1. Draw the design P-M diagram (moment about the X-axis) for a 16"x 24" column reinforced with 6#9 (As=6 in²). The concr

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1 Draw The Design P M Diagram Moment About The X Axis For A 16 X 24 Column Reinforced With 6 9 As 6 In The Concr 1 (76.23 KiB) Viewed 17 times

1. Draw the design P-M diagram (moment about the X-axis) for a 16"x 24" column reinforced with 6#9 (As=6 in²). The concrete strength F'c= 8 ksi and Fy= 60 ksi. The clear cover is 3" to the bar's centroid. Show calculations for the following five points: a) Pure axial compression b) Stress in tension steel = 0.25 Fy c) Strain in tension steel = 0.0016 in/in d) At c/d = 0.429 e) Pure axial tension 16" & i M 3" 9" 9" 3" X