Rigid bar ABCD is loaded and supported as shown. Steel [E = 28400 ksi] bars (1) and (2) are unstressed before the load P is applied. Bar (1) has a cross-sectional area of 0.82 in.2 and bar (2) has a cross-sectional area of 0.41 in.2. After load P is applied, the strain in bar (1) is found to be 700 με.. Assume L₁=69 in., L2=89 in., a=34 in., b=33 in., and c=37 in. Determine: (a) the stresses in bars (1) and (2). (b) the vertical deflection vp of point D on the rigid bar. (c) the load P. Answers: (a) o ₁ (b) VD = (c) P = i i i L a (1) B L2 b ksi, 0₂ = in. kips. (2) C C M. i D P ksi.
Rigid bar ABCD is loaded and supported as shown. Steel [E = 28400 ksi] bars (1) and (2) are unstressed before the load P is applied. Bar (1) has a cross-sectional area of 0.82 in.2 and bar (2) has a cross-sectional area of 0.41 in.2. After load P is applied, the strain in bar (1) is found to be 700 με.. Assume L₁=69 in., L2=89 in., a=34 in., b=33 in., and c=37 in. Determine: (a) the stresses in bars (1) and (2). (b) the vertical deflection vp of point D on the rigid bar. (c) the load P. Answers: (a) o ₁ (b) VD = (c) P = i i i L a (1) B L2 b ksi, 0₂ = in. kips. (2) C C M. i D P ksi.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
![Rigid bar ABCD is loaded and supported as shown. Steel [E = 28400 ksi] bars (1) and (2) are unstressed before
the load P is applied. Bar (1) has a cross-sectional area of 0.82 in.² and bar (2) has a cross-sectional area
of 0.41 in.². After load P is applied, the strain in bar (1) is found to be 700 μe. Assume L₁=69 in., L₂-89 in., a=34
in., b=33 in., and c-37 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
Answers:
(a) 0₁
=
(b) VD =
(c) P=
i
i
i
L₁
a
(1)
B
L2
b
ksi, 0₂ =
in.
kips.
(2)
C
i
D
P
ksi.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5daccb78-2e97-407d-8a2f-780b21ee96a4%2Fc9042342-48e6-4e5e-8a93-48c1387160da%2Fo4u8zj_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Rigid bar ABCD is loaded and supported as shown. Steel [E = 28400 ksi] bars (1) and (2) are unstressed before
the load P is applied. Bar (1) has a cross-sectional area of 0.82 in.² and bar (2) has a cross-sectional area
of 0.41 in.². After load P is applied, the strain in bar (1) is found to be 700 μe. Assume L₁=69 in., L₂-89 in., a=34
in., b=33 in., and c-37 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
Answers:
(a) 0₁
=
(b) VD =
(c) P=
i
i
i
L₁
a
(1)
B
L2
b
ksi, 0₂ =
in.
kips.
(2)
C
i
D
P
ksi.
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