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U-Shaped Residence with Woodworks Shearwalls

U-Shaped Residence with Woodworks Shearwalls

U-Shaped Residence with Woodworks Shearwalls

(OP)
I don't quite remember if I saw some comments about this before but recently when I tried analyzing a U-shaped residence in Woodwork's Shearwalls software I noticed that it didn't accurately handle the gap in the diaphragm between the two arms of the u-shape. The software essentially treated the load distribution to the shearwalls from the diaphragm as if the discontinuity (created by the u-shape) did not exist. What have others encountered in this regard?

In the end, I simply created three different models of the same residence, one u-shaped and two L-shaped, and then applied some logic as to what numbers seemed reasonable in assigning the loads to each shearwall. I guess this is why computers have not completely taken over our industry yet... give it a few more years though.

A confused student is a good student.
Nathaniel P. Wilkerson, PE
www.medeek.com

RE: U-Shaped Residence with Woodworks Shearwalls

It could be that the discontinuity is so small that the numbers just calc out to appear that way.

If we're talking two long wings connected by a short bottom than I would expect a big difference in load distribution but if it was short projections on the U I would be inclined to ignore the discontinuity. The line between long and short projections is fuzzy though.

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