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(1) 21" 3". 4#9 14" (1) Ec = ? (2) fr=? (3) Mer=? #4 (4) When M = 70 (5) & Mn = 2 fl=5 ksi Grade 60 steel NWC. ft-k b=14", h=24' #4 tied stirrups. 4 #9 Rebars. Please write down units properly in the final answers. fez? (5%), fs=?

(1) 21" 3". 4#9 14" (1) Ec = ? (2) fr=? (3) Mer=? #4 (4) When M = 70 (5) & Mn = 2 fl=5 ksi Grade 60 steel NWC. ft-k b=14", h=24' #4 tied stirrups. 4 #9 Rebars. Please write down units properly in the final answers. fez? (5%), fs=?

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) 21" 3". 4#9 bood 14" (1) Ec = ? (2) fr=? (3) Mer=? (5) (4) When M = 70 #4 & Mn = ? fé = 5 ksi Grade 60 Steel NWC. ft-k 1 12 DE b=14", h=24" #4 tied stirrups. 4 #9 Rebars. Please write down units properly in the final answers. fe=? (5%), fs = ?
Transcribed Image Text:(1) 21" 3". 4#9 bood 14" (1) Ec = ? (2) fr=? (3) Mer=? (5) (4) When M = 70 #4 & Mn = ? fé = 5 ksi Grade 60 Steel NWC. ft-k 1 12 DE b=14", h=24" #4 tied stirrups. 4 #9 Rebars. Please write down units properly in the final answers. fe=? (5%), fs = ?
Expert Solution
Step 1

Given:

fc = 5 ksi = 5000 psi

fy = 60 ksi = 60,000 psi

b = 14 in

d = 21 in

h = 24 in

main bar = 4-#9(1.128 in)

stirrups = #4(0.5 in)

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