(Answered): Problem #2 A circular column section shown in Figure 2 has diameter h = 30 in. It is reinforced wit ...

Problem #2 A circular column section shown in Figure 2 has diameter h = 30 in. It is reinforced with 16 #10 bars as shown in the figure. The clear concrete cover to the outside edge of the spiral is 12 inch. Use #4 bar for spiral reinforcement Assuming that the column is short, calculate the design axial load strength of the section Determine the diameter and the maximum spacing of the spiral as specified in ACI 318 to classify the column to be a spirally reinforced column. Check all the detailing requirements of ACI 318 pertaining to sprially reinforced columns Show a neat sketch of the cross section and an elevation for about 5 ft length (AutoCAD preferred) (iv) (v) (vi) The material strengths are fc 6,000 psi and fy fyt= 80,000 psi 3' cover 140 mm 45 14 #10 #4 Spiral 24" 16 #10 10" 11" 10" 36" 30 Figure 1 Section for Problem 1 Figure 2 Section for Problem 2