An angle bracket having thickness t = 0.75 in. is attached to the flange of a column by two 5/8-inch diameter bolts (see figure). A uniformly distributed load from a floor joist acts on the top face of the bracket with a pressure p = 275 psi. The top face of the bracket has length L = 8 in. and width b = 3.0 in.
Determine the average bearing pressure σb between the angle bracket and the bolts and the average shear stress τaver in the bolts. (Disregard friction between the bracket and the column.)

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Distributed pressure on angle bracket Floor slab Floor joist Angle bracket Angle bracket