Additional sound insulation surface layer system for floor slabs and construction method of additional sound insulation surface layer system

Abstract

The invention relates to the technical field of building construction, in particular to an additional sound insulation surface layer system for floor slabs and a construction method of the system. Thesystem is used for sound insulation transformation of the floor slabs of non-bottom floors of buildings put into use. The system involves new floor slabs erected on the original floor slabs through steel beams and struts. A resonance sound-absorption layer is arranged below the new floor slabs, column feet are arranged at the lower ends of supporting columns, and the column feet comprise cast-in-place pedestals located at the lower ends of the supporting columns and guide walls arranged around the cast-in-place pedestals by a circle. Vibration-isolation rubber mats are plugged between the guide walls and the cast-in-place pedestals, and vibration-isolation rubber blocks are arranged below the cast-in-place pedestals. According to the system, most noise is isolated above the new floor slabs through an overhead structure, and the resonance sound-absorption layer is arranged below the new floor slabs to eliminate low-frequency noise spread from the new floor slabs to the air below. The whole system achieves the effect of isolating full-band noise, it is not needed to pour large-thickness concrete like a floating floor, and sound insulation transformation is allowed to be conducted onthe buildings put into use.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a system for adding a sound-insulating surface layer to a floor slab and a construction method thereof. Background technique [0002] There are high-intensity external sounds and intensive footsteps in audio-visual entertainment places such as movie theaters, and the leakage to the outside is the source of high-intensity noise. Therefore, sound insulation treatment must be carried out for such places to avoid noise leakage and disturbing residents. [0003] Since there is no need for load-bearing, the sound insulation treatment of the ceiling and wall is relatively easy, and light steel keel is usually used to hang the sound insulation board for sound insulation. There are many options for the sound insulation treatment of the floor: for the ground floor, the floor does not need any sound insulation treatment; for the non-ground floor, the floor can be made into a f...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved is: it is difficult to reconstruct the sound insulation of the floor of the non-ground floor of the building that has been put into use. It is impossible to perform sound insulation by transforming the ceiling of the next floor, and it is also impossible to transform the floor into a floating floor.

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