Double-layer hollow concrete slab wall and its construction method

Abstract

The invention relates to a double-layer hollow concrete wall and a construction method thereof and relates to the technical field of concrete members. The wall and the method aim at solving the problem that template overlapping is inconvenient in construction of sandwich wall pouring construction, a part of support pieces and template members are permanently closed in the cavity and become acoustic bridges, the sound insulation effect is affected, and the material utilization rate is reduced. The concrete wall is formed by connecting a plurality of construction units. Each construction unit comprises two concrete plates arranged in parallel at intervals and two ring beams arranged between the two concrete plates. The concrete plates and the ring beams form an enclosed cavity. Each ring beam is composed of a prefabricated plate interlayer connected between the concrete plates and a concrete member poured on the concrete plates. The construction method adopts step-by-step pouring, the two concrete plates which are arranged in parallel are poured in advance, the prefabricated plate interlayer is connected between the concrete plates and is utilized as a base mould to pour the ring beams, and the steps are conducted repeatedly to enable the concrete plates and the ring beams to form the closed cavity and obtain the double-layer hollow concrete wall.

Description

Technical field [0001] The invention relates to the technical field of concrete members, in particular to a double-layer hollow concrete slab wall and a construction method thereof. Background technique [0002] With the rapid development of urban construction and the improvement of people's quality of life, it has become an urgent desire for people to create a high-quality residential environment. Among them, a good indoor acoustic environment is an important part of ensuring a high-quality residential environment. [0003] In order to obtain a good indoor acoustic environment, the walls of buildings need to have good sound insulation performance, which is mainly achieved by isolating indoor and outdoor air. At present, the following measures are taken to reduce sound and noise of walls. One is to strengthen the treatment of wall gaps; the other is to increase the density and thickness of the wall; and the third is to use sandwich walls with air interlayer or porous materials. Am...

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Problems solved by technology

[0005] For the existing sandwich wall pouring construction, it is inconvenient to set up the formwork. After the concrete pouring is completed, some supports and formwork members are permanently enclosed in the cavity and become a sound bridge, which not only affects the sound insulation effect of the sandwich wall, but also reduces The problem of the utilization rate of construction materials, the purpose of this invention is to provide a kind of double-layer hollow concrete slab wall and its construction method, utilize the prefabricated slab interlayer connected between the double-layer concrete slabs as the bottom formwork of the ring beam, and remove the formwork Finally, there is no support or formwork that can become a sound bridge in the cavity, which can meet the sound insulation requirements and facilitate construction

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