Student: Thijmen T.P.T. van de Goor
Supervisors: Arjan Habraken, Faas Moonen, Susanne Bron – van der Jagt
11-07-2024
Abstract
Using timber floor systems is becoming increasingly popular in the construction sector. However, these floor systems face challenges regarding vibration performance due to their low self-weight. To solve these problems, ballast is added to the floor system. This requires significantly more material usage for the floor system. Therefore, the goal of this research is the reduction of ballast in a floor system, while maintaining the desired level of vibration performance. Am analytical analysis is performed to research the vibration performance of four different timber floor systems: Joist, Cross Laminated Timber (CLT), Lignatur, and Kerto Ripa Rib. This research is done following the OS-RMS90 method. Based on this analysis, it is clear that the CLT and Lignatur floor systems outperform the Joist and Kerto Ripa floors in terms of vibration. This can be explained by their higher self-weight and higher transverse stiffness. The optimisations consists out of two methods: strategically placed mass and tuned mass. The Lignatur floor system was chosen for the optimisation methods, due to its performance and the ability to apply ballast inside the floor elements. The optimization using strategically placed mass shows that the ballast on the floor can be reduced by 36% for a Lignatur floor system. When placing the ballast on top of a spring system, a total reduction in ballast of 25% is possible for the floor system. When combining both optimisation methods, a reduction in mass of 52% is possible. Implementation of these options shows that there are limitations to the reduction in mass. The space that is needed inside the Lignatur floor element often exceeds the available space, meaning that the most optimal solution is not always practically feasible.
Keywords: Human-induced vibrations, timber floor systems, OS-RMS90 method, strategically placed mass, tuned mass, Lignatur, optimisations
Cite this
Placement of strategic mass and/or the appliance of spring and tuned mass dampers, to improve the serviceability performance of timber floor systems in residential or office buildings, with regards to human-induced vibrations.
Van de Goor, T.M.T. (Author). 11-07-2024
RESED 