Use Robot to determine the magnitude of the axial force in column FI. Assume each member is a steel W16x40, but delete the self-weight of the members. Let P1 = 14.0 kN, P2 = 38.0 kN, L1 = 10 m, L2 = 5 m, and L3 = 6 m.

Identify the moment equation that corresponds to MAB. Let w = 2.0 kip/ft, L1 = 16 ft, and L2 = 20 ft. Assume EI = constant.

Determine the deflection at B that would be caused by the distributed load if the middle support was not there. Let w = 5 lb/in., a = 55 in., and EI = 52 × 106 lb·in.2.

Determine the distribution factor DFBA. Let w = 2.8 kip/ft, L1 = 30 ft, and L2 = 24 ft. Assume EI = constant.

Determine the magnitude of the bending moment at A. Let w = 1.8 kip/ft, L1 = 20 ft, and L2 = 38 ft. Assume EI = constant.

Determine the distribution factor DFBC. Let w = 2.5 kip/ft, L1 = 35 ft, and L2 = 21 ft. Assume EI = constant.

Determine the magnitude of the bending moment at A. Let w = 2.4 kip/ft, L1 = 15 ft, and L2 = 18 ft. Assume EI = constant.

Using the method of consistent deformations, determine the force in member AD. Let P = 29 kN, L1 = 4 m, and L2 = 6 m. Assume EA = constant.

Determine the reaction force at B. Let w = 17 lb/in., a = 68 in., and EI = 273 × 106 lb·in.2.

The beam supports a uniform live load of 399 lb/ft. 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.