The joist AB used in housing construction is to be made rom 8-in. by 1.5-in. Southern-pine boards. The design oading on each board is placed as shown in the figure below. The allowable bending stress for the wood is Jallow 1.5 and the allowable shear stress is Tallow = 180 psi. Assume that the beam is simply supported from the walls at A and B. (Figure 1) Figure 1 of 1 150 lb 150 lb 150 lb L < > Determine the largest room width I that the boards can span. Express your answer to three significant figures and include the a L= 32.0 Submit ft My Answers Give Up ? Incorrect; Try Again; 3 attempts remaining

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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The joist AB used in housing construction is to be made
from 8-in. by 1.5-in. Southern-pine boards. The design
loading on each board is placed as shown in the figure
below. The allowable bending stress for the wood is
Jallow 1.5 and the allowable shear stress is
Tallow = 180 psi. Assume that the beam is simply supported
from the walls at A and B. (Figure 1)
Figure 1 ▾of 1
8 in.
150 lb L
150 lb L
150 lb L
1.5 in.
Determine the largest room width I that the boards can span.
Express your answer to three significant figures and include the appropriate units.
L = 32.0
Submit
μA
ft
My Answers Give Up
?
Incorrect; Try Again; 3 attempts remaining
Transcribed Image Text:The joist AB used in housing construction is to be made from 8-in. by 1.5-in. Southern-pine boards. The design loading on each board is placed as shown in the figure below. The allowable bending stress for the wood is Jallow 1.5 and the allowable shear stress is Tallow = 180 psi. Assume that the beam is simply supported from the walls at A and B. (Figure 1) Figure 1 ▾of 1 8 in. 150 lb L 150 lb L 150 lb L 1.5 in. Determine the largest room width I that the boards can span. Express your answer to three significant figures and include the appropriate units. L = 32.0 Submit μA ft My Answers Give Up ? Incorrect; Try Again; 3 attempts remaining
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