Forums >> General Discussion >> Revit Project Management >> How to model residential garage slab on grade with slope and stem walls

jabuchenauer

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I have a question regarding the modeling of residential garages as a slab on grade.  What is the best way of doing this?  Here are the details of the wall sections that I need to model.  The biggest problem I'm having is that I can't figure out how to make the small 6" stem foundation wall that comes up above the grade.  Please, help!  Will try and post more information as I go. 

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jabuchenauer

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Here's one of the problems I'm running into: depending on the name of the level that the walls are going up to, the wall joins get really crazy!

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teafoe5

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You can add a reveal to the wall that is the size you need to cut the wall.  It looks like your floor changes thickness so you will edit the floor type and change your floor structure to be variable and then use the modify sub elements to add points to offset that the top of your floor will follow.

The second image is hard to tell what is going on.

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jabuchenauer

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I think the biggest issue I'm running into is that in order for walls to be joined correctly, and not start cutting strange shapes out of the corners, the walls that are being joined have to be referencing the same levels.  so for the attached image, the foundation walls are referenced to a "garage floor" level that is at -4", and then the tops of those walls are attached to the bottom of the slab, which has to overlap everything.  Then, another, separate 6" foundation wall has to go from the "garage floor" level to the "first floor" level at 0".  But they have to be modeled as separate walls, otherwise I run into issues with wall joins.  The finished stud walls will then go on top of the 6" bump walls.  The problem I'm forseeing is when I have to make the finished wall go over the garage floor (where the slab edge is), that will will probably have to go down to the "garage floor" level, right? so that it attaches to the garage slab?

The reason I didn't do a reveal was because the slab is sloped, and I thought reveals could only be 90 horizontal or vertical.  The slab is at 1/4":12").

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jabuchenauer

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Joined: Sat, Mar 3, 2012
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I think the biggest issue I'm running into is that in order for walls to be joined correctly, and not start cutting strange shapes out of the corners, the walls that are being joined have to be referencing the same levels.  so for the attached image, the foundation walls are referenced to a "garage floor" level that is at -4", and then the tops of those walls are attached to the bottom of the slab, which has to overlap everything.  Then, another, separate 6" foundation wall has to go from the "garage floor" level to the "first floor" level at 0".  But they have to be modeled as separate walls, otherwise I run into issues with wall joins.  The finished stud walls will then go on top of the 6" bump walls.  The problem I'm forseeing is when I have to make the finished wall go over the garage floor (where the slab edge is), that will will probably have to go down to the "garage floor" level, right? so that it attaches to the garage slab?

The reason I didn't do a reveal was because the slab is sloped, and I thought reveals could only be 90 horizontal or vertical.  The slab is at 1/4":12").

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Multiple sloping slab on grade

9

Slab Edge Strategy - Revit 2014

1

SLOPE LIMITation?

5

Floor slab slope to drain

4

thickend slab

13