Under the dead load of the arch in Figure P8.25, the hinge at (B) is expected to

Question:

Under the dead load of the arch in Figure P8.25, the hinge at \(B\) is expected to displace 3 in. downward. To eliminate the 3 -in. displacement, the designers will shorten the distance between supports by moving support \(A\) to the right. How far should support \(A\) be moved?

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