Problem 5.21 Determine the amount of reinforcing steel required for each T beam in the accompanying illustration if fy = 60,000 psify = 60,000 psi, f = 4000 psi f = 4000 psi, simple span = 20 ft, MD = 200 ft-kMD = 200 ft-k (includes effect of concrete weight), and M (Ans. 8.11 in.2 8.11 in.2) = 500 ft-kM₁ = 500 ft-k. 12 in. 4 ft 0 in. + 4 ft 0 in. 12 in. +12in1 12 in. 4 in. T 30 in. -4 ft 0 in.- + 4 ft 0 in.
Problem 5.21 Determine the amount of reinforcing steel required for each T beam in the accompanying illustration if fy = 60,000 psify = 60,000 psi, f = 4000 psi f = 4000 psi, simple span = 20 ft, MD = 200 ft-kMD = 200 ft-k (includes effect of concrete weight), and M (Ans. 8.11 in.2 8.11 in.2) = 500 ft-kM₁ = 500 ft-k. 12 in. 4 ft 0 in. + 4 ft 0 in. 12 in. +12in1 12 in. 4 in. T 30 in. -4 ft 0 in.- + 4 ft 0 in.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Problem 5.21 Determine the amount of reinforcing steel required for each T beam in the accompanying
illustration if fy = 60,000 psify = 60,000 psi, f = 4000 psi f = 4000 psi, simple span = 20 ft,
MD
=
200 ft-kMD = 200 ft-k (includes effect of concrete weight), and M
(Ans. 8.11 in.2
8.11 in.2)
=
500 ft-kM₁ = 500 ft-k.
12 in.
4 ft 0 in.
+
4 ft 0 in.
12 in.
+12in1
12 in.
4 in.
T
30 in.
-4 ft 0 in.-
+
4 ft 0 in.
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