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Concrete Anchors vs City Code


EEtwidget

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So I am currently designing an exhibit that requires mounting to the concrete slab in the city of Los Angeles. The city is also the client so following code is important. I had planned on using drop-in style anchors on one portion. The portion I would use drop-in anchors is not structural. It's a 1/4" Stainless Steel 304 round plate, about a 54" outside diameter / 52" inside diameter. I wanted to use the drop-in style because then I can countersink the holes and use countersunk bolts to secure the plate... Minimizing any trip hazard.

Turns out that the City has removed the drop-in style anchors from their approved list and the only thing I see is stud mounted anchors... WTF!

I have to modify my drawing and show the attachment method I'm using, get the drawings wet-stamped and turned in by Monday. I did see what looked like a stud-mount wedge anchor with a removable countersunk bolt, anyone know if the City will let me use those?

City Approved Vendor List

http://netinfo.ladbs.org/rreports.nsf/Manufacturer?OpenView&Start=1&Count=1000&Expand=1#1

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What sucks is they changed this so last minute for you. I see Hilti is an approved vendor. They would be willing to help you out on a government job To meet your engineering spec's the problem is its due on Monday. The one thing that could help you is this Monday is Columbus day so the city might be closed. That's not a great solution.

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I saw that these Hilti expansion bolts are on the list in stainless and carbon steel. https://www.us.hilti.com/anchor-systems/expansion-anchors/r6281 Would these work in your situation? They are not cheap though.

 

This is what the city has it listed under

  25701 03 16 00 05/01/2015 Hilti Kwik Bolt TZ Carbon and Stainless Steel Anchors in Concrete
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I can not disclose a lot of detail until the job is finished, but I can show you the one part I am talking about. I am going to the office tonight to finish up some drawings so I'll generate something then.

 

As far as the anchor goes,

 

I'm after something like this:

post-28428-0-50844900-1413063696_thumb.j

 

That way I can bolt directly to the deck without nuts or threaded rod sticking out.

 

I did find this:

post-28428-0-16477000-1413064826_thumb.j

 

I don't know if the city has approved any of this type of anchor but if so, it will do the trick.

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I use the hilti(first imagine) to fix the hilti DD 400 diamond core on the wall or anchor the scaffolding to the building.i guess it cost a lot like everything hilti.can't you fix it a rebar (barra filettata in Italian sorry ignored translation) on the wall with chemicals(like hilti HIT black cardrige)?the hilti anchors I used seems very more tough then the second image...and with the hilti I use a kind of chisel to bang in the hole.knowing hilti it will be buy only from they

hilti is cool but a little of "stiff upper lip"...

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I did find this:

attachicon.gifP434MZR.jpg

 

I don't know if the city has approved any of this type of anchor but if so, it will do the trick.

 

Your approved list has 

25577M 04 05 19.16 01/01/2016

Kwik Bolt 3 Masonry Anchors

 

 

These https://www.us.hilti.com/anchor-systems/expansion-anchors/sc-CLS_SC32278 countersunk anchors are Kwik Bolt 3 anchors.

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Your approved list has 

25577M

04 05 19.16

01/01/2016

Kwik Bolt 3 Masonry Anchors

 

 

These https://www.us.hilti.com/anchor-systems/expansion-anchors/sc-CLS_SC32278 countersunk anchors are Kwik Bolt 3 anchors.

That might not work, I'll have to run it by the structural engineer. Doesn't say it can be used in cracked concrete, and I think that's one of the requirements.

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Check these out: http://www.powers.com/product_06401SD.php

 

I don't know a whole lot about anchors, but I've learned a little since we purchased Powers a few years back. Drop in's aren't approved in my state either, a lot of customers started using these instead. It's also on the approved list you provided a link too. 

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