Calculations › Punching Shear
Punching Shear
EN 1992-1-1
Verifies punching shear resistance of a flat slab at a rectangular internal column to EN 1992-1-1 §6.4.
Example inputs
Column dimension bx300 mm
Column dimension by300 mm
Slab total depth h250 mm
Slab effective depth d200 mm
Concrete gradeC25/30
Reinforcement ratio ρl0.015 —
Punching force VEd200 kN
Punching reinforcementno
Asw (if reinforced)0 mm²/perimeter
National AnnexUK
Results
Punching Shear Design
EN 1992-1-1 §6.4 · C25/30 · d=200mm
Results
✓ COLUMN FACE PASS
util 0.270.83EN 1992-1-1 §6.4.5
| Column perimeter u₀ = 2(bx + by) | 1200 | mm | |
| ν (strength reduction) = 0.6(1 − fck/250) | 0.54 | — | EN 1992-1-1 §6.2.2 |
| vRd,max = 0.4 · ν · fcd | 3.061 | N/mm² | EN 1992-1-1 §6.4.5 |
| vEd at column face = VEd / (u₀ · d) | 0.833 | N/mm² |
✓ CONTROL PERIMETER PASS
util 0.340.27EN 1992-1-1 §6.4.4
| Control perimeter u₁ (at 2d) = 2(bx + by) + 4πd | 3713.27 | mm | EN 1992-1-1 §6.4.2 |
| Size effect k = min(1 + √(200/d), 2.0) | 2 | — | |
| vRd,c = 0.18/γc · k · (100·ρl·fck)^(1/3) | 0.803 | N/mm² | EN 1992-1-1 §6.4.4 |
| vmin = 0.035 · k^1.5 · √fck | 0.495 | N/mm² | EN 1992-1-1 §6.4.4 |
| vEd at u₁ = VEd / (u₁ · d) | 0.269 | N/mm² |
WARNINGS
Interior column assumed. Results are invalid for edge or corner columns.
Try it yourself
Run this calc with your own inputs