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Post Installed Anchors

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Mecseji

Structural
Nov 1, 2023
1
This question is specific to industrial facilities with lots of mechanical/process equipment. I have seen a divide in whether structural engineers feel post Installed anchorage for equipment needs to be shown and called out on drawings.

What opinions are there on this?

I have typically been taught to always show post Installed anchorage for equipment. This includes calling out the diameter, anchorage, embed, projection and location just the same as cast in place.

I understand that equipment anchors are installed after the equipment is in place, so locating is not necessary - but for me it is useful to coordinate rebar/foundation size. I also can't understand not showing it at all since otherwise how is it sized or bid by a contractor.

Thoughts?

 
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It depends. Is the design of the anchorage in my scope? If yes, then I'll show it on my drawings. If the anchorage of the machine is by others...then I'll show something, I won't dimension it, and I'll point to it and say "machine anchorage by others" or some such.
 


I would prefer to show post Installed anchorages. ( The post installed anchors installed by mechanical crew after the equipment is in place, ) In order to make sure the required edge distances are provided, it will be necessary to show ..


Say my experience..







Use it up, wear it out;
Make it do, or do without.

NEW ENGLAND MAXIM


 
phamENG said:
Is the design of the anchorage in my scope? If yes, then I'll show it on my drawings.

This right here.

Why...










So much...






White Space? @HTURKAK
 
Shown but usually not located. Noted as field locate, min edge distance xxx. If I knew where the anchors were going to go they would be cast in
 
All information is needed for post installed anchors except the location can be noted as field verify/locate.
You will either get an RFI or some construction contractor will just install whatever.
I work in a refinery and monitor construction everyday.
 
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