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ENGV 425
SHORT COLUMN AND SLENDER COLUMN TEMPLATE
1. A 16 in. square column is reinforced with four No. 11 (No. 36) 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.
Given data
A
Area of steel = 4 nos 11 bars = in2
(from Areas of groups of standard bars)
f'c = 5000psi
fy = 60000psi
Answer To de...