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4-5 and 4-6 Compute oM, and check Acamin for the beams shown in Figs. P4-5 and P4-6, respec- tively. Use f = 4500 pai for Problem 4-5 and 4000 psi for Problem 4-6. Use fy - 60,000 psi for both problems. 48 in. 6 in. 10in 92 in 6 No. 8 bars 12 in

4-5 and 4-6 Compute oM, and check Acamin for the beams shown in Figs. P4-5 and P4-6, respec- tively. Use f = 4500 pai for Problem 4-5 and 4000 psi for Problem 4-6. Use fy - 60,000 psi for both problems. 48 in. 6 in. 10in 92 in 6 No. 8 bars 12 in

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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4-5 and 4-6 Compute oM, and check Agmin for the beams shown in Figs. P4-5 and P4-6, respec- tively. Use f = 4500 pai for Problem 4-5 and 4000 psi for Problem 4-6. Use f, - 60,000 psi for both problems. 4-7 Compute the negative-moment capacity, OM. and check Agmin for the beam shown in Fig. P4-7. Use f = 4000 psi and fy = 60,000 psi. 48 in. 6 in. 43 in. 6 in. 6 No. 8 bars T10 in 22 in 6 No. 8 bars 19 5 in. 16 in. 12 in 12 in. 20 in. Fig. P4.5 5 in. Fig. P4-7 18.5 in. 22 in. 6 No. 8 bars 10 in. Fig. P4-6 12 in. 2.5 in. 3.5 in. 2 No. 9 bare 4 No. 9 bera 32.5 in. 8 No. 9 bars Fig. P4-11 cost-effective way of increasing the strength, Ma, of a beam. 4-11 (a) Compute Mn for the throe beams shown in Fig. P4-11. In each case, f% = 5000 psi, fy = 60 ksi, b = 12 in., d = 32.5 in., and k = 36 in. (b) From the results of part (a), comment on whether adding compression reinforcement is a
Transcribed Image Text:4-5 and 4-6 Compute oM, and check Agmin for the beams shown in Figs. P4-5 and P4-6, respec- tively. Use f = 4500 pai for Problem 4-5 and 4000 psi for Problem 4-6. Use f, - 60,000 psi for both problems. 4-7 Compute the negative-moment capacity, OM. and check Agmin for the beam shown in Fig. P4-7. Use f = 4000 psi and fy = 60,000 psi. 48 in. 6 in. 43 in. 6 in. 6 No. 8 bars T10 in 22 in 6 No. 8 bars 19 5 in. 16 in. 12 in 12 in. 20 in. Fig. P4.5 5 in. Fig. P4-7 18.5 in. 22 in. 6 No. 8 bars 10 in. Fig. P4-6 12 in. 2.5 in. 3.5 in. 2 No. 9 bare 4 No. 9 bera 32.5 in. 8 No. 9 bars Fig. P4-11 cost-effective way of increasing the strength, Ma, of a beam. 4-11 (a) Compute Mn for the throe beams shown in Fig. P4-11. In each case, f% = 5000 psi, fy = 60 ksi, b = 12 in., d = 32.5 in., and k = 36 in. (b) From the results of part (a), comment on whether adding compression reinforcement is a
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