Complex curved sloped auditorium floor

[jspartz]

I'm trying to do a sloping and curving floor in Revit. I have read other threads on this, but none have really presented a solution for this one. It's a gradual slope with a curve, not a straight line and it's curving from right to left to be able to stop at the right height. On top of that it's not JUST one arc to another arc, there are three segments. So, I created this simple model in Sketchup to convey what the floor needs to do. Where it is open, is where the connecting floor needs to be.

I tried a simple sloped floor (can't do much with that). I tried solid blend, but that doesn't let you do much either. I tried a sweep which it told me Revit could not make. It can make the middle portion and then the end portions as three different sweeps, but they do not clean up with each other well. I haven't tried using a roof (I don't know if there is more flexibility there). Has anyone done something like this outside of Revit and then brought it in, say in VIZ?

[Scott D Davis]

Model it as a Mass in Revit, much like you modeled it in Sketchup, and then apply floor by face to it. Your mass can be a combination of solids and voids in extrusion, sweeps, blendss and/or revolves to get the shape you need.

<edit: attached an example, this was done with a floor at the top, a florr at the bottom, and a mass sweep in between, Sweep path was the top floor arc, and the profile shape was the concave floor shape. I tried to apply floor by face, which didn't work, but roof by face does.>

[jspartz]

I'll try that out. If it doesn't work the only other solution I can think of is to do it in another 3D modeling program and import it as a generic family. I say it's time the factory take this program to the next level and add a solid and void mesh object, which will let you manipulate vertices. The possibities of what you could create would be endless then.

[jspartz]

I was able to do it with mass elements (solid sweeps and voids) but like you said I could not create floor by face. I could create a roof or wall by face though. I think that I could do an in-place floor family the same way to get it in as a floor instead. Thanks a lot!

[mmodernc]

Don't forget the model as topo, export to dwg, import to create a mass family trick, then do above-curtain systems works too, just change the panels to whatever-you may have to align textures across the panels-good way of getting surface textures on your landforms too,

[dpasa]

I really hate this kind of discussions, trying to find workarounds for such basic modeling. This should be a 3 minutes work with any decent building modeler like the one Revit should be...
Anyway, hope dies last and as we wait for R10... we should be more optimistic.

I would prefer to use a 3rd party free or beta modeler like MoI (www.moi3d.com) which can do the work and use the exported 3ds through acad or viz

Just a small example.

[Scott D Davis]

IMO, building a Mass in Revit is not a workaround. The tool was built specifically to handle geometry like this.

Beyond building a mass and using "Roof by Face" I could have built the example with an inplace family floor using no outside modeling tools.

Dpasa, your example for another program isn't even correct, because it needs to be a double compound curve. You example curves only in one direction.

[sbrown]

I would argue, this is exactly what an in-place floor family is for and is how you should do this.

[jspartz]

I took my mass elements and copied them into a in-place floor family which worked out. Now I can use floor based families on it. Thanks!

[mmodernc]

It takes about two minutes and forty four seconds.