where H, V, M represent the "components" of the reaction force A (built-in moment Mis positive clockwise) and C = EJdx/ds = cost is a quantity related to
Figure 7. Discretisation of the half arch in 14 elements with Ax = cost, with indication of the geometrical quantities useful to determine the corresponding elastic weights (quotes in m).
determined without the constant proportionality factor E = 17000000 t/m2, Young's modulus of the iron, i.e. AG' = As/J. The coordinates xs, ys, xy, yx and total elastic weight G' = EG are finally found as:
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