摘要
The scope of this study is to investigate flanking noise transmission through joints between prefabricated concrete elements in Hellenic school buildings;such joints apparently are non-existent in the wholesome structure of ordinary concrete buildings.Sound insulation measurements were carried out in two prefabricated concrete buildings of the cell type;the latter involves demountable/reusable concrete elements(the cells);in this case,apparently,flanking noise transmission at joints,may be even more pronounced.A sample of seventeen fa?ade and interior partitions of classrooms was tested.Sound insulation was also predicted based on classical theory.Analysis of the measured data confirms,by and large,the satisfactory sound insulation performance of the test partitions,with the exception of composite partitions which involve door and window openings.The latter were identified to be a major source of sound insulation deterioration.The importance of meticulous sealing of joints is demonstrated.
