期刊
BUILDING ACOUSTICS
卷 14, 期 3, 页码 203-221出版社
SAGE PUBLICATIONS LTD
DOI: 10.1260/135101007781998910
关键词
Acoustical materials; underground metro stations; acoustical design strategies; computer simulation
类别
资金
- Yuksel Project International Inc. of Ankara, Turkey
The aim of this research is to demonstrate the importance of initial strategies in acoustical design of underground metro stations. The paper searches for practical design solutions by evaluating different materials for providing optimum acoustical conditions in such spaces. Acoustical designs of three metro stations on a new expansion line in Ankara including Sogutozu, Bilkent and ODTU metro stations are presented through computer simulation. Predictions of room acoustical parameters are presented for both platform and ticket office floors in terms of parameters like reverberation time (RT), speech transmission index (STI) and A-weighted sound level (SPL) distribution within spaces. Simulated reverberation times are evaluated in view of legislative requirements. The study confirms the importance of using sound absorbing materials on the ceiling and sidewalls together. The nonwoven material, used behind perforated metal suspended ceilings, has proved effective in reverberation control.
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