c) Find the stresses in the concrete and the reinforcement for the following applied moments: (i) - M1= 35kN.m and (ii) - 120kN.m

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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c) Find the stresses in the concrete and the reinforcement for the following applied moments: (i) – M1=
35kN.m and (ii) – 120kN.m
Cross-section:
width
height
Modulus of elasticity:
concrete
reinforcement
Reinforcement:
depth
area
b:= 300-mm
h := 520-mm
Ec:= 30-GPa
Es:= 200-GPa
d:= 460-mm
As 1470-mm
2
h
d
b
Transcribed Image Text:c) Find the stresses in the concrete and the reinforcement for the following applied moments: (i) – M1= 35kN.m and (ii) – 120kN.m Cross-section: width height Modulus of elasticity: concrete reinforcement Reinforcement: depth area b:= 300-mm h := 520-mm Ec:= 30-GPa Es:= 200-GPa d:= 460-mm As 1470-mm 2 h d b
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Please analyse question 3C(i) with a M1 = 35kN.m as an un-cracked section and 3C(ii) with a M2 = 120kN.m as a cracked section. Give stress diagrams 

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 Where do we get n from and what does it stand for ?

 

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