Two wood beams, each of rectangular cross section (3.0 in x 4.0 in, actual dimensions) are glued together to form a solid beam of dimensions 6.0 in x 4.0 in (see the figure). The beam is simply supported with a span of 8 ft. What is the maximum moment Mmax that may be applied at the left support if the allowable shear stress in the glued joint is 200 psi? (Include the effects of the beam's own weight, assuming that the wood weighs 35 lb/ft^3.) Round your answer to one decimal place. Repeat part (a) if Mmax is based on allowable bending stress of 2500 psi. Round your answer to two decimal places.
Two wood beams, each of rectangular cross section (3.0 in x 4.0 in, actual dimensions) are glued together to form a solid beam of dimensions 6.0 in x 4.0 in (see the figure). The beam is simply supported with a span of 8 ft. What is the maximum moment Mmax that may be applied at the left support if the allowable shear stress in the glued joint is 200 psi? (Include the effects of the beam's own weight, assuming that the wood weighs 35 lb/ft^3.) Round your answer to one decimal place. Repeat part (a) if Mmax is based on allowable bending stress of 2500 psi. Round your answer to two decimal places.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Two wood beams, each of rectangular cross section (3.0 in x 4.0 in, actual dimensions) are glued together to form a solid beam of dimensions 6.0 in x 4.0 in (see the figure). The beam is simply supported with a span of 8 ft.
What is the maximum moment Mmax that may be applied at the left support if the allowable shear stress in the glued joint is 200 psi? (Include the effects of the beam's own weight, assuming that the wood weighs 35 lb/ft^3.) Round your answer to one decimal place.
Repeat part (a) if Mmax is based on allowable bending stress of 2500 psi. Round your answer to two decimal places.

Transcribed Image Text:Two wood beams, each of rectangular cross section (3.0 in. × 4.0 in., actual dimensions) are glued together to form a solid beam of
dimensions 6.0 in. x 4.0 in. (see the figure). The beam is simply supported with a span of 8 ft.
in.
M
6 in.
What is the maximum moment Mmax that may be applied at the left support if the allowable shear stress in the glued joint is 200 psi?
lb
(Include the effects of the beam's own weight, assuming that the wood weighs 35
-) Round your answer to one decimal place.
ft3
Mmax
|kip · ft
Repeat part (a) if Mmax is based on allowable bending stress of 2500 psi. Round your answer to two decimal places.
Mmax
kip · ft
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