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RCC Design Engine / Column P–M Interaction

Loads

Service P (kN)

M about x (kN·m)

M about y (kN·m)

Enter factored frame moments if known; 0 lets e_min govern.

Geometry

b (mm) — about y

D (mm) — about x

Unsupported L (mm)

k — both axes

Clear cover (mm)

Materials

Concrete

Steel f_y

Steel

Bar dia

Bars along b

Bars along D

Tie dia

Beam bar φ at joint

SMRF — IS 13920

Optimiser — rates

Concrete / m³

Steel / kg

Formwork / m²