#2 concrete anchors

[MacGruber22]

See attached. What are #2 anchors? They certainly don't come with the adjustable insert. I would tend to hook a #3 bar into the insert.

One in the hand is worth two in the bush.

 

[JAE]

MacGruber22,
I'm not sure what they are referring to exactly - my first impression would be that it is a wire size (#2 gage?) or a reference to a smaller bar than a #3.

You are right that the H&B site doesn't show anything required to meet their reported load capacities. I didn't find the specific 580 online - did see the 340 -
Is there an engineer-of-record you can contact and ask?



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[SlideRuleEra]

At one time there was a #2 rebar. They were smooth (no deformations), 1/4" diameter. Used them on a small project in the late 1970's; they may have already been obsolete at that time.

http://www.SlideRuleEra.net

http://www.VacuumTubeEra.net

 

[Ingenuity]

My limited online search did not find anything either, however the "HW580" refers to 5/8" dia askew bolts series which have been replaced by "HW340" series of 3/4" bolt inserts, that JAE referred.

For many years the standard wedge insert used a 5/8" diameter bolt. This eventually declined with the development of the 3/4" Wedge Insert which is now the standard. 5/8 Wedge Inserts are no longer specified in new construction.

However, for any renovation work, if 5/8" Wedge Inserts are already installed in the concrete having the correct bolt can save significant time.

So this must be an outdated reference and/or existing detail of as-built condition, so maybe #2 is 1/4" dia rebar as SRE referred.

 

[Lomarandil]

#2 rebar is still common in the developing world. I even have a memory of deformed #2 on one project? That might not be right.

----
The name is a long story -- just call me Lo.

 

[msquared48]

#2 wire must still be produced somewhere...

http://wirebond.com/?page_id=882

Mike McCann, PE, SE (WA)

 

[MacGruber22]

No one associated with this detail seems to remember what they were - nice. I found the cut sheet for the old 580. No anchor was required to develop the insert. Since it appears not have been integral to the insert, then there is missing information to describe the bend and length of rod required.

Fair to conclude 'belt and suspenders' is the reasoning for those "anchors".

-Mac