Deflection Limits: floor-beam
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 | live | L | 360 | Floor member — live load | L/360 | Span/360; most common floor live load limit |
| floor-beam | total | D + L | 240 | Floor member — dead plus live load | L/240 | Span/240 total; controls for long spans with heavy DL |
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roof-plaster-ceiling3 rowsroof-nonplaster-ceiling3 rowsroof-no-ceiling3 rowsexterior-wall-plaster1 rowexterior-wall-brittle1 rowexterior-wall-flexible1 rowinterior-partition-plaster1 rowinterior-partition-brittle1 rowinterior-partition-flexible1 rowfarm-building1 rowgreenhouse1 rowseismic-story-drift-dce1 row