For lightweight structures with span above 8 m (24 ft) vibrations may occur. In general – as a rule of thumb – the natural frequency of a structure should be greater than 4.5 Hz (1/s) .
For lightweight structures with span above 8 m (24 ft) vibrations may occur. In general – as a rule of thumb – the natural frequency of a structure should be greater than 4.5 Hz (1/s) .