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Base isolation is well known within the seismic community as a means of protecting buildings from earthquake damage. A related technique, also known as base isolation, is known to the noise and vibration community as a means of limiting the disturbance in buildings caused by ground-borne vibration, such as that caused by busy roads or railways. Despite extensive use of the technique, there remains a lack of understanding over certain aspects of base-isolation performance.

This paper considers current practice in base-isolation design against ground-borne vibration, and presents some initial work that highlights the significance of soil-structure interaction when assessing isolation performance.

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