Model monolith ramp and curb with hosted railing

[cbt990]

Hello,

I am revising the design of a ramp on my site to reflect the actual formed monolithic structure:

To model this, I swept the cross section along the ramp profile with no issues.

But now I can't host my railing to the monolithic ramp, whether modelled as a Site or Floor category. 

Currently it is hosted to a wall which is hidden from view:

So how can I model the monolithic ramp and maintain the ability to host my railing to it

Thank you.

[barthbradley]

Why don't you just to it as a sweep?  

[cbt990]

I made it as both a Site sweep and a Floor sweep. Can't host the railing onto either. Should I be able to?

[barthbradley]

In-Place Family? No, if you mean you just Categorized the Family as Site or Floor.  

[cbt990]

So what is the right way to create the element such that rail hosting ability is enabled?

[barthbradley · Accepted solution]

Why does the Ramp need to be monolithic?  You can always Join Geometry to make it appear monolithic. 

Sloped Floor w/ Slab Edge and hosting Railing:

... or more like this: 

[cbt990]

Right. In that case, the ramp should be a floor with modified sub elements, and the thickened edge should be a modeled in place floor so that joining works?

[barthbradley · Accepted solution]

What I showed above was achieved using the floor slope arrow tool, but sure you could do the same with Modify Sub Elements.  

...the main point I'm making is that Join Geometry is all you need to make something look monolithic.  

[cbt990]

How do you preserve orthogonal ends of the sweep?

[ToanDN]

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@cbt990 wrote:

How do you preserve orthogonal ends of the sweep?

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If you create the curb using a concrete beam then you can chamfer it with a ref plane or an opening by face.

If you create the curb using a model in  place sweep then add a void in the same model in place to cut it, or add a  small horizontal segment at the end, or use a blend instead of a sweep.

If you model the curb using a slab edge then the end is always plumb.

[cbt990]

Great, learned about the Slab Edge tool. Thank you!

[barthbradley · Accepted solution]

Why don't you use Slab Edges or model it as another Floor? As long as the elements are touching and share the same material, they will join together to look monolithic.  

[cbt990]

Revit doesn't allow me to select a floor as a target for a slab edge, only a slab.

[ToanDN]

Sequence:  Create a flat floor, add slab edges, then add slopes to the floor.

[cbt990]

The slab edge doesn't follow the edge once the floor sub elements are modified:

[cbt990]

I was able to get it to work with the following sequence:

Create flat floor

Split floor into ramp segments

pick individual lengths of edges for the slab edge, rather than the whole length of the ramp.

Then ramp can be modified!

[ToanDN]

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@cbt990 wrote:

I was able to get it to work with the following sequence:

Create flat floor

Split floor into ramp segments

pick individual lengths of edges for the slab edge, rather than the whole length of the ramp.

Then ramp can be modified!

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Isn't you sequence the same as the one I posted?  The idea is you need to add slab edge where there is no slope at the floor.

[cbt990]

The monolithic join isn't working for me:

I looked a little closer and noticed that the boundaries of the thickened edge and ramp are not perfectly coincident along the entire length of the ramp:

The gap measures to 1/256".

I can't get it to work in either order:

Any suggestions to troubleshoot? I already tried bumping up the lip 1/256" and it changed the actual dimension value to 0-0 but it still won't join.

Thank you

[barthbradley]

Is the misalignment on purpose? If the targets aren't aligned, then use the Linework Tool to clean up.  

...wait a minute! Something doesn't compute here. Post the File.  

[cbt990]

Could it be owing to the fact that I have a variable thickness ramp with modified sub elements?