1引言窗隔声性能的好坏，直接影响到处于交通干线旁、商业繁华区和厂群混合区等建筑物用户的正常工作、生活和休息。对那些位于高环境噪声区域的建筑物，大面积采光窗往往是透声最薄弱的环节。改善和加强贸的隔声性能，是保证建筑物内声学环境的唯一途径。需要指出的是，那些规 1 Introduction The sound insulation performance of windows has a direct impact on the normal work, life and rest of users of buildings located in the vicinity of the main traffic lines, commercial downtown areas, and mixed areas of factory buildings. For buildings that are located in high ambient noise areas, large-area daylight windows are often the weakest link. To improve and strengthen the sound insulation performance of trade is the only way to ensure the acoustic environment in buildings. It should be pointed out that those regulations