Floor impact sound insulation of wooden three-story school building for full-scale fire experiment

摘要

"The Act for Promotion of Use of Wood in Public Buildings" was promulgated in October 2010. Among the public buildings, there arises a tendency to employ wooden construction for school buildings, because it is effective to improve the educational environments such as stress relief. However three-story school buildings shall be fireproof buildings in Japan, it becomes the problem of the spread of the wooden building. Then, wooden three-story school (specimen) of one-hour quasi-fireproof buildings construction was constructed as part of the research of the review of building code, and the full-scale fire experiment was done. This wooden building consisted of two independent zones of framework construction and wood-frame construction. In the meantime, the floor impact sound insulation of wooden construction is generally lower than of concrete construction. Thereby it is expected that the floor impact sound insulation becomes a problem. Therefore the floor impact sound insulations were measured in the wooden three-story school building. The results showed that the floating floors improved the floor impact sound insulation in wooden construction. In addition, the effectiveness of the ceiling specification and floating floors were investigated.