$6\mathrm{.}9-1$

Calculate the distance $e$ from the centerline

of the web of a C $1540$ channel section to the shear

center $S($see figure$).$ Note: For purposes of analysis,

consider the flanges to be rectangles with thickness

$t_f$ equal to the average flange thickness given in Table

$F-3(a)$ in Appendix F$.$