vertical clearance to drill post installed anchor
vertical clearance to drill post installed anchor
(OP)
I have an I beam skid on slab. The I beam already has holes on bottom flange.
Can they drill into concrete if the I beam is just 12" high?
The top flange could be interfering with the drilling tool.
Of course they can remove the I beam skid and drill after they marked the location but can contractor drill with the skid on there?
I don't know all drilling tools out there and the clearance they require.
Can they drill into concrete if the I beam is just 12" high?
The top flange could be interfering with the drilling tool.
Of course they can remove the I beam skid and drill after they marked the location but can contractor drill with the skid on there?
I don't know all drilling tools out there and the clearance they require.






RE: vertical clearance to drill post installed anchor
RE: vertical clearance to drill post installed anchor
RE: vertical clearance to drill post installed anchor
RE: vertical clearance to drill post installed anchor
There is a 90 degree elbow that can be installed at the end of hammer drills for angled drilling. Not sure if the length of the drill bit and elbow could fit in a 12" space.
Drill a hole in the top flange to allow for drilling through the bottom flange.
Similar to XR250's idea, weld hold downs to the W12's and install the anchor in the hold downs.
RE: vertical clearance to drill post installed anchor
RE: vertical clearance to drill post installed anchor
http://www.decomfg.com/media/deco-heavy-duty-adjus...
They are not inexpensive, but probably cheaper than post-installing an epoxied bolt working through the skid hole or butchering the skid as noted above.
<tangent>
In 1972, I specified 72 such bolts, 4 feet long, embedded in a huge foundation/ inertia mass for two big flight simulators.
The anchors came with RED felt centering washers between the bolt and the sleeve.
The masonry contractor discarded the washers before placing the anchors in plywood templates at finished floor level, 4-1/2 feet above the dirt, to position the bolts.
After the first pour of concrete had hardened around the sleeves, the contractor figured out what the centering washers were for. I got to fly to Mobile and make a bunch of diagonal measurements to figure out if the bolt positions were acceptable, or if he had to demo many yards of concrete.
I figured they were close enough, given big clearance holes in our 'skid bases' and thick washers.
The simulators are still in operation, but I can't get clearance from USCG to look at them.
</tangent>
Mike Halloran
Pembroke Pines, FL, USA
RE: vertical clearance to drill post installed anchor
RE: vertical clearance to drill post installed anchor
RE: vertical clearance to drill post installed anchor
There may be some that will work on WFs, but you should check.
Mike Halloran
Pembroke Pines, FL, USA
RE: vertical clearance to drill post installed anchor
RE: vertical clearance to drill post installed anchor
RE: vertical clearance to drill post installed anchor
I have used a detail similar to Oldestguy except used a flat plate with a shim/plate washer at the anchor. I have seen similar details many times to anchor large air handling units. For seismic anchorage, the plate is typically field welded to the equipment. I have never seen crane rail clips , but they look great if they are readily available in the right size.
RE: vertical clearance to drill post installed anchor
So here's what I'd do.
Set Skid in place, paint holes for placement, remove skid, drill the holes, line skid up with holes, clean holes out, use epoxy, insert anchor, wrench it in.
RE: vertical clearance to drill post installed anchor
RE: vertical clearance to drill post installed anchor
The original post mentioned it, i just feel it is way easier than welding clips or casting in AB or trying to over engineer the process. and probably cheaper
RE: vertical clearance to drill post installed anchor
RE: vertical clearance to drill post installed anchor