The spiral column is to be designed to carry a safe ultimate load of 2900KN. Given: concrete compressive stress, F'c = 28MPa Main reinforcement, Fy = 415MPa Spiral reinforcement, Fy= 275MPa Clear concrete covering, 40mm Reduction factor, 0.75 9. Using steel ratio of 0.025 relative to gross concrete area, determine the minimum diameter of the column, in mm. a. 400 b. 420 440 d. 460 10. If the column diameter is 600mm and the ratio of steel reinforcement to the gross concrete area of 0.02, determine the minimum diameter of 8 rebars, in mm c. 28 a. 36 b32 d. 25 Situation E. The spiral column is to be designed to carry a safe ultimate load of 2900KN.Given: concrete compressive stress, F'c = 28MPaMain reinforcement, Fy = 415MPaSpiral reinforcement, Fy= 275MPaClear concrete covering, 40mmReduction factor, 0.759. Using steel ratio of 0.025 relative to gross concrete area, determine the minimum diameterof the column, in mm.a. 400b. 420440d. 46010. If the column diameter is 600mm and the ratio of steel reinforcement to the gross concretearea of 0.02, determine the minimum diameter of 8 rebars, in mmc. 28a. 36b32d. 25

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Answered: Situation E. The spiral column is to be…

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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The spiral column is to be designed to carry a safe ultimate load of 2900KN. Given: concrete compressive stress, F'c = 28MPa Main reinforcement, Fy = 415MPa Spiral reinforcement, Fy= 275MPa Clear concrete covering, 40mm Reduction factor, 0.75 9. Using steel ratio of 0.025 relative to gross concrete area, determine the minimum diameter of the column, in mm. a. 400 b. 420 440 d. 460 10. If the column diameter is 600mm and the ratio of steel reinforcement to the gross concrete area of 0.02, determine the minimum diameter of 8 rebars, in mm c. 28 a. 36 b32 d. 25

Situation E. The spiral column is to be designed to carry a safe ultimate load of 2900KN.
Given: concrete compressive stress, F'c = 28MPa
Main reinforcement, Fy = 415MPa
Spiral reinforcement, Fy= 275MPa
Clear concrete covering, 40mm
Reduction factor, 0.75
9. Using steel ratio of 0.025 relative to gross concrete area, determine the minimum diameter
of the column, in mm.
a. 400
b. 420
440
d. 460
10. If the column diameter is 600mm and the ratio of steel reinforcement to the gross concrete
area of 0.02, determine the minimum diameter of 8 rebars, in mm
c. 28
a. 36
b32
d. 25

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