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The indeterminate (to the first degree) plane frame of uniform section and of the same material shown in Figure 1 is pinned at A, rigid at B and E and

is pinned at F.The frame is subjected to a downwards point load of (27 + b) kN at point C and asecond downwards point load of (13 + c) kN at point D. This loading condition is also shown in Figure 1. The height of the frame is equal to (4 + 0.1*a) m. Take the horizontal reaction at support F as the redundant force. a)Use the flexibility method and table of volume integrals, to determine the appropriate flexibility coefficients, and the value and direction of the redundant force. b)Determine the bending moments at A, B, C, D, E and F, and hence draw a dimensioned sketch of the bending moment diagram.

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