CN-121992897-A - Residence household wall based on ALC board and sound insulation construction method thereof

Abstract

The invention discloses a residence household wall based on an ALC board and a sound insulation construction method thereof. The household wall comprises a base layer wall body formed by directly splicing and jointing a plurality of autoclaved aerated concrete slabs with the thickness of 70-80 mm, wherein sealing materials are not contained at the splicing position, supporting frames are respectively arranged on two opposite sides of the base layer wall body, a cavity layer with the thickness of 50-70 mm is formed between each supporting frame and the base layer wall body, rock wool with the thickness of 25-40 mm and the density of 35-45 kg/m < 3 > is arranged in the cavity layer, and at least two gypsum boards installed by staggered seams are fixed on the outer sides of each supporting frame. According to the invention, through systematic parameter optimization of the multiple mass-spring-mass sound insulation structure, the sound insulation performance index of Rw+Ctr is more than or equal to 50dB can be stably achieved under the condition that the joint is not required to be subjected to sealing treatment, the traditional sealing and gluing process is omitted, the problem of sound insulation degradation caused by ageing and invalidation of the sealing glue is avoided, and the technical effects of reasonable structure parameters, convenience in construction, controllable cost and long-term stability of sound insulation performance are realized.

Inventors

• ZHANG YAOLIN
• WU BO
• CAO CHANG
• CHANG MINGYUAN
• YANG JINJIE
• LI KEJUN
• BAI YUZHU
• XIE HUI
• ZHANG RONG
• LIU HANZHI
• TIAN LE

Assignees

• 中建科工集团有限公司

Dates

Publication Date

20260508

Application Date

20260317

Claims (10)

1. 1. The residence household wall based on the ALC plate is characterized by comprising a base wall body, wherein the base wall body is formed by splicing a plurality of autoclaved aerated concrete plates with the thickness of 70-80 mm, adjacent autoclaved aerated concrete plates are in direct butt joint, the butt joint between the adjacent autoclaved aerated concrete plates does not contain sealing materials, supporting frames are respectively arranged on two opposite sides of the base wall body, a cavity layer with the thickness of 50-70 mm is formed between each supporting frame and the base wall body, rock wool is arranged in the cavity layer, the thickness of the rock wool is 25-40 mm, the density of the rock wool is 35-45 kg/m < 3 >, at least two layers of gypsum plates are fixed on one side, far away from the base wall, of each supporting frame on the same side, and the gypsum plates on different layers are installed in a staggered joint.
2. 2. The ALC-plate-based residential divider wall according to claim 1, wherein the cavity layers on both sides of the base wall have the same thickness, and the cavity layers on both sides are symmetrically disposed with respect to the base wall.
3. 3. The ALC-plate-based residential divider wall according to claim 2, wherein the thickness of the autoclaved aerated concrete slab is 75mm, the thickness of the cavity layer formed between the supporting frame and the base wall on each side is 55mm, the thickness of the rock wool is 32mm, and the density is 40kg/m3.
4. 4. The ALC-plate-based residential wall according to claim 3, wherein two layers of the gypsum plates are fixed on one side of each side of the supporting frame far away from the base wall, and the thickness of each layer of the gypsum plates is 12.5mm.
5. 5. The ALC-plate-based residential partition wall according to claim 1, wherein a plurality of supporting frames are respectively arranged on two sides of the base wall, the supporting frames on the same side are distributed at intervals along the length direction of the base wall, and each supporting frame is a light steel keel frame.
6. 6. The ALC-plate-based residential wall according to claim 5, wherein the light steel joist skeleton is a C-shaped light steel joist, the C-shaped light steel joist comprises a web, a first flange and a second flange positioned on two sides of the web, the base wall and the rock wool are respectively fixed on two opposite sides of the first flange, an equidistant gap is reserved between the rock wool and the base wall, and the at least two layers of gypsum plates are fixed on one side of the second flange away from the base wall.
7. 7. The ALC-board-based residential divider of claim 6, wherein a rubber pad is fixedly disposed between the at least two gypsum boards and the second flange.
8. 8. The ALC-plate-based residential divider wall according to claim 1, wherein the autoclaved aerated concrete slab is a prefabricated plate subjected to drying treatment, and the water content inside the prefabricated plate is not higher than 20%.
9. 9. A method of constructing a sound insulation for a residential division wall based on ALC-plates as claimed in any one of claims 1 to 8, comprising the steps of: S1, vertically mounting autoclaved aerated concrete plates with the thickness of 70-80 mm at the positions of the household walls, wherein adjacent autoclaved aerated concrete plates are in butt joint by adopting direct butt joints, and sealing filling treatment is not performed at the butt joints to form a base wall; S2, building supporting frames on two opposite sides of the base layer wall, and forming a cavity layer with the thickness of 50-70 mm between each supporting frame and the base layer wall; S3, rock wool with the thickness of 25-40 mm and the density of 35-45 kg/m < 3 > is respectively filled in the cavity layers at the two sides; S4, fixing at least two layers of gypsum boards on the outer side of the supporting frame on each side, and ensuring staggered joint installation among the gypsum boards on different layers on the same side.
10. 10. The sound insulation construction method according to claim 9, further comprising, before step S1, standing and drying the autoclaved aerated concrete slab in a ventilated environment until the water content is not higher than 20%, and after step S4, further comprising, caulking the joints between the gypsum boards located on the same layer, and constructing a finishing layer on the outer surface of the gypsum board of the outermost layer.

