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1. A reinforced concrete beam has the following properties: fy= 60 ksi = 60,000 psi f'c= 5,000 psi As = 3.01 in² b = 12 in d = 20 in a) Use equation 13.3.3 from the text to compute the depth of the compressive stress block (a). b) Calculate the actual percentage of reinforcement (p). Do not use the value from Table 13.2 because this assumes the beam is balanced. c) Determine the moment capacity (M) in kip ft. Hint: you will have to compute R value first.

1. A reinforced concrete beam has the following properties: fy= 60 ksi = 60,000 psi f'c= 5,000 psi As = 3.01 in² b = 12 in d = 20 in a) Use equation 13.3.3 from the text to compute the depth of the compressive stress block (a). b) Calculate the actual percentage of reinforcement (p). Do not use the value from Table 13.2 because this assumes the beam is balanced. c) Determine the moment capacity (M) in kip ft. Hint: you will have to compute R value first.

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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1. A reinforced concrete beam has the following properties: fy= 60 ksi = 60,000 psi f'c= 5,000 psi As = 3.01 in² b = 12 in d = 20 in a) Use equation 13.3.3 from the text to compute the depth of the compressive stress block (a). b) Calculate the actual percentage of reinforcement (p). Do not use the value from Table 13.2 because this assumes the beam is balanced. c) Determine the moment capacity (M) in kip ft. Hint: you will have to compute R value first.
Transcribed Image Text:1. A reinforced concrete beam has the following properties: fy= 60 ksi = 60,000 psi f'c= 5,000 psi As = 3.01 in² b = 12 in d = 20 in a) Use equation 13.3.3 from the text to compute the depth of the compressive stress block (a). b) Calculate the actual percentage of reinforcement (p). Do not use the value from Table 13.2 because this assumes the beam is balanced. c) Determine the moment capacity (M) in kip ft. Hint: you will have to compute R value first.
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