What is Nominal Member Capacity?
Slenderness, end restraints, and various other parameters influence a member’s axial compression capacity, which we define as its nominal member capacity
Geometrical Slenderness
Let’s talk about the geometrical slenderness ratio (le/r). This ratio, which compares the effective length to the radius of gyration, is essential in defining how a member performs under load. A higher slenderness ratio may indicate a greater susceptibility to buckling, affecting the nominal member capacity. By understanding these key factors, engineers can optimize designs for safety and performance.
AS 4100 Compression Check
Nominal Axial Capacity
Effective Length Diagram
Live steel member visualisation with geometry-derived section properties and governing buckling axis.
Result
Design Compression Capacity
Results stay disabled until all required values are valid.
Inputs
Member Definition
Section Geometry
Calculated Properties Source
Net section resisting axial action is taken as the calculated geometric area of the selected section shape. Hole deductions and fabrication losses are not applied in this module.
Saved Results
Audit Trail
| Timestamp | Member | Section | Axis | L (mm) | fy (MPa) | An (mm²) | r (mm) | ϕNc (kN) |
|---|---|---|---|---|---|---|---|---|
| Save design iterations to build a project-side audit trail. | ||||||||
