A laminated wood beam consists of eight 1.75 in. x 5.50-in. planks glued together to form a section b = 5.50 in. wide by d = 14 in. deep, as shown. If the allowable strength of the glue in shear is 130 psi, determine (a) the maximum uniformly distributed load w that can be applied over the full length of the beam if the beam is simply supported and has a span of L = 25 ft. (b) the shear stress in the glue joint at H, which is located 3.5 in. above the bottom of the beam and at a distance of x = 72 in. from the left support. Assume that the beam is subjected to the load w determined in part (a). (c) the maximum tension bending stress in the beam when the load of part (a) is applied. 1 (tуp.) H L Determine the moment of inertia for the cross-section about the z centroidal axis. Answer: I, = i in.4
A laminated wood beam consists of eight 1.75 in. x 5.50-in. planks glued together to form a section b = 5.50 in. wide by d = 14 in. deep, as shown. If the allowable strength of the glue in shear is 130 psi, determine (a) the maximum uniformly distributed load w that can be applied over the full length of the beam if the beam is simply supported and has a span of L = 25 ft. (b) the shear stress in the glue joint at H, which is located 3.5 in. above the bottom of the beam and at a distance of x = 72 in. from the left support. Assume that the beam is subjected to the load w determined in part (a). (c) the maximum tension bending stress in the beam when the load of part (a) is applied. 1 (tуp.) H L Determine the moment of inertia for the cross-section about the z centroidal axis. Answer: I, = i in.4
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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![A laminated wood beam consists of eight 1.75 in. x 5.50-in. planks glued together to form a section b = 5.50 in. wide by d = 14 in.
deep, as shown. If the allowable strength of the glue in shear is 130 psi, determine
(a) the maximum uniformly distributed load w that can be applied over the full length of the beam if the beam is simply supported
and has a span of L = 25 ft.
(b) the shear stress in the glue joint at H, which is located 3.5 in. above the bottom of the beam and at a distance of x = 72 in. from
the left support. Assume that the beam is subjected to the load w determined in part (a).
(c) the maximum tension bending stress in the beam when the load of part (a) is applied.
t (typ.)
H
L
Determine the moment of inertia for the cross-section about the z centroidal axis.
Answer: I, = i
in.4](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffdc53f65-3c1d-4329-9ba1-3b4fc65bba6f%2F6e9a37d1-cf95-4583-b138-f52c9917d46c%2Fc9lxlh_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A laminated wood beam consists of eight 1.75 in. x 5.50-in. planks glued together to form a section b = 5.50 in. wide by d = 14 in.
deep, as shown. If the allowable strength of the glue in shear is 130 psi, determine
(a) the maximum uniformly distributed load w that can be applied over the full length of the beam if the beam is simply supported
and has a span of L = 25 ft.
(b) the shear stress in the glue joint at H, which is located 3.5 in. above the bottom of the beam and at a distance of x = 72 in. from
the left support. Assume that the beam is subjected to the load w determined in part (a).
(c) the maximum tension bending stress in the beam when the load of part (a) is applied.
t (typ.)
H
L
Determine the moment of inertia for the cross-section about the z centroidal axis.
Answer: I, = i
in.4
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