Boomerang-shaped buildings 1

[Boiler106]

For a boomerang shaped building, does anyone see an alternative to braced frames and double column lines at a and b in the sketch below?

Building is located in the southeast, low seismic. Single story, tilt panels, bar joist and metal deck roof.

i feel like sliding expansion joints would bind at these intersections

 

[milkshakelake]

If you have a rigid roof diaphragm, or the metal deck with diagonal horizontal members, and those solid long walls are shear walls, there's enough of a perpendicular lateral component to not need bracing at a and b. I wouldn't use expansion joints, and keep the whole thing continuous. The tricky part is chord continuity at the angles of the long walls.

 

[dik]

Because of the transition in direction, I would likely put a joint at a and b and treat them as separate buildings. The individual components appear to be big enough.

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

[Boiler106]

@milkshakelake thats an interesting though but im not comfortable stretching a building 1000' without some consideration for expansion. not sure the diaphragm aspect ratio will work out either