A W16×40 steel wide-flange beam is strengthened by bolting C10×20 steel channel shapes to the top and bottom flanges. The built-up beam must support a shear force of 50 kips.
3/4-in.-diameter steel bolts are used to connect the channel to the flanges. The allowable shear stress in the bolts is 14 ksi.
Determine the maximum longitudinal bolt spacing s required to support the 50-kip shear force.
