The roof truss is pin supported at A and roller supported at E. Determine the magnitude of the force in member CD. Let F1 = 5 kN and F2 = 5 kN.

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

Determine the vertical displacement of joint B. Assume A = 2 in.2 and E = 29,000 ksi for each member. Let P = 590 lb and L = 8 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 CD. Let F1 = 350 lb, F2 = 900 lb, and L = 5 ft.

Determine the vertical displacement of joint A if members AE and DE experience a temperature increase of 45°C. Let L = 8 m and α = 9.0E-6/°C.

Determine the vertical displacement of joint B. Assume A = 2 in.2 and E = 29,000 ksi for each member. Let P = 470 lb and L = 8 ft.

Assume that w0 = 183 N/m and L = 2 m. Determine the shear-force equation V(x) for this beam and loading.

Determine the vertical displacement of joint B. Assume A = 2 in.2 and E = 29,000 ksi for each member. Let P = 420 lb and L = 8 ft.

Determine the vertical displacement of joint A if members AE and DE experience a temperature increase of 38°C. Let L = 8 m and α = 9.3E-6/°C.

Draw the influence line for the moment at B. What is the line’s maximum value? Let L1 = 4 m and L2 = 9 m.