Vibration is measured in terms of its velocity and acceleration. It is also essential to consider the frequency at which the vibration occurs. In vibration resonance, the closer the forcing frequency of the vibration to the natural or resonant frequency (of the building’s structural elements), the greater the effect will be.
Standards and Guidance Used to Assess Vibration
Environmental vibration affects buildings (BS.7385) or causes disturbance to occupants of the buildings (BS.6472)
Environmental vibration affects buildings (BS.7385) or causes disturbance to occupants of the buildings (BS.6472)
Vibration Dose Value
Vibration Dose Value (VDV) is a metric used in vibration monitoring. It is calculated by taking the fourth root of the integral of the fourth power of acceleration after it has been frequency-weighted. The frequency-weighted acceleration is measured in m.s-2, and the time period over which the VDV is measured is in seconds. This yields VDVs in m.s-1.75
The vibration dose value (VDV), a cumulative measurement of the vibration level received over an 8-hour (night time) or 16-hour (day time) period, is recommended in BS 6472 as the appropriate measure to evaluate human exposure to vibration in buildings in residential and other uses.
All project vibration monitoring can be remotely monitored, providing us with remote access to all equipment over GSM and providing stakeholders with access to our online portal over the SvanNET system.
