Timber/Steel Pavilion
Timber/Steel Pavilion
(OP)
I have a client using an Architect that wants a pavilion ~13'x18', 6:12 hipped roof, that doesn't want any kickers/knee braces at the tops of the columns. They are allowing me to use HSS columns though. Thinking of running the HSS up to the top of the perimeter beams and using beam pockets welded to the HSS with enough bolts in the paralm/glulam to take the moment couple from the eccentric roof loading and theoretical moment from the vertical loads on the beams. Any problems conceptually with this? The loads are fairly light-I haven't sized the HSS yet but I have a feeling its going to end up a 6x6.
Also they want the whole thing vaulted. With a hip roof I don't know of any way to make it entirely vaulted. What I have done in the past is treat the ridge/hips as beams and support the reactions at the end of the ridge through a separate beam/column. Anything I am missing here?
Also they want the whole thing vaulted. With a hip roof I don't know of any way to make it entirely vaulted. What I have done in the past is treat the ridge/hips as beams and support the reactions at the end of the ridge through a separate beam/column. Anything I am missing here?






RE: Timber/Steel Pavilion
If you go with moment frames, I'd lean towards a dimensionally stable engineered wood product over glulam. Moment connection probably means grabbing the beams high and low. That can be problematic for members that can be expected to shrink and potentially split at the bolts.
You're thinking manufactured wood trusses, right? I did some two way vaulted hips as a truss designer. They work fine at small scales like this if you can keep the ceiling pitch under half of the roof pitch. It will lay out just like a regular hip roof in plan.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Timber/Steel Pavilion
RE: Timber/Steel Pavilion
For these situations I always use cantilevered columns. Like kootk I have similar hesitation to a wood moment frame.
RE: Timber/Steel Pavilion
They literally want the entire thing vaulted with no verticals. Even with trusses-I can't imagine its not going to sag over time?
RE: Timber/Steel Pavilion
RE: Timber/Steel Pavilion
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Timber/Steel Pavilion
RE: Timber/Steel Pavilion