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Can beams outrank floors at joining?

8 ANTWORTEN 8
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Nachricht 1 von 9
Prvoime
399 Aufrufe, 8 Antworten

Can beams outrank floors at joining?

#1 is what I'm starting with.

#2 is what I get when I join beam and floor, no matter the pick order.

#3 is what I need. Is there a way to get it by joining? Or some other way other than painstakingly trace floors around every beam in the entire building? I have no issue if there is some way of modifying the beam family so that it just conceals the floors in sections, but keeps its hatch.

 

Beam_Floor.jpg

8 ANTWORTEN 8
Nachricht 2 von 9
ToanDN
als Antwort auf: Prvoime

Switch Join Order and tick Multi switch box.

Nachricht 3 von 9
Prvoime
als Antwort auf: ToanDN

@ToanDN 

Unfortunately no, tried that. That literally joins them. See #2.

Also tried adding a masking region in the beam family, just to test if some trickery with hatching would do the concealing trick. Weirdly that only works on the beam that has the floor cut out around it #3, the one that is in the floor is unaffected #1. They're the same family.

It's important that the beam is seen as a separate object (because it is).

 

Beam.jpg

Nachricht 4 von 9
RobDraw
als Antwort auf: Prvoime

How is the floor supported if it's not on the beams?


Rob

Drafting is a breeze and Revit doesn't always work the way you think it should.
Nachricht 5 von 9
Prvoime
als Antwort auf: RobDraw

@RobDraw 

It rests on beams and walls that go in the opposite direction.

 

Anyhow, I'm gonna mark this one solved.

For example I posted here, the solution is to have beams and floor of different material, then join/change order works.

For my specific case, it can't be done. I have far more complex structural deck profile and everything brakes when I try joining them.

Also, if the beam is the same height as the floor, it won't work.

I'll just use filled regions once I have sections positions set.

Nachricht 6 von 9
barthbradley
als Antwort auf: Prvoime

I have the same question as @RobDraw.  What's supporting the Metal Deck?  If floor above the deck is "joined" to the Beams, as you want to show, then it looks like the decking is laid in-between and laterally supported by Beams.  I've never seen construction like this.  Curious. 

Nachricht 7 von 9
Prvoime
als Antwort auf: barthbradley

@barthbradley 

As I said, they rest on walls and beams that go in the opposite direction. Also, this was just an example, I have a more complicated profile, which is not a metal decking at all. It's a semi-prefabricated ceiling with hollow blocks.

Here's an illustration, see the rebar above the far right wall? Also above the back wall. It forms a beam with the concrete that is poured on the whole ceiling. And those beams are usually formed above most walls, so when you look at the section in this direction, it just looks like nothing is supporting the ceiling.

 

CZ_MKT_POR_3D_ceiling_porotherm_04.jpg

Nachricht 8 von 9
barthbradley
als Antwort auf: Prvoime

Yes; I understand that construction. Essentially, concrete poured over hollow-core plank system.  

 

Floor w/custom Deck Profile atop Beam System will get you a fair representation, although the Deck Profile could be omitted from the Floor Type and instead, Join the Beams to the Floor.  Joining will remove volume of Floor at union.  Either way, I imagine the reason you are modeling it this way is to obtain a more accurate takeoff for estimating concrete.   

 

Hollow1.pngHollow2.png

 

 

 

 

 

Nachricht 9 von 9
jainsrashti15
als Antwort auf: Prvoime

Yes, this is a very common occurrence. Having a column at the ends of every single beam would be unfeasible. There would be a very little usable area available for building occupants.

To get more knowledge, you should do Revit Architecture Training from the industry expert professionals.

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