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Tag relative to F.F.

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Message 1 of 11
Nathan.HilsonN67V6
654 Views, 10 Replies

Tag relative to F.F.

Nathan.HilsonN67V6
Advocate
Advocate

Figured this would be better for this board. I'm running into a tricky situation where the floor slopes @.3% & I want to tag the elements above in relation to the F.F. instead of the level. Is there any way to do this either in standard Revit or dynamo/scripting? 

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Tag relative to F.F.

Figured this would be better for this board. I'm running into a tricky situation where the floor slopes @.3% & I want to tag the elements above in relation to the F.F. instead of the level. Is there any way to do this either in standard Revit or dynamo/scripting? 

10 REPLIES 10
Message 2 of 11

barthbradley
Consultant
Consultant

Give us a little more info.  What are the elements?  How are they hosted?  etc. etc. 

 

Maybe you can post an RVT? 

 

 

Give us a little more info.  What are the elements?  How are they hosted?  etc. etc. 

 

Maybe you can post an RVT? 

 

 

Message 3 of 11

Nathan.HilsonN67V6
Advocate
Advocate

Specifically fabrication parts such as pipe & ductwork. I want to tag the elevation of the pipe in relation to the finished floor instead of the level. 

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Specifically fabrication parts such as pipe & ductwork. I want to tag the elevation of the pipe in relation to the finished floor instead of the level. 

Message 4 of 11

barthbradley
Consultant
Consultant

Elevation of pipes and ductwork above finished surface of floor that slopes 3/8" inch per foot (e.g. 3%)?  I'm lost.  How are those elevations relevant or important.  I mean, if the pipe and ductwork is hung from the ceiling and parallel to the ceiling, what does the distance to the sloping floor that is transverses matter?  Serious question.  

Elevation of pipes and ductwork above finished surface of floor that slopes 3/8" inch per foot (e.g. 3%)?  I'm lost.  How are those elevations relevant or important.  I mean, if the pipe and ductwork is hung from the ceiling and parallel to the ceiling, what does the distance to the sloping floor that is transverses matter?  Serious question.  

Message 6 of 11

Nathan.HilsonN67V6
Advocate
Advocate

The install drawings we create for the field contain all of the B.O.P.(Bottom Of Pipe) elevations to assist in field installations once an area has been signed off amongst all trades. Over that entire span there is a total offset of 1'-5" on one slab & 1'-7" on another. The G.C. is wanting elevations to pull from F.F (Typically most accurate). As far as it being hung it is typically hung from the structure or supplemental structure (not the ceiling) with strut, hangers, etc.. with rod locations placed through points or Trimble points (basically GPS for hanger locations). In this case it is an airport/warehouse with tenant space and not all the rooms have ceilings.  So long story short if we were to have a running pair of 8" Stainless Steel mains and we find at the other side of the building they are 1'-7" off center...a pretty big price tag will come along for us to fix it lol. Also, not all pipe is run parallel to the ceiling. There are some systems in which the pipe is sloped such as DWV & condensate. 

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The install drawings we create for the field contain all of the B.O.P.(Bottom Of Pipe) elevations to assist in field installations once an area has been signed off amongst all trades. Over that entire span there is a total offset of 1'-5" on one slab & 1'-7" on another. The G.C. is wanting elevations to pull from F.F (Typically most accurate). As far as it being hung it is typically hung from the structure or supplemental structure (not the ceiling) with strut, hangers, etc.. with rod locations placed through points or Trimble points (basically GPS for hanger locations). In this case it is an airport/warehouse with tenant space and not all the rooms have ceilings.  So long story short if we were to have a running pair of 8" Stainless Steel mains and we find at the other side of the building they are 1'-7" off center...a pretty big price tag will come along for us to fix it lol. Also, not all pipe is run parallel to the ceiling. There are some systems in which the pipe is sloped such as DWV & condensate. 

Message 7 of 11

barthbradley
Consultant
Consultant

Thanks very much for taking the time to write that thorough explanation.  Makes more sense to me now.  

 

BTW: I used the term "ceiling" colloquially.  

Thanks very much for taking the time to write that thorough explanation.  Makes more sense to me now.  

 

BTW: I used the term "ceiling" colloquially.  

Message 8 of 11

Nathan.HilsonN67V6
Advocate
Advocate

No problem at all. Any info I can give to get this figured out is fair game. 

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No problem at all. Any info I can give to get this figured out is fair game. 

Message 9 of 11

yes_and_no
Collaborator
Collaborator

This sounds complicated (to me).

If I were you, I ll give generic slopes and starting point on plans and let the gc figure out their pipe run with some leaway. Tagging exact height only comes back and bite you, but that's your call.

This sounds complicated (to me).

If I were you, I ll give generic slopes and starting point on plans and let the gc figure out their pipe run with some leaway. Tagging exact height only comes back and bite you, but that's your call.

Message 10 of 11
ToanDN
in reply to: Nathan.HilsonN67V6

ToanDN
Consultant
Consultant
Accepted solution

While it is an interesting challenge to tackle, I totally agreed with @yes_and_no here.  This should be a means and methods  issue that need to be taken care by the sub.  If you do it then you are just doing their job.  Your time is one thing but liability is a greater concern.  If you end up doing it, I would suggest the information to be provided either off the records, or with some carefully crafted liability clause.

While it is an interesting challenge to tackle, I totally agreed with @yes_and_no here.  This should be a means and methods  issue that need to be taken care by the sub.  If you do it then you are just doing their job.  Your time is one thing but liability is a greater concern.  If you end up doing it, I would suggest the information to be provided either off the records, or with some carefully crafted liability clause.

Message 11 of 11

Nathan.HilsonN67V6
Advocate
Advocate

Forgot about this. @ToanDN had a working solution but ended up going a different route in the field to fix the issue. Thanks for all the help!

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Forgot about this. @ToanDN had a working solution but ended up going a different route in the field to fix the issue. Thanks for all the help!

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