calimurray

Whats the best concrete anchors for supporting a pipe rack,
I used 3/8" drop in anchors which have a 4100lb pull out value, which seemed to work well. I hope they will be strong enough to support my rack.

I'll have several 1/2" and 3/4" conduits and 1 - 3 1/2" conduit on the rack I was planning on providing extra support for the 3 1/2" conduit with minnies and rod.

Any one have any suggestions on good concrete anchors?

randomkiller

We always use drop ins for that type of hanging. Hilti shot in 3/8" studs for lighter hanging.

__________________
A Veteran - whether active duty, retired, guard or reserve - is someone who, at one point in his life, wrote a blank check made payable to "The United States of America," for an amount of "up to and including my life."

"One Nation Under God"

pudge565

I dunno how big is your rack?

Bkessler

3/8ths drop in or wedge anchors.

__________________
When ls lunch

nick

[quote=calimurray;63867]Whats the best concrete anchors for supporting a pipe rack,
I used 3/8" drop in anchors which have a 4100lb pull out value, which seemed to work well.
Well 3/8 anchors are good enough we also use 1/2 sometimes but we run buss duck with just 3/8 anchors and were talking double stacked aluminum 4000 amp each if its copper buss we use 1/2 go for it your fine . we use the 1 inch length 3/8 there not coming out ever. take care

Jeff000

Those drop in anchors work great, you are talking about 8200lbs of weight per stut support. You have a small rack for needing anything more then that.
I am just working on a rack with ten 3" and we are just using the 3/8 anchors. I can even stand on the rack (but dont tell the boss )
I'll have to take a pic, its a nice looking rack.

nick

Well we took a tapcon once and drilled it into a 3000 psi concrete deck then took a chain fall and hooked a chain up to it , guess what ? It pulled out but it took two of us to pull the chain and the force was unreal ,the 1/4 inch tapcon pulled out with a chunk of concrete we then did the same with a 1/4 anchor it did not come out we could not turn the chain on the chain fall . now that lots of force i trust a 3/8 anchor for just about anything we use it on our tuggers ,large wire pullin pulleys , rigging switchhgear set on pads and transformers at over 5000lbs most mechcanical contractors use these on heavy pipe work like chiller pipes but 1/2 inch now thats a lot more weight then a electrical conduit . we just got a new self drilling screw it screws into concrete by itself using a 1/2 hammer drill and has a 3/8 threaded coupling on its end dont know the name of it anyone know ? best to ya

william1978

I'm a big fan of lead anchors or I think there also called wedge anchors.

MDShunk

Me too; they expand the most of any anchor. The problem is that in a fire, they will melt and the rack will fall. They're often prohibited for overhead anchoring just for that reason.

When I have heavy crap to anchor overhead, I let the guys at Fastenal spec the anchoring system. They give you a little print detail and the whole nine yards if you ask. Adds another person to blame later on if anything ever goes wrong.

__________________

KayJay

Could it have been the ITW Sammy Screw?
They have a self-drilling threaded rod hanger like that for concrete.

220/221

I prefer sleeve anchors. The depth of the hole isn't as critical.

nick

yes it looks like a sammy screw but concrete type .best to yas