Tentative web based Column Design for Axial load with biaxial bending

RCC — Biaxial Column Calculator (Slenderness and Stepwise Log)

This calculator is a software-based tool built on simplified assumptions and idealized design checks. It is intended only for learning, preliminary estimation, and academic demonstration purposes. Actual RCC design of biaxially loaded columns must be carried out in strict accordance with: IS 456:2000 (or the governing RCC code) IRC:SP 105 (for bridge substructure) Detailed structural design procedures including load combinations, ductility, confinement, detailing, safety factors, durability, construction tolerances, and serviceability checks. For any real project, use proper design procedures and seek approval from a licensed Structural Engineer.

Column width b (mm)

Column depth D (mm)

Effective length l_eff (mm)

Concrete f_ck (MPa)

Steel f_y (MPa)

Bar dia (mm)

No. bars (Top & Bottom each)

No. bars (Left & Right each)

Cover to reinforcement (mm)

Applied axial N_ed (kN)

Applied M_x (kNm)

Applied M_y (kNm)