Question

The truck and trailer exerts the wheel reactions shown in (Figure 1) on the deck of the girder bridge. Assume the truck travels in either direction along the center of the deck, and therefore transfers half of the load shown to each of the two side girders. The truck that travels to the left exerts the loads shown in (Figure 2). Assume the splice is a fixed connection and, like the girder, can support both shear and bending moment. Suppose that F1=1.3 kN, F2=2.6 kN, F3=7.8 kN, and F4=5.2 kN

Part A

Determine the largest bending moment exerted in the splice at C. Follow the sign convention.

Answer 1