Wide column spans along with the use of high strength material make modern floor systems flexible and oscillatory. Walking (as well as other human activities) can induce high levels of vibration in such floors. When the traditional floor vibration control solutions, such as adding architectural features, mass, and/or stiffness to the floor are either not practical or ineffective, reactive damping provided by tuned mass dampers (TMDs) are used for quieting vibrating floors. High level of effectiveness, negligible weight penalty and ease of installation make TMDs a cost-effective and non-intrusive vibration control solution for both new and existing floors. In addition contrary to the damping that can be provided by non-structural elements such as partitions, raised floors and paneling which is not readily quantifiable and may not be an option for a space in which a light fitout is required, tuned mass dampers provide predictable damping and can easily be retrofitted. The installation of TMDs on existing floors is the least disruptive (to the occupants) of any floor vibration control solution
The paper titled
“Vibration abatement of rectangular, trapezoidal and irregular-shaped joist-framed floors, using tuned mass dampers” on mitigating floor vibration has recently been published in “The Structural Engineer”, the flagship publication of The Institution of Structural Engineers. The subject of the paper is about one of the DEICON’s projects on mitigating floor vibration using tuned mass dampers.
The citation for the paper is:
Kashani, R., 2015 “Vibration Abatement of Rectangular, Trapezoidal, and Irregular-Shaped Joist Framed Floors, Using Tuned Mass Dampers” The Institution of the Structural Engineers The Structural Engineer Journal, Volume 94, Issue 1, (2016).