| 摘要 |
A styrofoam panel for insulating noise between floors and a sound-absorption and sound-insulating structure thereof is provided to reduce solid-borne sound effectively by forming sound-absorbing grooves on a lower plate, and noise guide voids on blocks between the sound-absorbing grooves. A styrofoam panel for insulating noise between floors comprises lower and upper plates. The lower plate includes a sound-absorbing grooves and blocks. The sound-absorbing grooves are formed lengthwise and crosswise on the lower plate. The blocks are formed between the sound-absorbing grooves regularly. The block comprises noise guide voids guiding solid-borne sound transferred to the lower plate to the sound-absorbing grooves to die away. The noise guide voids has different depth so that solid-borne sound transferred through the voids crash each other, swirls and resonate in the noise guide void. |
