²Below, its air sound reduction index all meets " JGJ11-82 dwelling house sound insulation standard " requirement, for locellus wall and party wall have been developed new product.Enlarged the range of application of plastering.

Description of drawings:

Fig. 1, light sound-insulation wall plate structure phantom drawing;

The side cutaway view of Fig. 2, light sound-insulation wallboard;

The top plan view of Fig. 3, light sound-insulation wallboard.

Among the figure: the 1-core; The 2-surface layer; 3-paper core barrel.

Claims

1, a kind of light sound-insulation wallboard, it is characterized in that the light sound-insulation wallboard adopts two air layer sandwich structures, two surface layers are selected unequal gypsum plank of thickness or GRC plate for use, adopt the inflation gypsum core or the similar item of open-celled structure to fix in the spill locating slot of edges of boards rib inboard, guarantee that core is suspended between two surface layers.In section is the limit shaft of rib of convex tenon, a paper core is set,