A composite beam is fabricated by bolting two 2.7-in.-wide by 14-in.-deep timber planks to the sides of a 0.6-in. by 14-in. steel plate. The moduli of elasticity of the timber and the steel are 1640 ksi and 28400 ksi, respectively. The simply supported beam spans a distance of 15 ft and carries two concentrated loads P, which are applied as shown. Assume LAB=LCD= 5 ft, LBC = 5 ft, b = 2.7 in., d = 14 in. and t = 0.6 in. (a) Determine the maximum bending stresses ot, os produced in the timber planks and the steel plate if P = 2.5 kips. (b) Assume that the allowable bending stresses of the timber and the steel are 1450 psi and 26600 psi, respectively. Determine the largest acceptable magnitude for concentrated loads P. (You may neglect the weight of the beam in your calculations.)
A composite beam is fabricated by bolting two 2.7-in.-wide by 14-in.-deep timber planks to the sides of a 0.6-in. by 14-in. steel plate. The moduli of elasticity of the timber and the steel are 1640 ksi and 28400 ksi, respectively. The simply supported beam spans a distance of 15 ft and carries two concentrated loads P, which are applied as shown. Assume LAB=LCD= 5 ft, LBC = 5 ft, b = 2.7 in., d = 14 in. and t = 0.6 in. (a) Determine the maximum bending stresses ot, os produced in the timber planks and the steel plate if P = 2.5 kips. (b) Assume that the allowable bending stresses of the timber and the steel are 1450 psi and 26600 psi, respectively. Determine the largest acceptable magnitude for concentrated loads P. (You may neglect the weight of the beam in your calculations.)
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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3.2.)
Transcribed Image Text:5:44 PM
← CE104.1T.22.23 Task 6
3 of 4
(a) o₁ =
i
Answers:
ksi.
(b) P =
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ksi, o, =
i
Kips.
LAB
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B
LBC
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Transcribed Image Text:A composite beam is fabricated by bolting
two 2.7-in-wide by 14-in.-deep timber planks
to the sides of a 0.6-in. by 14-in. steel plate. The
moduli of elasticity of the timber and the steel
are 1640 ksi and 28400 ksi, respectively. The
simply supported beam spans a distance
of 15 ft and carries two concentrated loads P,
which are applied as shown. Assume LAB = LCD=
5 ft, LBc5 ft, b = 2.7 in., d = 14 in. and t = 0.6 in.
(a) Determine the maximum bending stresses
o, os produced in the timber planks and the
steel plate if P = 2.5 kips.
(b) Assume that the allowable bending stresses
of the timber and the steel are 1450 psi
and 26600 psi, respectively. Determine the
largest acceptable magnitude for concentrated.
loads P. (You may neglect the weight of the
beam in your calculations.)
LAB
B
LBC
LCD
D
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