column

Combined Bending and Axial Loading
A member that has a load applied both in bending as in a beam,and axially as in a column is sized according to the formulas here. First the maximum allowable load as a column is checked, then the maximum allowable load as a beam. When a column is axially loaded and a load pushes on the side, a reduction in the allowable axial load must be made. There is an interrelation, as the axial load increases towards the maximum allowed column load, the member is less able to take side loading. As the axial load decreases the member can accept more side load. Think of a popsicle stick between thumb and forefinger. As you squeeze together this loads the column along its axis. If you push on the middle of the stick it is easier to buckle the stick the harder it has been loaded axially.

This calculator uses math formulas from the NDS section 3.9 "Combined Bending and Axial Loading"
No representation is made as to whether they are correct or that they are correct for your situation.
They are for educational use only. The user assumes all risk from their use of this program.

Total Axial Load on Column(pounds) Base Design Values
Total Uniform Edgewise Bending Load on Column(pounds) Allowable Fiberstress in Bending (Fb)(psi)
Span of Column (inches) Modulus of Elasticity (E or MOE)(million psi)
Depth of Column (inches) Allowable Shear (Fv)(psi)
Width of Column (inches) Column Modulus of Elasticity (Emin)(million psi)
Select Species and Grade
RESULTS
Column Cp, Column Stability Factor % Column allowable bending only stress(psi) Column Pass<1>Fail
Column Fc', Adjusted allowable fiberstress in compression(psi) Column actual bending stress(psi)This number must be less than the number above Column Pass/Fail
Column FC, Adjusted Allowable axial only load based on Fc*Cp*D*B
Column Rb, Column Slenderness Ratio, must be under 50
Column allowable depth buckling stress (psi)
Column actual buckling stress (psi) This number must be less than the number above
Column allowable width buckling stress (psi)