The floor of an apartment building is subjected to a uniformly distributed load of 31.7 psf over its surface area. Determine the axial load acting on column O.

Draw the influence line for the moment at B. What is the line’s minimum value? Let L1 = 4 m and L2 = 14 m.

The roof truss is pin supported at A and roller supported at E. Determine the magnitude of the force in member CD. Let F1 = 30 kN and F2 = 15 kN.

Determine the vertical displacement of joint A if members AE and DE experience a temperature increase of 37°C. Let L = 8 m and α = 10.1E-6/°C.

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 AI. Let F1 = 450 lb, F2 = 800 lb, and L = 5 ft.

Assume that w0 = 187 N/m and L = 2 m. Determine the shear-force equation V(x) for this beam and loading.

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 = 250 lb, F2 = 600 lb, and L = 5 ft.

Determine the vertical displacement of joint B. Assume A = 2 in.2 and E = 29,000 ksi for each member. Let P = 540 lb and L = 8 ft.

Determine the beam deflection at point H. Assume that EI = 3.88 × 1010 kN-mm2 is constant.

Which conjugate beam corresponds to real beam 5?