Volex Labs / Calculations / Floor vibration check to AISC DG11 and SCI P354.

Floor vibration check to AISC DG11 and SCI P354.

Enter the floor bay, beam and slab, and Volex Anvil computes the fundamental frequency of the floor and the walking-excitation response — the peak acceleration or response factor R — and checks it against the human-comfort limits for the occupancy, following AISC Design Guide 11 and SCI P354.

Vibration governs many long-span steel and composite floors that pass strength and deflection easily, so the frequency and response are reported with the acceptance limit for the floor use.

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What Volex Anvil checks

Validated against the published example

Steel floor — fundamental frequency by span AISC Design Guide 11 §3.2; SCI P354 §2
QuantityPublishedVolex AnvilError
Fundamental frequency f16.13 Hz6.13 Hz0.00%
f1 at increased span3.45 Hz3.45 Hz0.03%
This case is one of 359 published checks the platform passes — the full table, with every source and every error, is public at volexlabs.com/verification.

Frequently asked

Which method — AISC or SCI?
Both — the fundamental frequency and walking response follow AISC Design Guide 11, cross-checked against SCI P354, with the response compared to the occupancy limit.
Does it handle composite floors?
Yes — the dynamic properties use the composite (dynamic) stiffness of the beam and slab, which is what governs the frequency.
Is it validated?
The fundamental frequency is checked against AISC DG11 and SCI P354 across spans — within 0.03%.
Free to try?
Yes — 10 calculations a month free; Pro (£29/month) adds unlimited runs and PDF calc sheets.

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