Gable end with lots of windows...bracing question

[jimtheengineer10]

I was asked about the best way to brace a gable end wall with a lot of windows. It is 2x6 construction with pre-engineered trusses with a vaulted ceiling. Attached is a picture from the outside and I will post of a couple from the inside. Would installing a plywood ceiling on the vaulted ceiling work?

 

[jimtheengineer10]

Interior View

 

[jimtheengineer10]

Another interior view

 

[kipfoot]

I'd expect that the wall moves out of plane. If this is the problem you're asking about, then, no, a plywood ceiling won't help you. I think a loft/floor level over the door could serve to laterally brace the end facade. It would add some floor area, provide a visual break from the voluminous space, and it seems like it would be a nice view from up there, too.

Too bad nobody asked you before they started construction, but so it goes. (it also looks like there could be issues with how the roof load is resolved at the gable end and/or rafter bearing)

 

[jimtheengineer10]

They want to keep that area open to above.

What about installing some columns from floor to roof on the inside of the wall? They could wrap it with sheetrock and have a boxed in column.

What about installing a beam on the underside of the trusses from wall to wall? One in the center and one on each side about halfway between the center and the end walls?

 

[JStructsteel]

I would tear it down and do it right. Some full height columns each side of the door designed to take the load. You could also have a transfer beam to take any load coming down from the peak between the triangle windows, and transfer it out to the sides.

If I look at that second picture right, you have a hinge running above the door and windows each side of the door. Will be ok until the wind blows....alot.

 

[dik]

Jim... that's the way I would go, using LVL's or PSL's... and maybe one on the flat at the floor level (dustcatcher).

Dik