Design the cross-section and reinforcement of a tied pin-ended circular column to support an axial dead load of 1200 kN and a live load of 850 kN. The column diameter is 400 mm, the load acts at an eccentricity of 80 mm at the top and the load is concentric at the bottom. The column is part of a braced frame and has an unsupported length of 4000 mm.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Design the cross-section and reinforcement of a tied pin-ended circular column to support an axial dead load of 1200 kN and a live load of 850 kN. The column diameter is 400 mm, the load acts at an eccentricity of 80 mm at the top and the load is concentric at the bottom. The column is part of a braced frame and has an unsupported length of 4000 mm. Clear cover to longitudinal bars is 50 mm to ensure a 2-hour fire rate.

Given: f= 34.5 MPa (5 ksi), fy = 420 MPa (60 ksi), Maximum aggregate size is 25 mm.

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