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 CD. Let F1 = 350 lb, F2 = 900 lb, and L = 5 ft.

The influence line for the internal bending moment at C would look like which of the following?

Determine the vertical displacement of joint B. Assume A = 2 in.2 and E = 29,000 ksi for each member. Let P = 610 lb and L = 8 ft.

The beam supports a single live load of 2,980 lb. Determine the maximum negative shear that can be developed at point B. Assume the support at A is a pin and C is a roller. The influence lines for VB and MB are shown, along with the peak values of the influence lines.

Draw the influence line for the moment at B. What is the line’s maximum value? Let L1 = 3 m and L2 = 10 m.

The beam supports a single live load of 2,130 lb. Determine the maximum negative shear that can be developed at point B. Assume the support at A is a pin and C is a roller. The influence lines for VB and MB are shown, along with the peak values of the influence lines.

The beam supports a single live load of 2,090 lb, a uniform live load of 600 lb/ft, a uniform dead load of 115 lb/ft. Determine the maximum positive shear that can be developed at point B. Assume the support at A is a pin and C is a roller. The influence lines for VB and MB are shown, along with the peak values of the influence lines.

The beam is fixed at wall B. Determine the internal bending moment at point C, which is x = 6 ft to the right of support A. Let L = 30 ft, M = 1,000 lb·ft, P = 750 lb and w0 = 175 lb/ft.

The roof of a single-story storage building shown below, is subjected to a uniformly distributed load of 0.95 kPA over its surface area. Determine the axial load acting on the column D.

Determine the vertical displacement of joint B. Assume A = 2 in.2 and E = 29,000 ksi for each member. Let P = 490 lb and L = 8 ft.