$(6\mathrm{.}4-4)$ A simply supported wide$-$flange beam of

span length $L$ carries a vertical concentrated load $P$

acting through the centroid $C$ at the midpoint of the

span $($see figure$).$ The beam is attached to supports

inclined at an angle $$ to the horizontal.

Determine the orientation of the neutral axis and

calculate the maximum stresses at the outside cor$-$

ners of the cross section $($points $A,B,D,$ and $E)$ due

to the load $P.$ Data for the beam arc W $25044\mathrm{.}8$

section, $L=3\mathrm{.}5m,P=18kN,$ and $=26\mathrm{.}57.$ Note:

See Tablc F$-1($b$)$ of Appendix F for the dimensions

and properties of the beam.