Retaining walls in Revit LT???

[biztrobill]

Hi, All. I'm modeling terrain in LT and I need retaining walls. Pads won't do the job because I need warped surfaces on both sides of the retaining wall. I'm actually considering doing a 2d grading plan but that's gotta be a dead end idea. Any thots? Workarounds? Suggestions?

[ToanDN]

Something like this?

[barthbradley]

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@biztrobill wrote:

Pads won't do the job because I need warped surfaces on both sides of the retaining wall. 

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What do you mean by "warped surfaces"?  

[barthbradley]

Maybe you mean sloped terrain on both sides?

[biztrobill]

Thanks, ToanDN.

Your illustration looks like it might be a pad, sloping in one direction, right? I'm trying to make a retaining wall that cuts the toposurface so I can slope each side of the wall independently and in more than one direction (warp). Screen clip attached.

Maybe there's a workaround, like splitting the surface or subregions? 

[barthbradley]

Something like this?

[biztrobill]

Thanks, barthbradley. Actually I'm not looking for a wall shape. I'm looking for a way to use a retaining wall to let me define different 2-direction slopes on either side. It's a 3D problem. As I tried to explain, a pad won't work because it only slopes in one direction.

[ToanDN]

It was a real retaining wall sitting on a pad.

[barthbradley]

Both photos I posted are modeled.  As I showed, I used a SLOPED Building Pad which also inserts with it a Topo Infill which it cuts the Toposurface.  FWIW: This is how cut/fill computations are made in Revit -- from the Topo Infill; not from the Pad. 

BTW, the Section Views (of the model) were done to show how I was interpreting a "warped surface".    I've never heard that term used in relationship to site work such as you are describing.   

[barthbradley]

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@biztrobill wrote:

As I tried to explain, a pad won't work because it only slopes in one direction.

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Have you considered using two pads sloping in opposing directions.  

You know you can "cut" the Toposurface yourself?  I mean, you don't need a pad to cut it.   If you know the elevations and/or slopes, it just a placing/removing points at the right locations.  

[biztrobill · Accepted solution]

I might have figured it out. I used the Split Surface tool to define a rectangle for the area on the uphill side of my retaining wall, and then I deleted some of the points and placed new points to define the new spot elevations. The wall doesn't do the cutting, although that might be a nice feature. Screenshot attached. 

Thanks for the help! 

[barthbradley]

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@biztrobill wrote:

I deleted some of the points and placed new points to define the new spot elevations.

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Exactly!!! 

[ToanDN]

The retaining walls don't cut but you can draw a pad underneath the walls, same size as the walls, to cut the topo. Look at the picture I posted earlier.

[barthbradley]

4 Building Pads.