2. Vibration and natural frequency of composite floors
For normal-span composite floors (span ), the decisive design conditions are bending strength and deflection control. For long-span floors (6 to 18 m), the control of vibrations induced by occupants becomes a decisive design condition.
The vibratory behavior of a floor under the action of users can be verified either by calculating the response to dynamic loading induced by users, or by imposing a minimum vibration frequency for the floor structure.
The mere criterion of a minimum frequency limit gives no indication of the level of response of the floor in service. As a result, a design that respects certain minimum frequency limits may result in a floor that is uncomfortable in service, or...
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Vibration and natural frequency of composite floors
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References
- (1) - Eurocode - Actions sur les structures. Partie 1-1 : Actions générales - Poids volumiques, poids propres et charges d'exploitation pour les bâtiments. NF EN 1991-1-1 (indice de classement : P 06-111-1), et son annexe nationale, mars 2003. http://www.afnor.fr
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