| 摘要 |
FIELD: construction. ^ SUBSTANCE: device for noise protection comprising inner and outer screens, acoustic panels connected to support stands installed on support base with a certain interval. Screens are made with identical height, besides inner screen is assembled of ""-shaped metal profiles installed one onto another, between support stands and attached to them via vibration-damping gasket. Outer screen is also assembled and represents a set of metal profiled sheets with perforation fixed simultaneously to support stands, with their overlapping, and to ""-shaped profiles of inner screen. Space between screens and stands in the form of parallelepiped is filled with sound-absorbing filler. Support stand represents double tee in section with metal plates welded along its whole length and at both sides for fixation of ""-shaped profiles. In the basement the stand comprises support plate with stiffening ribs and holes for fixation to support foundation. Support base is arranged in the form of point foundation for each support stand and is equipped with anchor bolts. Protective plate is installed into space between supports. On top device comprises canopy that covers acoustic panels and stands. ^ EFFECT: improved protection of residences from acoustic pollution. ^ 6 cl, 5 dwg |
