Building Vibration Assessments and Monitoring (BS6472, BS7385)
BS6472 'Evaluation of Human Exposure to Vibration in Buildings (1 Hz to 80 Hz)' is a primary UK vibration standard used to assess the acceptability of vibration impacting on people. The most common use of BS6472 is for assessing levels of vibration from railways, industry and construction potentially affecting new or existing dwellings.
The standard provides criteria for four categories of buildings which are: critical working areas; residential areas; offices; and workshops areas.
One of the main features of BS6472 is the Vibration Dose Value (VDV) parameter. Vibration Dose Values are used to assess levels of vibration. An estimated VDV called eVDV can also be used in some cases.
The standard provides VDV criteria which are used to predict the likelihood of adverse impact for daytime and night-time periods.
BS7385: 'Evaluation and measurement for vibration in buildings. Guide to damage levels from groundborne vibration' is the other primary standard used to assess the likelihood of vibration causing building damage.
This standard uses Peak Particle Velocity (ppv) as a measure of vibration and compares it to criteria for cosmetic, minor and major potential damage.
The Control of Vibration at Work Regulations 2005 is used to assess acceptable levels of vibration for workers.
It is similar in concept to the Control of Noise at Work Regulations in that it considers the impact of a 'dose' of vibration upon staff.
The standard sets out criteria for both hand-arm and whole body vibration.
Blue Tree Acoustics can also measure and design for high tech locations where vibration is critical. These include hospitals and data centres where microscopes, computers, servers and machines must be kept in a low vibration environment.
Blue Tree Acoustics can offer all of the above assessments and have in-house vibration monitoring equipment which allows monitoring of acceleration, velocity and displacement in three dimensions simultaneously.
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