Deflection Limits: floor-beam-vibration
Serviceability deflection and drift limits per IBC 2021 Table 1604.3 and ASCE 7-22 — floor beams, roof members, exterior walls, interior partitions, and story drift for seismic and wind
| member type | load case | applicable load combination | limit denominator (dimensionless) | limit description | limit ratio | notes |
|---|---|---|---|---|---|---|
| floor-beam-vibration | vibration | L (occupancy-dependent) | 360 | Floor beam — vibration criterion (typical office/residential) | L/360 | Acceleration criterion governs; L/360 is common baseline but SCI P354 ai<0.5%g for offices |
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