As comfort levels regarding noise disturbance are gradually set higher and higher, the need increases for efficient solutions reducing the structure-borne noise generated at elevator shafts. Lift cabins tend to go faster, especially in high-rise buildings, thereby increasing the structure-borne noise/vibration energy that is transferred to adjacent spaces, where it is reradiated by the shaft wall as noise. As this noise is not constant but occasional, it leads to disturbance, especially during sleep. This type of disturbance can be treated in a fairly easy manner, by introducing appropriate resilient materials at the fixations of the guiding rails. It is indeed generally best to intervene as close as possible to the source, here being the rolling of the cabin wheels over the guiding rails. By resiliency decoupling the guiding rails in an engineered way, reductions up to 10 dB are possible. This paper describes the measurement campaign organized at CDM using a physical model, thereby showing the influence of certain parameters such as resilient material type and thickness, location of the resilient cut, etc.
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