STRUCTURAL DESIGN REPORT

Biaxially Loaded Column Analysis (IS 456:2000)

Biaxial Column Design Calculator

Column Width (b) [mm]

Column Depth (D) [mm]

Concrete Grade (fck) [MPa]

Steel Grade (fy) [MPa]

Factored Axial Load (Pu) [kN]

Assumed Steel % (p)

Factored Moment X (Mux) [kNm]

Factored Moment Y (Muy) [kNm]

Uniaxial Capacity X (Mux1) [kNm] *

Uniaxial Capacity Y (Muy1) [kNm] *

* Mux1 and Muy1 must be determined from SP-16 charts based on Pu, p/fck, and d'/D.

Gross Area (Ag):

Area of Steel (Asc):

Area of Concrete (Ac):

Pure Axial Capacity (Puz):

Ratio (Pu / Puz):

Exponent (αn):

Interaction Value:
(Mux/Mux1)^αn + (Muy/Muy1)^αn ≤ 1.0