天津茱莉亚学院音乐厅建声设计要点与音质效果  

Architectural acoustics design and acoustics evaluation for Concert Hall of Tianjin Juilliard School

作　　者：余斌 宋拥民 YU Bin;SONG Yongmin(Shanghai Zhangkuisheng Acoustic Engineering Consultant Co.,Ltd.,Shanghai 200086,China)

机构地区：[1]上海章奎生声学工程顾问有限公司,上海200086

出　　处：《声学技术》2024年第4期520-526,共7页Technical Acoustics

摘　　要：在天津茱莉亚学院音乐厅的设计中,为满足室内背景噪声符合NC-15噪声评价曲线的要求,音乐厅采用盒中盒构造,在内盒与外盒之间用大型阻尼弹簧减振器对建筑整体进行隔振,并严格控制暖通空调系统管路噪声。设计大面积可调吸声帘幕,用于对室内混响时间进行调节;均衡布置反射板,局部布设微扩散体,以使室内声场均匀。通过室内音质计算机模拟、声学缩尺模型试验等建声设计手段,以及施工全过程中的声学巡查和指导,音乐厅土建及室内完成质量均达到声学设计要求。音乐厅室内背景噪声满足NC-15噪声评价曲线,可通过吸声帘幕实现音乐厅内中频空场混响时间从约1.45 s调整至2.45 s,调整幅度达到1 s,为国内类似工程的设计和建造提供了参考。In order to meet the requirement of NC-15 noise evaluation curve for indoor background noise in the design of the Concert Hall of Tianjin Juilliard School,the concert hall adopts a box-in-box structure.Between the inner and outer boxes,large damping spring vibration absorbers are used to isolate the entire building,and the noise of the heating,venlitation and air conclitioning(HVAC)system is strictly controlled.Large-area adjustable soundabsorbing drapes are designed for adjusting the reverberation time.The reflection boards are evenly arranged and micro-diffusers are properly placed to ensure a uniform sound field.Through room acoustics simulation,acoustic scale model testing and other architectural acoustics design methods,as well as acoustic inspection and guidance in the whole construction process,the qualities of civil engineering and interior completion of the concert hall all meet the acoustic design requirements.The indoor background noise of the concert hall meets the NC-15 noise evaluation curve,and the mid-frequency unoccupied reverberation time can be adjusted from about 1.45 s to 2.45 s by using sound-absorbing drapes,with an adjustment range of 1s.This provides a reference for the design and construction of similar projects in China.

关 键 词：音乐厅 室内音质 混响时间 可调吸声 

分 类 号：TU112[建筑科学—建筑理论]