Measures · NTC imposed loads
NTC 2018 imposed loads by use category FREE
Work out the imposed (live) load for each use category, from the NTC 2018 table. Below the result you find the formula and the standard.
Indicative pre-sizing. It does not replace a structural calculation signed by a licensed engineer. For seismic zones with agS (design ground acceleration) > 0.15g, long spans or use classes III/IV → talk to a structural engineer.
Pick a calculation from the list to start.
Formula, example and standard
NTC 2018 §3.1.4 table 3.1.II
Example with the starting values (Use category: A1 · Residential): Load q_k = 2.0 kN/m². Residential spaces.
- Table lookup from NTC 2018 (the Italian building code) §3.1.4, table 3.1.II.
- Concentrated loads Qk: see the full NTC table (1.2-2.0 kN).
- Combinations: ULS (SLU) γq=1.5 · quasi-permanent SLS (SLE) ψ2=0.3 (residential).
Source: NTC 2018 §3.1.4 table 3.1.II · ingenio-web.it
Indicative pre-sizing: it does not replace a calculation signed by a licensed engineer.
The other calculations
Timber beamSteel IPE beamReinforced concrete beamReinforced concrete columnSteel columnTimber columnRC cantilever / balconyLintelClay block and concrete slabTimber floorPredalles slabLoad-bearing brick wallPartition wallStaircaseMinimum room heightWindow-to-floor ratioEscape route widthNumber of toiletsExternal insulationVentilated crawl spaceRoof pitch