The joists of a floor in a warehouse are to be selected using square timber beams made of oak. The allowable bending stress is ơallow = 3.5 ksi and the allowable shear stress is Tallow = 125 psi. (Figure 1)
The joists of a floor in a warehouse are to be selected using square timber beams made of oak. The allowable bending stress is ơallow = 3.5 ksi and the allowable shear stress is Tallow = 125 psi. (Figure 1)
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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
Transcribed Image Text:If each beam is to be designed to carry 90 lb/ft over a simply supported span of 25 ft, determine the smallest
dimension a of its square cross section.
Express your answer to three significant figures and include the appropriate units.
HA
Value
a =
Units

Transcribed Image Text:The joists of a floor in a warehouse are to be selected
using square timber beams made of oak. The allowable
bending stress is oallow = 3.5 ksi and the allowable
shear stress is Tallow =
125 psi. (Figure 1)
Figure
1 of 1
90 lb/ft
25 ft
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