This paper summarizes results from vibration tests on floors. Classification of floors into five headings is given based on vibration characteristics. Suggested criteria and limiting values are proposed. These values are based on tests carried out on site and in laboratory conditions. It was found that the point load deflection is the best indicator for floor vibration design, when the fundamental frequency is higher than 10 Hz. It is further suggested that the deformation caused by the point load is divided into a local deflection mainly caused by soft toppings and floating floors and a global deflection of the main floor joists.
- timber structures