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Design the following columns : b. Round spiral column. Pu=550 k and Mu=550k-ft. fc-4000 psi and fy=60000 psi. select steel ratio approximately: pg=2%. (Diameter in 20 in, cover is 2.5 in)

Design the following columns : b. Round spiral column. Pu=550 k and Mu=550k-ft. fc-4000 psi and fy=60000 psi. select steel ratio approximately: pg=2%. (Diameter in 20 in, cover is 2.5 in)

Structural Analysis
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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Please design a round spiral column with the given information and diagrams. 

Design the following columns : b. Round spiral column. Pu=550 k and M₂-550k-ft. f-4000 psi and fy=60000 psi. select steel ratio approximately: pg=2%. (Diameter in 20 in, cover is 2.5 in) K₁= PfAg K₁= P₁lf Ag 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0.00 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0.00 P=0.08 0.07 0.06 0.05 0.04 -0.03 0.02 0.01 P = 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 €, = 0.0035 €,=0.0050 0.05 0.05 INTERACTION DIAGRAM C4-60.7 f=4 ksi f, = 60 ksi y = 0.7 €, = 0.0050 Kmax 0.10 €, = 0.0035 .…..................... 0.10 0.15 R₁ = Pelf Ah fy = 60 ksi y = 0.8 Kmax f.lf, = 0 ...... INTERACTION DIAGRAM C4-60.8 f = 4 ksi 0.15 0.20 felf=0 0.20 0.25 R₁ = Pelf Ah 0.50 0.25 0.25 0.25 0.75 0.50 1.0 0.30 h yh 0.75 0.30 1.0 0.35
Transcribed Image Text:Design the following columns : b. Round spiral column. Pu=550 k and M₂-550k-ft. f-4000 psi and fy=60000 psi. select steel ratio approximately: pg=2%. (Diameter in 20 in, cover is 2.5 in) K₁= PfAg K₁= P₁lf Ag 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0.00 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0.00 P=0.08 0.07 0.06 0.05 0.04 -0.03 0.02 0.01 P = 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 €, = 0.0035 €,=0.0050 0.05 0.05 INTERACTION DIAGRAM C4-60.7 f=4 ksi f, = 60 ksi y = 0.7 €, = 0.0050 Kmax 0.10 €, = 0.0035 .…..................... 0.10 0.15 R₁ = Pelf Ah fy = 60 ksi y = 0.8 Kmax f.lf, = 0 ...... INTERACTION DIAGRAM C4-60.8 f = 4 ksi 0.15 0.20 felf=0 0.20 0.25 R₁ = Pelf Ah 0.50 0.25 0.25 0.25 0.75 0.50 1.0 0.30 h yh 0.75 0.30 1.0 0.35
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