connecting retrofit PSL col into underside of existing steel lintel
connecting retrofit PSL col into underside of existing steel lintel
(OP)
ok smart people. Help me out here.
Clients want to relocate the support between their garage doors to widen one door. I'm proposing the fix as shown in the attached picture. I feel confident on the inside (right side) connections... The trouble is, I cannot for the life of me figure out how to attach the blasted PSL column (3.5x5.25) to the underside of the existing steel angle.
Ron wisely suggested tek screws, and I have looked into that, but to get through the 5/16" thick angle I would be looking at a 3/4" minimum length screw and then I'm about 1/2" into the very fancy Tennessee limestone facade above. I'm pretty sure that would crack the stone, but on the other hand, they did install a light fixture using screws into the stone and they're ok with the result. I've thought about thickening the connection angle instead of using a Simpson angle and welding to the steel, but there's a lot of old, dry wood very nearby and I smell trouble.
So, other screw ideas? Not worry about the tek screws messing up the stone? Weld? Epoxy?
Clients want to relocate the support between their garage doors to widen one door. I'm proposing the fix as shown in the attached picture. I feel confident on the inside (right side) connections... The trouble is, I cannot for the life of me figure out how to attach the blasted PSL column (3.5x5.25) to the underside of the existing steel angle.
Ron wisely suggested tek screws, and I have looked into that, but to get through the 5/16" thick angle I would be looking at a 3/4" minimum length screw and then I'm about 1/2" into the very fancy Tennessee limestone facade above. I'm pretty sure that would crack the stone, but on the other hand, they did install a light fixture using screws into the stone and they're ok with the result. I've thought about thickening the connection angle instead of using a Simpson angle and welding to the steel, but there's a lot of old, dry wood very nearby and I smell trouble.
So, other screw ideas? Not worry about the tek screws messing up the stone? Weld? Epoxy?
Please remember: we're not all guys!






RE: connecting retrofit PSL col into underside of existing steel lintel
I would likely be going that route, drill a hole clean through the angle, then install a concrete screw as specified in their installation instructions.
I assume this connection is just for nominal top of column lateral bracing.
RE: connecting retrofit PSL col into underside of existing steel lintel
RE: connecting retrofit PSL col into underside of existing steel lintel
If so, why not use a kerf plate at the centerline of the new column that is thru bolted to the column and welded to the bottom of the existing angle?
Mike McCann, PE, SE (WA)
RE: connecting retrofit PSL col into underside of existing steel lintel
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: connecting retrofit PSL col into underside of existing steel lintel
mike20793, I am concerned about the welding. And thanks for the reminder about the PSL - I've confirmed the treated is readily available here, and I'm using a standoff base and wrapping the top.
m^2, I like that idea... but welding.
KootK, I considered that, but there will be old people driving near this and I'd hate to create an issue.
******************
Just got off the phone with the Simpson folks again, and yep, we're going to weld. I'll just make sure the welder is properly certified!
Please remember: we're not all guys!
RE: connecting retrofit PSL col into underside of existing steel lintel
If the thought bothers you though, use Weldwood!
Mike McCann, PE, SE (WA)
RE: connecting retrofit PSL col into underside of existing steel lintel
RE: connecting retrofit PSL col into underside of existing steel lintel
Welding is likely the fastest and easiest option, as long as a certified welder is available.
RE: connecting retrofit PSL col into underside of existing steel lintel
It would also be WAY easier to install without the welding/screwing/etc on the outside beam.
cheers, friends.
Please remember: we're not all guys!
RE: connecting retrofit PSL col into underside of existing steel lintel
RE: connecting retrofit PSL col into underside of existing steel lintel
Please remember: we're not all guys!
RE: connecting retrofit PSL col into underside of existing steel lintel
Use a Simpson Post Anchor turned upside down on the top of the PSL and secured to the angle with Teks screws. Secure to the PSL with lag screws.
RE: connecting retrofit PSL col into underside of existing steel lintel
RE: connecting retrofit PSL col into underside of existing steel lintel
RE: connecting retrofit PSL col into underside of existing steel lintel