Design Results Report

The Minimum f'c Report: "This report shows the minimum required concrete strength to satisfy the compressive stress requirements. The required concrete
compressive strength for top and bottom of the section are reported in separate columns."

Is this report giving the required minimum concrete strength or a ratio? The column headings are in ksi not C/D ratio.

The report flags values less than 1.0.

The graphic output shows Force (ksi) vs. Position along box girder (ft).