(Solved): 4. Idealize the following bridge below as a simply supported bridge with over ...

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4. Idealize the following bridge below as a simply supported bridge with overhangs on both sides. Left overhang (left of \( A \) ) is \( D m \), right overhang (right of \( B \) ) is \( L m \) and the span between \( A \) and \( B \) is \( 2^{*}(L+D) m \). 4.1 Draw an idealized diagram with the dimensions from your ID. 4.2 Find the influence line equations for the reactions at \( A \) and \( B \). 4.3 Draw the influence line diagram for shear at point \( C \) (mid-point of span \( A B \) ) and show values at important points. 4.4 Draw the influence diagram for moment at point \( C \) which is mid-point of Span \( A B \) and show values at important points.