1. Design a round spiral column to support an axial dead load of 1200 kN and live load of 1500 kN. Use gross steel ratio of approximately 3%. Assume fc' = 28 MPa and fy = 415 MPa. Use 25 mm bars for main reinforcement and 10 mm bars for spiral reinforcement. Use NSCP 2015. a. Compute for the required area of steel. b. Determine the number of longitudinal bars.

Structural Analysis
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Chapter2: Loads On Structures
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1. Design a round spiral column to support an axial dead load of 1200 kN and
live load of 1500 kN. Use gross steel ratio of approximately 3%. Assume
fc' = 28 MPa and fy = 415 MPa. Use 25 mm bars for main
reinforcement and 10 mm bars for spiral reinforcement. Use NSCP 2015.
a. Compute for the required area of steel.
b. Determine the number of longitudinal bars.
Transcribed Image Text:1. Design a round spiral column to support an axial dead load of 1200 kN and live load of 1500 kN. Use gross steel ratio of approximately 3%. Assume fc' = 28 MPa and fy = 415 MPa. Use 25 mm bars for main reinforcement and 10 mm bars for spiral reinforcement. Use NSCP 2015. a. Compute for the required area of steel. b. Determine the number of longitudinal bars.
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