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Transmission of structure-borne sound in buildings above railways

✍ Scribed by S. Ljunggren; S. Ljunggren

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
497 KB
Volume
34
Category
Article
ISSN
0003-682X

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✦ Synopsis

A BSTRA CT This paper deals with transmission of structure-borne sound in buildings in a special case: the sound is assumed to originate from railway traffic and to be transmitted through rock to a building which is built directly on rock'. It is shown that in such situations a major part of the transmission in the building is governed b)' the in-plane waves of the load-bearing structure. This implies that the level decreases comparatively slowly upwards in the buildings: the decrease in a building with load-bearing walls of concrete is generally bl the region of l or 2 dB per store)'. A simple formula, based on the 'Ketten-Leiter' theory, is proposed for estimates.

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