Analyze the Vierendeel truss in Figure P11.31 by moment distribution. Draw the shear and moment curves for members \(A B\) and \(A F\). Sketch the deflected shape, and determine the deflection at midspan. Given: \(E I\) is constant, \(E=200 \mathrm{GPa}\), and \(I=250 \times 10^{6} \mathrm{~mm}^{4}\).

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A 4 m 100 KN E B 4 m- C 3 m