To calculate the axial compression capacity of a steel angle, you would need to consider several factors such as the dimensions and properties of the angle, the material properties, and the boundary conditions. The calculation typically involves determining the slenderness ratio, which is the ratio of the length of the angle to its thickness. This ratio helps determine whether the angle will fail in compression or buckling. The axial compression capacity can then be calculated using relevant design codes or formulas, taking into account factors such as the yield strength of the material and any additional considerations specific to the application.
