Rigid bar ABCD is loaded and supported as shown. Steel [E = 30600 ksi] bars (1) and (2) are unstressed before the load P is applied. Ba (1) has a cross-sectional area of 0.6 in.² and bar (2) has a cross-sectional area of 0.37 in.2. After load P is applied, the strain in bar (1) is found to be 760 μe. Assume L₁=65 in., L₂-89 in., a=28 in., b-21 in., and c-35 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) σ₁ = (b) VD = i (c) P= i LA a (1) B L2 b in. 2 ksi, 0₂ = kips. C D P ksi.
Rigid bar ABCD is loaded and supported as shown. Steel [E = 30600 ksi] bars (1) and (2) are unstressed before the load P is applied. Ba (1) has a cross-sectional area of 0.6 in.² and bar (2) has a cross-sectional area of 0.37 in.2. After load P is applied, the strain in bar (1) is found to be 760 μe. Assume L₁=65 in., L₂-89 in., a=28 in., b-21 in., and c-35 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) σ₁ = (b) VD = i (c) P= i LA a (1) B L2 b in. 2 ksi, 0₂ = kips. C D P ksi.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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![Rigid bar ABCD is loaded and supported as shown. Steel [E = 30600 ksi] bars (1) and (2) are unstressed before the load P is applied. Bar
(1) has a cross-sectional area of 0.6 in.² and bar (2) has a cross-sectional area of 0.37 in.². After load P is applied, the strain in bar (1) is
found to be 760 μe. Assume L₁-65 in., L₂-89 in., a=28 in., b-21 in., and c-35 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) σ₁ =
(b) VD = i
(c) P = i
i
L
a
(1)
B
L2
b
ksi, O₂ =
in.
kips.
M.
D
P
ksi.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F71d65772-cb7a-4665-962e-deee5219e4e6%2F288fbc07-5a34-48bb-932e-d4663d37fbd1%2F4ar9ete_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Rigid bar ABCD is loaded and supported as shown. Steel [E = 30600 ksi] bars (1) and (2) are unstressed before the load P is applied. Bar
(1) has a cross-sectional area of 0.6 in.² and bar (2) has a cross-sectional area of 0.37 in.². After load P is applied, the strain in bar (1) is
found to be 760 μe. Assume L₁-65 in., L₂-89 in., a=28 in., b-21 in., and c-35 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) σ₁ =
(b) VD = i
(c) P = i
i
L
a
(1)
B
L2
b
ksi, O₂ =
in.
kips.
M.
D
P
ksi.
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