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9th Edition

Barry J. Goodno + 1 other

Publisher: Cengage Learning

ISBN: 9781337093347

Chapter 5, Problem 5.5.27P

Textbook Problem

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A small dam of a height *h = *6 ft is constructed of vertical wood beams *AB, *as shown in the figure. The wood beams, which have a thickness *I = *2.5 in., are simply supported by horizontal steel beams at *A *and Ä Construct a graph showing the maximum bending stress tram in the wood beams versus the depth *d *of the water above the lower support at *B. *Plot the **stress0 _{m}_{a}_{s}_{}_{}**(psi) as the ordinate and the depth

To determine

Graph showing the maximum bending stress in the wood beam and graph of the stress as the ordinate and the depth as the abscissa.

**Given information:**

**Formula used:**

**Calculation:**

Let b be the width of beam and q_{o} as the intensity of load at depth d.

We know that,

Now we will find the reaction at point A;

And now the reaction at B;

Calculate the moment at C;

The section modulus will be;

We know the formula for the maximum stress, i.e

Mechanics of Materials (MindTap Course List)

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