Problem 1. The column cross section shown in Fig. 1 is cast with f: =4,000 psi and reinforced with steel off, = 60,000 p

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Problem 1 The Column Cross Section Shown In Fig 1 Is Cast With F 4 000 Psi And Reinforced With Steel Off 60 000 P 1 (65.93 KiB) Viewed 12 times

Problem 1 The Column Cross Section Shown In Fig 1 Is Cast With F 4 000 Psi And Reinforced With Steel Off 60 000 P 2 (20.09 KiB) Viewed 12 times

Problem 1. The column cross section shown in Fig. 1 is cast with f: =4,000 psi and reinforced with steel off, = 60,000 psi. The total amount of reinforcement, Au = 11.32 in', comprised of 2 No. 11 + 2 No. 10 at each end of the section. The reinforcement ratio, A./A, = 0.03 or =0.03. h = 20 yn = 15" A = 4 No. 11+ 4 No. 10 b = 18" оос No. 4 tie Bending axis E-6-50-0.75 40 7h 0.1 - 60 3.5 0.08 -0.75 -02 -0.00 30 0.03 olh03 25 -0.02 e-04 Pg-0.01 20 05 0.7 15 0.51 10 Como Cont Limit Tons. Cont Limit 0.5 0 0.2 0.4 0.6 12 14 16 0.6 M Fig. A Nondimensional interaction diagram for recaptarted colome with horsies of 000 indy-0.75 . For clearer version of the Interaction diagram, refer to Fig. A-6b in Wight's Reinforced Concrete, Pg. 1095 Fig. 1 - Problem 1.
(c) (10 points) Determine the maximum required axial force (PU) and moment (M.) that can be carried by the column if an eccentricity of 7-in is present. (d) (10 points) Check the adequacy of the column under P, = 750 k and M. = 288 k-ft. (e) (10 points) if the column is subjected to concentric loads, determine the maximum required axial force (PU) and moment (Mu) that it can be carried.