I'm not sure if this answers your question or not, but I'll take a stab. The reason they list effective wind areas of 20, 50, 100, etc -- the larger the supported area, the lower the probability that that entire surface will see the larger wind gusts simultaneously for whatever the component and...
You should probably also look into adding stiffener plates at those locations where the continuous beams run over the columns (if the compression flange starts to displace relative to the top flange of the beams you can lose stability of the column), especially if you have some heavy components...
I think the "NA" is referring to zones 1 & 2, which show up in all the various "sloped roof" conditions (i.e. gable, etc.) The "flat roof" figure (theta < 10 deg... which would be your condition) only has regions 3, 4, and 5 and those all have non-NA values in the table 27.6-2.
Would it be possible to flip the orientation of the angle so that the vertical leg hugs the corner of the concrete wall (rather than sticking up above the top of wall) ? Would that allow you to still penetrate only at the top of the wall and not the stucco, but by hugging the vertical face of...
Hi all,
I've attached a sketch of a minor dilemma I'm facing while doing a "courtesy" read on an architect friend's home remodeling project. I'm a P.E. structural engineer, but the extent of my experience in wood design was in studying for the P.E. exam...
1.) The proposed design calls for...