Description

Residence household wall based on ALC board and sound insulation construction method thereof Technical Field The invention relates to the technical field of building construction, in particular to a residential separate wall based on an ALC plate and a sound insulation construction method thereof. Background In modern houses, particularly steel structure residential buildings, the household wall not only needs to meet strict fire and fire resistance regulations, but also needs to meet high-standard sound insulation performance requirements. Autoclaved aerated concrete plates (ALC plates) are widely applied to the wall bodies of the building household walls due to the excellent fireproof performance and light weight characteristics. However, due to the limitation of mass law, the sound insulation performance of a single ALC board wall body is difficult to reach the high standard requirement. In order to improve the overall sound insulation effect of the wall, the current common practice is to add an inner wall body composed of light steel keels, gypsum boards and sound absorption materials (such as rock wool) on two sides of the ALC board. But the specific construction parameters of the interior wall (such as the thickness of the air layer, the number and type of layers of gypsum board, the density and specification of the sound absorbing material, etc.) have a great influence on the final sound insulation effect. Due to the lack of systematic parameter optimization, the existing method often has the problems of blind material stacking and high cost. More prominently, in the traditional construction process, in order to prevent sound wave from penetrating, the seam between adjacent ALC plates must be subjected to strict sealing and gluing treatment. The gap sealing process is complex, the construction efficiency is greatly reduced, and the problems of poor sealing, aging failure of later sealant and the like easily occur in actual engineering, so that the sound insulation performance of the wall body is seriously reduced. Disclosure of Invention The invention mainly aims to provide a residence household wall based on an ALC plate and a sound insulation construction method thereof, so as to solve the technical problems. The invention provides a residence household wall based on an ALC (aluminum-cement-concrete) plate, which comprises a base wall body, wherein the base wall body is formed by splicing a plurality of autoclaved aerated concrete plates with the thickness of 70-80 mm, adjacent autoclaved aerated concrete plates are directly spliced and butted, the spliced part between the adjacent autoclaved aerated concrete plates does not contain sealing materials, supporting frames are respectively arranged on two opposite sides of the base wall body, a cavity layer with the thickness of 50-70 mm is formed between each supporting frame and the base wall body, rock wool is arranged in the cavity layer, the thickness of the rock wool is 25-40 mm, the density of the rock wool is 35-45 kg/m < 3 >, at least two layers of gypsum plates are fixed on one side, far away from the base wall, of each supporting frame on the same side, and different layers of gypsum plates on the same side are installed in a staggered way. The invention further provides a sound insulation construction method of the residence household wall based on the ALC board, which comprises the following steps of S1, vertically installing autoclaved aerated concrete plates with the thickness of 70-80 mm at the positions of the household wall, abutting the autoclaved aerated concrete plates by adopting direct abutted joints, wherein sealing and filling treatment is not carried out at the abutted joints to form a base layer wall, S2, building supporting frames on two opposite sides of the base layer wall, forming a cavity layer with the thickness of 50-70 mm between each supporting frame and the base layer wall, S3, respectively filling rock wool with the thickness of 25-40 mm and the density of 35-45 kg/m < 3 > in the cavity layers on two sides, and S4, fixing at least two layers of gypsum boards on the outer side of each supporting frame, and ensuring staggered installation between the gypsum boards of different layers on the same side. The residential separate wall based on the ALC plate has the beneficial technical effects that the multi-mass-spring-mass sound insulation structure of a multi-layer gypsum plate-air/rock wool layer-ALC plate-air/rock wool layer-multi-layer gypsum plate is formed by carrying out systematic cooperative optimization on structural parameters of a base wall body formed by autoclaved aerated concrete plates with the thickness of 70-80 mm, cavity layers with the thickness of 50-70 mm at both sides, rock wool with the thickness of 25-40 mm and the density of 35-45 kg/m < 3 > and gypsum plates installed by at least two staggered seams at both sides. The base wall body and the multi-layer gypsum boards on two sides form three qu