Chapter 16, Problem 16.16P

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9th Edition

Braja M. Das + 1 other

ISBN: 9781305970939

Textbook Problem

A square footing on sand is subjected to an eccentric load as shown in Figure 16.20. Using Meyerhof’s *effective area* concept, determine the gross allowable load that the footing could carry with *F _{s} =* 4. Given: γ = 16 kN/m

To determine

Find the gross allowable load that the footing could carry using the effective area concept.

Explanation

Given information:

The unit weight of the soil

The value of cohesion

The soil friction angle

The location of depth of footing base

The width of the footing *B* is 1.75 m.

The value of eccentricity *x* is 0.25 m.

The factor of safety value

Calculation:

Determine the effective width of the footing using the relation.

Substitute 1.75 m for *B* and 0.25 for *x*.

The effective length of the footing is taken as the larger value of

Take

Determine the shape factor

Here,

Refer Table 16.2, “Bearing-capacity factors

For

The value of

Substitute 1.25 m for

Determine the depth factor

Substitute 1.3 m for

Determine the shape factor

Substitute 1.25 m for

Determine the depth factor

Substitute

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