In the column shown, the lower column bars are #8 and the upper ones are #7. The bars are enclosed by ties spaced 12in. on center. If fy = 60000 psi and f'c = 4000 psi, what is the minimum lap splice length needed? Normal weight concrete is to be used for the 12in x 12in column. ,#7 #8

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A: Given fy= 60000 psi fc'= 4000 psi

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