how to detail this beam
 

how to detail this beam?
i meet a problem while doing a structural detailing work now. could you please help out?
the roof beams a11 seat on the intersection line of e-side & n-side (s-side), and the roof are 1:3 sloped on each side.there are w and hss members connecting a11. it is really hard to detail this diag. beam.
is a11 supposed to be "all"?
i do not really understand the problem.