ETABS vs RC Column Designer: Biaxial RC Column Design Comparison | Pu = 2600 kN

How closely do ETABS and RC Column Designer compare when checking a reinforced-concrete column under axial load and biaxial bending? In this video, we compare the design workflow and reported results for a square reinforced-concrete column with a 400 × 400 mm cross-section and an applied axial load of Pu = 2600 kN. The demonstration follows the complete engineering workflow, from defining the column and materials to reviewing reinforcement, interaction diagrams, and final design checks. The video highlights: • Column and material input in RC Column Designer. • The corresponding ETABS comparison workflow. • Axial-load and biaxial-bending verification. • P–M and P–M–M interaction behaviour. • Reinforcement arrangement and section review. • Design relationships, code-based checks, and report outputs. • A practical comparison of the information presented by both programs. The purpose of this demonstration is to show the workflow, assumptions, and result presentation for the selected design case. Engineering results should always be reviewed by a qualified structural engineer and checked against the applicable project code, load combinations, material properties, and modelling assumptions before being used for construction or professional submission. RC Column Designer is developed by Eng. Shaban Alharoun — Senior Structural Designer. #ETABS #RCColumnDesigner #StructuralEngineering #ConcreteDesign #RCColumn #BiaxialBending #InteractionDiagram #StructuralDesign