(a) The three-hinged arch shown in Figure \(P 12.22\) has a parabolic profile. Draw the influence lines for both the horizontal and vertical reactions at \(A\) and the moment at \(D\).

(b) Compute the horizontal and vertical reactions at support \(A\) if the arch is loaded by a uniform load of \(10 \mathrm{kN} / \mathrm{m}\).

(c) Compute the maximum moment at point \(D\).

Transcribed Image Text:

D w = 10 kN/m B -15 m-15m- 30 m T 12 m