(Solved): work #3 please 1. A square concrete column shown below is subjected to an axial load and a uniaxial ...

1. A square concrete column shown below is subjected to an axial load and a uniaxial bending moment associated with e/h = 1.2. To optimize the column capacity, longitudinal reinforcement should be added to: A. Only one side: A, B, C or D B. Two sides: A and B C. Two sides: Cand D D. All four sides, equally distributed 2. The cross section of a short concentrically loaded reinforced concrete column is shown. The factored axial load is P, is 600 kips. Based on ACI strength design and assuming that the longitudinal reinforcing bars are all the same size, the minimum required size of each longitudinal reinforcing bar is: A. No. 3 B. No. 4 C. No. 5 D. No. 6 A. 1% 8. 2% C. 4% D. 7% longitundinal- rainfon 3. The square-tied reinforced concrete column in the figure below supports a factored axial load P. - 600 kips at an eccentricity of 6 in. Assume f= 4 ksi and f, -60 ksi. It may be assumed the resistance factor=0.65. The required amount of longitudinal steel (places in the rectangular pattern shown) expressed as a percentage of the gross area of the column is most nearly ELEVATION VIEW Colum --Footing C-4000 -60.000 n 18 in square tied column cross section