The cross-sectional dimensions of a beam are shown. Assume b=2.5 in., t-tw-0.375 in. and d=3 in. (a) If the bending stress at point K is 2720 psi (T), determine the internal bending moment M₂ acting about the z centroidal axis of the beam. (b) Determine the bending stress oH at point H (positive if tension, negative if compression). H K Answers: (a) M₂ = (b) oH = bf i i lb-ft. psi.

Structural Analysis
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Chapter2: Loads On Structures
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The
cross-sectional dimensions of a beam are shown. Assume b=2.5 in., t-tw-0.375 in. and d=3 in.
(a) If the bending stress at point K is 2720 psi (T), determine the internal bending moment M₂ acting about the z centroidal axis of the
beam.
(b) Determine the bending stress o at point H (positive if tension, negative if compression).
H
K
Answers:
(a) M₂= i
(b) oH = i
tw
lb-ft.
psi.
Transcribed Image Text:The cross-sectional dimensions of a beam are shown. Assume b=2.5 in., t-tw-0.375 in. and d=3 in. (a) If the bending stress at point K is 2720 psi (T), determine the internal bending moment M₂ acting about the z centroidal axis of the beam. (b) Determine the bending stress o at point H (positive if tension, negative if compression). H K Answers: (a) M₂= i (b) oH = i tw lb-ft. psi.
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