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Chapter 9: Q19Q (page 230)

Materials such as ordinary concrete and stone are very weak under tension or shear. Would it be wise to use such a material for either of the supports of the cantilever shown in Fig. 9–9? If so, which one(s)? Explain

Short Answer

Expert verified

Concrete and stone can be used for the right-hand support of the cantilever.

Step by step solution

01

Understanding cantilever beam

In a cantilever beam, the left-hand support pulls the beam downward. So, the beam should be pulled in the upward direction on the support of the beam.

02

Explaining the use of concrete and stone for either of the supports on the beam

Stone and concrete are the types of materials that are weak under tension, and the left support of the cantilever beam undergoes greater tension. So, concrete and stone should not be used in the left support.

The right-hand support of the beam experiences compression force; so using concrete or stone can be appropriate.

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