Pad footing

Bearing and sliding resistance of a rectangular pad footing to Eurocode 7: effective width, the Annex D bearing factors drained or undrained, and every combination of the design approach you choose.

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INPUTkN · m · kPa · EN 1997-1

1 · Footing

B [m] side the moment acts along L [m] the longer side

Depth to base D [m] Thickness t [m]

2 · Characteristic loads at the top of the footing

G_k vertical [kN] Q_k vertical [kN]

H from G [kN] along B H from Q [kN]

M from G [kN·m] M from Q [kN·m]

3 · Soil characteristic values

Conditions γ above the base [kN/m³]

φ′_k [°] c′_k [kPa]

γ′ below the base [kN/m³] submerged weight if the water table is near the base

4 · Design approach EN 1997-1 Annex A

Results update as you type. The National Annex chooses the design approach — DA2 in many countries, DA1 in the UK.

FOOTING · EFFECTIVE WIDTH

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HOW IT'S CALCULATED · WITH YOUR NUMBERS

Step by step, with your numbers

01
Equilibrium████ ██ ███████ · ██████ = ██.██
02
Reactions████ ██ ███████ · ██████ = ██.██
03
Shear force████ ██ ███████ · ██████ = ██.██
04
Bending moment████ ██ ███████ · ██████ = ██.██
05
Deflection████ ██ ███████ · ██████ = ██.██
06
Stress████ ██ ███████ · ██████ = ██.██

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EN 1997-1: 6.5.2, 6.5.3, Annex D (bearing resistance) and Annex A (partial factors, recommended values).

BEYOND ANNEX D

Settlement, layered soils, piles and soil–structure interaction — we model the ground.

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