(a) Draw the influence lines for the reactions at \(B\) and \(E\), the shear between \(C D\), the moment at \(B\) and \(D\) for the girder \(H G\) in Figure P12.18.

(b) If the dead load of the floor system (stringers and slab) is approximated by a uniformly distributed load of \(3 \mathrm{kips} / \mathrm{ft}\), the reaction of the floor beam's dead load to each panel point equals 1.5 kips, and the deadweight of the girder is \(2.4 \mathrm{kips} / \mathrm{ft}\), determine the moment in the girder at \(D\) and the shear just to the right of \(C\).

Transcribed Image Text:

A H B C D E G 1515 15 15 15 F