he maximum tension bending stress σTσT at any location along the beam, and (b) the maximum compression bending stress σCσC at any location along the beam.
he maximum tension bending stress σTσT at any location along the beam, and (b) the maximum compression bending stress σCσC at any location along the beam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
A flanged wooden shape is used to support the loads shown on the beam. The dimensions of the shape are shown in the second figure. Assume LAB = 9 ft, LBC = 3 ft, LCD = 4 ft, LDE = 2 ft, PC = 1670 lb, PE = 2080 lb, wAB = 680 lb/ft, b1 = 7 in., b2 = 2 in., b3 = 5 in., d1 = 2 in., d2 = 6 in., d3 = 2 in. Consider the entire 18-ft length of the beam and determine:
(a) the maximum tension bending stress σTσT at any location along the beam, and
(b) the maximum compression bending stress σCσC at any location along the beam.

Transcribed Image Text:A flanged wooden shape is used to support the loads shown on the beam. The dimensions of the shape are shown in the second figure.
Assume LAB = 9 ft. LBc = 3 ft, LcD = 4 ft, LDE = 2 ft, Pc = 1670 lb, PE = 2080 lb, WAB= 680 lb/ft, b₁ = 7 in., b₂ = 2 in., b3 = 5 in., d₁ = 2 in., d₂ = 6
in., d3 = 2 in. Consider the entire 18-ft length of the beam and determine:
(a) the maximum tension bending stress o at any location along the beam, and
(b) the maximum compression bending stress oc at any location along the beam.
Pc
PE
↓
WAB
X
Answers:
(a) σT =
(b) oc =
LAB
B
LBC
b₁
b3
C
LCD
-b₂
psi.
psi.
D
d₁
LDE
d₂
dz
E
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