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Proceedings Paper

An experimental study of vibration attenuation performance of several on-grade slab configurations
Author(s): H. Amick; N. Wongprasert; J. Montgomery; P. Haswell; D. Lynch
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Paper Abstract

There are several instances in the literature in which particular positions are taken regarding the nature of the floor supporting sensitive equipment such as advanced electron microscopes. Assertions are made that one methodology is better than another at reducing vibrations. However, very little experimental evidence has been provided to support those positions. This paper presents the results of an experimental in situ study of several slab configurations at a single location-the site of a nanotechnology facility that was about to be constructed at the University of Alberta. Three configurations were constructed: (a) a large solid slab of moderate thickness; (b) a smaller slab "island" of greater thickness (900 mm) surrounded by a thinner slab, both resting directly on soil and separated by a gap; and (c) another island of the same dimensions, but resting on four concrete piles. The three locations were instrumented and measurements taken allowing comparison of the performance of these configurations at attenuating ambient vibrations and vibrations due to a nearby heel-drop impulse. The ranking of the three must be based upon excitation type and frequency range of concern.

Paper Details

Date Published: 18 August 2005
PDF: 14 pages
Proc. SPIE 5933, Buildings for Nanoscale Research and Beyond, 59330S (18 August 2005); doi: 10.1117/12.618188
Show Author Affiliations
H. Amick, Colin Gordon & Associates (United States)
N. Wongprasert, Colin Gordon & Associates (United States)
J. Montgomery, Cohos Evamy (Canada)
P. Haswell, Univ. of Alberta (Canada)
D. Lynch, Univ. of Alberta (Canada)

Published in SPIE Proceedings Vol. 5933:
Buildings for Nanoscale Research and Beyond
Hal Amick, Editor(s)

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