Elastic Isolation

Abstract

The most common solution to problems due to vibration impact into buildings or the ground, is to isolate the machinery, engines or other aggregates from their bearing foundations by spring elements. Applications for this technique, called elastic decoupling, are

• bearing of machinery on single springs to decouple them from the building (Fig.5.1)

• sub-ballast mats for train or subway rails in close vicinity of houses to reduce the vibration impact (Fig. 5.2) and

• the floating concrete floor, nowadays nearly always used in buildings (Fig. 5.3, see also Chap. 8 on transmission loss)