During the moment distribution process, which ground connection stays locked?

Using the slope-deflection equations below, determine the beam slope at C. Let P1 = 19 kips, P2 = 10 kips, L1 = 21 ft, L2 = 11 ft, and L3 = 16 ft. Assume EI = constant.MAC = EIθC / 16 + 47.15MCA = EIθC / 8 + –90.01MCE = EIθC / 8 + 40MEC = EIθC / 16 + –40

Determine the fixed end moment FEMBC with a settlement of 0.6 in. at support B.   As in Chapter 16, include the effect of settlement in the FEM calculation.  Let w = 2.9 kip/ft, L = 30 ft, E = 29,000 ksi and I = 1,650 in.4.

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

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 = 14 kN, L1 = 5 m, and L2 = 4 m.

Determine the fixed end moment FEMBC. Let w = 1.1 kip/ft and L = 28 ft. Assume EI = constant.

Determine the fixed end moment FEMAB. Let P = 20 kips, L1 = 30 ft, and L2 = 15 ft. Assume EI = constant.

Use the portal method to determine the magnitude of the approximate shear in column AE. Let P1 = 36 kN, P2 = 54 kN, L1 = 8 m, L2 = 6 m, L3 = 7 m, and L4 = 5 m.

Use the cantilever method to determine the magnitude of the approximate axial force in column FI. Let P1 = 22.4 kN, P2 = 37.6 kN, L1 = 10 m, and L2 = 7 m.

Determine the distribution factor DFCE. Let P1 = 15 kips, P2 = 16 kips, L1 = 21 ft, L2 = 11 ft, and L3 = 16 ft. Assume EI = constant.