Problem

An axial load P is supported by a short W8 × 40 column of crosssectional area A = 11.7 in2...

An axial load P is supported by a short W8 × 40 column of crosssectional area A = 11.7 in² and is distributed to a concrete foundation by a square plate as shown. Knowing that the average normal stress in the column must not exceed 30 ksi and that the bearing stress on the concrete foundation must not exceed 3.0 ksi, determine the side a of the plate that will provide the most economical and safe design.

Fig. P8.17

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Solutions For Problems in Chapter 8

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