Architectural Drafting and Design (MindTap Course List)
7th Edition
ISBN: 9781285165738
Author: Alan Jefferis, David A. Madsen, David P. Madsen
Publisher: Cengage Learning
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Question
Chapter 28, Problem 28.12Q
To determine
The meaning of number 4:12 on a roof pitch.
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1. Create Diagrams: Draw the shear and moment
diagrams for the given beam.
8k
15k-ft
B
12 k
-6 ft-
-8 ft--8 ft-
-8 ft-
4k
4 ft 2 ft
10:46
Mechanics of Deform...
← CE104.2T.24.25. FA 1
5 of 6
2.5/10
Rigid bar ABCD is loaded and supported as shown.
Steel [E=27800 ksi] bars (1) and (2) are unstressed
before the load P is applied. Bar (1) has a cross-
sectional area of 0.83 in.² and bar (2) has a cross-
sectional area of 0.45 in.2. After load P is applied, the
strain in bar (1) is found to be 670 με. Assume L₁=58
in., L2-94 in., a=26 in., b=22 in., and c=36 in.
Determine:
(a) the stresses in bars (1) and (2).
(b) the vertical deflection VD of point D on the rigid
bar.
(c) the load P.
A
L₁
B
L2
a
b
223
D
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Chapter 28 Solutions
Architectural Drafting and Design (MindTap Course List)
Ch. 28 - Prob. 28.1QCh. 28 - Prob. 28.2QCh. 28 - Prob. 28.3QCh. 28 - Prob. 28.4QCh. 28 - Prob. 28.5QCh. 28 - Prob. 28.6QCh. 28 - Prob. 28.7QCh. 28 - Prob. 28.8QCh. 28 - Prob. 28.9QCh. 28 - Prob. 28.10Q
Ch. 28 - Prob. 28.11QCh. 28 - Prob. 28.12QCh. 28 - Prob. 28.13QCh. 28 - Prob. 28.14QCh. 28 - Prob. 28.16QCh. 28 - Prob. 28.17QCh. 28 - Prob. 28.18QCh. 28 - Prob. 28.19QCh. 28 - Prob. 28.20QCh. 28 - Prob. 28.21QCh. 28 - Prob. 28.24QCh. 28 - Prob. 28.25QCh. 28 - Prob. 28.26QCh. 28 - Prob. 28.27QCh. 28 - Prob. 28.28QCh. 28 - Prob. 28.29QCh. 28 - Prob. 28.30QCh. 28 - Prob. 28.32QCh. 28 - Prob. 28.33QCh. 28 - Prob. 28.34QCh. 28 - Prob. 28.35QCh. 28 - Prob. 28.37QCh. 28 - Prob. 28.38QCh. 28 - Prob. 28.39Q
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