Question

The frame ABCD (Figure 2) is subject to the distributed loadw The supports do not move 5.2 kN/mas shown. The dimensions are H-4 m and L 20 m EI is constant in each span. Learning Goal: To use the slope-deflection equations to analyze the moments in a frame with no sidesway. The slope-deflection equations for a frame member are given below, where N signifies the near end, F means the far end Part A - Write the slope-deflection equations , ? , and FEM is the fixed end moment. The first equation applies to internal spans or end spans that are toed supported. The second applies to end spans that are pin or roler All three spans are txed supported end spans, so MN-2Ek(28x + ?F-3p) + (FEM)N must be applied twice to each one. There are only two unknown angles, ?? and ??. Use the slope-deflection equations for each span to complete the equations below. View Available Hint(s) The sign convention for these equations is that a positive moment is clockwise and positive angles are measured clockwise A frame will not displace left or right (known as sidesway) when it MAB Elec + EIec EI0c+ EI0c+ Figure 20f2 EIOB+ kN-m kN-m kN-m El0c + kN-m MDC = Elec+ kN-m

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