The Eurocode system of structural design standards requires that the actions which can be reasonably anticipated on a member, component or structure, do not cause vibrations that can impair the function of the structure or cause unacceptable discomfort to the users. Hence, the limit state design method presented in Eurocode 5 now incorporates a
vibration assessment method under the serviceability limit state design.
The problem of footfall induced floor vibration is introduced within this module. A brief introduction to the mechanics of vibration is followed by an identification of various vibration inducing causes present in a floor system.
The structural response to vibration is then looked at and an attempt to define what is an acceptable level of vibration is also made.
Improvements to a floor system that could improve vibration performance are also mentioned.
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