Purpose: Used to select interpolation method for force, stress and deflection tables in girder rating output.
--> Given in girder input
Parabolically interpolates tabulated values of forces, stresses and deflections between tenth points to generate twentieth point (see FINE RESOLUTION OUTPUT ) or hundredth point output (see SUPER FINE RESOLUTION OUTPUT ) as well as values of forces at flange splice locations. (Also see LINEAR INTERPOLATION )