Corrugated sleeve manufacturer 2

[WARose]

I am making a cold joint by putting a precast reinforced concrete slab onto a precast reinforced concrete beam (with a ledge). The trick is: I’d like to develop some re-bar in this connection……so I was thinking of using a corrugated sleeve. (See attached pic.) I’ve seen these things before…..but I cannot remember who makes them. Can you suggest a manufacturer? Googling, what I have found is for a different application.

 

[WARose]

Forgot to attach pic (sorry). see below

 

[bones206]

I was looking for the same thing a few weeks ago. Didn’t find much except this: Link

 

[dhengr]

WARose:
I don’t have a specific manuf’er. name for you. But, any sheet metal shop could roll form any dia. and length you wanted, out of most any kind of sheet metal. They could screw, rivet or spot weld the long seam. They could put small tabs on the t&b edges to nail them into the forms. These sht. met. sleeves might be kinda difficult to place and hold in position in a slab casting bed. You could also core drill the holes in the finished slab edges, and fill any slab cells with some wadded material to contain the grout.

 

[WARose]

thanks bones.

 

[Ron]

WARose....the smallest I know of is 6" diameter. Here's a link to a supplier....

Corrugated Metal Pipe

If you can get it uncoated, it will be better for embedment in concrete. It is generally galvanized, which can be a bit problematic in concrete, but still do-able.

 

[Ceinostuv]

Try looking up NMB Splice Sleeves - I'm not quite sure this is what you're looking for and I've only heard of them in passing, so I've never actually designed with them myself.

Judgement-In-Training

 

[Brad805]

We use post tension duct for this. 2.5" diameter, 3" and 4". Look in PCI page 6-5 and 6-6 (7th edition). Here is one supplier:

https://www.dsicanada.ca/products/p...nd-post-tensioning-system/installation/ducts/

NMB splices are a very specific animal for something other than this.

 

[TLHS]

You could buy a Wilson or Contec anchor bolt sleeve and then cut both ends off

http://www.wilsonanchorboltsleeve.com/

 

[WARose]

Thanks for the feedback guys.

One thing I was noticing is: a lot of the manufacturers of this thing aren't giving a development length on it. (I.e. how much length of the sleeve has to be in concrete for the bar to be developed?)

I found this paper that has such a equation (see Figure 11):

https://www.fhwa.dot.gov/hfl/partnerships/precast_bridge/hif13037/