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Sunday, October 22, 2006

Complex Slabs and Paths

Modelling complex floors, roofs, footpaths etc....

Revit is not there yet when it comes to modelling complex slabs with falls in different directions, or footpaths on a steep and varied site, this tutorial tries to fill the gap.
We are going to model a footpath on a steep site with a few given RL�s (Relative Levels), and put a curb on it that will follow the path.

1. open a new project and click on the �site� tab
2. click the �toposurface� and proceed to create your shape using points.

(click to enlarge)

3. Finish surface and go to 3D view, my path looks like this:

(click to enlarge)

4. While in 3D view, export to DWG, for clarity reason, we�ll call it �path�
5. Start a new massing family, File->New->Family...
6. Go to 3D view and import the DWG we created 2 steps ago.
7. Save the Mass family and call it �path Mass� and load it into your project.
8. In your project, click the �Massing� tab and choose �Place Mass� go to 3D view for a better view.

(click to enlarge)

9. Click �Roof By Face� edit the roof and change properties to suit you, I changed it to a 200mm concrete roof with a paving render. Pick the whole mass and click �create roof"

(click to enlarge)

10. Revit will create your roof, in order for you to see it, you will need to hide mass. Now our path looks like this:

(click to enlarge)

As you can see, Revit uses triangulation to interpolate the point and that leaves some lines on the path, you can use the �Linework� tool to get rid of these lines and clean up your path.

11. Next, we are going to add a curb to our path, Under the �Modelling� tab click Host Sweep->Roof Fascia, choose your profile and click on the edges of the path to create your curb, to look like this:

(click to enlarge)

This tutorial can apply to many situations and it�s only a base for you to explore further. This is how my path looks like now:

(click to enlarge)

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