A horizontal Top Beam is part of a container lifting gear as shown above. Sketch a Free Body Diagram (FBD) for the horizontal top beam detailed in the image below. You may assume that the beam sling chains (F) are at an angle of 45° to the horizontal at the lifting points shown. In the FBD you should show the shear force and bending moment diagrams (in the y–z plane) for the horizontal beam. Note: Use these 3 steps to help draw the FBD: . Step 1: Model the whole structure. . Step 2: Model the internal forces in the beam. . Step 3: Draw the shear force and bending moment diagrams.