A 450 diameter concrete spiral column is to be desigmed to support a factored axial load of 3200 kN. Clear bar covering is 40 mm and the aggregate size is 25 mm. Use the 2010 NSCP with fc= 28 MPa, fy = 415 MPa, fyt = 415 MPa. Limit the gross steel percentage to 2%. Find the following a) The mumber of pcs of 28 mm diameter bars for the longitudinal reinforcements. b) The spacing of the 10 mm diameter spiral reinforcements in mm. c) Which of the following mostly nearly gives the clear spacing of the main longitudinal reinforcements in mm.

A 450 diameter concrete spiral column is to be desigmed to support a factored axial load of 3200 kN. Clear bar covering is 40 mm and the aggregate size is 25 mm. Use the 2010 NSCP with fc= 28 MPa, fy = 415 MPa, fyt = 415 MPa. Limit the gross steel percentage to 2%. Find the following a) The mumber of pcs of 28 mm diameter bars for the longitudinal reinforcements. b) The spacing of the 10 mm diameter spiral reinforcements in mm. c) Which of the following mostly nearly gives the clear spacing of the main longitudinal reinforcements in mm.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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