Byggnadsdelar

The design method provided in this standard addresses vibrations induced by walking action of occupants and covers the following timber floor systems:
i) Light frame floors built with timber joists spaced at regular distance and a subfloor, and
ii) Mass timber floors built with mass timber panels such as cross laminated timber.
The standard consists of three elements: 1) a baseline vibrational serviceability design criterion for timber floors using fundamental natural frequency and 1 kN static point load deflection as the design
parameters; 2) equations for calculating the design parameters; and 3) a guideline for the design values of the physical and mechanical properties of floor components.
The design method is based on the assumption that the floor system has a single span and simple support conditions.
The standard allows individual jurisdictions to develop their own performance requirement levels following the guidelines and procedure described in ISO/TR 21136, and for adoption of other models to calculate the fundamental natural frequency and 1 kN static deflection.