Need ideas for barn beam replacement
Unfortunately, only one photo turned out. The lights in the press house are bright to the human eye, but not to the camera. Anyways, the attached image works well enough to give you the idea.
The barn has kind of a mezzanine against the wall. The joists extend from the exterior wall to a series of beams supported by posts. The roof works much the same, being supported by posts aligned with the 1st floor posts. The posts are 14′ apart on center, and the beams and posts are all 8 1/2″ in diameter. Every post has a joint where two beams meet, without exception, each beam being 14′ long.
This is a repeating element; the barn is about 180′ long.
The idea is to remove one set of posts and beams, as well as joists/floor. So we’d need a beam to span 28′, and a way of attaching it. Also, the roof would need to be supported during this process. That’s easier said than done, seeing as the ceiling is about 20′ off the slab.
Interestingly enough, the roof does seem to support itself, something we’ve learned from accidentally knocking posts off their footings from time to time. But I wouldn’t want to count on that.
The roof is comprised of trusses that span the middle of the barn, and rest on the uppermost beams. Rafters run from the beam to the exterior wall, following the same roof pitch.
How would you go about this? What kind of beam would you use? Would you run new posts up from the slab (on footings, of course), maybe steel? How would you support the roof while removing the old beams?
Edited 1/27/2008 5:05 pm ET by Biff_Loman