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eam. Compute the concentrated load at midspan that will cause a bending stress Compute the deflection at midspan and at the quarter points. (Assume that Sx=

eam. Compute the concentrated load at midspan that will cause a bending stress Compute the deflection at midspan and at the quarter points. (Assume that Sx=

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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3. An 8-in.-wide by 12-in.-deep redwood timber beam (S4S) is used as a 20-ft-long simply supported beam. Compute the concentrated load at midspan that will cause a bending stress of 1350 psi. Compute the deflection at midspan and at the quarter points. (Assume that Sx= 165 in', and E= 1300 ksi).
Transcribed Image Text:3. An 8-in.-wide by 12-in.-deep redwood timber beam (S4S) is used as a 20-ft-long simply supported beam. Compute the concentrated load at midspan that will cause a bending stress of 1350 psi. Compute the deflection at midspan and at the quarter points. (Assume that Sx= 165 in', and E= 1300 ksi).
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In the second part of this question, from where the got 1300 x10^3 x1152?

 

can you please explain it

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