Materials Science And Engineering Properties
1st Edition
ISBN: 9781111988609
Author: Charles Gilmore
Publisher: Cengage Learning
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Where does the value for yc in step two come from?
Expert Solution
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Step 1
Since the unit weight of the concrete for the beam is not given in the problem.
Usually the unit weight of concrete is assumed as either 24kN/m3 or 25kN/m3 .
In this problem the unit weight of concrete is assumed as 25kN/m3.
As per Imperial system 25kN/m3 = 0.161 kips/ft3.
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