| Keywords |
Heavy-weight floor impact sound ; Shear wall structure ; Flat plate structure ; Apartment building ; Slab thickness ; Floor area |
| Abstract |
Notification 2015-727 of MOLIT (Ministry of Land, Infrastructure and Transport) has recently come into effect. One of the main contents is a regulation of floor impact sound according to the floor area. In order to investigate the validity of it, field measurement and evaluation of the heavy-weight floor impact sound levels were carried out according to the floor area of livingroom of 84 households in consturction sites of apartment buildings. Measured apartment buildings have floor slabs 180 mm and 210 mm thick of shear wall structure and 250 mm thick of flat plate structure. And, the differences of floor impact sound level distributions between construction sites and those in one site of apartment buildings of which the slabs are 210 mm thick were compared respectively. The result of this study shows that the difference of single number quantities tends to be larger according to the increase of floor area and thickness. The differences of single number quantities between construction sites were relatively larger than those in one site. |