Vibrations due to sound fields in a sensitive building. Damage criterion for the noise level
- Autores: Luis Santos Lopes, Jorge Patricio, F. Schiappa de Azevedo, Fernando Aristides Chaves
- Localización: Tecniacústica 2008: conferencias y comunicaciones de Acústica 2008. V Congreso Ibérico de Acústica y Tecniacustica 2008; 39.º Congreso Español de Acústica. Coímbra, Portugal. octubre, 2008, 2008
- Idioma: inglés
- Enlaces
-
Resumen
The traditional buildings damage criteria for vibrations usually suppose ground borne vibration, although the limiting figures may also be used when vibrating mechanical equipments are installed on upper floors other than the ground floor. Also, noise and vibration limits are usually dealt with independent standards and regulations, as if noise and vibration were quite independent phenomena. In some cases, vibration of building elements produces noise. In the manner, sound or noise emitted inside buildings makes their partitions and structural elements vibrate. This paper relates a case study developed in a sensitive building made of steel and brick, a former power station now converted in a popular electricity museum. The study aimed the determination of such a noise level limit to be imposed on any music sound equipment operating inside this sensitive building larger room, in order to avoid damaging vibrations in the building facades. Also, vibration velocity limits were drawn from this study considering the damage limits established by current building vibrations standards and the experience of the authors. For this specific case, relationship between noise levels and vibrations on walls were experimentally prescribed.
