Free Web Tool · AISC DG-11

Floor Vibration

AISC Design Guide 11 walking-excitation vibration check — fn (Hz), peak acceleration ap, and ap/g vs occupancy limits (offices 0.5%, residential 0.5%, dining 1.5%, etc.).

Input

beam + girder combined
0.02–0.05 typical

Results

P0 (constant force)—
Limit ap/g—
Computed ap/g (% g)—
Pass / fail—
Method

AISC DG-11 Eq. 4.1: ap/g = P0 · exp(−0.35·fn) / (β·W). P0 = 0.29 kN typical for walking. Acceptance limits (% g): office/residential 0.5; shopping/dining 1.5; rhythmic activities 4–7.