The concrete post (Ec = 30 GPa and =10x10 /C) is reinforced with six steel bars, each of 10 mm diameter (Es = 210 do %3D -6 o %3D -6 o GPa and a = 12x10 / C). Determine the normal stress-induced in the steel by a temperature fall of 70 °C.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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The concrete post (Ec = 30 GPa and a,
%3D
-6 o
=10x10/C)is reinforced with six steel
bars, each of 10 mm diameter (Es = 210
GPa and a̟ = 12×10/ C). Determine the
normal stress-induced in the steel by a
temperature fall of 70 °C.
-6 o
3 m
30 cm
30 cm
Select one:
a. 21.84 MPa Compression
b. 21.84 MPa Tension
c. 1.08 MPa Compression
d. 1.08 MPa Tension
e. No stress
f. None
Transcribed Image Text:The concrete post (Ec = 30 GPa and a, %3D -6 o =10x10/C)is reinforced with six steel bars, each of 10 mm diameter (Es = 210 GPa and a̟ = 12×10/ C). Determine the normal stress-induced in the steel by a temperature fall of 70 °C. -6 o 3 m 30 cm 30 cm Select one: a. 21.84 MPa Compression b. 21.84 MPa Tension c. 1.08 MPa Compression d. 1.08 MPa Tension e. No stress f. None
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