Relying on the cavity structure on the side of the H-beam,a super-microporous acoustic absorber integrating decorative and acoustic design is proposed.The super-microporous acoustic absorber is placed in the interior of the steel classroom,and the acoustic performance of the super-microporous acoustic absorber is investigated through the acoustic simulation and field experiments by measuring the acoustic environment conditions before and after the improvement.The results show that the super-microporous acoustic structure with a cavity depth of 150 mm and filled with 50 mm sound-absorbing cotton has better sound absorption performance,and the integrated arrangement scheme can significantly improve the reverberation time and speech intelligibility of the steel-structured classroom and improve the quality of the acoustic environment while achieving the decorative effect of the steel beams.
关键词
教室声环境/钢结构/超微孔吸声体/混响时间/语言清晰度
Key words
classroom acoustic environment/steelwork/ultra-microporous acoustic absorber/reverberation time/clarity of language
维普
万方数据