Load moves along the three-hinged, parabolic  arch ABC, shown in Figure P8.24. Construct t...

Load moves along the three-hinged, parabolic  arch ABC, shown in Figure P8.24. Construct the influence lines for the reactions at C, and shear, axial load and  moment at point D. The equation for the parabolic arch is y = 4hx2/L2. If a point load P = 3 kips is applied at B, compute shear, axial load and moment at D.