A short concrete column is being used to support the roof over a pedestrian walkway. The unbraced column length is 9 feet and supports a dead load of 12 kips and a live load of 20kips. The dead load moment from the supported beam is 8kip-ft and the live load moment is 40kip-ft. The initial design calls for the columns to be 8 inches square. What is the area of longitudinal steel required for this column? Us 4000 psi concrete and Grade 60 steel.