“水立方”围护结构声学性能研究

国家游泳中心“水立方”采用大面积ETFE膜气枕作为围护结构，ETFE膜气枕的声学性能将直接影响比赛大厅的室内声学设计效果与室内装饰效果。在比赛大厅声学设计过程中，建立了声学测试专项实验室，对ETFE膜气枕的声学性能进行测试，获得了真实详尽的数据。本文对声学实验室的建立、声学性能的测试过程做了较为详细的介绍，对测试结果进行了分析与总结，希望对类似材料构造的声学性能测试提供一些参考资料。

The Acoustic Character Research on the Envelope of "Water Cube"

The envelope of the National Swimming Center adopted the ETFE membrane air cushion, which will affect its competition hall's acoustic character and interior. A laboratory was built to test the acoustic character of ETFE air cushion and gain elaborated acoustic parameter. The paper gives introduction to the setup of the laboratory, the test methods and conditions, analyses the test data and summarizes the acoustic character about the ETFE air cushion in order to provide information on acoustic testing of similar material.