2. The column section shown below has ties, concrete compressive strength fe' = 5000 psi, and flexural reinforcement strength fy = 60,000 psi. Assume the cover thickness measured to the center of flexural reinforcement is 2.5 in. on all sides. Consider eccentricity in the x axis, i.e., bending is about the y axis.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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2.
The column section shown below has ties, concrete compressive strength fe' =
5000 psi, and flexural reinforcement strength fy = 60,000 psi. Assume the cover thickness
measured to the center of flexural reinforcement is 2.5 in. on all sides. Consider
eccentricity in the x axis, i.e., bending is about the y axis.
20"
8 No.9 bars
No. 3 ties
2.5" TYPICAL
(a) Calculate the maximum design compressive strength oPn,max.
(b) Calculate the design strength P, and Mn when the distance of the neutral axis to the
extreme compression side equal to 9 inches.
Transcribed Image Text:2. The column section shown below has ties, concrete compressive strength fe' = 5000 psi, and flexural reinforcement strength fy = 60,000 psi. Assume the cover thickness measured to the center of flexural reinforcement is 2.5 in. on all sides. Consider eccentricity in the x axis, i.e., bending is about the y axis. 20" 8 No.9 bars No. 3 ties 2.5" TYPICAL (a) Calculate the maximum design compressive strength oPn,max. (b) Calculate the design strength P, and Mn when the distance of the neutral axis to the extreme compression side equal to 9 inches.
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