4.3 Based on the information given in the following table and for each assigned problem, calculate the tension steel and bars required to resist the factored moment shown. Use f = 3 ksi and f, = 60 ksi. Draw detailed, neat sections. No. a b d e f g h i j k 1 m n 0 P M (K-ft) 394 800 250 327 577 559 388 380 537 515 361 405 378 440 567 507 b (in.) 48 60 44 50 54 48 44 46 60 54 44 50 44 36 48 46 b (in.) 14 16 15 14 16 14 12 14 16 16 15 14 16 16 12 14 For problems in SI units, 1 in.= 25.4 mm, 1 ksi = 6.9 MPa (N/mm²), and 1 M., (K-ft)=1.356 kN-m. t (in.) 3 4 3 3 4 4 3 3 3 3 3 3 3 4 3 3 d (in.) 18.5 19.5 15.0 13.0 18.5 17.5 16.0 15.0 16.5 17.5 15.0 15.5 |||| Notes Let a=t Let a=t Let A, = 6.0 in.² Let A, = 7.0 in.²

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