Where does the value for yc in step two come from?
Materials Science And Engineering Properties
1st Edition
ISBN:9781111988609
Author:Charles Gilmore
Publisher:Charles Gilmore
Chapter1: Introduction
Section: Chapter Questions
Problem 11CQ
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Question
Where does the value for yc in step two come from?
Expert Solution
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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