Laboratory Studies of Protection against Propagation of Impact Noise from Staircases
Invited paper
Building Research Institute
Tuesday 2 june, 2015, 17:00 - 17:20
Auditorium 2 (592)
Abstract:
Reducing the propagation of impact and structure-borne sound from the stairwell to the adjacent
protected areas requires the application of special protection in the form of flexible mounting the staircase
elements (as landings and flights of stairs) in the construction of the building. The elastic interlayers used
for separating the construction should be specified by the acoustic properties based on laboratory tests.
Unfortunately, there are no international standards for this kind of measurements.
In Acoustic Laboratory of ITB, number of solutions of acoustic protection of staircases have been
investigated. The study has used a standardized method of measuring the sound impact level and has
been conducted on the models of parts of a staircase in a 1:1 scale, without and with anti-vibration
protection. Applying the method of testing similar to the test methods for floating floors, ΔLw indicators
determining impact sound reduction of particular solutions (flexible mounting of landing in the wall and
flexible supports of the stair flights at the landings) have been determined. In studies, the different load of
the staircase elements, leading the various tensions in the elastic interlayer, have been taking into account.