Assuming that the live loads are transmitted to the bottom chords of the truss, draw the influence line for the force in member DH. What is the line’s maximum value? Let L = 12 ft.

A truck exerts wheel reactions P1 = 10 kips and P2 = 4 kips on the deck of a bridge. Determine the maximum positive shear at C. Assume the truck only travels in the direction shown. The influence lines for VC and MC are shown, along with the peak values of the influence lines.

The roof truss is pin supported at A and roller supported at E. Determine the magnitude of the force in member CD. Let F1 = 10 kN and F2 = 6 kN.

Assume that w0 = 115 N/m and L = 3 m. Determine the shear-force equation V(x) for this beam and loading.

Draw the influence line for the moment at B. What is the line’s maximum value? Let L1 = 3 m and L2 = 11 m.

The relations between M/EI, slope, and deflections are the same as the relations between load, shear, and bending moment.

Draw the influence line for the vertical reaction at C. What is the line’s maximum value? Let L1 = 5 m and L2 = 13 m.

Determine the magnitude of the reaction moment at A. Let P1 = 40.2 kips, P2 = 48.5 kips, and a = b = c = d = 9 ft.

The beam is fixed at wall B. Determine the internal bending moment at point C, which is x = 7 ft to the right of support A. Let L = 30 ft, M = 1,000 lb·ft, P = 800 lb and w0 = 225 lb/ft.

The truss is pin supported at A and rocker supported at E. Assume all members are pin connected. Determine the magnitude of the force in member EF. Let F1 = 350 lb, F2 = 700 lb, and L = 5 ft.