For the bridge cross$-$section shown determine the moment in the deck due to a single axle of the design truck for the following conditions:

a$.$ Maximum negative moment at the critical section on the inside face of Girder $2$

b$.$ Maximum positive moment in the span between the Girder $1$ and Girder $2,$ assuming the maximum positive moment in this span occur $4\mathrm{.}5$ ft right of Girder $1.$

c$.$ Use the BT Beam Software to compare the results from the analysis You may use the AASHTO chart or influence line spreadsheet for this problem $($a$-$b$).$

i need with diagrams and tables information in detail please