According to the use function, grade and investment scale of the building, it is the primary content of noise control design to determine the indoor noise standard of the building with reference to international or national norms. Usually, concert halls, theaters and other halls require very low indoor background noise. Therefore, the location of these halls is very important and should be as far away from outdoor noise and vibration sources as possible. In addition, it is necessary to investigate, measure and simulate the noise and vibration of the site environment, so as to provide a basis for the sound insulation design of the building envelope of the hall and ensure that the completed hall can meet the predetermined indoor noise standards. The sound insulation design of enclosure structure is divided into two parts: air sound insulation design and solid sound insulation design, both of which include the calculation of sound insulation, the selection of sound insulation materials and the design of sound insulation structure. In addition to theoretical calculation, it is often necessary to measure the sound insulation components in the laboratory or in the field to determine the sound insulation quantity of each frequency band.
Another important content of noise control is to control the noise and vibration sources inside the hall building. These noise and vibration sources, including air conditioning equipment, water supply and drainage equipment, transformers, some lighting equipment, stage machinery equipment, and noise and vibration spread by air and solids in adjacent rooms, will interfere with the silence of the audience hall. Therefore, in the architectural design stage, acoustic consultants must be involved in order to check whether the layout of each room in the building is reasonable and minimize possible noise and vibration interference.
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