I started a Revit cource some time ago but due to the Covid regulations this course has been suspended for unknown time.
We only saw the basics so far. Now I try to learn it by myself (internet, youtube,...).
Now I'm trying to draw a concrete frame: precast concrete column with corbels and a precast concrete beam on the corbels.
I used a standard family for the beam and I made a family for the columns (just two heights at the top of the column).
So far I have this: see attachement
I can draw most of it, I can change the column and beam geometry.
But I have one problem. I always want 20mm between precast beam and column.
The beam has a "installation tolerance" variable of 20mm. So I draw the beam between the sides of the column and I have this 20mm.
But when I change the column width, the beam doesn't change with it.
And I can't figure this out. I should add some restraints I think but it never works wright.
Anyone can guide me the correct way?