This is my first try at the 4.0 vignette. It took about 9 minutes, including checking my final solution, so I am wondering if I've overlooked anything important.
The checklist I used was:
***Use a post-and-beam structural system***
***Start with upper roof, then go to lower roof***
1. Columns at all corners
2. Columns spaced no more than about 40'-0" (max. recommended beam span)
3. Columns at upper level continuous down to lower level (all upper floor columns redrawn on lower level)
4. Beams drawn under clerestory
5. Beams drawn at all walls shared between upper and lower floor
6. Joists span in short direction, spaced at 48" o.c. with max. span about 30'-0" (drawn at centerlines of columns)
7. All Beams and Joists are supported at both ends (beams only supported by columns, joists supported by beams or columns)
8. No beam-to-beam connections (all beams terminate at a column)
9. Roof decking spans perpendicular to joist span (drawn at centerlines of columns, same as joists)
10. No beams drawn only to provide lateral stability (seismic and wind not a factor)
Note: At the covered entry, the joists span in the long direction because beams were already in place from the framing of the bays to the north and south.
Any comments will be helpful. Thanks!