I have a relatively large (500'x400'x 25' tall) single-story building where the client is looking to put a 50'x50' penthouse structure on the roof. The penthouse will be fairly far away (more than 50') from any roof edge. I'm checking the existing building bracing for the increased wind loads...
Most manufacturers list capacities for composite metal deck for “no” studs and “full” studs with interpolation allowed between the values. In the past I’ve used (perhaps conservatively in some cases) the no studs value even when studs are provided at the steel beams. My question is if the...
On a current project, we've gotten a request from the contractor to hang 1" diameter sprinkler piping directly from the metal roof deck using Sammy x-press anchors (expansion-style hanger installed from the bottom of the deck flute). We get these requests every so often on projects and usually...
We're working on a project that's just in schematic design and the architect wants to look at using glulam beams combined with a 3" metal roof deck (glulam spacing will be about 8'-0" on-center). The framing at the perimeter of the roof will be steel beams, not wood; i.e. the glulams are just...
I'm working on a project where we have designed some retrofits for existing roof joists to increase their capacity. In particular, we are proposing to weld a 5/8" rod to each top chord of the joists (which are a pair of 1.75"x2"x1/4" angles). The roof system consists of metal deck (supported...
Hi - new to this forum, but based on my experience with this site I'm hoping someone may be able to shed some light on this question for me.
I'm working on a project where we have designed some retrofits for existing roof joists to increase their capacity. In particular, we are proposing to...
