Answered: What should be the nominal…

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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Question

What should be the nominal cross-sectional dimensions for
the beam of least weight that supports a total uniformly distributed load of
12 kips on a simple span and consists of Hem Fir No. 1 grade? Consider only
the limiting shear stress.

Expert Solution

Step 1:Calculating the area:

Calculating the area:

Fv= $\frac{1.5 V}{A}$

Using the code, and refer table, reference design value for the visually graded lumber.

For the species and commercial grade of number 2, the value of shear is 170 psi.

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