A 16 in. square column is reinforced with four No. 14 (No. 43) bars, one in each corner, with cover distances 3 in. to the steel center in each direction. Material strengths are f c = 5000 psi and f y = 60,000 psi. Construct the interaction diagram relating axial strength Pn and flexural strength Mn . Bending will be about an axis parallel to one face. Calculate the coordinates for Po , Pb , and at least three other representative points on the curve.  And then... Plot the design strength curve relating ϕ P n and ϕ M n for the column of the above. Design and detail the tie steel required by the ACI Code. Is the column a good choice to resist a load P u = 540 kips applied with an eccentricity e = 4.44 in.?

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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A 16 in. square column is reinforced with four No. 14 (No. 43) bars, one in each corner, with cover distances 3 in. to the steel center in each direction. Material strengths are f c = 5000 psi and f y = 60,000 psi. Construct the interaction diagram relating axial strength Pn and flexural strength Mn . Bending will be about an axis parallel to one face. Calculate the coordinates for Po , Pb , and at least three other representative points on the curve. 

And then...

Plot the design strength curve relating ϕ P n and ϕ M n for the column of the above. Design and detail the tie steel required by the ACI Code. Is the column a good choice to resist a load P u = 540 kips applied with an eccentricity e = 4.44 in.?

9.3.
Plot the design strength curve relating pP, and OM, for the column of
Problem 9.1. Design and detail the tie steel required by the ACI Code. Is the
column a good choice to resist a load P, = 540 kips applied with an eccentricity
e = 4.44 in.?
Transcribed Image Text:9.3. Plot the design strength curve relating pP, and OM, for the column of Problem 9.1. Design and detail the tie steel required by the ACI Code. Is the column a good choice to resist a load P, = 540 kips applied with an eccentricity e = 4.44 in.?
A 16 in. square column is reinforced with four No. 14 (No. 43) bars, one in
each corner, with cover distances 3 in. to the steel center in each direction.
Material strengths are f = 5000 psi and f, = 60,000 psi. Construct the interac-
tion diagram relating axial strength P, and flexural strength M,. Bending will
be about an axis parallel to one face. Calculate the coordinates for P, P, and
at least three other representative points on the curve.
9.1.
n°
Transcribed Image Text:A 16 in. square column is reinforced with four No. 14 (No. 43) bars, one in each corner, with cover distances 3 in. to the steel center in each direction. Material strengths are f = 5000 psi and f, = 60,000 psi. Construct the interac- tion diagram relating axial strength P, and flexural strength M,. Bending will be about an axis parallel to one face. Calculate the coordinates for P, P, and at least three other representative points on the curve. 9.1. n°
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