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Two-way flat slab, 200mm thickness, C25/30, Ø12-150 B500B top and bottom. Shear check per EN 1992-1-1 §6.2.2 (V_Rd,c without links), crack width §7.3 under quasi-permanent load (w_k = 0.21mm < 0.3mm XC1), minimum slab reinforcement §9.3.1.1. Secondary reinforcement ≥ 20% of main. Rebar schedule per BS 8666.
Project highlights
- C25/30 concrete, 200mm flat slab
- Ø12-150 → As=754mm²/m > As,min=218mm²/m
- V_Rd,c=58.2 kN/m — no links required
- w_k = 0.21mm < 0.3mm (XC1 pass)
Eurocode design summary
EN 1992-1-1 §6.2.2 — ShearV_Rd,c=58.2 kN/m, V_Ed=45 kN/m ✓
EN 1992-1-1 §7.3 — Crack widthw_k=0.21mm ≤ 0.40mm (XC1) ✓
EN 1992-1-1 §9.3.1.1 — Min reinfAs,prov=754mm²/m ≥ As,min=218mm²/m ✓
EN 1992-1-1 §9.3.1.1 — Sec reinfAs,sec ≥ 20% of main → Ø10-200 ✓
2 downloadable artefacts
PDF — Rebar schedule
BS 8666 shape codes
Download
PDF — Calc note
EN 1992-1-1 §6.2/§7.3/§9.3
Download
Calculation overview
Max utilization
77.4%
V_Rd,c
58.2 kN/m
As,prov / As,min
754 / 218 mm²/m
w_k
0.21 mm (XC1)
