Total Deformation

w_{tot} = \frac{w_{0}}{1 - \frac{2 * P}{C * L}}

w_tot	Total deformation from buckling deflection and precamber
w₀	Pre-deformation from precamber due to geometric imperfection
P	Existing compression axial force in buckling member
C	Spring stiffness of lateral support spring
L	Span between support and support spring

Do you have any questions?