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A 16 in square column is reinforced with four No. 14 bars, one in each corner,...

A 16 in square column is reinforced with four No. 14 bars, one in each corner, with cover distances of 3 in to the steel center in each direction. Material strengths are ?? ′ = 5,000 psi and ?? = 60,000 psi. Bending will be about an axis parallel to one face. Construct the nominal strength interaction curve based on ONLY three points, including those corresponding to pure axial force, pure bending moment, and balanced failure.

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