Problem $9-23$ Do only LRFD$.$ Address only Moment capacity. $($i$.$e$.$ you

do not have to check shear or deflections$).$

$9-23.$ What service live uniform load can be placed on a W$1876(F_y=50$ksi$)$

that has lateral bracing provided at its ends only? The beam is simply supported

and has a span of $22$ ft $.$ The dead uniform service load is $1\frac{k}{f}t$ plus the beam self$-$

weight. $($Ans$.4\mathrm{.}47\frac{k}{f}t$ LRFD$)$