To obtain a simplified determinate structure, internal _______ are inserted in the indeterminate structure at the assumed locations of inflection points.

Use Robot to determine the magnitude of the beam deflection at A for a steel W16x40 beam. Include the self-weight of the beam. Let w = 3.6 kips/ft, P = 50 kips, L1 = 10 ft, and L2 = 15 ft.

Determine the beam slope at B. Let w = 2.7 kip/ft, L1 = 33 ft, and L2 = 21 ft. Assume EI = constant.

Use Robot to determine the force in member AD. Use a consistent material and cross section for the truss members. Delete the self-weight of the members. Let P = 17 kN, L1 = 6 m, and L2 = 4 m.

Determine the distribution factor DFBC. Let w1 = 1.4 kip/ft, w2 = 2.9 kip/ft, L1 = 37 ft, and L2 = 20 ft. Assume EI = constant.

Determine the slope at A that would be caused by the distributed load if the fixed support was a pin support, instead. Let w = 3 lb/in., a = 108 in., and EI = 172 × 106 lb·in.2.

Use the portal method to determine the magnitude of the approximate shear in girder GH. Let P1 = 13.0 kN, P2 = 39.0 kN, L1 = 9 m, L2 = 5 m, and L3 = 7 m.

Use Robot to determine the magnitude of the vertical reaction force at A. Let w = 19 kN/m, and L = 9 m. Delete the self-weight of the beam.

Use the portal method to determine the magnitude of the approximate shear in girder HI. Let P1 = 13.0 kN, P2 = 35.4 kN, L1 = 10 m, L2 = 6 m, and L3 = 6 m.

Determine the magnitude of the bending moment at C. Let w = 2.5 kip/ft, L1 = 19 ft, and L2 = 18 ft. Assume EI = constant.