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Design and Construction
A round boom 55 ft long is subjected to a centric axial end load of 22, 000 lbs compression when it is making an angle of 45
o
with the horizontal. The weight of timber is 34 lb/ft
3
. The allowable stress is \(1, 600 (1- \frac{L}{60d})\). What is the size of the boom? Neglect the effect of the lateral buckling.
11.06 inches
17.61 inches
13.82 inches
12.47 inches
Answer:
12.47 inches
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