Two C12 x 20.7 channels are joined to 8.5-in. by 0.5-in. plates with 3/4-in. rivets to...

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Two C12 x 20.7 channels are joined to 8.5-in. by 0.5-in. plates with 3/4-in. rivets to form a beam with the cross section shown in the figure. The maximum shear force in the beam is 20 kips. (a) Determine the maximum allowable spacing of the rivets using 5000 psi for the working shear stress. (b) Compute the corresponding maximum bearing stress in the channels. C12 x 20.7 -8.5 in. FIG. P5.98 0.5 in. 12 in. Two C12 x 20.7 channels are joined to 8.5-in. by 0.5-in. plates with 3/4-in. rivets to form a beam with the cross section shown in the figure. The maximum shear force in the beam is 20 kips. (a) Determine the maximum allowable spacing of the rivets using 5000 psi for the working shear stress. (b) Compute the corresponding maximum bearing stress in the channels. C12 x 20.7 -8.5 in. FIG. P5.98 0.5 in. 12 in.

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