Structures undergo vibrations that may upset the occupants of the structure or disturb sensitive equipment. While there are a number of sources of excitation that cause vibration, one common source of excitation is footsteps of the structure occupants. This chapter gives an overview of vibration analysis and advice on using RAM Concept ’s vibration and footfall analysis capabilities. Vibration options are available through the Calc Options dialog and the analysis is invoked using the Calc Vibration Analysis ( ) command.