The 9-k truck exerts the wheel reactions shown on the deck of a girder bridge. Determine...

The 9-k truck exerts the wheel reactions shown on the deck of a girder bridge. Determine (a) the largest live shear it creates in the splice at C, and (b) the largest moment it exerts in the splice. Assume the truck travels in either direction along the center of the deck, and therefore transfers half of the load shown in each of the two side girders. Assume the splice is a fixed connection and, like the girder, can support both shear and moment.