A two$-$span bridge consisting of six TxDOT $5$B$20$ prestressed box beams of $65-$ft long

in each span is shown below. All beams are simply supported and adjacent to one another.

Use PGSuper to design the box beams. Cross slope of the roadway is $-0\mathrm{.}02($ft$/$ft$).$ Compute

the live load moment and shear distribution factors, g$,$ according to $2020$ AASHTO LRFD

Specifications and compare them with the ones calculated by PGSuper. Girder orientation is

normal to roadway $($i$.$e$.,$ skew angle $=0$o $).$

Report the following information from your design:

Prestressing Strands

Total No$.$ of strands

Eccentricity @ CL $($in$.)$

Eccentricity @ End $($in$.)$

NO$.$ of debonded Strands

Live Load Distribution Factor for Moment

$($Strength and Service Limit States$)$

Interior beam:

Exterior beam:

Live Load Distribution Factor for Shear

$($Strength and Service Limit States$)$

Interior beam:

Exterior beam:

$3$

You are welcome to attach any other useful information from the PGSuper design report.

However, do not exceed $10$ pages.

The following information is provided:

$$ cif $=4,500$ psi

$$ cf $=6,000$ psi

$$ Deck type: composite CIP overlay; thickness $=5$ in$.$; weight of overlay $=23\mathrm{.}33$ psf

$2-$in$.$ thick wearing surface

$$ Span length of the beam $($CL of bearing to CL of bearing$)=64\mathrm{.}083$ ft$.$

$0\mathrm{.}5-$in$.$ diameter $270$ ksi low$-$relaxation strands; all strands are straight.

$$ Traffic railing: TxDOT T$551,$ which has a weight of $382$ plf$.$

$$ Use b $=59\mathrm{.}75$ in$.$ to compute the distribution factor $($it is a higher value and on the

conservative side